LC6.5 – LC170A Available 1500 Watt Low Capacitance Transient Voltage Suppressor Screening in reference to MIL-PRF-19500 available DESCRIPTION This hermetically sealed Transient Voltage Suppressor (TVS) product family includes a rectifier diode element in series and in the opposite direction. This allows it to present a very low (< 100 pF) capacitance to the system it is protecting (see Figure 2). The low capacitance of these devices makes them particularly useful for protecting lines carrying high frequency signals. They are also useful in protecting from the secondary effects of lightning in airborne avionics per IEC61000-4-5, RTCA/DO-160G, and ARINC 429. If bidirectional transient capability is required, two of these low capacitance TVS devices may be used in parallel in opposite directions (anti-parallel) for complete ac protection as shown in Figure 4. Important: For the latest information, visit our website http://www.microsemi.com. FEATURES • • • • • • • • • Unidirectional low-capacitance TVS series for flexible thru-hole mounting. For bidirectional applications, use two in anti-parallel (see Figure 4). Suppresses transients up to 1500 watts @ 10/1000 µs (see Figure 1). Clamps transients in less than 100 pico seconds (theoretical for unidirectional).* Working voltage (V WM ) range 6.5 V to 170 V. 5% and 10% tolerance versions available. Hermetic sealed DO-13 metal package. Screening options available in reference to MIL-PRF-19500. (See Part Nomenclature for all available options.) RoHS compliant versions available. *measurement limitation APPLICATIONS / BENEFITS • • • • • • • • Protection from switching transients and induced RFI. Low capacitance for data line protection up to 1 MHz. Protection for fast data rate lines in aircraft up to: RTCA/DO-160G Level 5 Waveform 4 and Level 2 Waveform 5A (also see MicroNote 130) ARINC 429, Part 1, paragraph 2.4.1.1 up to bit rates of 100 kb/s ESD & EFT protection per IEC 61000-4-2 and -4-4. Secondary lightning protection per IEC61000-4-5 with 42 ohms source impedance: Class 1: LC6.5 to LC170A Class 2: LC6.5 to LC150A Class 3: LC6.5 to LC70A Class 4: LC6.5 to LC36A Secondary lightning protection per IEC61000-4-5 with 12 ohms source impedance: Class 1 : LC6.5 to LC90A Class 2: LC6.5 to LC45A Class 3: LC6.5 to LC22A Class 4: LC6.5 to LC11A Secondary lightning protection per IEC61000-4-5 with 2 ohms source impedance: Class 2: LC6.5 to LC20A Class 3: LC6.5 to LC10A Inherently radiation hard as described in Microsemi MicroNote 050. T4-LDS-0293, Rev. 1 (5/6/13) ©2013 Microsemi Corporation DO-202AA (DO-13) Package Also available in: Case 1 package (plastic equivalent) LCE6.5 – LCE170A DO-215AB package (Gull wing surface mount) SMCGLCE6.5 – SMCGLCE170A DO-214AB package (J-bend surface mount) SMCJLCE6.5 – SMCJLCE170A MSC – Lawrence 6 Lake Street, Lawrence, MA 01841 Tel: 1-800-446-1158 or (978) 620-2600 Fax: (978) 689-0803 MSC – Ireland Gort Road Business Park, Ennis, Co. Clare, Ireland Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298 Website: www.microsemi.com Page 1 of 6 LC6.5 – LC170A MAXIMUM RATINGS Parameters/Test