BC177 BC178 BC179 MECHANICAL DATA Dimensions in mm (inches) GENERAL PURPOSE SMALL SIGNAL PNP BIPOLAR TRANSISTOR 5 .8 4 (0 .2 3 0 ) 5 .3 1 (0 .2 0 9 ) 4 .9 5 (0 .1 9 5 ) 4 .5 2 (0 .1 7 8 ) 5 .3 3 (0 .2 1 0 ) 4 .3 2 (0 .1 7 0 ) APPLICATIONS ) ) 0 0 1 7 1 . 0 0 ( ( 3 2 3 3 . . 5 4 1 2 .7 (0 .5 0 0 ) m in . 2 . ) 0 0 5 . . 0 .4 8 (0 .0 1 9 ) 0 .4 1 (0 .0 1 6 ) d ia . n i 0 ( m 7 . 2 1 2 .5 4 (0 .1 0 0 ) N o m . The BC 177, BC 178 & BC 179 are silicon epitaxial planar PNP transistors in TO-18 metal case. They are suitablefor use in driver audio stages, low noise input audio stages and as low power, high gain general purpose transistors. FEATURES • SILICON NPN ! • HERMETICALLY SEALED TO18 • SCREENING OPTIONS AVAILABLE TO–18 METAL PACKAGE Underside View PIN 1 – Emitter PIN 2 – Base PIN 3 – Collector ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise stated) BC177 BC178 BC179 VCBO Collector – Base Continuous Voltage -50V -30V -25V VCEO Collector – Emitter Continuous Voltage With Zero Base Current -45V -25V -20V VCES Collector – Emitter Continuous Voltage With Base Shortcircuited to Emitter -50V -30V -25V VEBO Emitter – Base Continuous Voltage Reverse Voltage IC Continuous Collector Current -0.1A PD Power Device Dissipation @ TA = 25°C 0.3W Derate above 25°C PD Power Device Dissipation @ TC = 25°C, Derate above 25°C Tj, Tstg Operating and Storage Junction to Case -5V 500W/°C 0.75W 200W/°C -65 to +175°C Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk Document Number 5760 Issue 1 BC177 BC178 BC179 ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise stated) Parameter ICES Collector-Emitter Leakage Current Test Conditions VCE = -20V IC = -10µA V(BR)CBO V(BR)CEO V(BR)EBO hFE Emitter Breakdown Voltage DC Current Gain VCE(sat) Collector – Emitter Saturation Voltage VBE(sat) Base – Emitter Saturation Voltage VBE(on) Base – Emitter on Voltage fT Transition Frequency NF Ccbo Noise Figure Collector Base Capacitance Typ. Max. Unit VBE = 0 -100 nA Tamb = 150°C -10 µA BC177 -50 BC178 -30 BC179 -25 IC = -2mA BC177 -45 IE = 0 BC178 -25 BC179 -20 IE = -10µA IC = 0 -5 VCE = -5V BC177A 125 260 IC = -2mA BC177B 240 500 f = 1kHz BC178A 125 260 BC178B 240 500 BC179A 125 260 BC179B 240 500 Collector Base Breakdown Voltage Collector Emitter Breakdown Voltage Min. V V V IB = -0.5mA IC = -10mA -0.075 IB = -5mA IC = -100mA -0.2 IB = -0.5mA IC = -10mA -0.72 IB = -5mA IC = -100mA -0.86 VCE = -5V IC = -2mA -5V VCE = -5V IC = -10mA f = 100MHz -0.55 -0.64 -0.25 -0.8 -0.75 200 — V V V MHz VCE = -5V BC177 2 10 f = 1kHz BC178 2 10 IC = -0.2mA BC179 1.2 4 IC = -0.2mA VCB = -10V 5.0 dB pF Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk Document Number 5760 Issue 1