onsemi 4 A NPN Transistor 45 V dc 3-Pin TO-225 BD437G

onsemi BD437G is a plastic medium-power NPN transistor designed for amplifier and switching applications with robust electrical characteristics. It supports a maximum DC collector current of 4 amps and can handle a maximum collector-emitter voltage of 45 volts DC. The device is packaged in a 3-Pin TO-225 through-hole configuration which facilitates easy mounting on printed circuit boards.

This transistor exhibits a minimum DC current gain (hFE) of 30 and a maximum power dissipation of 36 watts, making it suitable for various power amplification tasks. Its maximum transition frequency is rated at 1 MHz, rendering it appropriate for moderate frequency switching applications in industrial and electronic circuits.

Operating reliably at temperatures up to 150°C, the BD437G transistor is ideal for industrial, manufacturing, power supply, and electronic amplifier setups. The compact physical dimensions, with a height of 27.5 mm, width of 3.45 mm, and length of 8.3 mm, ensure it fits small to medium scale printed circuit boards and electronic projects.

Additional features include a maximum collector-base voltage and maximum emitter-base voltage rating of 45 V dc and 5 V dc respectively. This robust configuration supports sustained performance in demanding environments.

Supports a maximum DC collector current of 4 amps. Maximum collector-emitter voltage rating of 45 volts DC. Minimum DC current gain of 30 for efficient signal amplification. Power dissipation rated at 36 watts for medium power applications.

Maximum transition frequency of 1 MHz suitable for switching. TO-225 package with a through-hole mount style. Compact dimensions: Height 27.5 mm, Width 3.45 mm, Length 8.3 mm. Maximum operating temperature of 150°C for industrial usage.

The onsemi BD437G transistor comes from a series including complementary types BD438 and BD442 providing flexibility in circuit design. It is manufactured adhering to standard industrial quality and testing procedures in China.

This product is widely used in electronics manufacturing, industrial automation, power supply regulation, and amplification circuits. It is suitable for professional electronic engineers and technicians requiring reliable transistor components.

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