SMAT70A/SMBT70A 400W, 600W SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR NEW PRODUCT Features · · · 400, 600W Peak Pulse Power Dissipation · · · Glass Passivated Die Construction SMA, SMB B 70V Standoff Voltage 100V Maximum Clamping Voltage A requirement of many -48V Backplane Telecom Applications A C Fast Response Time: Typically less than 1 ps Lead Free Finish/RoHS Complaint (Note 4) D J Mechanical Data · · · · · · · · G E H Case: SMA/SMB Case Material: Molded Plastic. UL Flammability Classification Rating 94V-0 SMAT70A Package Moisture Sensitivity: Level 1 per J-STD-020C Terminals: Lead Free Plating (Matte Tin Finish). Solderable per MIL-STD-202, Method 208 SMBT70A SMA SMB Dim Min Max Min Max A 2.29 2.92 3.30 3.94 B 4.00 4.60 4.06 4.57 C 1.27 1.63 1.96 2.21 Ordering Information: See Page 3 D 0.15 0.31 0.15 0.31 Weight: SMA 0.064 grams SMB 0.093 grams E 4.80 5.59 5.00 5.59 G 0.10 0.20 0.10 0.20 H 0.76 1.52 0.76 1.52 J 2.01 2.62 2.00 2.62 Polarity Indicator: Cathode Band Marking: Date Code (See Page 3) and Marking Code (See Page 1) Maximum Ratings @ TA = 25°C unless otherwise specified Characteristic Symbol SMAT70A SMBT70A Unit PPK 400 600 W IFSM 40 100 A Peak Pulse Power Dissipation (Non repetitive current pulse derated above TA = 25°C) Peak Forward Surge Current, 8.3ms Single Half Sine Wave Superimposed on Rated Load (JEDEC Method) (Note 2) Instantaneous Forward Voltage @ IPP = 35A (Note 2) Operating and Storage Temperature Range Electrical Characteristics Part Number VF 3.5 V Tj, TSTG -55 to +150 °C @TA = 25°C unless otherwise specified Reverse Standoff Voltage Breakdown Voltage VBR @ IT (Note 3) Test Current Max. Reverse Leakage @ VRWM Max. Clamping Voltage @ Ipp Max. Peak Pulse Current Ipp Typical Junction Capacitance (Note 3) Typical Voltage Temp. Variation of VBR VRWM (V) Min (V) IT (mA) IR (mA) VC (V) (A) (pF) mV/°C Max (V) Marking Code SMAT70A 70 77.8 89.5 1.0 5.0 100 3.5 140 80 KEX SMBT70A 70 77.8 89.5 1.0 5.0 100 5.3 290 80 NPX Notes: 1. 2. 3. 4. Measured with 8.3ms single half sine-wave. Duty cycle = 4 pulses per minute maximum. VBR measured with IT current pulse = 300ms. f = 1MHz, VR = 0VDC. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. DS30213 Rev. 7 - 2 1 of 3 www.diodes.com SMAT70A/SMBT70A ã Diodes Incorporated PEAK PULSE DERATING IN % OF PEAK POWER OR CURRENT NEW PRODUCT 100 75 50 25 10 X 1000 Waveform as defined by REA 0 0 25 50 75 100 125 150 175 200 TA, AMBIENT TEMPERATURE (° C) Fig. 1 Pulse Derating Curve Pd, PEAK PULSE POWER (kW) 100 Tj = 25° C Non Repetitive Pulse Waveform Shown in Fig. 3 10 SMBT70A SMAT70A 1.0 0.1 1.0 IP, PEAK PULSE CURRENT (%Ipp) 0.1 10 100 100 1000 10000 Peak Value Ipp Half Value Ipp/2 50 tp 10 X 1000 Waveform as defined by R.E.A. 0 0 1 2 3 t, TIME (ms) Fig. 3 Pulse Waveform DS30213 Rev. 7 - 2 2 of 3 www.diodes.com SMAT70A/SMBT70A VBR, BREAKDOWN VOLTAGE NEW PRODUCT 100 95 90 85 80 75 0 25 50 75 100 125 150 TA, AMBIENT TEMPERATURE (°C) Fig. 4 Average Breakdown Voltage vs. Ambient Temperature Ordering Information Notes: (Note 5) Device Packaging Shipping SMAT70A-13-F SMA 5000/Tape & Reel SMBT70A-13-F SMB 3000/Tape & Reel 5. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. Marking Information YWW XXX XXX = Product type marking code (See Sheet 1) = Manufacturers’ code marking YWW = Date code marking Y = Last digit of year ex: 2 for 2002 WW = Week code 01 to 52 IMPORTANT NOTICE Diodes, Inc. and its subsidiaries reserve the right to make changes without further notice to any product herein to make corrections, modifications, enhancements, improvements, or other changes. Diodes, Inc. does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT The products located on our website at www.diodes.com are not recommended for use in life support systems where a failure or malfunction of the component may directly threaten life or cause injury without the express written approval of Diodes Incorporated. DS30213 Rev. 7 - 2 3 of 3 www.diodes.com SMAT70A/SMBT70A