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Prelim.02/00 BFY50 Semelab plc.Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk MEDIUM POWER AMPLIFIERS NPN SILICON PLANAR TRANSISTOR Description The BFY50 is a Silicon Planar Epitaxial NPN Transistor in Jedec TO39 metal case. they are intended for general purpose linear and switching applications V CBO Collector – Base Voltage V CEO Collector – Emitter Voltage V EBO Emitter – Base Voltage I C Collector Current I CM Collector Peak Current P TOT Total Power Dissipation @ T amb £ 25°C @ T case £ 25°C T stg, T j Storage and Operatuing Junction Temperature R j-case Thermal Resistance Junction to Case R j-amb Thermal Resistance Junction to Ambient 80V 35V 6V 1A 1.5A 0.8W 5W –65 to 200°C 35°C / W 218°C / W MECHANICAL DATA Dimensions in mm (inches) TO39 PACKAGE ABSOLUTE MAXIMUM RATINGS (T case = 25°C unless otherwise stated) Pin 1 = Emitter Underside View Pin 2 = BasePin 3 = Collector 0.89 (0.035) max. 0.66 (0.026) 1.14 (0.045) 0.71 (0.028) 0.86 (0.034) 2.54 (0.100) 5.08 (0.200) typ. 45 ̊ 12.70 (0.500) min. 4.19 (0.165) 4.95 (0.195) 8.89 (0.35) 9.40 (0.37) 7.75 (0.305) 8.51 (0.335) 7.75 (0.305) 8.51 (0.335) dia. 1 2 3