SM15T27CA

SM15T TRANSIL™ Features ■ ■ ■ ■ ■ ■ Peak pulse power: 1500 W (10/1000 µs) Breakdown voltage range: from 6.8 V to 220 V Uni and bidirectional types Low clamping factor Fast response time UL recognized A K Unidirectional Bidirectional SMC (JEDEC DO-214AB) Description Transil diodes provide high overvoltage protection by clamping action. Their instantaneous response to transient overvoltages makes them particularly suited to protect voltage sensitive devices such as MOS Technology and low voltage supplied IC’s. Order code Part number SM15TxxxA SM15TxxxCA Marking See Table 5 on page 7 See Table 5 on page 7 Table 1. Symbol PPP P IFSM Tstg Tj TL Absolute maximum ratings (Tamb = 25° C) Parameter Peak pulse power dissipation(1) Tj initial = Tamb Tamb = 50° C tp = 10ms Tj initial = Tamb Value 1500 6.5 200 -65 to + 175 150 260 Unit W W A °C °C °C Power dissipation on infinite heatsink Non repetitive surge peak forward current for unidirectional types Storage temperature range Maximum operating junction temperature Maximum lead temperature for soldering during 10 s. 1. For a surge greater than the maximum values, the diode will fail in short-circuit. Table 2. Symbol Rth(j-l) Rth(j-a) Thermal parameter Parameter Junction to leads Junction to ambient on printed circuit on recommended pad layout Value 15 75 Unit °C/W °C/W TM: TRANSIL is a trademark of STMicroelectronics February 2007 Rev 4 1/9 www.st.com 9 Characteristics SM15T 1 Table 3. Symbol VBR IRM VRM VCL Rd αT IPP Characteristics Electrical characteristics Parameter I I IPP Breakdown voltage Leakage current @ VRM Stand-off voltage VCL VBR VRM Unidirectional IF VF IRM IR V VCLVBR VRM Clamping voltage Dynamic impedance Voltage temperature coefficient Peak pulse current IR IRM IRM IR V VRMVBR VCL IPP IPP Bidirectional IRM @ VRM Type max min SM15T6V8A/CA SM15T7V5A/CA SM15T10A/CA SM15T12A/CA SM15T15A/CA SM15T18A/CA SM15T22A/CA SM15T24A/CA SM15T27A/CA SM15T30A/CA SM15T33A/CA SM15T36A/CA SM15T39A/CA SM15T68A/CA SM15T75A/CA SM15T100A/CA SM15T150A/CA SM15T200A/CA SM15T220A/CA µA 1000 500 10 5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 V 5.8 6.4 8.55 10.2 12.8 15.3 18.8 20.5 23.1 25.6 28.2 30.8 33.3 58.1 64.1 85.5 128 171 188 V 6.45 7.13 9.5 11.4 14.3 17.1 20.9 22.8 25.7 28.5 31.4 34.2 37.1 64.6 71.3 95.0 143 190 209 VBR @ IR(1) nom V 6.8 7.5 10 12 15 18 22 24 27 30 33 36 39 68 --100 150 200 220 VCL @ IPP 10/1000 µs max mA 10 10 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 V 10.5 11.3 14.5 16.7 21.2 25.2 30.6 33.2 37.5 41.5 45.7 49.9 53.9 92 103 137 207 274 328 A 143 132 103 90 71 59.5 49 45 40 36 33 30 28 16.3 14.6 11 7.2 5.5 4.6 %IPP 100 VCL @ IPP 8/20 µs max V 13.4 14.5 18.6 21.7 27.2 32.5 39.3 42.8 48.3 53.5 59.0 64.3 69.7 121 134 178 265 353 388 A 746 690 538 461 368 308 254 234 207 187 169 156 143 83 75 56 38 28 26 10 µs αT max(2) 10-4/°C 5.7 6.1 7.3 7.8 8.4 8.8 9.2 9.4 9.6 9.7 9.8 9.9 10.0 10.4 10.5 10.6 10.8 10.8 10.8 C typ(3) pF 9500 8500 7000 6000 5000 4300 3700 3500 3200 2900 2700 2500 2400 1550 1450 1150 850 675 625 max V 7.14 7.88 10.5 12.6 15.8 18.9 23.1 25.2 28.4 31.5 34.7 37.8 41.0 71.4 78.8 105 158 210 231 1. Pulse test: tp < 50 ms. 2. ΔVBR = αT * (Tamb - 25) * VBR (25°C) 3. VR = 0 V, F = 1 MHz. For bidirectional types capacitance value is divided by 2. Pulse waveform 10/1000µs 50 0 1000 µs t 2/9 SM15T Characteristics Figure 1. Peak pulse power dissipation versus initial junction temperature (printed circuit board) Figure 2. Peak pulse power versus exponential pulse duration % 100.0 PPP (kW) 100 80 10.0 60 40 1.0 20 Tj initial (°C) 0 0 20 40 60 80 100 120 140 160 180 200 0.1 1.E-03 1.E-02 ø tp (ms) 1.E-01 1.E+00 1.E+01 Figure 3. Clamping voltage versus peak pulse current Exponential waveform tp = 20 ms tp = 1 ms—————— tp = 10 ms............... VCL (V) 1000 100 50 %IPP Tj initial = 25°C SM15T 220A 0 SM15T 150A tr tp tr < 10 µS t 100 SM15T 68A SM15T 39A SM15T 22A SM15T 10A 10 SM15T 6V8A IPP (A) 1 0.1 Note: 1 10 100 1000 The curves of figure 3 are specified for a junction temperature of 25° C before surge. The given results may be extrapolated for other junction temperatures by using the following formula: ΔVBR = αT * [Tamb -25] * VBR (25° C) For intermediate voltages, extrapolate the given results. 