TVS Diodes Axial > 1500W > 1N5908 Pb 1N5908 Description These devices are designed to protect voltage sensitive components from high voltage, high-energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time. These devices are the Littelfuse exclusive, cost effective, highly reliable axial leaded package and are ideally suited for use in communication systems, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications, to protect CMOS, MOS and Bipolar integrated circuits. Features Working Peak Reverse Voltage Range - 5.0 V Peak Power - 1500 Watts 1 ms Maximum Ratings and Thermal Characteristics Maximum Clamp Voltage Peak Pulse Current Low Leakage < 5 A Above 10 V Rating Symbol Value Unit Response Time is Typically < 1 ns Bi-directional Peak Power Dissipation (Note 1) These are Pb-Free Devices* P 1500 W PK T 25C L Functional Diagram Steady State Power Dissipation 5.0 W T 75C, Lead Length = 3/8 P L PK mW/C 50 Derated above T = 75C L Cathode Anode Thermal Resistance, 20 C/W R Junction-to-Lead 8JL Forward Surge Current (Note 2) Additional Information I 200 A FSM TA = 25C Uni-directional Operating and Storage 65 to T , T C/W J stg Temperature Range +175 Samples Datasheet Resources Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. Nonrepetitive current pulse per Figure 4 and derated above TA = 25C per Figure 2. 2. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum. *Bidirectional device will not be available in this device 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17TVS Diodes Axial > 1500W > 1N5908 I-V Curve Characteristics (T = 25C unless otherwise noted, V = 3.5 V Max. I (Note 3) = 100 A) A F F Symbol Parameter I I Maximum Reverse Peak Pulse Current I PP V Clamping Voltage I C PP V Working Peak Reverse Voltage RWM I Maximum Reverse Leakage Current V R RWM V I V Breakdown Voltage I I BR T I Test Current T I Forward Current F I V Forward Voltage I F F Ratings and Characteristic Curves Figure 1. Pulse Rating Curve Figure 2. Pulse Derating Curve 100 NONREPETITIVE PULSE WAVEFORM SHOWN IN FIGURE 5 100 10 80 60 40 20 1 0 s s 1 ms 10 ms 02 55 07 51 00 1251 50 175 200 T , AMBIENT TEMPERATURE C( ) A t , PULSE WIDTH Figure 3. Steady State Power Derating Figure 4. Pulse Waveform PULSE WIDTH (t ) IS DEFINED P AS THAT POINT WHERE THE t s r PEAK CURRENT DECAYS TO 50% 3/8 OF I . PEAK VALUE - I PP PP 100 3/8 5 I PP 4 HALF VALUE - 2 50 3 2 t P 1 0 0 01 23 4 0 25 50 75 1001 25 1501 75 200 t, TIME (ms) T , LEAD TEMPERATURE (C) L 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 P , PEAK POWER (kW) PK P , STEADY STATE POWER DISSIPATION (WATTS) D PEAK PULSE DERATING IN % OF VALUE (%) PEAK POWER OR CURRENT T = 25C A