OKR-T/20-W12-C www.murata-ps.com Adjustable Output 20-Amp SIP-mount DC-DC Converters Typical unit FEATURES PRODUCT OVERVIEW 670 KHz operation The OKR-T/20-W12-C is a miniature SIP non-isolated Point-of-Load (PoL) DC/DC power converter measuring only 1.45 x 0.44 x 0.61 inches (36.8 x 11.2 x 15.5 mm). The wide input range is 6.0 to 13.8 Volts DC. Based on 670 KHz synchronous buck topology, the high power conversion efficient Point of Load (PoL) module features programmable output voltage and On/Off control, under voltage lock out (UVLO), overcurrent and over temperature protections. These units meet all standard UL/EN/ IEC 60950-1 safety certifications and RoHS-6 hazardous substance compliance. 6.0-13.8 Vdc input voltage range Programmable output voltage from 0.591-5.0 VDC High power conversion efficiency at 94% Outstanding thermal derating performance Over temperature and over current protection On/Off control SIP, 1.45 x 0.44 x 0.61 inches (36.8 x 11.2 x 15.5 mm) Certified to UL/EN/IEC 60950-1 safety standards, 2nd edition RoHS-6 hazardous substance compliance Power Good Figure 1. Connection Diagram +Vin F1 On/Off Control +Vout t4XJUDIJOH Controller t'JMUFST t$VSSFOU4FOTF External DC Power Source Trim Open = On Closed = Off (Positive On/Off) Common Reference and Error Amplifier Common For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 1 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Root Model Input R/N (mVp-p) Regulation (Max.) IOUT VOUT (Amps Power VIN Nom. Range (Volts) max) (Watts) (Volts) (Volts) Max. Line Load OKR-T/20-W12-C 0.591-5 20 100 25 ±0.3% ±0.5% ➀ Dimensions are in inches (mm). ➁ Ripple and Noise is shown at Vout=1.8V. See specs for details. ➂ All specifications are at nominal line voltage, Vout= 5V and full load, +25 deg.C. 12 6.0-13.8 Package IIN, IIN, no load full load (mA) (Amps) 100 8.9 Efficiency Min. Typ. 92% 94% Dimensions: inches (mm) LxWxH 1.45 x 0.44 x 0.61 (36.8 x 11.2 x 15.5) unless otherwise noted. Output capacitors are 3 22μF and 2 47μF ceramic. Input cap is 22 μF. See detailed specifications. I/O caps are necessary for our test equipment and may not be needed for your application. Vin must be 2V or higher than Vout for 3.3 to 5V outputs. PART NUMBER STRUCTURE OK R - T / 20 - W12 - C Okami Non-isolated PoL SIP-Mount Output Voltage Range T = Trimmable, 0.591-5 Volts RoHS Hazardous Substance Compliance C = RoHS-6 (does not claim EU RoHS exemption 7b–lead in solder) Wide Input Voltage Range W12 = 6.0-13.8 Volts Maximum Rated Output Current in Amps www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 2 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters FUNCTIONAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS Input Voltage, Continuous Output Power Output Current Conditions Minimum Typical/Nominal Maximum Units Full power operation 6.0 12 13.8 102 Vdc W Current-limited, no damage, short-circuit protected 0 20 A On/Off Control Vin Vdc Power Good Pin 7 Vdc Storage Temperature Range Vin = Zero (no power) -40 125 °C Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied or recommended. INPUT Operating voltage range Recommended External Fuse Turn On/Start-up threshold Undervoltage Shutdown Internal Filter Type Input current Full Load Conditions Low Line Inrush Transient Short Circuit Input Current No Load Input Current Shut-Down Mode Input Current Reflected (back) ripple current Fast blow Rising input voltage 6.0 12 5.2 4.2 5.4 4.4 13.8 40 5.6 4.6 Vdc A Vdc Vdc C-Type Vin = nominal (5Vset) Vin @ min, 5Vset Vout = 5V Measured at input with specified filter Cin = 100μF, Cbus = 1000μF, Lbus = 1μH 8.8 15 1 NA 100 NA A A A2-Sec. mA mA mA 10 mA, pk-pk 94.2 % GENERAL and SAFETY Efficiency Safety Calculated MTBF Calculated MTBF 12Vin, 5Vout, 20A Certified to UL-60950-1, CSA-C22.2 No.60950-1, IEC/60950-1, 2nd edition Per Telcordia SR332, issue 1 class 3, ground fixed, Tambient = +25˚C Per Mil-HDBK-217N2 Method 92 Yes 8,724,722 Hours 10,772,399 Hours DYNAMIC CHARACTERISTICS Fixed Switching Frequency Startup Time Dynamic Load Response 670 4 (Iout 50% - 75% nom, within 2% of Vout set, di/dt = 1A/μSec) Dynamic Load Peak Deviation 10 KHz mS 75 μSec 150 mV 5 1.3 0.7 6 V mA V μA mV FEATURES and OPTIONS Remote On/Off Control Positive Logic, ON state Control Current, ON state Positive Logic, OFF state