Order this document by BF421/D SEMICONDUCTOR TECHNICAL DATA PNP Silicon COLLECTOR 2 3 BASE 1 EMITTER 1 2 MAXIMUM RATINGS Rating Symbol BF421 BF423 Unit Collector - Emitter Voltage VCEO -300 -250 Vdc Collector - Base Voltage VCBO -300 -250 Vdc Emitter - Base Voltage VEBO -5.0 Vdc Collector Current -- Continuous IC -500 mAdc Total Device Dissipation @ TA = 25C Derate above 25C PD 625 5.0 mW mW/C Total Device Dissipation @ TC = 25C Derate above 25C PD 1.5 12 Watts mW/C TJ, Tstg - 55 to +150 C Operating and Storage Junction Temperature Range 3 CASE 29-04, STYLE 14 TO-92 (TO-226AA) THERMAL CHARACTERISTICS Characteristic Symbol Max Unit Thermal Resistance, Junction to Ambient RqJA 200 C/W Thermal Resistance, Junction to Case RqJC 83.3 C/W ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted) Symbol Characteristic Min Max -300 -250 -- -- -300 -250 -- -- -5.0 -5.0 -- -- -- -- -0.01 -- -- -- -100 -- Unit OFF CHARACTERISTICS Collector - Emitter Breakdown Voltage (1) (IC = -1.0 mAdc, IB = 0) Collector - Base Breakdown Voltage (IC = -100 mAdc, IE = 0) Emitter - Base Breakdown Voltage (IE = -100 mAdc, IC = 0) Collector Cutoff Current (VCB = -200 Vdc, IE = 0) Emitter Cutoff Current (VEB = -5.0 Vdc, IC = 0) 1. Pulse Test: Pulse Width v 300 ms; Duty Cycle v 2.0%. V(BR)CEO BF421 BF423 Vdc V(BR)CBO BF421 BF423 Vdc V(BR)EBO BF421 BF423 Vdc mAdc ICBO BF421 BF423 IEBO BF421 BF423 Motorola Small-Signal Transistors, FETs and Diodes Device Data Motorola, Inc. 1996 nAdc 1 ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted) (Continued) Characteristic Symbol Min Max 50 50 -- -- Unit ON CHARACTERISTICS DC Current Gain (IC = -25 mA, VCE = -20 Vdc) hFE BF421 BF423 -- Collector - Emitter Saturation Voltage (IC = -20 mAdc, IB = -2.0 mAdc) VCE(sat) -- -0.5 Vdc Base - Emitter Saturation Voltage (IC = -20 mA, IB = -2.0 mA) VBE(sat) -- -2.0 Vdc fT 60 -- MHz Cre -- 2.8 pF SMALL- SIGNAL CHARACTERISTICS Current - Gain -- Bandwidth Product (IC = -10 mAdc, VCE = -10 Vdc, f = 20 MHz) Common Emitter Feedback Capacitance (VCB = -30 Vdc, IE = 0, f = 1.0 MHz) 2 Motorola Small-Signal Transistors, FETs and Diodes Device Data 150 TJ = +125C VCE = -10 Vdc hFE, DC CURRENT GAIN 100 +25C 70 -55C 50 30 20 15 -1.0 -2.0 -3.0 -5.0 -7.0 -10 -20 -30 -50 -80 -100 IC, COLLECTOR CURRENT (mA) 100 50 C, CAPACITANCE (pF) Cib 20 10 5.0 2.0 Ccb 1.0 -0.1 -0.2 -0.5 -1.0 -2.0 -5.0 -10 -20 -50 -100-200 -500 -1000 VR, REVERSE VOLTAGE (VOLTS) f T, CURRENT-GAIN -- BANDWIDTH PRODUCT (MHz) Figure 1. DC Current Gain 100 TJ = 25C VCE = -20 Vdc 80 60 40 30 20 0 -1.0 Figure 2. Capacitances -2.0 -5.0 -10 -20 IC, COLLECTOR CURRENT (mA) -50 -100 Figure 3. Current-Gain -- Bandwidth Product -1.0 -500 100 s IC, COLLECTOR CURRENT (mA) 1.0 ms V, VOLTAGE (VOLTS) -0.8 VBE @ VCE = -10 V -0.6 -0.4 -0.2 0 -1.0 VCE(sat) @ IC/IB = 10 mA -2.0 -5.0 -10 -20 IC, COLLECTOR CURRENT (mA) -50 -100 Figure 4. "On" Voltages Motorola Small-Signal Transistors, FETs and Diodes Device Data 1.0 s -200 -100 BF423 -50 -20 1.5 WATT THERMAL LIMITATION @ TC = 25C 625 mW THERMAL LIMITATION @ TA = 25C -10 -5.0 -3.0 BF421 BONDING WIRE LIMITATION SECOND BREAKDOWN LIMITATION TJ = 150C -100 -200 -300 -5.0 -10 -20 -30 -50 VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS) Figure 5. Active Region -- Safe Operating Area 3 PACKAGE DIMENSIONS A NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. CONTOUR OF PACKAGE BEYOND DIMENSION R IS UNCONTROLLED. 4. DIMENSION F APPLIES BETWEEN P AND L. DIMENSION D AND J APPLY BETWEEN L AND K MINIMUM. LEAD DIMENSION IS UNCONTROLLED IN P AND BEYOND DIMENSION K MINIMUM. B R P L F SEATING PLANE K DIM A B C D F G H J K L N P R V D J X X G H V C 1 SECTION X-X N N CASE 029-04 (TO-226AA) ISSUE AD INCHES MIN MAX 0.175 0.205 0.170 0.210 0.125 0.165 0.016 0.022 0.016 0.019 0.045 0.055 0.095 0.105 0.015 0.020 0.500 --- 0.250 --- 0.080 0.105 --- 0.100 0.115 --- 0.135 --- MILLIMETERS MIN MAX 4.45 5.20 4.32 5.33 3.18 4.19 0.41 0.55 0.41 0.48 1.15 1.39 2.42 2.66 0.39 0.50 12.70 --- 6.35 --- 2.04 2.66 --- 2.54 2.93 --- 3.43 --- STYLE 14: PIN 1. EMITTER 2. COLLECTOR 3. BASE Motorola reserves the right to make changes without further notice to any products herein. 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