SMAT70A/SMBT70A 400W, 600W SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR NEW PRODUCT Features · · · · · · SMA, SMB 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 B A C D J Mechanical Data · · · · · · Maximum Ratings G E H 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 SMAT70A Package 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 D 0.15 0.31 0.15 0.31 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 @ 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 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 4) Typical Voltage Temp. Variation of VBR VRWM (V) Min (V) Max (V) IT (mA) IR (mA) VC (V) (A) (pF) mV/°C SMAT70A 70 77.8 89.5 1.0 5.0 100 3.5 55 80 KEX SMBT70A 70 77.8 89.5 1.0 5.0 100 5.3 80 80 NPX Part Number Notes: Marking Code 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 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 1.0 SMAT70A 0.1 0.1 1.0 10 100 1000 10000 IP, PEAK PULSE CURRENT (%Ipp) tp PULSE WIDTH (µs) Fig. 2 Pulse Rating Curve tr = 10µs 100 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. D-2 2 of 3 SMAT70A/SMBT70A TA, AMBIENT TEMPERATURE (°C) NEW PRODUCT 150 125 100 75 50 25 0 80 90 100 VBR, BREAKDOWN VOLTAGE (V) Fig. 4 Average Breakdown Voltage vs. Ambient Temperature Ordering Information (Note 4) Notes: Device Packaging Shipping SMAT70A-13 SMBT70A-13 SMA SMB 5000/Tape & Reel 4. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. Marking Information YWW XXX DS30213 Rev. D-2 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 3 of 3 SMAT70A/SMBT70A