BC547B BC547C ® SMALL SIGNAL NPN TRANSISTORS ■ ■ ■ Type Marking BC547B BC547B BC547C BC547C SILICON EPITAXIAL PLANAR NPN TRANSISTORS TO-92 PACKAGE SUITABLE FOR THROUGH-HOLE PCB ASSEMBLY BC547B - THE PNP COMPLEMENTARY TYPE IS BC557B ■ TO-92 APPLICATIONS ■ WELL SUITABLE FOR TV AND HOME APPLIANCE EQUIPMENT ■ SMALL LOAD SWITCH TRANSISTORS WITH HIGH GAIN AND LOW SATURATION VOLTAGE INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Value Unit V CBO Collector-Base Voltage (I E = 0) 50 V V CEO Collector-Emitter Voltage (I B = 0) 45 V V EBO Emitter-Base Voltage (I C = 0) IC Parameter 6 V Collector Current 100 mA I CM Collector Peak Current 200 mA P tot Total Dissipation at T C = 25 o C 500 mW T stg Storage Temperature Tj Max. Operating Junction Temperature January 2003 -65 to 150 o C 150 o C 1/4 BC547B / BC547C THERMAL DATA R thj-amb • Thermal Resistance Junction-Ambient R thj-Case • Thermal Resistance Junction-Case Max Max o 250 83.3 o C/W C/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol Parameter Test Conditions I CBO Collector Cut-off Current (I E = 0) V CB = 30 V V CB = 30 V I EBO Emitter Cut-off Current (I C = 0) V EB = 5 V V (BR)CEO ∗ Collector-Emitter Breakdown Voltage (I B = 0) Min. Typ. T C = 150 o C I C = 10 mA I C = 10 mA I C = 100 mA I B = 0.5 mA I B = 5 mA 0.09 0.2 V BE(sat) ∗ Base-Emitter Saturation Voltage I C = 10 mA I C = 100 mA I B = 0.5 mA I B = 5 mA 0.7 0.9 V BE(on) ∗ Base-Emitter On Voltage I C = 2 mA I C = 10 mA V CE = 5 V V CE = 5 V h FE DC Current Gain I C = 2 mA for BC547B for BC547C V CE = 5 V 2/4 nA µA 100 nA V Collector-Emitter Saturation Voltage 0.58 0.66 200 420 Transition Frequency I C = 10 mA V CE = 5 V f = 100MHz C CBO Collector-Base Capacitance IE = 0 V CB = 10 V C EBO Emitter-Base Capacitance IC = 0 V EB = 0.5 V NF Noise Figure V CE = 5 V IC = 200 µA f = 1KHz ∆f = 200 Hz R G = 2 KΩ ∗ Pulsed: Pulse duration = 300 µs, duty cycle ≤ 2 % Unit 15 5 45 V CE(sat) ∗ fT Max. f = 1 MHz f = 1 MHz 0.25 0.6 V V V V 0.7 0.77 V V 450 800 100 MHz 1.5 pF 11 pF 2 10 dB BC547B / BC547C TO-92 MECHANICAL DATA mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. 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 3/4 BC547B / BC547C 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 © 2002 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 4/4