1N4450 HIGH SPEED SWITCHING DIODE DO - 35 Glass (DO-204AH) FEATURES : • High switching speed: max. 4 ns • Reverse voltage:max. 30 V • Peak reverse voltage:max. 40 V • Pb / RoHS Free 1.00 (25.4) min. 0.079(2.0 )max. 0.150 (3.8) max. Cathode Mark 1.00 (25.4) min. 0.020 (0.52)max. MECHANICAL DATA : Case: DO-35 Glass Case Weight: approx. 0.13g Dimensions in inches and ( millimeters ) Maximum Ratings and Thermal Characteristics ( Ta = 25 °C) Parameter Symbol Value Unit Maximum Peak Reverse Voltage VRM 40 V Maximum Reverse Voltage VR 30 V Maximum Forward DC Current IF 250 mA Maximum Average Forward Current IF(AV) 200 mA Maximum Surge Forward Current at tp = 1 µs IFSM 4 A Power Dissipation PD 500 mW TJ 200 °C TSTG -65 to + 200 °C Maximum Junction Temperature Storage Temperature Range Electrical Characteristics Parameter Reverse Current ( Ta = 25 °C) Symbol IR Forward Voltage VF Test Condition VR = 30 V VR = 30 V , Tj = 150 °C Diode Capacitance Reverse Recovery T Page 1 of 2 V(BR)R Cd Trr Typ. Max. Unit - - 50 nA μA - - 50 IF = 0.1 mA 0.42 - 0.54 IF = 1.0 mA 0.52 - 0.64 IF = 10 mA 0.64 - 0.72 IF = 50 mA 0.80 - 0.92 IF = 200 mA Reverse Breakdown Voltage Min. IR = 5 μA (pulsed) f = 1MHz ; VR = 0 IF = 10 mA ,V R = 6 V, RL = 100 Ω V - - 1.00 40 - - V - - 4 pF - - 4 ns Rev. 01 : May 9, 2006 RATING AND CHARACTERISTIC CURVES ( 1N4450 ) FIG1. - FORWARD CURRENT VS. FIG.2 - REVERSE CURRENT VS. FORWARD VOLTAGE JUNCTION TEMPERATURE 10000 REVERSE CURRENT, IR (nA) FORWARD CURRENT, I F (mA) 1000 100 TJ = 125 10 TJ = 25 °C 1.0 f = 1 MHz Ta = 25 °C TJ = 75 °C 1000 TJ = 50 °C 100 TJ = 25 °C 10 1.0 0.1 0 0.2 0.4 0.6 0.8 1.0 1.2 0 FORWARD VOLTAGE , V F (V) f = 1 MHz Ta = 25 °C 2.0 1.5 1.0 0.5 0 REVERSE VOLTAGE , VR (V) Page 2 of 2 80 100 FORWARD CURRENT REVERSE RECOVERY TIME, Trr (ns) DIODE CAPACITANCE, Cd (pF) 2.5 20 60 FIG. 4 - REVERSE RECOVERY TIME VS. TERMINALS VS. REVERSE VOLTAGE 10 40 REVERSE VOLTAGE , VR (V) FIG3. - CAPACITANCE BETWEEN 0 20 30 5 VR = 6 V 4 3 2 1 0 0 4 8 12 16 20 REVERSE VOLTAGE , VR (V) Rev. 01 : May 9, 2006