BF420 STMICROELECTRONICS | Alldatasheet

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SMALL SIGNAL NPN TRANSISTOR PRELIMINARY DATA ■ SILICON EPITAXIAL PLANAR NPN HIGH VOLTAGE TRANSISTOR ■ TO-92 PACKAGE SUITABLE FOR THROUGH-HOLE PCB ASSEMBLY ■ THE PNP COMPLEMENTARY TYPE IS BF421

APPLICATIONS

■ VIDEO AMPLIFIER CIRCUITS (RGB CATHODE CURRENT CONTROL) ■ TELEPHONE WIRELINE INTERFACE (HOOK SWITCHES, DIALER CIRCUITS) INTERNAL SCHEMATIC DIAGRAM February 2003 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V CBO Collector-Base Voltage (IE = 0) 300 V V CEO Collector-Emitter Voltage (IB = 0) 300 V V EBO Emitter-Base Voltage (IC = 0) 5 V IC Collector Current 500 mA ICM Collector Peak Current (tp < 5 ms) 600 mA P tot Total Dissipation at TC = 25 oC 830 mW Tstg Storage Temperature -65 to 150 oC Tj Max. Operating Junction Temperature 150 oC Ordering Code Marking Package / Shipment BF420 BF420 TO-92 / Bulk BF420-AP BF420 TO-92 / Ammopack TO-92 Bulk TO-92 Ammopack

R thj-amb • R thj-Case • Thermal Resistance Junction-Ambient Max Thermal Resistance Junction-Case Max 150 oC/W oC/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit ICBO Collector Cut-off Current (IE = 0) V CB = 200 V V CB = 200 V TC = 150 oC V CB = 300 V 100 nA µ A µ A IEBO Emitter Cut-off Current (IC = 0) V EB = 5 V 50 nA V (BR)CEO ∗ Collector-Emitter Breakdown Voltage (IB = 0) IC = 10 mA 300 V V (BR)CBO Collector-Base Breakdown Voltage (IE = 0) IC = 100 µ A 300 V V (BR)EBO Emitter-Base Breakdown Voltage (IC = 0) IE = 100 µ A 5V V CE(sat)∗ Collector-Emitter Saturation Voltage IC = 30 mA IB = 5 mA 0.6 V V BE(sat)∗ Base-Emitter Saturation Voltage IC = 30 mA IB = 5 mA 1.2 V hFE ∗ DC Current Gain I C = 25 mA VCE = 20 V 50 fT Transition Frequency I C = 10 mA VCE = 10 V f =20 MHz 60 MHz C CBO Collector-Base Capacitance IE = 0 VCB = 10 V f = 1MHz 6 pF C EBO Emitter-Base Capacitance IC = 0 VEB = 2 V f = 1MHz 22 pF ∗ Pulsed: Pulse duration = 300 µs, duty cycle ≤ 2 % BF420

DIM. mm inch A 4.32 4.95 0.170 0.195 b 0.36 0.51 0.014 0.020 D 4.45 4.95 0.175 0.194 E 3.30 3.94 0.130 0.155 e 2.41 2.67 0.095 0.105 e1 1.14 1.40 0.045 0.055 L 12.70 15.49 0.500 0.609 R 2.16 2.41 0.085 0.094 S1 1.14 1.52 0.045 0.059 W 0.41 0.56 0.016 0.022 V 4 degree 6 degree 4 degree 6 degree TO-92 MECHANICAL DATA BF420

DIM. mm inch A1 4.80 0.189 T 3.80 0.150 T1 1.60 0.063 T2 2.30 0.091 d 0.48 0.019 delta H -2.00 2.00 -0.079 0.079 W2 0.50 0.020 H 18.50 20.50 0.728 0.807 H1 25.00 0.984 t 0.90 0.035 L 11.00 0.433 I1 3.00 0.118 delta P -1.00 1.00 -0.039 0.039 TO-92 AMMOPACK SHIPMENT (Suffix"-AP") MECHANICAL DATA BF420

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 © 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 BF420