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SMAT70A/SMBT70A 400W, 600W SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR Features NEW PRODUCT * * * * * * 400, 600W Peak Pulse Power Dissipation 70V Standoff Voltage 100V Maximum Clamping Voltage A requirement of many -48V Backplane Telecom Applications Glass Passivated Die Construction Fast Response Time: Typically less than 1 ps Plastic Material - UL Flammability Classification Rating 94V-0 SMA, SMB B A C D J Mechanical Data * * * * * * Case: SMA, SMB Transfer Molded Epoxy Terminals: Solderable per MIL-STD-202, Method 208 Polarity Indicator: Cathode Band Marking: Date Code (See Sheet 3) and Marking Code (See Sheet 1) Weight: SMA 0.064 grams SMB 0.093 grams Ordering Information: Sheet 3 H G E SMBT70A SMB Min 3.30 4.06 1.96 0.15 5.00 0.10 0.76 2.00 Max 3.94 4.57 2.21 0.31 5.59 0.20 1.52 2.62 SMAT70A Package Dim A B C D E G H J SMA Min 2.29 4.00 1.27 0.15 4.80 0.10 0.76 2.01 Max 2.92 4.60 1.63 0.31 5.59 0.20 1.52 2.62 Maximum Ratings @ TA = 25C unless otherwise specified Symbol PPK IFSM VF Tj, TSTG SMAT70A 400 40 3.5 -55 to +150 SMBT70A 600 100 Unit W A V C Characteristic Peak Pulse Power Dissipation (Non repetitive current pulse derated above TA = 25C) 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 Reverse Standoff Voltage VRWM (V) SMAT70A SMBT70A Notes: 70 70 Breakdown Voltage VBR @ IT (Note 3) Min (V) 77.8 77.8 Max (V) 89.5 89.5 @TA = 25C unless otherwise specified Max. Reverse Leakage @ VRWM IR (mA) 5.0 5.0 Max. Clamping Voltage @ Ipp VC (V) 100 100 Max. Peak Pulse Current Ipp (A) 3.5 5.3 Typical Junction Capacitance (Note 4) (pF) 55 80 Typical Voltage Temp. Variation of VBR mV/C 80 80 KEX NPX Part Number Test Current Marking Code IT (mA) 1.0 1.0 1. Measured with 8.3ms single half sine-wave. Duty cycle = 4 pulses per minute maximum. 2. VBR measured with IT current pulse = 300ms. 3. f = 1MHz, VR = 0VDC. DS30213 Rev. D-2 1 of 3 SMAT70A/SMBT70A 100 NEW PRODUCT PEAK PULSE DERATING IN % OF PEAK POWER OR CURRENT 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 100 Pd, PEAK PULSE POWER (kW) Tj = 25C Non Repetitive Pulse Waveform Shown in Fig. 3 10 SMBT70A 1.0 SMAT70A 0.1 0.1 1.0 10 100 1000 10000 tp PULSE WIDTH (s) Fig. 2 Pulse Rating Curve IP, PEAK PULSE CURRENT (%Ipp) 100 tr = 10s Peak Value Ipp Half Value Ipp/2 50 tp 0 10 X 1000 Waveform as defined by R.E.A. 0 1 2 3 t, TIME (ms) Fig. 3 Pulse Waveform DS30213 Rev. D-2 2 of 3 SMAT70A/SMBT70A 150 NEW PRODUCT TA, AMBIENT TEMPERATURE (C) 125 100 75 50 25 0 80 90 100 VBR, BREAKDOWN VOLTAGE (V) Fig. 4 Average Breakdown Voltage vs. Ambient Temperature Ordering Information (Note 4) Device SMAT70A-13 SMBT70A-13 Notes: Packaging SMA SMB Shipping 5000/Tape & Reel 4. 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 DS30213 Rev. D-2 3 of 3 SMAT70A/SMBT70A |
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