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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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13th Jan 2022, 12:55 am | #1 |
Dekatron
Join Date: Apr 2009
Location: Oxfordshire, UK.
Posts: 4,935
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2N2079A Ge Power Transistor (170W ?)
Following on from the thread about AZD11, I just dug a pair of 2N2079A out of my junk box. The specs are;
Type; Motorola 2N2079A Package: TO36 Material of Transistor: Ge Polarity: PNP Maximum Collector Power Dissipation (Pc): 170 W Maximum Collector-Base Voltage |Vcb|: 80 V Maximum Collector-Emitter Voltage |Vce|: 65 V Maximum Emitter-Base Voltage |Veb|: 40 V Maximum Collector Current |Ic max|: 15 A Max. Operating Junction Temperature (Tj): 110 °C Transition Frequency (ft): 0.05 MHz Forward Current Transfer Ratio (hFE), MIN: 35. They are on a custom-made heat sink. I think they came out of a fairly old laboratory oven? Do these qualify as "hens teeth"? B
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