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SA18 Scheda tecnica(PDF) 1 Page - Shanghai Semitech Semiconductor Co., Ltd |
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SA18 Scheda tecnica(HTML) 1 Page - Shanghai Semitech Semiconductor Co., Ltd |
1 / 6 page SHANGHAI SEMITECH SEMICONDUCTOR CO., LTD SA5.0A---SA440CA GLASS PASSIVATED JUNCTION TRANSIENT VOLTAGE SUPPRESSOR Features Glass Passivated Die Construction 500W Peak Pulse Power Dissipation Uni-directional Versions Available Excellent Clamping Capability DO-15 Fast Response Time < 1 ns Applications Communication Systems Power Supplies Medical Equipment Business Machines Absolute Maximum Ratings Parameter Symbol Value Units Peak Power Dissipation (Note 1.) @TL = 25°C, Pulse Width = 1 ms PPK 500 W Forward Surge Current (Note 2.) @TA = 25°C IFSM 70 A Power Dissipation, @TL = 75°C Lead lengths 0.375”(9.5mm) PM(AV) 3.0 W Storage Temperature Range TSTG -55 to 150 °C Operating Junction Temperature Range TJ -55 to 150 °C DIMENSIONS Millimeters Inches REF. Min. Max. Min. Max. A 25.4 31 1.000 1.220 b 5.84 7.62 0.230 0.300 c 0.71 0.86 0.028 0.034 D 2.64 3.56 0.104 0.140 1. 10 X 1000 us, non–repetitive 2. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum 3. Mounted on minimum recommended pad layout 4. A transient suppressor is normally selected according to the working peak reverse voltage (VRWM), which should be equal to or greater than the DC or continuous peak operating voltage level. 5. VBR measured at pulse test current IT at an ambient temperature of 25°C. 6. Surge current waveform per Figure 1 and derate per Figure 3. WWW.SEMITECH.CN |
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