ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：TRANS PNP 45V 0.5A TO-92-3
- Series：-
- Mfr：onsemi
- Package：Bulk
- Transistor Type：PNP
- Current - Collector (Ic) (Max)：500 mA
- Voltage - Collector Emitter Breakdown (Max)：45 V
- Vce Saturation (Max) @ Ib, Ic：600mV @ 2.5mA, 100mA
- Current - Collector Cutoff (Max)：10nA
- DC Current Gain (hFE) (Min) @ Ic, Vce：80 @ 10mA, 1V
- Power - Max：625 mW
- Frequency - Transition：-
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
Download product information
Overview
The BCX79 is a PNP general-purpose amplifier and switch transistor manufactured by onsemi. It features a collector-emitter breakdown voltage of 45 V and supports continuous collector currents up to 500 mA. The device utilizes a TO-92 package with a total device dissipation of 625 mW at 25°C. Key electrical characteristics include a DC current gain (hFE) ranging from 40 to 1,000 depending on the operating current, and a collector-base capacitance of 4.5 pF. The component operates within a junction temperature range of -55°C to +150°C.
Feature Summary
- Designed for general-purpose amplification and switching applications requiring moderate collector currents.
- Provides high DC current gain suitable for signal processing tasks.
- Features low collector-base capacitance for small-signal performance.
Applications
- General purpose amplifiers
- Electronic switches
Procurement Notes
Verify the manufacturer origin, as this component was originally produced by Fairchild Semiconductor before its acquisition by onsemi. Confirm the specific datasheet revision and package marking to ensure compatibility with existing designs. Check for any lifecycle status changes or obsolescence notices that may affect long-term supply availability.
Selection Notes
Select the BCX79 when a PNP transistor with a 45 V collector-emitter voltage rating and up to 500 mA continuous current capability is required. Consider the TO-92 through-hole package for standard PCB layouts. Evaluate the hFE range and saturation voltages against the specific load requirements of the amplifier or switch circuit design.
Part Context
This component belongs to the family of small-signal bipolar transistors intended for audio and general electronic circuits. It serves as a discrete alternative to integrated amplifier stages in low-power applications. The device is characterized by its robust thermal handling and reliable switching performance in standard industrial and consumer electronics environments.
Replacement Considerations
Consult the datasheet for the PN200A, which shares similar characteristics. Verify pinout compatibility and electrical parameters such as V(BR)CEO and IC ratings before substituting with other PNP transistors in the TO-92 package.
FAQ
What is the maximum continuous collector current for the BCX79?
The absolute maximum rating for continuous collector current (IC) is 500 mA.
What is the collector-emitter breakdown voltage?
The collector-emitter breakdown voltage (V(BR)CEO) is specified at 45 V.
What package type does the BCX79 use?
The BCX79 is housed in a TO-92 package.
