VI-HAM™, VE-HAM™ VxHAMxM (Compatible with VI-26x and VI-J6x modules) Actual Size: 4.6 x 2.4 x 0.5 in (116,8 x 61,0 x 12,7 mm) S ® C US C NRTL US Harmonic Attenuation Module Features • Unity power factor • Safety agency approvals: CE marked, cTÜVus, cURus • Meets IEC 6100-3-2 for line Current harmonic content • Reduces peak and RMS line currents • Universal input: 85 – 264 Vac: 50/60 Hz • Up to 600 W of power • Power density up to 100 W/in3 • Adaptive output voltage control • Short-circuit protection • Input surge current limiting • Converter enable • Power OK output • Efficiency: 90-94% typical • RoHS compliant Absolute Maximum Ratings Parameter Rating Unit 5 (0.57) in- lbs (N-m) 750 (400) °F (°C) Operating temperature –55 to +85 °C M-Grade Storage temperature –65 to +100 °C M-Grade 3 mA 265 280 L to N voltage Mounting torque Pin soldering temperature Auxiliary output Notes Vac Vac Continuous 100 ms # 6-32 or m3.5 Note: High Boost Ham recomended for new designs (VI-HAM-xL) Product Highlights The Harmonic Attenuator Module (HAM) accepts an input of 85 – 264 Vac. It provides a DC output compatible with Vicor’s VI-26x, VI-J6x and user-defined Maxi, Mini and Micro DC-DC converters. The combination of a HAM, one or more Vicor DC-DC converters, and the 30205 line filter, listed on page 8, offers a high density power solution meeting EN61000-3-2. Part Numbering VI - HAM RoHS Designator VI = Non RoHS Compliant VE = RoHS Compliant Product Type HAM = Hamonic Attenuator Module HAMD = Hamonic Attenuator Module Driver BAMD = Hamonic Attenuator Module Booster (HAMD and BAMD can be used in parallel or in arrays for applications that require more power than that available from a single HAM) For application information please see the Design Guide at vicorpower.com. VI-HAM™, VE-HAM™ Rev 2.3 vicorpower.com Page 1 of 10 4/2013 800 735.6200 - C Product GradeTemperatures (°C) Grade Operating Storage E = –10 to +85 –40 to +100 C = – 25 to +85 –40 to +100 I = – 40 to +85 –55 to +100 M = – 55 to +85 –65 to +100 M Output M = 600 W VxHAMxM ELECTRICAL CHARACTERISTICS Electrical characteristics apply over the specified operating voltage range, output load and baseplate temperature, unless otherwise specified. All temperatures refer to the operating temperature of the baseplate. Specifications apply for AC mains having no more than 5% total harmonic distortion. INPUT SPECIFICATIONS (HAM-xM, HAMD-xM, BAMD-xM) Parameter Min Operating input voltage HAM, HAMD, BAMD AC line frequency Power factor Typ Max Unit Notes 85 264 Vac Rectified AC for HAMD, BAMD 47 63 Hz Unit will operate at 400 Hz but may not meet PF or THD specs 0.99 115/230 Vac, 50 – 100% of full load Total harmonic distortion (line current) 7.5 8.5 % % 115 Vac, sinusoidal input, full load 230 Vac, sinusoidal input, full load Inrush current 20 13 Amps Amps 230 Vac, full load 115 Vac, full load mH External to HAM module (see Fig. 10) CM Filter Inductance 3 6 DM Filter Inductance 0.2 0.35 0.75 mH External to HAM module (see Fig. 10) Min Typ Max Unit Notes 600 Watts See power derating graph, Fig. 3 Output voltage 258 360 260 365 262 370 Vdc Vdc 115 Vac In 230 Vac In (see Fig. 3) Efficiency 90 93 91 94 % % 115 Vac, sinusoidal input, full load 230 Vac, sinusoidal input, full load External hold up capacitance per HAM 500 3,000 µF 300 W, 500 µF minimum, external to HAM Ride through / hold up time 16 OUTPUT SPECIFICATIONS Parameter Maximum output power 7 Ripple 5 Short circuit shut down current CONTROL SPECIFICATIONS Parameter Min Typ ms 600 W output with 1,000 µF hold up capacitor, external to HAM Vp-p 6 Vp-p 115 Vac, full load, 1,000 µF hold up capacitor, external to HAM 230 Vac, full load, 1,000 µF hold up capacitor, external to HAM 100 mA Foldback current limiting Max Unit Notes 230 Vdc Module enable/disable threshold 240 Vdc 19 600 W, 1,000 µF minimum, external to HAM 10 Power OK threshold Auxiliary output Includes external rectifier loss for HAMD