BC550_J35Z

Single Bipolar Transistors Overview

The BC550_J35Z is a Bipolar Junction Transistor (BJT) manufactured by onsemi. It features an NPN configuration housed in a TO-92-3 package with formed leads. The device supports a collector-emitter voltage of 45 V and a continuous collector current of 100 mA. Key electrical characteristics include a minimum DC current gain (hFE) ranging from 420 to 800, depending on the specific binning grade. The component is designed for through-hole mounting and operates within a junction temperature range of -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• NPN bipolar junction transistor architecture optimized for general-purpose amplification
• High DC current gain performance suitable for low-noise signal processing applications
• Robust thermal stability with a maximum junction temperature rating of 150°C
• Isolated case construction providing electrical safety in sensitive circuit designs

Single Bipolar Transistors Applications

• Low-noise audio pre-amplifier stages
• General-purpose switching circuits
• Linear regulation and biasing networks

Single Bipolar Transistors Procurement Notes

Verify the exact hFE binning grade required for your application, as the BC550 series offers multiple gain ranges (e.g., 420-800). Confirm that the J35Z suffix corresponds to the correct bulk packaging format. Ensure compatibility with existing PCB footprints for the TO-92-3 package. Check for any recent part number updates due to manufacturer system integrations.

Single Bipolar Transistors Selection Notes

Select this component when high current gain is critical for signal amplification efficiency. Compare against standard BC547 or BC548 variants if lower gain thresholds are acceptable. Consider the 45V breakdown voltage limit relative to supply rails. Evaluate thermal management requirements given the small form factor and power dissipation limits inherent to the TO-92 package.

Single Bipolar Transistors Part Context

This device belongs to the widely used BC550 family of NPN transistors, historically associated with Fairchild Semiconductor before its integration into onsemi. The BC550 is distinguished by its higher current gain compared to similar general-purpose transistors like the BC547. It serves as a direct replacement for many legacy designs requiring reliable, low-cost amplification components in consumer electronics and industrial control systems.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include the BC550B or BC550C, which differ primarily in their specified hFE gain ranges. Other compatible alternatives may include the BC547 or BC548 series, though these typically offer lower current gain specifications. Verify pinout compatibility and thermal characteristics when substituting.