SM15TY Automotive 1500 W Transil™ − Datasheet production data Features ■ Peak pulse power: A – 1500 W (10/1000 µs) – 10 kW (8/20 µs) ■ Stand-off voltage range: from 5.8 V to 70 V K Unidirectional Bidirectional ■ Unidirectional and bidirectional types ■ Low leakage current: SMC – 0.2 µA at 25 °C (JEDEC DO-214AB) – 1 µA at 85 °C ■ Operating T : 150 °C j max ■ High power capability at T : jmax – 1250 W (10/1000 µs) Description ■ JEDEC registered package outline The SM15TY Transil series has been designed to ■ Resin meets UL 94, V0 protect sensitive automotive circuits against ■ AEC-Q101 qualified surges defined in ISO 7637-2 and against electrostatic discharges according to ISO 10605. Complies with the following standards The Planar technology makes it compatible with ■ ISO 10605, C = 150 pF - R = 330 Ω : high-end circuits where low leakage current and high junction temperature are required to provide – 30 kV (air discharge) reliability and stability over time. SM15TY are – 30 kV (contact discharge) packaged in SMC (SMC footprint in accordance ■ ISO 10605 - C = 330 pF, R = 330 Ω: with IPC 7531 standard). – 30 kV (air discharge) – 30 kV (contact discharge) ■ ISO 7637-2(a) – Pulse 1: V = -100 V S – Pulse 2a: V = +50 V S – Pulse 3a: V = -150 V S – Pulse 3b: V = +100 V S a. Not applicable to parts with stand-off voltage lower TM: Transil is a trademark of STMicroelectronics than the average battery voltage (13.5 V) March 2012 Doc ID 17865 Rev 3 1/12 This is information on a product in full production. www.st.com 12

Characteristics SM15TY 1 Characteristics Table 1. A bsolute maximum ratings (T = 25 °C) amb Symbol Parameter Value Unit ISO 10605 (C = 330 pF, R = 330 Ω ): Contact discharge 30 Air discharge 30 V Peak pulse voltage kV PP ISO 10605 (C = 150 pF, R = 330 )Ω: Contact discharge 30 Air discharge 30 P Peak pulse power dissipation(1) T = T 1500 W PP jinitial amb T Storage temperature range -65 to + 150 °C stg T Operating junction temperature range -40 to + 150 °C j T Maximum lead temperature for soldering during 10 s. 260 °C L 1. For a surge greater than the maximum values, the diode will fail in short-circuit. Figure 1. Electrical characteristics - definitions II II Symbol Parameter VRM Stand-off voltage Unidirectional IIFF IIPPPP VBR Breakdown voltage VCL Clamping voltage II IRM Leakage current @VRM VVCCLLVVBBRRVVRRMM VVFF VV VVCCLLVVBBRRVVRRMM IIRRRRMM VV IαPTP PVoelatakg peu tlseem cpuerrraetnutre coefficient IIRIRIRRMM IIRRIIRRMM VVRRMMVVBBRRVVCCLL VF Forward voltage drop RD Dynamic resistance IIPPPP IIPPPP Bidirectional Figure 2. Pulse definition for electrical characteristics %IPP 100 Pulse waveform 50 tr = rise time (µs) tp = pulse duration time (µs) 0 t tr tp 2/12 Doc ID 17865 Rev 3

