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The onsemi BC640ZL1 is a PNP silicon planar epitaxial transistor housed in a TO-92 (TO-226) three-pin package. It features a maximum collector-emitter voltage of -80 Vdc and a continuous collector current rating of -0.5 Adc. The device provides a total power dissipation of 625 mW at 25°C ambient temperature, with a thermal resistance junction-to-ambient of 200 °C/W. Operating characteristics include a minimum DC current gain of 40 at -150 mA and a transition frequency of 150 MHz. The component supports an operating junction temperature range from -55°C to +150°C.
Verify the specific suffix ZL1 indicates the Ammo Box shipping configuration containing 2000 units per box. Confirm RoHS compliance status as standard versions may differ from Pb-Free designations. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity and traceability of the semiconductor components.
Select this component when a PNP transistor with an 80 V collector-emitter breakdown voltage is required. The 0.5 A continuous current rating and 625 mW power dissipation define its thermal limits. Consider the TO-92 through-hole package for prototyping or low-volume manufacturing where surface-mount alternatives are not feasible.
This part belongs to the BC638/BC640 family of high-current transistors manufactured by onsemi. The BC640 variant specifically offers higher voltage ratings compared to the BC638. The ZL1 suffix denotes the specific packaging format used for automated assembly processes, distinguishing it from bulk box configurations.
BC640TA is listed as a similar available substitute.