BAS21

Surface Mount Switching Diode COMCHIP www.comchip.com.tw BAS21 V oltage: 250 Volts Current: 0.2Amp Feature H igh Voltage Switching Diode Surface Mount Package Ideally Suited for Automatic Insertion F or General Purpose Switching Applications .119 (3.0) .110 (2.8) .020 (0.5) SOT-23 Top View .056 (1.40) .047 (1.20) .006 (0.15) .002 (0.05) Mechanical Data Case: SOT -23, Plastic Terminals : Solderable per NIL-STD -202, Method 208 Approx. Weight: 0.008 gram .037(0.95) .037(0.95) .006 (0.15)max. .020 (0.5) .020 (0.5) .103 (2.6) .086 (2.2) Dimensions in inches (millimeters) Maximum Ratings Rating Continuous Reverse Voltage Peak Forward Current Peak Surge Forward Current Symbol VR IF IFSM(surge) Value 250 200.0 625 Units VDC mAdc mAdc Thermal Characteristics Characteristic Total Device Dissipation FR– 5 Board(1) T A = 25°C Derate above 25°C Thermal Resistance, Junction to Am bient Total Device Dissipation Alumina Substrate,(2) T A = 25°C Derate above 25°C Thermal Resistance, Junction to Am bient Junction and Storage Temperature Symbol PD R JA Max 225.0 1.8 556.0 300 2.4 417 –55 to +150 Units mW mW/°C °C/W mW mW/°C °C/W °C PD R JA TJ, Tstg Electrical Characterics (TA = 25°C unless otherwise noted) Characteristic Reverse Voltage Leakage Current V R = 200 Vdc VR = 200 Vdc, TJ = 150°C Reverse Breakdown Voltage (BR = 100 Adc) Forward Voltage F = 100 mAdc F = 200 mAdc Diode Capacitance (VR = 0, f = 1.0 MHz)) Reverse Recovery Time (I F = IR = 30 mAdc, RL = 100 ) 1.FR–5 = 1.0 X 0.75X 0.062 in. 2.Alumina = 0.4X 0.3X 0.024 in. 99.5% alumina. Symbol IR V(BR) VF CD Trr Min 250 Max 1.0 100 1000 1250 5 50 .044 (1.10) .035 (0.90) Units uAdc Vdc mV pF nS MDS0209006A Page 1 Surface Mount Switching Diode RATING AND CHARACTERISTIC CURVES (BAS21) COMCHIP www.comchip.com.tw 820 Ω +10 V 2k 100 µH 0.1 µF DUT 50 Ω Οutput Pulse Generator 50 Ω Input Sampling Oscilloscope 90% VR Input Signal IR IR(REC) = 1 mA Output Pulse (IF = IR = 10 mA; measured at IR(REC) = 1 mA) IF 0.1 µF tr 10% tp t IF trr t Notes: 1. A 2.0 kΩ variable resistor adjusted for a Forward Current (IF) of 10 mA. Notes: 2. Input pulse is adjusted so IR(peak) is equal to 10 mA. Notes: 3. tp » trr Figure 1. Recovery Time Equivalent Test Circuit 3500 3000 2500 Forward Voltage (mV) 7000 6000 5000 Reverse Current (nA) TA = 155°C TA = –55°C 4000 3000 6 5 4 3 2 1 0 2000 1500 1000 500 0 0.1 0.2 0.5 1 2 5 10 20 50 100 200 TA = 155°C TA = 25°C TA = 25°C TA = –55°C 1 2 5 10 20 50 100 200 300 Forward Current (mA) Reverse Voltage (V) Figure 2. Forward Voltage Figure 3. Reverse Leakage MDS0209006A Page 2