1N645 to 649 Silicon Rectifier Diodes DO-35 Glass Package or 1N645-1 to 649-1 Use Advantages Used as a general purpose rectifier in power supplies, or for clipping and steering applications. High performance alternative to small signal diodes where space does not permit use of power rectifiers. May be used in hostile environments where hermeticity and reliability are important i.e. (Military and Aero/Space). MIL-S- 19500/ 240 approvals. Available up to JANTXV-1 level. level screening capability to Source Control Drawings. Features DO-35 Glass Package Six Sigma quality Lead Dia. 0.018-0.022 Humidity proof glass 0.458-0.558 mm Metallurgically bonded Thermally matched system 1.0 Length Dia. No thermal fatigue 25.4 mm 0.06-0.09 0.120-.200 3.05-5.08- mm (M in.) 1.53-2.28 mm High surge capability Sigma Bond plated contacts 100% guaranteed solderability (DO-213AA) SMD MELF commercial (LL) and MIL (UR-1) types available Absolute Maximum Ratings Symbol Value Unit o Power Dissipation at 3/8 from the body, T = 75 C P 600 mWatts L tot o Average Forward Rectified Current at T = 75 C I 400 mAmps L AV o Operating and Storage Temperature Range T -65 to 175 C O&S o Thermal Impedance Z 35 C/W qJX Detail Specifications Breakdown Maximum Forward Maximum Maximum Typical Reverse Voltage Average Rectified Current Voltage Reverse Leakage Current Surge Junction Voltage (MIN.) Drop Current Capacitance 100A (I)(I)(V ) I = 400mA (I ) V (I ) -12V O O F F R R FSM (V)(B ) 25 C 150 C (MIN.) (MAX.) 25 C 100 C (NOTE 1) (C ) R V O Type Volts Volts Amps Amps Volts A A Amps pF 1N645,-1 225 275 0.4 0.15 1.0 0.2 15 3 9 1N646,-1 300 360 0.4 0.15 1.0 0.2 15 3 9 1N647,-1 400 480 0.4 0.15 1.0 0.2 20 3 9 1N648,-1 500 600 0.4 0.15 1.0 0.2 20 3 9 1N649,-1 600 720 0.4 0.15 1.0 0.2 25 3 9 Note 1: Surge Current T = +25 C to +150 C, for 1 Second A For MELF DO-213AA surface mount package, replace1 prefix withL for commercial. 6 Lake Street - Lawrence, MA 01841 Tel: 978-681-0392 - Fax: 978-681-91351N645-1 Silicon Rectifier Diodes DO-35 Glass Package thru 1N649-1 DO-35 DERATING (175 C Tj) DO -35 POWER DER ATING CURVE 500 400 300 200 100 0 0 20 40 60 80 100 120 140 160 180 T em perature ( 3/8 from body) C 6 Lake Street - Lawrence, MA 01841 Tel: 978-681-0392 - Fax: 978-681-9135 Power Dissipated (MilliWatts)