and BAMD 23 Vdc ≤ 3 mA 3 mA Do not overload or add external capacitance VI-HAM™, VE-HAM™ Rev 2.3 vicorpower.com Page 2 of 10 4/2013 800 735.6200 VxHAMxM ELECTRICAL CHARACTERISTICS (CONT.) ELECTROMAGNETIC COMPATIBILITY Parameter Standard Notes Transient / surge immunity EN61000-4-5 1 kV L-N, 2 kV L-PE, 30205 filter and 30076 MOV Line disturbance / immunity EN61000-4-11 Main’s interruption or brown out Flicker / inrush EN61000-3-3 20 A peak inrush at 230 Vac input Harmonic current EN61000-3-2 7.5% THD SAFETY SPECIFICATIONS Parameter Min Isolation (in to out) Dielectric withstand (I/O to baseplate) Typ 150 Safety Standards GENERAL SPECIFICATIONS Min Size Weight Baseplate earthed pF Input to baseplate Notes cTÜVus, cURus CE Marked Typ Max Low Voltage Directive Unit 4.6 x 2.4 x 0.5 (116,8 x 61,0 x 12,7) in (mm) 6.4 (180) oz (g) Notes Solder plate over copper alloy Pin material GE ULtem 2100 black #7310 UL94-VO rated Cover material MTBF HAM HAMD BAMD Vdc Markings UL60950-1, EN60950-1, CSA 60950-1 Notes Isolation provided by DC-DC converters 2,121 AGENCY APPROVALS Thermal shut down Unit None Capacitance Parameter Max 90 100 420,000 424,000 818,000 °C Baseplate temperature hrs hrs hrs GB, 25°C GB, 25°C GB, 25°C VI-HAM™, VE-HAM™ Rev 2.3 vicorpower.com Page 3 of 10 4/2013 800 735.6200 VxHAMxM TECHNICAL DESCRIPTION The HAM Figure 1, consists of a full-wave rectifier, a high-frequency zero-current switching (ZCS) boost converter, active inrush current limiting, short-circuit protection, control and housekeeping circuitry. The incoming AC line is rectified and fed to the boost converter. The control circuitry varies the operating frequency of the boost converter to maintain the output voltage of the HAM above the peak of the incoming line, while forcing the input current to follow the waveshape and phase of the line voltage. The AC input current follows the voltage waveform and a power factor better than 0.99 is achieved. Operating efficiency of the boost converter is optimized at any incoming line voltage by an adaptive output voltage control scheme. ZCS Boost Converter Inrush & Short Circuit Protection Current Sense Voltage Waveform High Frequency Control Output Voltage Control Module Enable & Housekeeping Power OK Circuitry Gate In Gate Out + DC Out – Note: Non-Isolated Output Without PFC Aux. Supply Figure 1 — HAM block diagram Output Power (W) With PFC Figure 2 — Input voltage and current wave forms, with and without power factor correction NOTE: No input to output isolation. 700 435 650 400 600 365 550 330 derate output power 8 W/V for Vin <110 Vac 500 295 450 260 400 225 350 85 190 95 105 115 125 135 145 155 165 175 185 195 205 215 225 235 245 255 265 110 Vac Input Voltage VRMS Figure 3 — Output voltage and power rating versus input voltage Rated Output Power Output Voltage VI-HAM™, VE-HAM™ Rev 2.3 vicorpower.com Page 4 of 10 4/2013 800 735.6200 Output Voltage (Vdc) Rectifier AC Line The output voltage of the HAM varies as a function of incoming AC line voltage, Figure 3. On a nominal 120 Vac line the output voltage of the HAM is 260 Vdc — well within the input operating voltage range of Vicor VI-26x and VI-J6x converters. As input line increases, so does the HAM output voltage; at 220 Vac the delivered voltage will be about 350 V. For any given input line voltage, the HAM maintains enough headroom between the output voltage and peak input voltage to ensure high quality active power factor correction without unnecessarily sacrificing operating efficiency. VxHAMxM VI-26x or VI-J6x DC-DC Converters F3 Input V1 C5 F1 L1 L1 GND Vicor Line Filter P/N 30205 6.3 A L2/N GATE IN R1 C9, C10 R4* D1 D2, D3 D4, D5 V1 C5–C8 F1, F2 F3 P/OK E/O A/S VI-HAM-xM GATE OUT L2/N LINE Component Designation C1 C2, C3 C4 + OUT L1 Description 0.1 µF ceramic, 50 V 0.01 µF ceramic, 50 V Hold up capacitor, 500 to 3,000 µF L2/N +IN D2 R1 C1 D1 G ATE IN Driver G ATE OUT C2 D4 C9 – OUT -IN LOAD C6 Y-Capacitor