BC338

Single Bipolar Transistors Overview

The onsemi BC338 is an NPN silicon epitaxial planar transistor housed in a TO-92 package. It features a maximum collector-emitter voltage (VCEO) of 45 V and a maximum collector-base voltage (VCBO) of 50 V. The device supports a continuous DC collector current (IC) of 800 mA with a maximum power dissipation of 625 mW at 25°C ambient temperature. It operates within a junction temperature range up to +150°C and offers a minimum DC current gain (hFE) of 100 at IC = 100 mA.

Single Bipolar Transistors Feature Summary

• Designed for general-purpose amplification and switching applications
• Compatible with complementary PNP transistors such as the BC318/BC319 series
• Constructed using epitaxial planar technology for reliable performance

Single Bipolar Transistors Applications

• General-purpose amplifier circuits
• Low-power switching applications
• Complementary pairs with BC318 or BC319

Single Bipolar Transistors Procurement Notes

Verify the specific suffix code against official datasheets, as variants may exist. Confirm RoHS compliance status and lead-free manufacturing details directly from the manufacturer's documentation before procurement. Ensure the ordering part number matches the required electrical grade and packaging specifications.

Single Bipolar Transistors Selection Notes

Select this component for designs requiring moderate voltage handling and current capacity in a standard through-hole package. Consider the thermal resistance and power dissipation limits when designing heat management strategies. Verify that the required current gain meets the circuit's minimum threshold under expected operating conditions.

Single Bipolar Transistors Part Context

This component belongs to the widely used BCY series of small-signal bipolar junction transistors. It serves as the NPN counterpart to the BC318/BC319 PNP devices, facilitating push-pull output stages. The TO-92 form factor ensures compatibility with legacy PCB layouts and manual assembly processes common in consumer electronics.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include the BC337, which shares identical pinout and similar electrical characteristics but offers higher voltage ratings. Other compatible replacements are the 2N2222A and MMBT3904, though these may differ in current handling capabilities and package styles.