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10 x MPSA42 NPN High Voltage Transistor TO-92 300V 500mA Silicon UK

Description and Specification

These MPSA42 NPN High Voltage Transistors are designed for high-voltage, low-current switching and amplification applications, housed in a compact TO-92 through hole package.

With a collector-emitter voltage rating up to 300V and collector current of 500mA, the MPSA42 is ideal for driving nixie tubes, neon lamps, and other high-voltage control applications.

• Transistor Type: NPN
• Package: TO-92 (Through Hole)
• Collector-Emitter Voltage (Vce): 300V
• Collector-Base Voltage (Vcb): 300V
• Emitter-Base Voltage (Veb): 6V
• Collector Current (Ic): 500mA max
• Power Dissipation: 625mW
• Transition Frequency (ft): 50MHz
• Material: Silicon (epitaxial planar)

What’s Included:

• 10 x MPSA42 NPN High Voltage Transistors (TO-92)

Great For:

• High-voltage switching circuits
• Lamp and LED drivers
• Nixie and neon tube projects
• Signal amplification in HV environments
• General-purpose HV electronics prototyping

Usage Tips:

• Ensure correct pinout: E-B-C (Flat face forward)
• Always observe safe handling practices for high voltage components
• Use with appropriate base resistors and heatsinking if required

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