Conditions Junction and Storage Temperature Thermal Resistance, Junction to Lead @ 0.375 inch (10 mm) from body (1) Thermal Resistance, Junction to Ambient (2) Peak Pulse Power @ T L = +25 ºC (3) Power Dissipation @ T L ≤ +125 ºC Solder Temperature @ 10 s Symbol Value Unit T J and T STG R ӨJL -65 to +175 50 ºC ºC/W R ӨJA P PP PD T SP 110 1500 1 260 ºC/W W W o C Notes: 1. When mounted on FR4 PC board with 4 mm2 copper pads (1 oz) and track width 1 mm, length 25 mm. 2. At 10/1000 µs with repetition rate of 0.01% or less (see Figure 1). 3. At 3/8 inch (10 mm) from body. TVS devices are not typically used for dc power dissipation and are instead operated at or less than their rated standoff voltage (V WM ) except for transients that briefly drive the device into avalanche breakdown (V BR to V C region). Also see Figures 2, 3 and 4 for further protection details in rated peak pulse power for unidirectional and bidirectional configurations respectively. MECHANICAL and PACKAGING • • • • • • • CASE: Welded, hermetically sealed metal and glass. TERMINALS: Tin-lead plated or RoHS compliant annealed matte-tin plating. Solderable per MIL-STD-750 method 2026. MARKING: Part number and polarity diode symbol. POLARITY: Cathode connected to case and polarity indicated by diode symbol. TAPE & REEL option: Standard per EIA-296 (add “TR” suffix to part number). Consult factory for quantities. WEIGHT: Approximately 1.4 grams. See Package Dimensions on last page. PART NOMENCLATURE MQ LC 6.5 A (e3) Reliability Level MQ (reference JAN) MX (reference JANTX) MV (reference JANTXV) MSP (reference JANS) Blank = Commercial RoHS Compliance e3 = RoHS compliant Blank = non-RoHS compliant Tolerance Level A = +/- 5 % blank = +/- 10 % Low Capacitance Reverse Standoff Voltage (V WM ) (See Electrical Characteristics table) SYMBOLS & DEFINITIONS Definition Symbol I (BR) V (BR) Breakdown Current: The current used for measuring breakdown voltage V (BR) . o Breakdown Voltage: This is the breakdown voltage the device will exhibit at 25 C. V WM Rated Working Standoff Voltage: The maximum peak voltage that can be applied over the operating temperature range. Maximum Clamping Voltage: The maximum peak voltage appearing across the TVS when subjected to the peak pulse current in a one millisecond time interval. The peak pulse voltage is the combination of voltage rise due to both the series resistance and thermal rise and positive temperature coefficient (α V(BR) ). Peak Impulse Current: The peak current during the impulse. Peak Pulse Power: The pulse power as determined by the product of V C and I PP . VC I PP P PP ID Standby Current: The current at the standoff voltage V WM . T4-LDS-0293, Rev. 1 (5/6/13) ©2013 Microsemi Corporation Page 2 of 6 LC6.5 – LC170A o ELECTRICAL CHARACTERISTICS @ 25 C PART NUMBER LC6.5 LC6.5A LC7.0 LC7.0A LC7.5 LC7.5A LC8.0 LC8.0A LC8.5 LC8.5A LC9.0 LC9.0A LC10 LC10A LC11 LC11A LC12 LC12A LC13 LC13A LC14 LC14A LC15 LC15A LC16 LC16A LC17 LC17A LC18 LC18A LC20 LC20A LC22 LC22A LC24 LC24A LC26 LC26A LC28 LC28A LC30 LC30A LC33 LC33A LC36 LC36A LC40 LC40A LC43 LC43A LC45 LC45A LC48 LC48A LC51 