NE687M33-A

Overview

The NE687M33-A is an NPN silicon RF bipolar transistor manufactured by CEL, designed for low-noise applications in the L-band. It utilizes a 3-pin Super Lead-less Minimold (M33) surface-mount package. Key electrical specifications include a maximum collector current of 30 mA and a total power dissipation of 90 mW. The device exhibits a typical noise figure of 1.5 dB at VCE = 1 V, IC = 3 mA, and f = 2 GHz. It offers a gain bandwidth product of 12 GHz and an insertion power gain of 9 dB under standard test conditions.

Feature Summary

• Low noise performance optimized for high-frequency signal processing
• Compact 3-pin leadless minimold package suitable for space-constrained designs
• High DC current gain classification for stable amplification

Applications

• L-band low noise amplifier circuits
• RF front-end modules requiring minimal signal degradation
• Wireless communication systems operating at microwave frequencies

Procurement Notes

Verify the specific ordering suffix when sourcing components. The -A suffix denotes compliance with RoHS directives and indicates lead-free terminals. Confirm availability status as this component may be subject to lifecycle changes or discontinuation notices from the manufacturer. Ensure that procurement channels provide original manufacturer documentation to validate authenticity and technical specifications.

Selection Notes

Select the NE687M33-A for designs prioritizing low noise figures in the L-band spectrum. Evaluate thermal management requirements carefully, as the device has a limited power dissipation rating of 90 mW. Consider the M33 package dimensions for PCB layout constraints. Compare hFE classifications if specific gain ranges are required for the application circuit stability.

Part Context

This component belongs to the NEC/CEL family of NPN silicon RF transistors engineered for high-frequency operations. It shares architectural similarities with other Minimold packaged devices but is distinct in its specific noise and gain characteristics tailored for L-band applications. The part represents a transition point in RF discrete semiconductor offerings between legacy NEC products and current CEL manufacturing lines.

Replacement Considerations

Direct substitutes within the same Minimold footprint should be evaluated based on matching noise figure and gain bandwidth product parameters. Verify pin compatibility and absolute maximum ratings before implementation.