MCH4021-TL-E

Overview

The MCH4021-TL-E is an NPN epitaxial planar silicon RF transistor manufactured by onsemi. Designed for high-frequency applications, it operates with a maximum collector-emitter voltage of 8V and supports a continuous collector current of 150mA. The device features a transition frequency (fT) of 16GHz at VCE=5V, ensuring effective signal amplification in radio frequency circuits. It utilizes the MCPH4 surface-mount package, which facilitates compact board layouts while maintaining thermal performance suitable for demanding electronic systems.

Feature Summary

• High cut-off frequency enabling efficient operation at GHz-level signals
• Low noise figure characteristics optimized for sensitive receiver stages
• High gain performance supporting robust signal amplification
• Halogen-free compliance adhering to environmental standards

Applications

• RF low-noise amplifier stages
• Wireless communication transceivers
• Satellite navigation systems

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm pinout compatibility and electrical tolerances. Ensure the component meets RoHS and halogen-free requirements if mandated by your design specifications. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring high-frequency amplification with minimal noise introduction. The 16GHz transition frequency makes it suitable for modern wireless standards. Evaluate the MCPH4 package dimensions against your PCB footprint constraints. Confirm that the 8V voltage rating aligns with your system's power supply limits to prevent breakdown during operation.

Part Context

This part belongs to onsemi's portfolio of discrete RF transistors engineered for high-performance analog and radio frequency applications. The MCPH4 packaging represents a compact solution designed for automated surface-mount assembly processes. These devices are integral to signal chain components where size, weight, and high-frequency stability are critical design parameters.

Replacement Considerations

The MCH4020-TL-E is a documented similar part number from the same manufacturer family. Verify electrical parameters such as noise figure and gain against your specific circuit requirements before substituting.