LC51A RATED WORKING STANDOFF VOLTAGE BREAKDOWN VOLTAGE V WM MAXIMUM STANDBY CURRENT MAXIMUM CLAMPING VOLTAGE V C @ I PP MAXIMUM PEAK IMPULSE CURRENT V (BR) @ I PP @ Volts I (BR) Volts 10/1000 µs Amps MAXIMUM CAPACITANCE C@0 Volts, f = 1 MHz pF I D @V WM 100 100 100 100 100 100 100 100 94 100 89 97 80 88 74 82 68 75 63 70 58 65 56 61 52 57 49 54 46 51 42 46 38 42 35 39 32 36 30 33 28 31 25.4 28.1 23.3 25.8 21.0 23.3 19.5 21.6 18.7 20.6 17.5 19.4 16.5 18.2 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 Volts MIN MAX mA µA 6.5 6.5 7.0 7.0 7.5 7.5 8.0 8.0 8.5 8.5 9.0 9.0 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 20 20 22 22 24 24 26 26 28 28 30 30 33 33 36 36 40 40 43 43 45 45 48 48 51 51 7.22 7.22 7.78 7.78 8.33 8.33 8.89 8.89 9.44 9.44 10.0 10.0 11.1 11.1 12.2 12.2 13.3 13.3 14.4 14.4 15.6 15.6 16.7 16.7 17.8 17.8 18.9 18.9 20.0 20.0 22.2 22.2 24.4 24.4 26.7 26.7 28.9 28.9 31.1 31.1 33.3 33.3 36.7 36.7 40.0 40.0 44.4 44.4 47.8 47.8 50.0 50.0 53.3 53.3 56.7 56.7 8.82 7.98 9.51 8.60 10.2 9.21 10.9 9.83 11.5 10.4 12.2 11.1 13.6 12.3 14.9 13.5 16.3 14.7 17.6 15.9 19.1 17.2 20.4 18.5 21.8 19.7 23.1 20.9 24.4 22.1 27.1 24.5 29.8 26.9 32.6 29.5 35.3 31.9 38.0 34.4 40.7 36.8 44.9 40.6 48.9 44.2 54.3 49.1 58.4 52.8 61.1 55.3 65.1 58.9 69.3 62.7 10 10 10 10 10 10 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1000 1000 500 500 250 250 100 100 50 50 10 10 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 12.3 11.2 13.3 12.0 14.3 12.9 15.0 13.6 15.9 14.4 16.9 15.4 18.8 17.0 20.1 18.2 22.0 19.9 23.8 21.5 25.8 23.2 26.9 24.4 28.8 26.0 30.5 27.6 32.2 29.2 35.8 32.4 39.4 35.5 43.0 38.9 46.6 42.1 50.1 45.4 53.5 48.4 58.0 53.3 64.3 58.1 71.4 64.5 76.7 69.4 80.3 72.7 85.5 77.4 91.1 82.4 WORKING INVERSE BLOCKING VOLTAGE INVERSE BLOCKING LEAKAGE CURRENT V WIB I IB @ V WIB PEAK INVERSE BLOCKING VOLTAGE VOLTS Volts µA Volts 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 150 150 150 150 150 150 150 150 V PIB 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 200 200 200 200 200 200 200 200 continued T4-LDS-0293, Rev. 1 (5/6/13) ©2013 Microsemi Corporation Page 3 of 6 LC6.5 – LC170A o ELECTRICAL CHARACTERISTICS @ 25 C (continued) PART NUMBER LC54 LC54A LC58 LC58A LC60 LC60A LC64 LC64A LC70 LC70A LC75 LC75A LC80 LC80A LC90 LC90A LC100 LC100A LC110 LC110A LC120 LC120A LC130 LC130A LC150 LC150A LC160 LC160A LC170 LC170A RATED WORKING STANDOFF VOLTAGE BREAKDOWN VOLTAGE V WM V (BR) V C @ I PP MAXIMUM PEAK IMPULSE CURRENT @ Volts I PP @ I (BR) Volts 10/1000 µs Amps MAXIMUM CAPACITANCE C@0 Volts, f = 1 MHz pF 15.6 17.2 14.6 16.0 14.0 15.5 13.2 14.6 12.0 13.3 11.2 12.4 10.6 11.6 9.4 10.3 8.4 9.3 7.7 8.4 7.0 7.8 6.5 7.2 5.6 6.2 5.2 5.8 4.9 5.4 100 100 100 100 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 Volts MIN MAX 54 54 58 58 60 60 64 64 70 70 75 75 80 80 90 90 100 100 110 110 120 120 130 130 150 150 160 160 170 170 60.0 60.0 64.4 64.4 66.7 66.7 71.1 71.1 77.8 77.8 83.3 83.3 88.7 88.7 100 100 111 111 122 122 133 133 144 144 167 167 178 178 189 189 73.3 66.3 78.7 71.2 81.5 73.7 86.9 78.6 95.1 86.0 102.0 92.1 108 98.0 122 111 136 123 149 135 163 147 176 