1N6638, 1N6642-1N6643 SWITCHING RECTIFIERS High-reliability discrete products and engineering services since 1977 FEATURES Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number. Available as non-RoHS (Sn/Pb plating), standard, and as RoHS by adding “-PBF” suffix. MAXIMUM RATINGS (TA = 25°C unless otherwise specified) Part number 1N6638 1N6642 1N6643 Reverse voltage VR (V) Working peak reverse voltage VRWM (V) Operating current IO (mA) 150 100 75 125 75 50 300 300 300 Peak forward surge current IFSM (Note 1) (Note 2) RӨJL L=.375” (°C/W) TOP Tstg (°C) 2.5 2.5 2.5 160 160 160 -65 to +175 (A) Note 1: At maximum end cap temperature = 110°C for US suffix types. Derate at 4.6 mA/°C above end cap temperature = 110°C. Derate axial types at 3.0 mA/°C above ambient temperature = 25°C. Note 2: Test pulse = 8.3ms, half sine wave. ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified) Part number Maximum DC reverse current IR Maximum forward voltage VF@IF VR=20V V@mA VR=VRWM VR=20V TA=150°C VR=VRWM TA=150°C nA µA µA µA 1N6638 0.8V @ 10mA 1.1V @ 200mA 25 0.5 40 100 1N6642 1.0V @ 10mA 1.2V @ 100mA 25 0.5 50 100 1N6643 1.0V @ 10mA 1.2V @ 100mA 50 0.5 75 160 Reverse recovery time trr Note 1 Maximum forward recovery voltage and time IF = 50mA, tr = 1ns Part number Vfr 1N6638 1N6642 1N6643 tfr Maximum junction capacitance f = 1MHz Vsig = 50mV (p-p) VR=0V VR=1.5V ns V ns pF pF 4.5 5.0 6.0 5.0 5.0 5.0 20 20 20 2.0 5.0 5.0 1.4 2.8 2.8 Note 1: Reverse Recovery Time Test Conditions: IF = IR = 10mAdc, iR(REC) = 1.0mAdc, C = 3pF.RL = 100ohms Rev. 20121211 High-reliability discrete products and engineering services since 1977 1N6638, 1N6642-1N6643 SWITCHING RECTIFIERS MECHANICAL CHARACTERISTICS Case DO-35 Marking Body painted, alpha-numeric Polarity Cathode band Rev. 20121211 High-reliability discrete products and engineering services since 1977 1N6638, 1N6642-1N6643 SWITCHING RECTIFIERS Rev. 20121211