FCX458TA

Single Bipolar Transistors Overview

The FCX458TA is a single NPN high-voltage silicon bipolar junction transistor manufactured by Diodes Incorporated. It operates within a collector-emitter voltage range of up to 400V and supports a continuous collector current of 225mA. The device features a low saturation voltage of less than 200mV at 20mA base drive, ensuring efficient switching performance. Packaged in an SOT-89 surface-mount configuration, it offers a transitional frequency of 50MHz and a power dissipation capacity of 1W under standard conditions. The component is designed for high-reliability applications and complies with JEDEC standards.

Single Bipolar Transistors Feature Summary

• High-voltage capability exceeding 400V collector-emitter breakdown
• Low saturation voltage for efficient switching operations
• Qualified to JEDEC standards for high reliability
• Totally lead-free and fully RoHS compliant

Single Bipolar Transistors Applications

• High-voltage switching circuits
• Power management systems
• Automotive electronics (with automotive-compliant variant)
• General-purpose amplification

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging details such as reel size and tape width. Confirm compliance requirements including RoHS 3 and halogen-free status directly with the manufacturer's datasheet. Ensure that thermal design considerations align with the specified copper pad layouts for optimal power dissipation.

Single Bipolar Transistors Selection Notes

Select this component when a high-voltage NPN transistor with moderate current handling is required in a compact surface-mount package. Consider the complementary PNP type FCX558 if a matched pair is needed for push-pull configurations. Evaluate thermal resistance values based on the intended PCB copper area to ensure safe operating temperatures are maintained during operation.

Single Bipolar Transistors Part Context

This part belongs to the FCX458 series of high-voltage transistors from Diodes Incorporated. It is specifically designed for applications requiring robust performance in space-constrained environments. The SOT-89 package provides a balance between power handling capabilities and small form factor, making it suitable for various electronic designs.

Single Bipolar Transistors Replacement Considerations

The FCX558 is documented as the complementary PNP type within the same series. For automotive applications, the FCX458Q is available under a separate datasheet. Verify pinout compatibility and electrical characteristics before substituting with other high-voltage NPN transistors.

Single Bipolar Transistors FAQ

What is the maximum collector-emitter voltage rating?

The FCX458TA has a maximum collector-emitter voltage (VCEO) rating of 400V.

Is this component suitable for automotive applications?

While qualified to JEDEC standards, an automotive-compliant version (FCX458Q) is available under a separate datasheet for specific automotive requirements.

What is the typical saturation voltage at low currents?

The saturation voltage VCE(sat) is less than 200mV when the collector current is 20mA and the base current is 2mA.