LESHAN RADIO COMPANY, LTD. High Voltage Switching Diode BAS21LT1 1 ANODE 3 CATHODE 3 MAXIMUM RATINGS Rating Continuous Reverse Voltage Peak Forward Current Peak Forward Surge Current Symbol Value Unit VR IF 250 200 625 Vdc mAdc mAdc I FM(surge) 1 2 CASE 318-08, STYLE 8 SOT-23 (TO-236AB) DEVICE MARKING BAS21LT1 = JS THERMAL CHARACTERISTICS Characteristic Total Device Dissipation FR- 5 Board, (1) TA = 25C Derate above 25C Thermal Resistance, Junction to Ambient Total Device Dissipation Alumina Substrate, (2) TA = 25C Derate above 25C Thermal Resistance, Junction to Ambient Junction and Storage Temperature Symbol Max Unit PD 225 mW 1.8 mW/C RJA 556 C/W PD 300 mW 2.4 mW/C 417 -55 to +150 C/W C RJA TJ , Tstg ELECTRICAL CHARACTERISTICS (T A = 25C unless otherwise noted) Characteristic Symbol Min Max Unit -- -- 1.0 100 250 -- -- -- 1000 1250 CD -- 5.0 pF t rr -- 50 ns OFF CHARACTERISTICS Reverse Voltage Leakage Current (V R = 200Vdc) (V R = 200Vdc, T J = 150C) Reverse Breakdown Voltage (I BR = 100 Adc) Forward Voltage (I F = 100 mAdc) (I F = 200 mAdc) Diode Capacitance (V R = 0, f = 1.0 MHz) Reverse Recovery Time (I F = I R = 30mAdc, R L = 100 ) 1. FR-5 = 1.0 x 0.75 x 0.062 in. 2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina. Adc IR V (BR) VF Vdc mV G3-1/2 LESHAN RADIO COMPANY, LTD. BAS21LT1 +10 V 820 2.0 k 100 H 0.1 F 50 OUTPUT PULSE GENERATOR 0.1F IF tr tp t IF t rr 10% t 90% D.U.T. 50 INPUT SAMPLING OSCILLOSCOPE V R INPUT SIGNAL i R(REC) = 3.0 mA IR OUTPUT PULSE (I F = I R = 30 mA; MEASURED at i R(REC) = 3.0 mA) Notes: 1. A 2.0 k variable resistor adjusted for a Forward Current (I F ) of 30 mA. Notes: 2. Input pulse is adjusted so I R(peak) is equal to 30 mA. Notes: 3. t p t rr Figure 1. Recovery Time Equivalent Test Circuit G3-2/2