SMAJ85A-TR

® SMAJ5.0A-TR,CA-TR SMAJ188A-TR,CA-TR TRANSILTM FEATURES PEAK PULSE POWER : 400 W (10/1000µs) STAND OFF VOLTAGE RANGE : From 5V to 188V. UNI AND BIDIRECTIONAL TYPES LOW CLAMPING FACTOR FAST RESPONSE TIME JEDEC REGISTERED PACKAGE OUTLINE DESCRIPTION The SMAJ series are TRANSILTM diodes designed specifically for protecting sensitive equipment against transient overvoltages. The SMA package allows save spacing on high density printed circuit boards. 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. ABSOLUTE MAXIMUM RATINGS (Tamb = 25°C) Symbol PPP P IFSM Tstg Tj TL Parameter Peak pulse power dissipation (see note 1) Power dissipation on infinite heatsink Non repetitive surge peak forward current for unidirectional types Storage temperature range Maximum junction temperature Maximum lead temperature for soldering during 10 s. Tj initial = Tamb Tamb = 50°C tp = 10ms Tj initial = Tamb Value 400 3.3 40 - 65 to + 175 150 260 Unit W W A °C °C °C SMA (JEDEC D0214 AC) Note 1 : For a surge greater than the maximum values, the diode will fail in short-circuit. THERMAL RESISTANCES Symbol Rth (j-l) Rth (j-a) Junction to leads Junction to ambient on printed circuit on recommended pad layout Parameter Value 30 120 Unit °C/W °C/W September 1998 Ed: 5A 1/5 SMAJxxxA-TR, CA-TR ELECTRICAL CHARACTERISTICS (Tamb = 25°C) Symbol VRM VBR VCL IRM IPP Parameter Stand-off voltage Breakdown voltage Clamping voltage Leakage current @ VRM Peak pulse current Voltage temperature coefficient Forward voltage drop I PP VCL VBR V RM VF I RM V IF I αT VF IRM @ VRM Types Unidirectional SMAJ5.0A-TR SMAJ6.0A-TR SMAJ6.5A-TR SMAJ8.5A-TR SMAJ10A-TR SMAJ12A-TR SMAJ13A-TR SMAJ15A-TR SMAJ18A-TR SMAJ20A-TR SMAJ22A-TR SMAJ24A-TR SMAJ26A-TR SMAJ28A-TR SMAJ30A-TR SMAJ33A-TR SMAJ40A-TR SMAJ43A-TR SMAJ48A-TR SMAJ58A-TR SMAJ70A-TR SMAJ85A-TR SMAJ100A-TR SMAJ130A-TR SMAJ154A-TR SMAJ170A-TR SMAJ188A-TR % I PP 100 10 s VBR @ IR min note2 V mA 6.4 10 6.7 10 7.2 10 9.44 1 11.1 1 13.3 1 14.4 1 16.7 1 20 1 22.2 1 24.4 1 26.7 1 28.9 1 31.1 1 33.3 1 36.7 1 44.4 1 47.8 1 53.3 1 64.4 1 77.8 1 94.4 1 111 1 144 1 171 1 189 1 209 1 VCL @ IPP max 10/1000µs V A 9.2 43.5 10.3 38.8 11.2 35.7 14.4 27.7 17 23.5 19.9 20.1 21.5 18.6 24.4 16.4 29.2 13.7 32.4 12.3 35.5 11.2 38.9 10.3 42.1 9.5 45.4 8.8 48.4 8.3 53.3 7.5 64.5 6.2 69.4 5.7 77.4 5.2 93.6 4.3 113 3.5 137 2.9 162 2.5 209 1.9 246 1.6 275 1.4 328 1.4 VCL @ IPP max 8/20µs V A 13.4 174 13.7 170 14.5 160 18.6 124 21.7 106 25.3 91 27.2 85 32.5 71 39.3 59 42.8 54 48.3 48 50 46 53.5 43 59 39 64.3 36 69.7 33 84 27 91 25 100 23 121 19 146 16 178 13 212 11 265 9 317 7 353 6.5 388 6 αT max note3 10-4/°C 5.7 5.9 6.1 7.3 7.8 8.3 8.4 8.8 9.2 9.4 9.6 9.6 9.7 9.8 9.9 10.0 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.8 10.8 10.8 C typ note4 pF 3500 3300 3100 2000 1550 1325 1200 975 800 725 625 600 575 510 480 450 370 350 320 270 230 200 170 145 125 120 110 max V 5.0 6.0 6.5 8.5 10 12 13 15 18 20 22 24 26 28 30 33 40 43 48 58 70 85 100 130 154 170 188 Mark. AE DUB DUC DUH AX DUK BG BM DUQ DUR DUS DUT DUU CG CK CM DUZ EUA CX EUF EUI EUL EUN EUQ EUT SR EUV Bidirectional Mark. µA SMAJ5.0CA-TR AA 800 SMAJ6.0CA-TR DBB 800 SMAJ6.5CA-TR