3/9 Characteristics SM15T Figure 4. Capacitance versus reverse applied Figure 5. voltage for unidirectional types (typical values) 10000 SM15T 6V8A SM15T 15A Tj = 25°C F = 1 MHz Capacitance versus reverse applied voltage for bidirectional types (typical values) C (pF) SM15T 6V8CA Tj = 25°C F = 1 MHz C (pF) 10000 SM15T 15CA SM15T 30A 1000 SM15T 68A SM15T 200A 1000 SM15T 30CA SM15T 68CA SM15T 200CA 100 100 VR (V) 10 1 10 100 500 10 1 10 VR (V) 100 500 Figure 6. Peak forward voltage drop versus Figure 7. peak forward current (typical values for unidirectional types) Transient thermal impedance junction-ambient versus pulse duration - mounting on FR4 PC board with recommended pad layout IFM (A) 500 100 Zth(j-a) (°C/W) 100 Tj initial = 25°C 10 Tj initial = 175°C 10 1 VFM (V) 1 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 tp (s) 0.1 0.01 0.1 1 10 100 1000 Figure 8. Relative variation of leakage current versus junction temperature 5E+3 1E+3 IR (Tj) IR (Tj = 25°C) VR = VRM 1E+2 1E+1 1E+0 Tj (°C) 1E-1 0 25 50 75 100 125 150 4/9 SM15T Ordering information scheme 2 Ordering information scheme SM Surface Mount Surge rating 15 = 1500 W Breakdown voltage 100 = 100 V Type A = Unidirectional CA = Bidirectional 15 T xx CA 5/9 Package mechanical data SM15T 3 Package mechanical data ● ● ● ● ● Case: JEDEC DO-214AB molded plastic over Planar junction Terminals: Solder plated, solderable per MIL-STD-750, Method 2026 Polarity: For unidirectional types the band indicates cathode Flammability: Epoxy is rated UL94V-0 RoHS package SMC dimensions Dimensions Ref. E1 Table 4. Millimeters Min. Max. 2.45 0.20 3.2 0.41 8.15 7.15 4.70 6.25 1.60 Inches Min. 0.075 0.002 0.114 0.006 0.305 0.260 0.173 0.218 0.030 Max. 0.096 0.008 0.126 0.016 0.321 0.281 0.185 0.246 0.063 A1 D 1.90 0.05 2.90 0.15 7.75 6.60 4.40 5.55 0.75 A2 b E c E A1 E1 b C A2 E2 L E2 D L Figure 9. Footprint dimensions (millimeter) Figure 10. Marking layout 2.20 4.25 2.20 Cathode bar (unidirectional devices only ) e3 3.30 xxx z y ww e3: ECOPACK ( Leadfree) XXX: Marking Z: Manufacturing location Y: Year WW: week 8.65 6/9 SM15T Table 5. Marking Marking MDE MDG MDP MDT MDX MEE MEK MEM MEP MER MET MEV MEX MFP MFO MFX MGK MGV MGX Bidirectional SM15T6V8CA SM15T7V5CA SM15T10CA SM15T12CA SM15T15CA SM15T18CA SM15T22CA SM15T24CA SM15T27CA SM15T30CA SM15T33CA SM15T36CA SM15T39CA SM15T68CA SM15T75CA SM15T100CA SM15T150CA SM15T200CA SM15T220CA Package mechanical data Unidirectional SM15T6V8A SM15T7V5A SM15T10A SM15T12A SM15T15A SM15T18A SM15T22A SM15T24A SM15T27A SM15T30A SM15T33A SM15T36A SM15T39A SM15T68A SM15T75A SM15T100A SM15T150A SM15T200A SM15T220A Marking BDE BDG BDP BDT BDX BEE BEK BEM BEP BER BET BEV BEX BFP BFO BFX BGK BGV BGX In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect . The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 7/9 Ordering information SM15T 4 Ordering information Delivery mode Tape and reel Part number SM15TxxxA SM15TxxCA Marking See Table 5 on page 7 Package Weight Base qty SMC See Table 5 on page 7 0.25 g 5000 5 Revision history Date September-2001 19-Feb-2007 Revision 3B 4 Last issue Reformatted to current standards. Peak pulse power Figure 2 on page 3 updated. Description of Changes 8/9 SM15T Please Read Carefully: Information in this document is provided solely in connection with ST products. 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