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NJVBD437TG is listed in the Single Bipolar Transistors range at ChipApex. The manufacturer field lists onsemi. Its product description is BIP C77 NPN 4A 45V. Review the specifications below when checking this part for your BOM.
The NJVBD437TG is an NPN silicon epitaxial-base power transistor manufactured by onsemi. It belongs to the BD437 series and is housed in a TO-225 package with three pins for through-hole mounting. The device supports a maximum continuous collector current of 4 A and a collector-emitter voltage (VCEO) of 45 V. Key electrical characteristics include a collector-base voltage (VCBO) of 45 V, an emitter-base voltage (VEBO) of 5 V, and a power dissipation rating of 36 W. The saturation voltage (VCE(sat)) is specified at 800 mV, with a minimum DC current gain (hFE) of 30. The transition frequency (fT) is rated at 3 MHz, and it operates within a temperature range of -55°C to +150°C.
Verify the specific suffix 'G' or 'T' against the manufacturer's official datasheet to confirm packaging details and compliance status. Ensure the component matches the required TO-225 form factor and pinout configuration for your design. Cross-reference the part number with authorized distributors to validate authenticity and avoid counterfeit components.
Select this component when a single NPN power transistor with 4 A current handling and 45 V breakdown is required. Consider the TO-225 package constraints for board space and thermal management. Compare the 3 MHz transition frequency against application speed requirements. Verify that the 36 W power dissipation rating aligns with the system's thermal design capabilities.
This part is part of the BD437 family of complementary silicon power transistors. It serves as the NPN counterpart to PNP types such as the BD438. The series is engineered for reliability in consumer electronics and automotive audio systems, providing a balance of current capacity and voltage tolerance for standard power control tasks.
Direct substitutes within the same family include the BD437G. Complementary PNP equivalents are available as BD438 or BD438G. Verify pin compatibility and thermal resistance values before swapping with other manufacturers' parts.
The maximum collector-emitter voltage (VCEO) is 45 V.
It has a transition frequency (fT) of 3 MHz, making it suitable for medium-speed switching but not ultra-high-frequency applications.
The NJVBD437TG is designed for through-hole installation in a TO-225 package.
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