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| (R) BF421 SMALL SIGNAL PNP TRANSISTOR PRELIMINARY DATA Ordering Code BF421 BF421-AP s Marking BF421 BF421 Package / Shipment TO-92 / Bulk TO-92 / Ammopack s s SILICON EPITAXIAL PLANAR PNP HIGH VOLTAGE TRANSISTOR TO-92 PACKAGE SUITABLE FOR THROUGH-HOLE PCB ASSEMBLY THE NPN COMPLEMENTARY TYPE IS BF420 TO-92 Bulk TO-92 Ammopack APPLICATIONS s VIDEO AMPLIFIER CIRCUITS (RGB CATHODE CURRENT CONTROL) s TELEPHONE WIRELINE INTERFACE (HOOK SWITCHES, DIALER CIRCUITS) INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol V CBO V CEO V EBO IC I CM P tot T stg Tj Parameter Collector-Base Voltage (I E = 0) Collector-Emitter Voltage (I B = 0) Emitter-Base Voltage (I C = 0) Collector Current Collector Peak Current (t p < 5ms) Total Dissipation at T C = 25 C Storage Temperature Max. Operating Junction Temperature o Value -300 -300 -5 -500 -600 830 -65 to 150 150 Unit V V V mA mA mW o o C C February 2003 1/5 BF421 THERMAL DATA R thj-amb * Thermal Resistance Junction-Ambient R thj-Case * Thermal Resistance Junction-Case Max Max 150 50 o o C/W C/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol I CBO Parameter Collector Cut-off Current (I E = 0) Emitter Cut-off Current (I C = 0) Test Conditions V CB = -200 V V CB = -200 V V CB = -300 V V EB = -5 V I C = -10 mA -300 T C = 150 o C Min. Typ. Max. -10 -10 -100 -50 Unit nA A A nA V I EBO V (BR)CEO Collector-Emitter Breakdown Voltage (I B = 0) V (BR)CBO Collector-Base Breakdown Voltage (I E = 0) Emitter-Base Breakdown Voltage (I C = 0) Collector-Emitter Saturation Voltage Base-Emitter Saturation Voltage DC Current Gain Transition Frequency I C = -10 A -300 V V (BR)EBO I E = -100 A -5 V V CE(sat) V BE(sat) h FE fT I C = -30 mA I C = -30 mA I C = -25 mA I B = -5 mA I B = -5 mA V CE = -20 V V CB = -30 V f = 1MHz 50 60 -0.6 -1.2 V V I C = -10 mA V CE = -10 V f =100MHz MHz 1.6 pF C RE Reverse Capacitance IE = 0 Pulsed: Pulse duration 300 s, duty cycle 2 % 2/5 BF421 TO-92 MECHANICAL DATA mm MIN. A b D E e e1 L R S1 W V 4.32 0.36 4.45 3.30 2.41 1.14 12.70 2.16 1.14 0.41 4 degree TYP. MAX. 4.95 0.51 4.95 3.94 2.67 1.40 15.49 2.41 1.52 0.56 6 degree MIN. 0.170 0.014 0.175 0.130 0.095 0.045 0.500 0.085 0.045 0.016 4 degree inch TYP. MAX. 0.195 0.020 0.194 0.155 0.105 0.055 0.609 0.094 0.059 0.022 6 degree DIM. 3/5 BF421 TO-92 AMMOPACK SHIPMENT (Suffix"-AP") MECHANICAL DATA DIM. A1 T T1 T2 d P0 P2 F1,F2 delta H W W0 W1 W2 H H0 H1 D0 t L I1 delta P mm TYP. inch TYP. MIN. 12.50 5.65 2.44 -2.00 17.50 5.70 8.50 18.50 15.50 3.80 12.70 6.35 2.54 18.00 6.00 9.00 16.00 4.00 MAX. 4.80 3.80 1.60 2.30 0.48 12.90 7.05 2.94 2.00 19.00 6.30 9.25 0.50 20.50 16.50 25.00 4.20 0.90 11.00 1.00 MIN. 0.492 0.222 0.096 -0.079 0.689 0.224 0.335 0.728 0.610 0.150 0.500 0.250 0.100 0.709 0.236 0.354 0.630 0.157 MAX. 0.189 0.150 0.063 0.091 0.019 0.508 0.278 0.116 0.079 0.748 0.248 0.364 0.020 0.807 0.650 0.984 0.165 0.035 0.433 0.039 3.00 -1.00 0.118 -0.039 4/5 BF421 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a trademark of STMicroelectronics (c) 2003 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com 5/5 |
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