159 204 185 218 197 231 209 MAXIMUM STANDBY CURRENT MAXIMUM CLAMPING VOLTAGE I D @V WM mA µA 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 96.3 87.1 103.0 93.6 107.0 96.8 114.0 103.0 125 113 134 121 142 129 160 146 179 162 196 178 214 193 231 209 268 243 287 259 304 275 WORKING INVERSE BLOCKING VOLTAGE 150 150 150 150 150 150 150 150 150 150 150 150 150 150 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 V WIB INVERSE PEAK BLOCKING INVERSE LEAKAGE BLOCKING CURRENT VOLTAGE VOLTS I IB @ V WIB V PIB Volts µA 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 Volts 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 400 400 400 400 400 400 400 400 400 400 400 400 NOTE 1: TVS devices are normally selected according to the reverse standoff voltage (V WM ) which should be equal to or greater than the DC or peak operating voltage level. T4-LDS-0293, Rev. 1 (5/6/13) ©2013 Microsemi Corporation Page 4 of 6 LC6.5 – LC170A PPP - Peak Pulse Power - kW GRAPHS Pulse Time (tw) in µs FIGURE 1 Peak Pulse Power vs Pulse Time (tw) in µs T4-LDS-0293, Rev. 1 (5/6/13) ©2013 Microsemi Corporation Page 5 of 6 LC6.5 – LC170A PACKAGE DIMENSIONS NOTES: Dimensions are in inches. Millimeter equivalents are given for information only. The major diameter is essentially constant along its length. Dimension to allow for pinch or seal deformation anywhere along tubulation. 5 Symbol for bidirectional transient suppressor. 6 Lead 1 is electrically connected to the case. 7 In accordance with ASME Y14.5M, diameters are equivalent to Φx symbology. 1 2 3 4 Symbol BD BL CD CL LD LL Dimensions Inches Millimeters Min Max Min Max 0.215 0.235 5.46 5.97 0.315 0.350 8.00 8.90 0.045 0.100 1.14 2.54 0.210 5.33 0.026 0.035 0.660 0.889 1.000 1.625 25.40 41.28 Notes 3 4 APPLICATIONS SCHEMATIC The TVS low capacitance device configuration is shown in figure 2. As a further option for unidirectional applications, an additional low capacitance rectifier diode may be used in parallel in the same polarity direction as the TVS as shown in figure 3. In applications where random high voltage transients occur, this will prevent reverse transients from damaging the internal low capacitance rectifier diode and also provide a low voltage conducting direction. The added rectifier diode should be of similar low capacitance and also have a higher reverse voltage rating than the TVS clamping voltage V C . The Microsemi recommended rectifier part number is the “LCR80” for the application in figure 3. If using two (2) low capacitance TVS devices in anti-parallel for bidirectional applications, this added protective feature for both directions (including the reverse of each rectifier diode) is also provided. The unidirectional and bidirectional configurations in figure 3 and 4 will both result in twice the capacitance of figure 2. FIGURE 2 TVS with internal Low Capacitance Diode T4-LDS-0293, Rev. 1 (5/6/13) FIGURE 3 Optional Unidirectional configuration (TVS and separate rectifier diode in parallel) ©2013 Microsemi Corporation FIGURE 4 Optional Bidirectional configuration (two TVS devices in anti-parallel) Page 6 of 6