SM15TY Characteristics Table 2. E lectrical characteristics, typical values unless otherwise stated (T = 25 °C) amb R R V @I D V @I D I max@V V @I (1) CL PP 10/1000 CL PP 8/20 αT (2) RM RM BR R 10/1000µs 8/20µs µs µs Order code 25 °C 85 °C min typ max max max max 10-4/ µA V V mA V(3) A(4) Ω V(3) A(4) Ω °C SM15T6V8AY/CAY 500 2000 5.8 6.45 6.8 7.14 10 10.5 143 0.023 13.4 746 0.008 5.7 SM15T7V5AY/CAY 250 1000 6.4 7.13 7.5 7.88 10 11.3 132 0.026 14.5 690 0.01 6.1 SM15T10AY/CAY 10 50 8.55 9.5 10 10.5 1 14.5 103 0.039 18.6 538 0.015 7.3 SM15T12AY/CAY 0.2 1 10.2 11.4 12 12.6 1 16.7 90 0.046 21.7 461 0.02 7.8 SM15T15AY/CAY 0.2 1 12.8 14.3 15 15.8 1 21.2 71 0.076 27.2 368 0.031 8.4 SM15T18AY/CAY 0.2 1 15.3 17.1 18 18.9 1 25.2 59.5 0.106 32.5 308 0.044 8.8 SM15T22AY/CAY 0.2 1 18.8 20.9 22 23.1 1 30.6 49 0.153 39.3 254 0.064 9.2 SM15T24AY/CAY 0.2 1 20.5 22.8 24 25.2 1 33.2 45 0.178 42.8 234 0.075 9.4 SM15T27AY/CAY 0.2 1 23.1 25.7 27 28.4 1 37.5 40 0.228 48.3 207 0.096 9.6 SM15T30AY/CAY 0.2 1 25.6 28.5 30 31.5 1 41.5 36 0.278 53.5 187 0.12 9.7 SM15T33AY/CAY 0.2 1 28.2 31.4 33 34.7 1 45.7 33 0.333 59 169 0.14 9.8 SM15T36AY/CAY 0.2 1 30.8 34.2 36 37.8 1 49.9 30 0.403 64.3 156 0.17 9.9 SM15T39AY/CAY 0.2 1 33.3 37.1 39 41.0 1 53.9 28 0.461 69.7 143 0.2 10 SM15T47AY/CAY 0.2 1 40.2 44.7 47 49.4 1 64.5 23.2 0.653 84 119 0.291 10.1 SM15T56AY/CAY 0.2 1 48 53.3 56 58.9 1 77.4 20 0.925 100 100 0.411 10.3 SM15T68AY/CAY 0.2 1 58.1 64.6 68 71.4 1 92 16.3 1.26 121 83 0.6 10.4 SM15T75AY/CAY 0.2 1 64.1 71.3 75 78.8 1 103 14.6 1.66 134 75 0.74 10.5 SM15T82AY/CAY 0.2 1 70 77.8 82 86.0 1 113 13.9 1.94 146 69 0.87 10.5 1. Pulse test: t < 50 ms p 2. To calculate maximum clamping voltage at other surge level, use the following formula: V max = V - R x (I - I ) CL CL D PP PPappli where IPP is the surge current in the application appli 3. To calculate V or V versus junction temperature, use the following formulas: BR CL V @ T = V @ 25 °C x (1 + αT x (T - 25)) BR J BR J V @ T = V @ 25 °C x (1 + αT x (T - 25)) CL J CL J 4. Surge capability given for both directions for unidirectional and bidirectional types. Doc ID 17865 Rev 3 3/12

Characteristics SM15TY Figure 3. P eak pulse power dissipation Figure 4. Peak pulse power versus versus initial junction temperature exponential pulse duration (typical values) (T initial = 25 °C) j P (W) P (kW) 2000 PP 100.0 PP 10/1000µs 1500 10.0 1000 1.0 500 0 Tj(°C) 0.1 tp(ms) 0 25 50 75 100 125 150 175 1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 Figure 5. C lamping voltage versus peak Figure 6. Junction capacitance versus pulse current (exponential reverse applied voltage for waveform, maximum values) unidirectional types (typical values) 1000.0 IPP(A) 10000C(pF) T = 25 °C j initial F = 1 MHz V = 30 mV OSC RMS SM15T6V8AY T= 25 °C 100.0 j 8/20 µs 10/1000 µs 10.0 1000 SM S S SM15T30AY 1 M M 1.0 5T6V8A 15T30A 15T82A Y Y Y /C /C /C SM15T82AY A A A V (V) V (V) 0.1 Y Y Y CL 100 R 1 10 100 1000 1 10 100 1000 Figure 7. Junction capacitance versus Figure 8. Thermal resistance junction to reverse applied voltage for ambient versus copper surface bidirectional types (typical values) under each lead 10000 C(pF) 100 Rth(j-a)(°C/W) F = 1 MHz SM15T6V8CAY VOSC= 30 mVRMS 90 Printed circuit board FR4, T= 25 °C copper thickness= 35 µm j 80 70 60 SM15T30CAY 1000 50 40 30 SM15T82CAY 20 10 100 VR(V) 0 SCu(cm²) 1 10 100 1000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 4/12 Doc ID 17865 Rev 3

SM15TY Characteristics F igure 9. Leakage current versus junction Figure 10. Peak forward voltage drop versus temperature (typical values) peak forward current (typical values) I (nA) I (A) 1.E+04 R 100.0 FM V =V R RM V < 10V RM 1.E+03 10.0 1.E+02 Tj= 125 °C Tj= 25 °C 1.0 1.E+01 V ≥10V RM 1.E+00 Tj(°C) 0.1 VFM(V) 25 50 75 100 125 150 0.0 0.5 1.0 1.5 2.0 2.5 Figure 11. Relative variation of thermal impedance junction to ambient versus pulse duration Z /R 1.00 th(j-a) th(j-a) Recommended pad layout printed circuit board, copper thickness = 35 µm 0.10 Single pulse t(s) p 0.01 1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 Doc ID 17865 Rev 3 5/12

Characteristics SM15TY Figure 12. ISO7637-2 pulse 1 response (V = -100 V) S Voltage (V) Voltage 10 0 -10 -20 -30 SM15T39AY -40 SM15T39CAY -50 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 Time (ms) Current (A) 5 Current 0 SM15T39AY -5 SM15T39CAY -10 -15 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 Time (ms) Figure 13. ISO7637-2 pulse 2 response (V = 50 V) S Voltage (V) 50 Voltage 40 SM15T39AY 30 SM15T39CAY 20 1100 0 -20 0 20 40 60 80 100 Time (µs) Current (A) 12 Current 8 SM15T39AY 4 SM15T39CAY 0 -4 -20 0 20 40 60 80 100 Time (µs) 6/12 Doc ID 17865 Rev 3

