BC857BW (R) SMALL SIGNAL PNP TRANSISTOR PRELIMINARY DATA Type Marking BC857BW 3FW SILICON EPITAXIAL PLANAR PNP TRANSISTOR MINIATURE SOT-323 PLASTIC PACKAGE FOR SURFACE MOUNTING CIRCUITS TAPE AND REEL PACKING THE NPN COMPLEMENTARY TYPE IS BC847BW APPLICATIONS WELL SUITABLE FOR PORTABLE EQUIPMENT SMALL LOAD SWITCH TRANSISTOR WITH HIGH GAIN AND LOW SATURATION VOLTAGE SOT-323 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter 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) -5 V Collector Current -100 mA IC I CM Collector Peak Current -200 mA P tot Total Dissipation at T C = 25 o C 200 mW T stg Storage Temperature Tj June 2002 Max. Operating Junction Temperature -65 to 150 o C 150 o C 1/4 BC857BW THERMAL DATA R thj-amb * Thermal Resistance Junction-Ambient Max o 625 C/W * Device mounted on a PCB area of 1 cm . 2 ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit -1 -15 -5 nA A -100 nA 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 Collector-Base Breakdown Voltage (I E = 0) I C = -10 A -50 V I C = -2 mA -45 V -5 V V (BR)CBO V (BR)CEO Collector-Emitter Breakdown Voltage (I B = 0) T C = 150 o C V (BR)EBO Emitter-Base Breakdown Voltage (I C = 0) I E = -10 A V CE(sat) Collector-Emitter Saturation Voltage I C = -10 mA I C = -100 mA I B = -0.5 mA I B = -5 mA -0.07 -0.25 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 -0.85 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 Transition Frequency I C = -10 mA V CE = -5 V f = 100MHz Collector-Base Capacitance IE = 0 Noise Figure V CE = -5 V I C = -0.2 mA f = 200 Hz R G = 2 K fT C CBO NF Pulsed: Pulse duration = 300 s, duty cycle 2 % 2/4 V CE = -5 V V CB = -10 V -0.6 -0.65 220 f = 1 MHz f = 1KHz -0.3 -0.65 V V V V -0.75 -0.82 V V 475 100 MHz 4.5 2 pF 10 dB BC857BW SOT-323 MECHANICAL DATA mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 0.8 1.1 0.031 0.043 A1 0 0.1 0 0.003 b 0.25 0.4 0.009 0.015 c 0.1 0.26 0.004 0.010 D 1.8 2.0 2.2 0.070 0.078 0.086 E 1.15 1.25 1.35 0.045 0.049 0.053 e 0.65 0.025 H 1.8 2.1 2.4 0.070 0.082 0.094 L 0.1 0.2 0.3 0.004 0.007 0.011 Q 0 10o 0 10o FOOT PRINT SOT-323 3/4 BC857BW 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) 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