BUY21A Datasheet and Replacement
Type Designator: BUY21A
Material of Transistor: Si
Polarity: NPN
Maximum Collector Power Dissipation (Pc): 85 W
Maximum Collector-Base Voltage |Vcb|: 400 V
Maximum Collector-Emitter Voltage |Vce|: 230 V
Maximum Collector Current |Ic max|: 7 A
Max. Operating Junction Temperature (Tj): 200 °C
Transition Frequency (ft): 15 MHz
Collector Capacitance (Cc): 200 pF
Forward Current Transfer Ratio (hFE), MIN: 20
Noise Figure, dB: -
Package: TO3
BUY21A Datasheet (PDF)
buy21.pdf

isc Silicon NPN Power Transistor BUY21DESCRIPTIONCollector-Emitter Breakdown Voltage-:V = 180V(Min.)(BR)CEOExcellent Safe Operating AreaHigh Speed SwitchingMinimum Lot-to-Lot variations for robust deviceperformance and reliable operationAPPLICATIONSDesigned for use in switching-control amplifiers, powergates,switching regulators, converters, and inverter.ABSOLU
Datasheet: BUY14 , BUY16 , BUY17 , BUY18 , BUY18S , BUY19 , BUY20 , BUY21 , S8550 , BUY22 , BUY23 , BUY23A , BUY23B , BUY24 , BUY26 , BUY27 , BUY28 .
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