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BC546TAR is listed in the Single Bipolar Transistors range at ChipApex. The manufacturer field lists onsemi. Its product description is TRANS NPN 65V 0.1A TO-92-3. Review the specifications below when checking this part for your BOM.
The onsemi BC546TAR is an NPN epitaxial silicon transistor housed in a TO-92-3 through-hole package. It features a maximum collector-emitter voltage of 65 V and a continuous collector current rating of 100 mA. The device supports a transition frequency of 300 MHz and dissipates up to 500 mW of power. DC current gain ranges from 110 to 800 at 2 mA, with a collector cutoff current limited to 15 nA.
Verify the specific manufacturer designation, as distribution records indicate this part number may be associated with onsemi or legacy Fairchild Semiconductor sources. Confirm RoHS compliance status and lead finish (e.g., tin or tin-silver) against the specific shipment datasheet. Ensure the TO-92-3 package orientation matches circuit board layout requirements before finalizing procurement orders.
Select this component when a high-voltage NPN transistor is required within a standard TO-92 footprint. The 65 V rating exceeds common low-voltage alternatives like the BC548. Verify that the minimum hFE of 110 meets the base drive requirements of the target circuit. Consider thermal management if operating near the 500 mW power limit in enclosed environments.
This device belongs to the BC546–BC550 series of general-purpose NPN transistors. It serves as the high-voltage variant within this family, complementing lower voltage models such as the BC548 (30 V). The series offers complementary PNP devices (BC556–BC560) for push-pull configurations.
Publicly confirmed substitute part numbers are not available in the provided documentation.
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