UN2221 Datasheet, Equivalent, Cross Reference Search
Type Designator: UN2221
SMD Transistor Code: 9A
Material of Transistor: Si
Polarity: Pre-Biased-NPN
Built in Bias Resistor R1 = 2.2 kOhm
Built in Bias Resistor R2 = 2.2 kOhm
Typical Resistor Ratio R1/R2 = 1
Maximum Collector Power Dissipation (Pc): 0.2
W
Maximum Collector-Base Voltage |Vcb|: 50
V
Maximum Collector-Emitter Voltage |Vce|: 50
V
Maximum Emitter-Base Voltage |Veb|: 6
V
Maximum Collector Current |Ic max|: 0.5
A
Max. Operating Junction Temperature (Tj): 150
°C
Transition Frequency (ft): 200
MHz
Forward Current Transfer Ratio (hFE), MIN: 40
Noise Figure, dB: -
Package: SOT23
SC59
UN2221 Transistor Equivalent Substitute - Cross-Reference Search
UN2221 Datasheet (PDF)
un2221 un2222 un2223 un2224.pdf
Transistors with built-in ResistorUNR222x Series (UN222x Series)Silicon NPN epitaxial planar typeUnit: mmFor digital circuits0.40+0.100.050.16+0.100.063 Features Costs can be reduced through downsizing of the equipment andreduction of the number of parts.1 2 Mini type package allowing easy automatic insertion through tape(0.95) (0.95)packing and ma
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