Control Current, OFF state Remote Sense Power Good Option PGOOD, Open Drain Configuration, Sinking: Vout window for PGOOD: Upper limit Vout window for PGOOD: Lower limit Pin pulled high Pin open or pulled low open collector/drain 1.2 0.04 0 0 +8.3 -15 +12.5 -12.5 +16.2 -9.2 % % 0 100 102 W 5 5 Vdc % of Vnom. % Vo set 20 31 A A OUTPUT Total Output Power Voltage Nominal Output Voltage Range Setting Accuracy Output Voltage Overshoot-Startup Current Output Current Range Current Limit Inception See trim formula At 50% load Continuous 98% of Vnom., after warmup 0.591 ±1.5 0 22 26 www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 3 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters FUNCTIONAL SPECIFICATIONS (CONT.) OUTPUT (CONT.) Conditions Minimum Typical/Nominal Maximum Units Short Circuit Hiccup technique, autorecovery within ±1% of Vout Short Circuit Current Short Circuit Duration (remove short for recovery) Regulation Total Regulation Band Line Regulation Load Regulation Ripple and Noise Temperature Coefficient Maximum Capacitive Loading 1 A Output shorted to ground, no damage -3 Vin = min to max, output @ nominal load Min load to max load 1.8Vo, 12Vin 3 ±0.3 ±0.5 25 15 0.02 1000 5000 Low ESR; > 1 mohm ESR > 15 mohm % Vo set % % mV pk-pk % of Vnom./°C μF μF MECHANICAL Outline Dimensions LxWxH 1.45 x 0.44 x 0.61 36.8 x 11.2 x 15.5 0.29 8.2 Weight Inches mm Ounces Grams ENVIRONMENTAL Operating Ambient Temperature Range Storage Temperature RoHS rating full power, all output voltages, see derating curves Vin = Zero (no power) 0 70 °C -40 125 °C RoHS-6 Trim Connections Output Voltage Adustment The output voltage may be adjusted over a limited range by connecting an external trim resistor (Rtrim) between the Trim pin and Ground. The Rtrim resistor must be a 1/10 Watt precision metal film type, ±0.5% accuracy or better with low temperature coefficient, ±100 ppm/oC. or better. Mount the resistor close to the converter with very short leads or use a surface mount trim resistor. In the tables below, the calculated resistance is given. Do not exceed the specified limits of the output voltage or the converter’s maximum power rating when applying these resistors. Also, avoid high noise at the Trim input. However, to prevent instability, you should never connect any capacitors to Trim. +VOUT RTRIM Trim RLOAD Ground RTRIM (kΩ) = 1.182 VOUT − 0.591 OKR-T/20-W12-C Resistor Trim Equation, OKR-T/20-W12-C models: Output Voltage Calculated Rtrim (Ω) 5 V. 268 3.3 V. 436 2.5 V. 619 1.8 V. 978 1.5 V. 1300 1.2 V. 1940 1.0 V. 2890 0.591 V. ∞ (open) 1.182 RTRIM (k) = _____________ (VOUT – 0.591) www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 4 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters PERFORMANCE DATA Maximum Current Temperature Derating at Sea Level (Vout = 2.5V; Vin = 12V, airflow is from pin 8 to pin 1) 21 21 20 20 19 19 18 18 17 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 16 15 14 17 Output Current (Amps) Output Current (Amps) Maximum Current Temperature Derating at Sea Level (Vout = 1.0V; Vin = 12V, airflow is from pin 8 to pin 1) 13 12 16 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 15 14 13 12 11 11 10 10 9 9 8 8 30 35 40 45 50 55 60 65 70 75 80 85 30 35 40 45 50 Ambient Temperature (°C) 55 60 65 70 75 80 85 Ambient Temperature (°C) Maximum Current Temperature Derating at Sea Level (Vout = 5.0V; Vin = 12V, airflow is from pin 8 to pin 1) Efficiency vs. Line Voltage and Load Current @ +25°C 100 21 95 20 19 90 17 Efficiency (%) Output Current (Amps) 18 16 15 14 0.5 m/s (100 LFM) 1.0 m/s (200 LFM) 1.5 m/s (300 LFM) 2.0 m/s (400 LFM) 13 12 11 85 80 Vout=5v Vout=3.3v Vout=2.5v Vout=1.8v Vout=1v 75 70 10 65 9 8 30 35 40 45 50 55 60 65 70 75 80 85 60 Ambient Temperature (°C) 0 2 4 6 8 10 12 14 16 18 20 Load Current (Amps) Thermal Reference Point www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 5 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters PERFORMANCE DATA On/Off Enable Startup (Vout=1V, Vin=12 V, Iload=0A) Step Load Transient Response (Vin=12V, Vout=1.0V, Iload=0-10A,10A/us) Iload 0-50-0% 130μF Step Load Transient Response (Vin=12V, Vout=1.0V, Iload=0-10A,10A/us) Iload 0-50-0% 130μF Step Load Transient Response (Vin=12V, Vout=1.0V, Iload=0-10A,10A/us) Iload 50-100-50% 130μF Step