Vicor Part Number C7 F2 Available as a HUB from Vicor (see adjoining table) 50 KΩ 0.2 µF to 500 V 100 KΩ, 2 W 1N4691 zener, 6.2 V 1N4006 diode, 800 V 00670 1N5817 schottky diode, 20V 26108 275 V MOV 30076 4,700 pF Y2 cap. 01000 Use recommended fusing for specific DC-DC Converters 10 A, 250 V +IN D3 G ATE IN C4 D5 R4* Driver G ATE OUT C3 C10 -IN C8 Hold up Box (HUB) µ µ Y-Capacitor * A 100 K, 2 Watt resistor is used for every 1,000 µF of hold up capacitance. µ Figure 4 — Connection diagram HAM / DC-DC converters PIN FUNCTION / DESCRIPTION L1 and L2/N (HAM) An appropriate line filter is required to limit conducted emissions and ensure reliable operation of the HAM, see page 8. Connect single phase AC mains to the input of the line filter via a 10 A, 250 V fuse. Connect the output of the filter to L1 and L2/N of the HAM. Do not put an X-capacitor across the input of the HAM or use a line filter with an X-capacitor on its output as power factor correction may be impacted. +IN, –IN (HAMD, BAMD) These pins are connected to the output of the external bridge rectifier in HAMD / BAMD configurations Figure 5. GATE IN (HAM) The user should not make any connection to this pin. GATE IN (HAMD) This pin provides line voltage envelope and phase information for power factor correction. This connection must be made through the synchronization diodes between the line filter and bridge rectifier Figure 5. GATE IN (BAMD) The Gate In pin is an interface pin to the Gate Out pin of a HAMD or BAMD depending on configuration. The user should not make any other connection to this pin. GATE OUT The Gate Out pin is a synchronization pin for HAMD/BAMD arrays; the user should not make any other connection to this pin. +OUT and -OUT Connect the +OUT of the HAM to the +IN of the respective Vicor DC-DC converters with the recommended fuse. Connect the -OUT of the HAM to the -IN of the converters. In addition, an external hold-up capacitor of 1,000 µF with a minimum voltage rating of 450 Vdc, is required (across the output of the HAM) for 16 ms ride through time at full power (500 µF for half power, etc). This capacitor must be in close proximity to the HAM. Do not exceed 3,000 µF of total output capacitance. Lower values of capacitance may be used for reduced hold up requirements, but not less than 500 µF. Lower capacitance values may degrade power factor specifications. VI-HAM™, VE-HAM™ Rev 2.3 vicorpower.com Page 5 of 10 4/2013 800 735.6200 VxHAMxM VI-26x or VI-J6x DC-DC Converters C5 10 A F1 +IN F3 JMK Filter V1 GND GATE OUT L1 L1 Input GATE IN Bridge Rectifier Vicor P/N 30660 12.6 A* P/OK E/O A/S D2 R1 C1 C9 C2 D1 D4 L2/N F2 +IN C5–C8 C9,C10 D1 D2, D3 D4, D5 F1, F2 F3 R1 R4** V1 Z1, Z2 Z3 Description 0.1 µF ceramic, 50 V 0.01 µF ceramic, 50 V Hold up capacitor, 1000 to 6,000 µF +IN +OUT GATE IN VI-BAMD-xM Vicor Part Number C4 GATE OUT ** R4 C10 -OUT -IN Booster (N) GATE OUT -IN Available as a HUB from Vicor (see adjoining table) 01000 Film or Ceramic 4,700 pF Y2 cap. 0.2 µF, 500 V 1N4691 zener, 6.2 V 1N4006 diode, 800 V 00670 1N5817 schottky diode, 20 V 26108 Use recommended fusing for specific DC-DC Converters 20 A, 250 V 50 KΩ 100 KΩ, 2 W 275 V MOV 30076 130 V Transorb 1.5KE130CA 150 V Transorb 1.5KE150CA Driver GATE OUT C6 C7 10 A GATE IN Component Designation C1 C2, C3 C4 GATE IN -IN -OUT Z3 1N4006 L2/N VI-HAMD-xM -IN Z1 Z2 1N4006 P/N 1319-13 +IN +OUT C8 * Consult Vicor's Applications Engineering for specific HAMD / BAMD filtering information. ** A 100 KΩ, 2 W resistor is used for every 1,000 µF of hold up capacitance. Hold up Box (HUB) 2000 µF HUB1000-P 1200 W Figure 5 — Connection Diagram, HAMD / BAMD / VI-26x or VI-J6x DC-DC Converters HAMD-CM Driver HAM: No internal bridge rectifier or synchronization diodes. BAMD-CM Booster HAM: Companion module to HAMD-CM used for additional output power. No internal bridge rectifier. PIN FUNCTION / DESCRIPTION (CONT.) A/S The HAM provides a low voltage