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Product Detailed Parameters
- Description：TRANS NPN 80V 1A TO92
- Series：-
- Mfr：onsemi
- Package：Tape & Box (TB)
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：1:00 AM
- Voltage - Collector Emitter Breakdown (Max)：80 V
- Vce Saturation (Max) @ Ib, Ic：500mV @ 50mA, 500mA
- Current - Collector Cutoff (Max)：100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：40 @ 150mA, 2V
- Power - Max：625 mW
- Frequency - Transition：200MHz
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 Long Body, Formed Leads
- Supplier Device Package：TO-92 (TO-226)
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Overview
The BC639ZL1 is an NPN silicon high-current transistor manufactured by onsemi. It features a collector-emitter voltage of 80 V and a continuous collector current rating of 1.0 A. The device operates within a junction temperature range of -55°C to +150°C with a total device dissipation of 625 mW at 25°C ambient. Electrical characteristics include a DC current gain (hFE) ranging from 40 to 160 at 150 mA, a transition frequency (fT) of 200 MHz, and a collector-emitter saturation voltage of 0.5 V maximum at 500 mA. It utilizes a TO-92 package.
Feature Summary
- High current capability supporting up to 1.0 A continuous collector current
- Wide operating temperature range extending to +150°C junction temperature
- High transition frequency for effective performance in switching applications
Applications
- General-purpose switching circuits
- Amplifier stages requiring high current drive
- Driver circuits for loads exceeding standard signal levels
Procurement Notes
Verify the specific ordering suffix ZL1 corresponds to the Ammo Box packaging configuration as documented in the official datasheet. Confirm RoHS compliance status if required, noting that the 'G' suffix indicates Pb-Free availability. Ensure the procurement request matches the exact part number to avoid confusion with other variants in the BC63x series.
Selection Notes
Select this component when an NPN transistor with 80 V breakdown and 1 A current handling is required. Compare against BC637 or BC635 if lower voltage ratings are acceptable. Verify thermal management requirements based on the 625 mW dissipation limit in free air. Consider the hFE range of 40 to 160 for base drive calculations in amplifier designs.
Part Context
This component belongs to the BC635, BC637, BC639, and BC639-16 family of high-current NPN transistors. All members share identical physical dimensions and pinouts but differ in voltage ratings. The BC639 variant specifically provides the highest voltage rating within the standard group at 80 V, distinguishing it from the 45 V and 60 V counterparts.
Replacement Considerations
BC639RL1G serves as a direct functional replacement with identical electrical specifications, differing only in tape and reel packaging instead of the ammo box format.
