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The Powerex Inc. 2N1800 is a high-power NPN silicon transistor designed for demanding industrial applications. It features a single configuration with a maximum collector current of 15 A and a maximum power dissipation of 250 W at 25 °C. The device supports a minimum DC current gain (hFE) of 10 and operates reliably up to a maximum junction temperature of 175 °C. Housed in a through-hole package, this component provides robust performance for linear and switching circuits requiring substantial current handling capabilities.
Verify the specific suffix code on the datasheet to confirm pinout orientation and mounting style. Ensure the selected variant matches the required lead form factor for your PCB or chassis assembly. Cross-reference the manufacturer's latest mechanical drawing to validate hole spacing and terminal dimensions before finalizing procurement.
Select this component when designs require a single NPN transistor capable of handling 15 A with significant heat generation. Evaluate the thermal management strategy carefully, as the 250 W rating assumes adequate heatsinking. Confirm that the gate/base drive circuitry can support the necessary hFE range for stable operation under varying load conditions.
This part belongs to Powerex's lineup of discrete power transistors, distinct from their thyristor and diode families. While sharing the manufacturer's focus on rugged semiconductor solutions, it serves a different function than rectifiers like the R7001805 or SCRs like the FT300DM32. It is specifically engineered for amplification and switching tasks rather than power conversion.
Consult official cross-reference lists for direct equivalents. Verify that any substitute maintains the 15 A current rating and 250 W dissipation limit. Ensure the replacement package matches the original footprint to avoid mechanical integration issues.