1N6638, 1N6642, 1N6643 Axial Leaded Hermetically Sealed Switching Diodes POWER DISCRETES Description Features u u u u Quick reference data VBR trr Io VF = 75 - 150V = 4.5 - 6.0ns = 300mA, Ta = 75C = 1.1 - 1.2V Low reverse leakage current Hermetically sealed in fused metal oxide Good thermal shock resistance Low forward voltage drop These products are qualified to MIL-PRF-19500/578. They can be supplied fully released as JAN, JANTX and JANTXV. Absolute Maximum Ratings Electrical specifications @ TA = 25C unless otherwise specified. Symbol 1N 6638 1N 6642 1N 6643 Units Breakdown Voltage V BR 150 100 75 V Working Reverse Voltage VRWM 125 75 50 V Operating Current @ 75 C , lead length 0.375" IO 300 300 300 mA Non-Repetitive Surge Current (tp = 8.3mS, @ 25 C) IFSM 2.5 2.5 2.5 Storage Temperature Range TSTG Revision: September 2012 A -65 to +175 1 C www.semtech.com 1N6638, 1N6642, 1N6643 POWER DISCRETES Electrical Specifications Symbol 1N 6638 1N 6642 1N 6643 U nits Forward Voltage D rop max. Tj= 25 C V F1 0.8 @ IF = 10mA 0.8 @ IF = 10mA 0.8 @ IF = 10mA V Forward Voltage D rop max. Tj= 25 C V F2 1.1 @ IF = 200mA 1.2 @ IF = 100mA 1.2 @ IF = 100mA V Reverse C urrent max IR1@ VR = 20V IR2@ VR = VRWM IR3@ VR = 20V, TA = 150 C IR4@ VR = VRWM, TA = 150 C IR1 IR2 IR3 IR4 35 500 50 100 25 500 50 100 50 500 75 100 nA nA uA uA Foward Recovery Ti me max. IF = 200mA tfr 20 20 20 ns Reverse Recovery Ti me max. IRM = IF = 10mA trr 4.5 5.0 6.0 ns C T1 2.5 5.0 5.0 pF Juncti on C apaci tance typ. V R = 0V Thermal Characteristics Symbol Thermal Resistance-Junction to Lead Lead length = 0.375" 2012 Semtech Corporation 1N 6638 1N 6642 150 R(THETA) JL 2 1N 6643 Units C/W www.semtech.com 1N6638, 1N6642, 1N6643 POWER DISCRETES Ordering Information Part Number 1N6638 1N6642 1N6643 Description Axial leaded hermetical y sealed(1) Note: (1) Available in bulk and tape and reel packaging. Please consult factory for quantities. Outline Drawing D imensions Inches D IMN Millimeters MIN MAX MIN MAX A 0.056 0.08 1.42 2.03 B 1.0 1.5 25.4 38.1 C 0.13 0.18 3.3 4.57 D 0.018 0.022 0.46 0.56 Contact Information Semtech Corporation Power Discretes Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 2012 Semtech Corporation 3 www.semtech.com