Load Transient Response (Vin=12V, Vout=1.0V, Iload=0-10A,10A/us) Iload 50-100-50% 130μF www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 6 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters PERFORMANCE DATA Step Load Transient Response (Vin=12V, Vout=1.0V, Iload=0-10A,10A/us) Iload 0-50-0% 900μF Step Load Transient Response (Vin=12V, Vout=1.0V, Iload=0-10A,10A/us) Iload 0-50-0% 900μF Step Load Transient Response (Vin=12V, Vout=1.0V, Iload=0-10A,10A/us) Iload 50-100-50% 900μF Step Load Transient Response (Vin=12V, Vout=1.0V, Iload=0-10A,10A/us) Iload 50-100-50% 900μF www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 7 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters TECHNICAL NOTES Input Fusing Certain applications and/or safety agencies may require fuses at the inputs of power conversion components. Fuses should also be used when there is the possibility of sustained input voltage reversal which is not current-limited. For greatest safely, we recommend a fast blow fuse installed in the ungrounded input supply line. The installer must observe all relevant safety standards and regulations. For safety agency approvals, install the converter in compliance with the end-user safety standard, i.e. IEC/EN/UL 60950-1. Input Under-Voltage Shutdown and Start-Up Threshold Under normal start-up conditions, converters will not begin to regulate properly until the ramping-up input voltage exceeds and remains at the Start-Up Threshold Voltage (see Specifications). Once operating, converters will not turn off until the input voltage drops below the Under-Voltage Shutdown Limit. Subsequent restart will not occur until the input voltage rises again above the Start-Up Threshold. This built-in hysteresis prevents any unstable on/off operation at a single input voltage. Users should be aware however of input sources near the Under-Voltage Shutdown whose voltage decays as input current is consumed (such as capacitor inputs), the converter shuts off and then restarts as the external capacitor recharges. Such situations could oscillate. To prevent this, make sure the operating input voltage is well above the UV Shutdown voltage AT ALL TIMES. suggested capacitor values are 10 to 22 μF, rated at twice the expected maximum input voltage. Make sure that the input terminals do not go below the undervoltage shutdown voltage at all times. More input bulk capacitance may be added in parallel (either electrolytic or tantalum) if needed. Recommended Output Filtering The minimum external output capacitance required for proper operation is 3 22μF and 2 47μF ceramic type. The maximum external output capacitance is 1500μF. Operating outside of these minimum and maximum limits may affect the performance of the unit. Input Ripple Current and Output Noise All models in this converter series are tested and specified for input reflected ripple current and output noise using designated external input/output components, circuits and layout as shown in the figures below. In the figure below, the Cbus and Lbus components simulate a typical DC voltage bus. Please note that the values of Cin, Lbus and Cbus will vary according to the specific converter model. TO OSCILLOSCOPE CURRENT PROBE +VIN VIN LBUS + – + – CBUS CIN -VIN Start-Up Time Assuming that the output current is set at the rated maximum, the Vin to Vout Start-Up Time (see Specifications) is the time interval between the point when the ramping input voltage crosses the Start-Up Threshold and the fully loaded regulated output voltage enters and remains within its specified accuracy band. Actual measured times will vary with input source impedance, external input capacitance, input voltage slew rate and final value of the input voltage as it appears at the converter. These converters include a soft start circuit to moderate the duty cycle of its PWM controller at power up, thereby limiting the input inrush current. The On/Off Remote Control interval from On command to Vout regulated assumes that the converter already has its input voltage stabilized above the Start-Up Threshold before the On command. The interval is measured from the On command until the output enters and remains within its specified accuracy band. The specification assumes that the output is fully loaded at maximum rated