SM15TY Characteristics Figure 14. ISO7637-2 pulse 3a response (V = -150 V) S Voltage (V) Voltage 20 0.0 SM15T39AY -20 SM15T39CAY -40 -60 -0.5 0.0 0.5 1.0 1.5 2.0 Time (µs) Current (A) 1 Current 0.0 SM15T39AY SM15T39CAY -1 -2 -0.2 0.8 1.8 0.0 0.0 0.0 Time (µs) Figure 15. ISO7637-2 pulse 3b response (V = 100 V) S Voltage (V) 50 Voltage 40 SM15T39AY 30 SM15T39CAY 20 10 0 -0.2 0.8 1.8 Time (µs) Current (A) 1.2 Current 0.8 SM15T39AY 0.4 SM15T39CAY 0 -0.4 -0.2 0.8 1.8 Time (µs) Note: ISO7637-2 pulses responses are not applicable for product with a stand off voltage lower than the average battery voltage (13.5 V). Doc ID 17865 Rev 3 7/12

Application and design guidelines SM15TY 2 Application and design guidelines More information is available in the Application note AN2689 “Protection of automotive electronics from electrical hazards, guidelines for design and component selection”. 3 Ordering information scheme Figure 16. Ordering information scheme SM 15T XX CA Y Surface mount Surge rating 15 = 1500WTransil in SMC Breakdown voltage Types CA = Bidirectional A = Unidirectional Automotive grade 8/12 Doc ID 17865 Rev 3

SM15TY Package information 4 Package information ● Case: JEDEC DO-214AB molded plastic over planar junction ● Terminals: solder plated, solderable as per MIL-STD-750, Method 2026 ● Polarity: for unidirectional types the band indicates cathode ● Flammability: epoxy is rated UL 94, V0 ● RoHS package In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. T able 3. SMC dimensions Dimensions Ref. Millimeters Inches E1 Min. Max. Min. Max. A1 1.90 2.45 0.075 0.096 D A2 0.05 0.20 0.002 0.008 b 2.90 3.20 0.114 0.126 c 0.15 0.40 0.006 0.016 E D 5.55 6.25 0.218 0.246 A1 E 7.75 8.15 0.305 0.321 C A2 E1 6.60 7.15 0.260 0.281 E2 L b E2 4.40 4.70 0.173 0.185 L 0.75 1.50 0.030 0.059 F igure 17. SMC footprint dimensions in Figure 18. Marking layout(1) mm (inches) 1.54 5.11 1.54 (0.061) (0.201) (0.061) Cathode bar (unidirectionaldevicesonly) ECOPACK compliance 3.14 (0.124) XXX: Marking x x x Z: Manufacturing location Y: Year WW: week z y ww 8.19 (0.322) 1. Marking layout can vary according to assembly location. Doc ID 17865 Rev 3 9/12

Package information SM15TY T able 4. Marking Order code Marking Order code Marking SM15T6V8AY MDEY SM15T6V8CAY BDEY SM15T7V5AY MDGY SM15T7V5CAY BDGY SM15T10AY MDPY SM15T10CAY BDPY SM15T12AY MDTY SM15T12CAY BDTY SM15T15AY MDXY SM15T15CAY BDXY SM15T18AY MEEY SM15T18CAY BEEY SM15T22AY MEKY SM15T22CAY BEKY SM15T24AY MEMY SM15T24CAY BEMY SM15T27AY MEPY SM15T27CAY BEPY SM15T30AY MERY SM15T30CAY BERY SM15T33AY METY SM15T33CAY BETY SM15T36AY MEVY SM15T36CAY BEVY SM15T39AY MEXY SM15T39CAY BEXY SM15T47AY MFAY SM15T47CAY BFAY SM15T56AY MFBY SM15T56CAY BFBY SM15T68AY MFPY SM15T68CAY BFPY SM15T75AY MFOY SM15T75CAY BFOY SM15T82AY MFRY SM15T82CAY BFRY 10/12 Doc ID 17865 Rev 3

SM15TY Ordering information 5 Ordering information T able 5. Ordering information Order code Marking Package Weight Base qty Delivery mode SM15TxxxAY/CAY(1) See Table4 on page10 SMC 0.25 g 2500 Tape and reel 1. Where xxx is nominal value of V and A or CA indicates unidirectional or bidirectional version. See BR Table2 for list of available devices and their order codes 6 Revision history T able 6. Document revision history Date Revision Changes 15-Sep-2010 1 Initial release. Added order codes in Table2 and Table4. Updated Figure5, 6, 7, and Table 1. Added Figure11. 09-Nov-2011 2 Deleted old Table2. Thermal parameter. Updated ISO 10605, C = 150 pF - R = 330 Ω : on page1 27-Mar-2012 3 Added footnote on page 1. Doc ID 17865 Rev 3 11/12

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