SMCJ78A

ELECTRONICS Transient Voltage Suppressors SMCJ Series Circuit Protection System Specifications are subject to change without notice. Transient Voltage Suppressors - SMCJ Series Features UNI 1. Halogen-free 2. Rohs compliant 3. Typical maximum temperature coefficient 4. ΔVBR = 0.1% x VBR@25°C x ΔT 5. Glass passivated Chip junction in DO-214AB package BI 6. 1500W peak pulse capadility at 10×1000μs waveform, repetition rate (duty cycles):0.01% 7. Fast response time:typically less than 1.0ps from 0 Volts to BV min 8. Excellent clamping capability 9. Low incremental surge resistance 10. Typical IR less than 5μA above 12V BI Cathode 11. High temperature soldering guaranteed: 260°C/40 seconds / 0.375”, Anode 12. (9.5mm) lead length, 5lbs., (2.3kg) tension 13. Plastic package has underwriters laboratory flammability classification UNI 94v-0 Applications TVS devices are ideal for the protection of I/O interfaces,VCC bus and other vulnerable circuits used in telecom, computer, industrial and consumer electronic applications. Mechanical Characteristics Rating Symbol Value Units Peak Pulse Power Dissipation at TA=25°C by 10x1000μs waveform (Fig.1)(Note 1), (Note 2) PPPM 1500 Watts Power Dissipation on infinite heat sink at TA=50°C PD 6.5 Watts IFSM 200 Amps VF 3.5V/5.0 V Operating junction and Storage Temperature Range. TJ,TSTG -55°C to 150°C °C Typical Thermal Resistance Junction to Lead RuJL 15 °C/W Typical Thermal Resistance Junction to Ambient RuJA 75 °C/W Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note 3) Maximum Instantaneous Forward Voltage at 25A for Unidirectional only (Note 4) Notes: 1. Non-repetitive current pulse , per Fig. 3 and derated above TA = 25°C per Fig. 2. 2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 perminute maximum. 3. VF