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The onsemi 2N5551_J18Z is an NPN silicon general-purpose amplifier transistor designed for high-voltage applications. It operates within a collector-emitter voltage of 160 V and supports a continuous collector current of 600 mA. The device features a DC current gain (hFE) ranging from 80 to 250 at IC = 10 mA, with a transition frequency (fT) of 100 MHz. Thermal characteristics include a maximum power dissipation of 625 mW and a junction-to-ambient thermal resistance of 200 °C/W. It functions reliably across a temperature range of -55 °C to +150 °C.
Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and shipping configuration. Check the latest datasheet revision history for discontinuation status or parameter updates. Ensure compliance with RoHS requirements if applicable to your manufacturing process. Confirm availability through authorized distributors as stock levels fluctuate.
Select this component when a robust NPN transistor with high breakdown voltage is required for linear or switching circuits. Consider the TO-92-3 package constraints for thermal management in low-power designs. Evaluate the hFE binning options if precise gain control is necessary for the application circuit.
This part belongs to the 2N5551 series of NPN bipolar junction transistors manufactured by onsemi. It serves as a standard replacement for legacy high-voltage discrete semiconductor components used in consumer electronics and industrial control systems requiring reliable amplification capabilities.
Consult the manufacturer's cross-reference tools for parametrically similar parts. Verify pinout compatibility and electrical ratings before substituting with alternative manufacturers' equivalents.