current. Similar conditions apply to the On to Vout regulated specification such as external load capacitance and soft start circuitry. Recommended Input Filtering The user must assure that the input source has low AC impedance to provide dynamic stability and that the input supply has little or no inductive content, including long distributed wiring to a remote power supply. The converter will operate with no additional external capacitance if these conditions are met. For best performance, we recommend installing a low-ESR capacitor immediately adjacent to the converter’s input terminals. The capacitor should be a ceramic type such as the Murata GRM32 series or a polymer type. Initial CIN = 2 x 100μF, ESR < 700mΩ @ 100kHz CBUS = 1000μF, ESR < 100mΩ @ 100kHz LBUS = 1μH Figure 3. Measuring Input Ripple Current +VOUT C1 C2 SCOPE RLOAD -VOUT C1 = 0.1μF C2 = 50μF LOAD 2-3 INCHES (51-76mm) FROM MODULE Figure 4. Measuring Output Ripple and Noise (PARD) Minimum Output Loading Requirements All models regulate within specification and are stable under no load to full load conditions. Operation under no load might however slightly increase output ripple and noise. www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 8 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters Thermal Shutdown To prevent many over temperature problems and damage, these converters include thermal shutdown circuitry. If environmental conditions cause the temperature of the DC/DC’s to rise above the Operating Temperature Range up to the shutdown temperature, an on-board electronic temperature sensor will power down the unit. When the temperature decreases below the turn-on threshold, the converter will automatically restart. There is a small amount of hysteresis to prevent rapid on/off cycling. The temperature sensor is typically located adjacent to the switching controller, approximately in the center of the unit. See the Performance and Functional Specifications. CAUTION: If you operate too close to the thermal limits, the converter may shut down suddenly without warning. Be sure to thoroughly test your application to avoid unplanned thermal shutdown. Temperature Derating Curves The graphs in this data sheet illustrate typical operation under a variety of conditions. The Derating curves show the maximum continuous ambient air temperature and decreasing maximum output current which is acceptable under increasing forced airflow measured in Linear Feet per Minute (“LFM”). Note that these are AVERAGE measurements. The converter will accept brief increases in current or reduced airflow as long as the average is not exceeded. Note that the temperatures are of the ambient airflow, not the converter itself which is obviously running at higher temperature than the outside air. Also note that very low flow rates (below about 25 LFM) are similar to “natural convection,” that is, not using fan-forced airflow. Murata Power Solutions makes Characterization measurements in a closed cycle wind tunnel with calibrated airflow. We use both thermocouples and an infrared camera system to observe thermal performance. CAUTION: If you routinely or accidentally exceed these Derating guidelines, the converter may have an unplanned Over Temperature shut down. Also, these graphs are all collected at slightly above Sea Level altitude. Be sure to reduce the derating for higher density altitude. Output Current Limiting Current limiting inception is defined as the point at which full power falls below the rated tolerance. See the Performance/Functional Specifications. Note particularly that the output current may briefly rise above its rated value in normal operation as long as the average output power is not exceeded. This enhances reliability and continued operation of your application. If the output current is too high, the converter will enter the short circuit condition. Output Short Circuit Condition When a converter is in current-limit mode, the output voltage will drop as the output current demand increases. If the output voltage drops too low (approximately 98% of nominal output voltage for most models), the magnetically coupled voltage used to develop primary side voltages will also drop, thereby shutting down the PWM controller. Following a time-out period, the PWM will restart, causing