non isolated output Auxiliary Supply (A/S) that may be used to power primary side control and monitoring circuitry. This output is 19 – 23 Vdc, referenced to -OUT, at 3 mA max. Do not overload or short this output as the HAM will fail. A typical use for A/S is to power an optical coupler that isolates the Power OK signal Figure 6. +OUT P/OK E/O A/S – –OUT IAS ≤ 3 mA 19 – 23 V E/O The Enable Output (E/O) is used to inhibit the DC-DC converters at start up until the hold up capacitors are charged, at which time Enable is asserted high (open state, Figure 8). If the AC line fails, E/O goes low when the DC output of the HAM drops below 195 Vdc. E/O must be connected to the Gate Input of all VI-26x and VI-J6x drivers Figure 4; failure to do so may cause the converters to toggle on and off. It is not necessary to connect this pin to boosters as they are controlled by their respective driver. If an external load is connected directly to the output of the HAM, do not apply the load until the output hold up capacitor(s) are fully charged. + DO NOT OVERLOAD or directly connect a capacitor to the A/S terminal. "Power OK" Status Low = OK +OUT P/OK E/O A/S –OUT Figure 6 — Auxiliary Supply (A/S) The E/O pin ancillary circuitry illustrated in Figures 4 and 5 provides transient immunity. The illustrated circuitry is the minimum required, see Figures 4 and 5. VI-HAM™, VE-HAM™ Rev 2.3 vicorpower.com Page 6 of 10 4/2013 800 735.6200 18 kΩ, 1/4 W VxHAMxM PIN FUNCTION / DESCRIPTION (CONT.) P/OK Power OK is a monitor signal that indicates the status of the AC mains and the DC output voltage of the HAM. P/OK is asserted (active low) when the output bus voltage is within normal operating range 20 – 25 ms after DC-DC converters are enabled by the E/O signal of the HAM. This provides sufficient time for the converters to turn on and their output(s) to stabilize prior to P/OK being asserted, Figure 9. For momentary interruptions of AC power, the HAM will provide at least 16 ms of ride through or hold up time (with 1,000 µF output capacitor). On loss of power or brownout, (when the HAM +OUT D LOGIC P/OK output voltage drops below 230 Vdc) the P/OK signal will go to an open circuit state, see Figure 7, signaling an impending loss of input power to the converter modules. P/OK will provide power fail warning at least 1 ms prior to converter shut down. When the HAM output voltage drops below 195 Vdc the converters are disabled via Enable Output (E/O). AC Mains 120 Vrms E/O G S A/S –OUT DC Output of HAM 240 Vdc Boost Voltage 230 Vdc 195 Vdc Rectified Line Figure 7 — Power OK (P/OK) Off at 195 Vdc Enable Output (E/O) 25 ms +OUT Off at 230 Vdc Power OK (P/OK) P/OK D LOGIC S G E/O A/S Outputs DC-DC Converter(s) 10 ms Off below 195 Vdc –OUT Figure 8 — Enable / Output (E/O) Figure 9 — Start up / shut down timing diagram VI-HAM™, VE-HAM™ Rev 2.3 vicorpower.com Page 7 of 10 4/2013 800 735.6200 VxHAMxM PIN FUNCTION / DESCRIPTION (CONT.) Line Filter for HAM 4-40 INSERT 0.25 DP 4 PL 4.60 ±0.02 2.50 ø0.080 PIN 6 PLACES LOAD 1.200 LINE A line filter is required to provide attenuation of conducted emissions generated by the HAM module and to protect it from line transients. It also presents a well defined high frequency AC line impedance to the input of the HAM. To meet the listed specifications, Vicor’s P/N 30205 line filter/transient suppressor or equivalent must be used, see Figure 10. The addition of a MOV external to this filter is required to meet normal mode transient surge requirements. 