Part number : KC237 ( = BC237 )

Functions : 50V, NPN Silicon NPN Transistor

Package:  TO 92 type

Manufactures : Tesla

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Description

The NPN Bipolar Transistor is designed for use in linear and switching applications. The device is housed in the TO-92 package, which is designed for medium power applications.

Applications

1. ESD Protection
2. Polarity Reversal Protection
3. Data Line Protection
4. Inductive Load Protection
5. Steering Logic

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KC237 Datasheet

 

  

Part number : KC149

Functions : 20V 0.1A NPN Transistor

Package: SOT25 type

Manufactures : Tesla

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Description

1. Polarity: NPN
2. Maximum Collector Power Dissipation (Pc): 0.2 W
3. Maximum Collector-Base Voltage |Vcb|: 20 V
4. Maximum Collector-Emitter Voltage |Vce|: 20 V
5. Maximum Emitter-Base Voltage |Veb|: 5 V
6. Maximum Collector Current |Ic max|: 0.1 A
7. Max. Operating Junction Temperature (Tj): 150 °C
6. Transition Frequency (ft): 150 MHz
7. Collector Capacitance (Cc): 4.5 pF
8. Forward Current Transfer Ratio (hFE), MIN: 240

 

Application circuit

 

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KC149 Datasheet