DBC 500 SMAJ8.5CA-TR DBH 10 SMAJ10CA-TR AC 5 SMAJ12CA-TR DBK 5 SMAJ13CA-TR BH 1 SMAJ15CA-TR AJ 1 SMAJ18CA-TR DBQ 1 SMAJ20CA-TR DBR 1 SMAJ22CA-TR DBS 1 SMAJ24CA-TR DBT 1 SMAJ26CA-TR DBU 1 SMAJ28CA-TR CH 1 SMAJ30CA-TR CL 1 SMAJ33CA-TR CN 1 SMAJ40CA-TR DBZ 1 SMAJ43CA-TR EBA 1 SMAJ48CA-TR CY 1 SMAJ58CA-TR EBF 1 SMAJ70CA-TR EBI 1 SMAJ85CA-TR EBL 1 SMAJ100CA-TR EBN 1 SMAJ130CA-TR EBQ 1 SMAJ154CA-TR EBT 1 SMAJ170CA-TR SS 1 SMAJ188CA-TR EBV 1 Note 2 :Pulse test : tp < 50 ms. Note 3 :∆VBR = αT * (Tamb - 25) * VBR(25°C). Note 4 :VR = 0 V, F = 1 MHz. For bidirectional types, PULSE WAVEFORM 10/1000 s 50 capacitance value is divided by 2. 0 1000 s t 2/5 SMAJxxxA-TR, CA-TR Fig 1: Peak power dissipation versus initial junction temperature. 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 Ppp[Tj initial]/Ppp[Tj initial=25°C] 5000 Fig 2: Peak pulse power versus exponential pulse duration (Tj initial=25°C). Ppp(W) 1000 Tj initial(°C) 0 25 50 75 100 125 150 175 100 0.01 0.10 tp(ms) 1.00 10.00 Fig 3: Clamping voltage versus peak pulse current (Tj initial=25°C) Exponential waveform tp=20µs & tp=1ms. 200.0 100.0 Ipp(A) SMAJ5.0A,CA SMAJ13A,CA tp=20µs SMAJ26A,CA 10.0 tp=1ms SMAJ58A,CA SMAJ188A,CA 1.0 VCL(V) 0.1 1 10 100 500 Fig 4-1: Capacitance versus reverse applied voltage (typical values) (SMAJxxA). 5000 C(pF) Fig 4-2: Capacitance versus reverse applied voltage (typical values) (SMAJxxCA). 2000 1000 C(pF) SMAJ5.0CA F=1MHz SMAJ5.0A F=1MHz 1000 SMAJ13A SMAJ26A SMAJ58A SMAJ13CA 100 SMAJ26CA SMAJ58CA SMAJ188CA 100 SMAJ188A 10 VR(V) 10 1 10 100 200 1 1 VR(V) 10 100 200 3/5 SMAJxxxA-TR, CA-TR Fig 5: Peak forward voltage drop versus peak forward current (typical values). 10.00 IFM(A) 1.00 Fig 6: Relative variation of thermal impedance junction to ambient versus pulse duration. Zth(j-a)/Rth(j-a) 1.00 Tj=125°C 0.10 0.10 Tj=25°C VFM(V) 0.01 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 0.01 1E-2 tp(s) 1E-1 1E+0 1E+1 1E+2 5E+2 Fig 7: Thermal resistance junction to ambient versus copper surface under each lead (printed circuit board FR4 e(Cu)=35µm). 140 130 120 110 100 90 80 70 60 50 40 Rth(j-a) (°C/W) Fig 8: Relative variation of leakage current versus junction temperature. IR[Tj] / IR [Tj=25°C] 2E+3 1E+3 VBR ≥ 8.5V 1E+2 1E+1 1E+0 VBR < 8.5V S(Cu)(cm²) 1E-1 Tj(°C) 0 1 2 3 4 5 0 25 50 75 100 125 150 4/5 SMAJxxxA-TR, CA-TR ORDER CODE SM A J 85 C A - TR SURFACE MOUNT 400 WATTS STAND OFF VOLTAGE TAPE & REEL BIDIRECTIONAL No suffix : Unidirectional MARKING : Logo, Date Code, Type Code, Cathode Band (for unidirectional types only). PACKAGE MECHANICAL DATA SMA (Plastic) REF. E1 DIMENSIONS Millimeters Min. A1 1.90 0.05 1.25 0.15 4.80 3.95 2.25 0.75 Max. 2.70 0.20 1.65 0.41 5.60 4.60 2.95 1.60 Inches Min. 0.075 0.002 0.049 0.006 0.189 0.156 0.089 0.030 Max. 0.106 0.008 0.065 0.016 0.220 0.181 0.116 0.063 D A2 b E c E A1 E1 C L A2 b D L FOOTPRINT DIMENSIONS (Millimeter) SMA Plastic. Weight = 0.068 g 1.65 Packaging : standard packaging is in tape and reel. 1.45 2.40 1.45 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics © 1998 STMicroelectronics - Printed in Italy - All rights reserved. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 5/5