2.40±0.02 2.00 0.100 0.060 FACE MAY BE BOWED 0.04 MAX 1.800 0.900 0.30 ±0.02 0.13 ±0.02 0.500 1.00 MAX 0.500 1.45 ±0.02 2.800 CM DM Cy D1 Cy D3 D2 HAM Filter P/N 30205 Cx = 1.5 uF(x2)SH Cy = 0.01 uF, Y2 type LC = 6.9 mH LD = 0.72 mH R = 235 KΩ D1,2 = 1.5KE130CA D3 = 1.5KE150CA *MOV required external to filter to meet normal mode transient surge requirements Figure 10 — Required HAM filter, Vicor part # 30205 For applications using HAMD + BAMD or where the user desires to construct a custom HAM filter, the filter should be designed following Figure 10, the schematic of Vicor’s P/N 30205 filter. The current carrying capability of the inductors must be scaled proportionally to the number of HAM modules used. Inductance values must be selected according to Table 1. These limits are to ensure proper operation of the HAM and do not guarantee a system will meet conducted emissions specifications. Parameter Min Typ Max Unit Differential Mode Inductance (LD) 0.2 0.35 0.75 mH Common Mode Inductance (LC) 3 6 mH Table 1 — HAM filter inductance range For applications requiring magnetic field shielding, do not place a ferrous EMI shield over the plastic cover of the HAM module. This can cause thermal problems due to induction heating effects. RATED CURRENT VS AMBIENT TEMPERATURE 90 N OPERATING TEMP (DEG C) Cx . 80 70 ABOVE TOP OF PLASTIC WASH M 60 50 40 1.0 2.0 3.0 4.0 CURRENT (AMPS) 5.0 6.0 7.0 Figure 12 — HAM filter #30205 current rating vs. temperature 90 80 INSERTION LOSS (db) R LOAD MOV* P/N 30076 LINE Figure 11 — HAM filter #30205 mechanical diagram 70 DM 60 50 40 CM 30 20 10 0 0.01 0.04 0.1 0.4 1 4 10 0.02 0.07 0.2 0.7 2 7 20 FREQUENCY (MEGAHERTZ) 40 70 100 Figure 13 — HAM filter #30205 insertion loss vs. frequency VI-HAM™, VE-HAM™ Rev 2.3 vicorpower.com Page 8 of 10 4/2013 800 735.6200 VxHAMxM PIN FUNCTION / DESCRIPTION (CONT.) Parameter Min Operating voltage Operating temperature (See Fig.12) Typ Max Unit 85 250 Vac –20 40 °C Leakage current at 264 Vac, 63 Hz (Either line to earth) 1.2 mA Operating current 6.3 A 1500 Vac 34 V 60 Hz Dielectric withstand (line – case) Residual voltage after 1 sec. Operating frequency 50 Table 2 — HAM filter part #30205 specifications Agency Approvals UL, CSA, TÜV Safety Notes Each HAM, HAMD or BAMD module must be preceded by a safety agency recognized fast-blow 10A 3AG fuse. The HAM is not isolated from the line – either input or output; a line isolation transformer must be used when making scope measurements. HAMs do not provide input to output isolation. Differential probes should be used when probing the input and output simultaneously to avoid destructive ground loops. Protective Features Over Temperature Shut Down The HAM is designed to shut down when the temperature of the baseplate exceeds 90°C. Do not operate the HAM above its maximum operating temperature of 85°C. Short Circuit Protection The HAM contains output short circuit protection. Operation of this function does not clear the input fuse and the output will resume normal operation after removal of the fault. A short period of time may be required to allow for cooling of an internal temperature sensor. Output Over Voltage Protection The HAM contains output over voltage protection. In the event L1 +IN Vdc, the boost the output voltage exceeds approximately 420 G G will decrease to maintain 420 Vdc on the output. When the L2/N –IN peak of the AC line exceeds 420 V (approximately 293 Vac) the boost will have been reduced to zero and the E/O line will be pulled low shutting down the converters. Beyond this the protection circuit will be enabled and the output voltage will decrease. L1 G (8,9)± L2/N MECHANICAL DRAWING 4.60 (116,8) 0.50 (12,7) 0.30±.015 (7,6)±(0,38) 2.10 (53,3) 0.15 (3,8) 3.60 (91,4) 1.80 (45,7) 0.080 (2,0) Dia. (2) places 4 9 3 2 8 7 6 1 5 HAM Pin # 1 2 3 4 5 6 7 8 9 HAM L1 GATE IN GATE OUT L2/N +OUT P/OK E/O A/S –OUT HAMD +IN GATE IN GATE OUT –IN +OUT P/OK E/O A/S –OUT BAMD +IN GATE IN GATE OUT –IN +OUT N/C N/C A/S –OUT 1.40 1.00 (35,6) 0.70 (25,4) 0.40 (17,8) (10,2) .35±.015 (8,9)±(0,38) 4.20 (106,7) Aluminum Base 0.20 (5,08) MIN 0.29 (7,36) MAX 0.50 (12,7) FULL R 0.15 (3,8) 0.30 (7,6) Min 2.40 (61,0) 1.75 (44,5) Product ID this surface .01 0.040 (1,0) Dia (7) places Figure 14 – HAM / HAMD / BAMD Module Outline +.030 (0,76) -.000 (0) 0.12 (3,0) VI-HAM™, VE-HAM™ Rev 2.3 vicorpower.com Page 9 of 10 4/2013 800 735.6200 VxHAMxM Vicor’s comprehensive line of power solutions includes high density AC-DC and DC-DC modules and accessory components, fully configurable AC-DC and DC-DC power supplies, and complete custom power systems. Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. Vicor makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication. Vicor reserves the right to make changes to any products, specifications, and product descriptions at any time without notice. Information published by Vicor has been checked and is believed to be accurate at the time it was printed; however, Vicor assumes no responsibility for inaccuracies. Testing and other quality controls are used to the extent Vicor deems necessary to support Vicor’s product warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. Specifications are subject to change without notice. Vicor’s Standard Terms and Conditions All sales are subject to Vicor’s Standard Terms and Conditions of Sale, which are available on Vicor’s webpage or upon request. Product Warranty In Vicor’s standard terms and conditions of sale, Vicor warrants that its products are free from non-conformity to its Standard Specifications (the “Express Limited Warranty”). This warranty is extended only to the original Buyer for the period expiring two (2) years after the date of shipment and is not transferable. UNLESS OTHERWISE EXPRESSLY STATED IN A WRITTEN SALES AGREEMENT SIGNED BY A DULY AUTHORIZED VICOR SIGNATORY, VICOR DISCLAIMS ALL REPRESENTATIONS, LIABILITIES, AND WARRANTIES OF ANY KIND (WHETHER ARISING BY IMPLICATION OR BY OPERATION OF LAW) WITH RESPECT TO THE PRODUCTS, INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR REPRESENTATIONS AS TO MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, INFRINGEMENT OF ANY PATENT, COPYRIGHT, OR OTHER INTELLECTUAL PROPERTY RIGHT, OR ANY OTHER MATTER. This warranty does not extend to products subjected to misuse, accident, or improper application, maintenance, or storage. Vicor shall not be liable for collateral or consequential damage. Vicor disclaims any and all liability arising out of the application or use of any product or circuit and assumes no liability for applications assistance or buyer product design. Buyers are responsible for their products and applications using Vicor products and components. Prior to using or distributing any products that include Vicor components, buyers should provide adequate design, testing and operating safeguards. Vicor will repair or replace defective products in accordance with its own best judgment. For service under this warranty, the buyer must contact Vicor to obtain a Return Material Authorization (RMA) number and shipping instructions. Products returned without prior authorization will be returned to the buyer. The buyer will pay all charges incurred in returning the product to the factory. Vicor will pay all reshipment charges if the product was defective within the terms of this warranty. Life Support Policy VICOR’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF VICOR CORPORATION. As used herein, life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. Per Vicor Terms and Conditions of Sale, the user of Vicor products and components in life support applications assumes all risks of such use and indemnifies Vicor against all liability and damages. Intellectual Property Notice Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent applications) relating to the products described in this data sheet. No license, whether express, implied, or arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Interested parties should contact Vicor's Intellectual Property Department. Vicor Corporation 25 Frontage Road Andover, MA, USA 01810 Tel: 800-735-6200 Fax: 978-475-6715 email Customer Service: [email protected] Technical Support: [email protected] VI-HAM™, VE-HAM™ Rev 2.3 vicorpower.com Page 10 of 10 4/2013 800 735.6200