the output voltage to begin ramping up to its appropriate value. If the short-circuit condition persists, another shutdown cycle will initiate. This rapid on/off cycling is called “hiccup mode”. The hiccup cycling reduces the average output current, thereby preventing excessive internal temperatures and/or component damage. A short circuit can be tolerated indefinitely. The “hiccup” system differs from older latching short circuit systems because you do not have to power down the converter to make it restart. The system will automatically restore operation as soon as the short circuit condition is removed. External Enable On/Off Control (see figure 5) The forced On/Off enable option uses positive logic for the external control. The converter may be powered ON by applying a positive voltage (logic HI) between the On/Off pin and the negative power input (-Vin). This positive voltage is referred to –Vin and must be in the range of at least +2.0V and not to exceed the power supply input voltage (+Vin). The current drain is 12 mA max. when turned on. If the On/Off pin is left open, an internal 100 Kilohm pulldown resistor will turn the converter OFF. The OFF condition may also be commanded by grounding the pin or from an external logic LO voltage not to exceed +0.4 Volts. All voltages are referred to the –Vin negative power input. If you wish to control the On/Off circuit by external logic rather than a switch, carefully compare your logic threshold voltages with that of the On/Off input. The circuit below indicates the equivalent input. Please avoid false signals from ground bounce errors on the On/Off control. Vin Figure 5. On/Off Control Circuit www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 9 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters MECHANICAL SPECIFICATIONS TOP VIEW [11.2] 0.44 REF END VIEW FRONT VIEW [11.18] 0.44 [36.8] 1.45 [1.27] 0.050 [6.93] 0.27 [15.5] 0.61 8 7 6 5 4 3 10 [3.30] 0.130 REF 1 9 2x [1.27] 0.050 [2.54] 0.100 [4.45] 0.175 2 [2.79] 0.110 [12.70] 0.500 [26.67] 1.050 [34.29] 1.350 [3.30] 0.130 [3.18] 0.125 REF 2x [1.35] 0.053 8x [0.76] 0.030 [5.7] 0.22 [2.06] 0.081 MATERIAL: 0.030 HEADER PINS: COPPER ALLOY SUPPORT PINS: TIN PLATED BRASS FINISH: (ALL HEADER PINS) 200μ" MIN MATTE TIN OVER NICKEL (40μ" MIN) ISOMETRIC VIEW INPUT/OUTPUT CONNECTIONS OKR-T/20-W12-C Pin J1-1 J1-2 J1-3 J1-4 J1-5 J1-6 J1-7 J1-8 J1-9 J1-10 Function +VOUT Output Trim PGND PGOOD Enable +VIN (+) Remote Sense (-) Remote Sense Mechanical Support Mechanical Support Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 10 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters MECHANICAL SPECIFICATIONS RECOMMENDED FOOTPRINT (VIEW FROM TOP) 1.47 (37.3) 2x .078±.003 8x .035±.003 10 0.47 (12.0) 0.295 (7.49) REF 8 7 9 6 5 4 3 2 0.081 (2.06) 1 0.245 (6.22) 5x 0.100 (2.54) 0.500 (12.70) 0.175 (4.45) 0.060 (1.52) 0.950 (24.13) 1.350 (34.29) Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 11 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters STANDARD PACKAGING FOAM PADS EACH STATIC DISSIPATIVE POLYETHYLENE FOAM TRAY ACCOMMODATES 35 CONVERTERS IN A 5 X 7 ARRAY 108.0±6.4 4.25±0.25 CLOSED HEIGHT CORRUGATED CARTON 279.4±6.4 11.00±0.25 266.7±6.4 10.50±0.25 STANDARD PACKAGING 35 UNITS PER TRAY 3 TRAYS PER CARTON MPQ=105 UNITS Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 12 of 13 OKR-T/20-W12-C Adjustable Output 20-Amp SIP-mount DC-DC Converters Soldering Guidelines Murata Power Solutions recommends the specifications below when installing these converters. These specifications vary depending on the solder type. Exceeding these specifications may cause damage to the product. Your production environment may differ; therefore please thoroughly review these guidelines with your process engineers. Wave Solder Operations for through-hole mounted products (THMT) For Sn/Ag/Cu based solders: For Sn/Pb based solders: Maximum Preheat Temperature 115° C. Maximum Preheat Temperature Maximum Pot Temperature 270° C. Maximum Pot Temperature 250° C. Maximum Solder Dwell Time 7 seconds Maximum Solder Dwell Time 6 seconds Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED 105° C. This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2016 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_OKR-T/20-W12-C.A04 Page 13 of 13