NE678M04-T2-A

Overview

The NE678M04-T2-A is a medium power NPN silicon high frequency transistor manufactured by CEL. It utilizes NEC's HFT3 wafer process and features a transition frequency of 12 GHz, suitable for applications from 100 MHz to 3 GHz. The device provides an output power at 1 dB compression (P1dB) of 18 dBm at 1.8 GHz with low voltage and current requirements. It offers a linear gain of 13 dB at 1.8 GHz and a maximum available gain of 13.5 dB at 2 GHz. The component is housed in the M04 package, which has an SOT-343 footprint and a height of 0.59 mm. Absolute maximum ratings include a collector-to-base voltage of 9.0 V, collector-to-emitter voltage of 6.0 V, and total power dissipation of 205 mW.

Feature Summary

• High gain bandwidth product of 12 GHz
• High output power capability of 18 dBm at 1.8 GHz
• Low profile flat lead style M04 package for improved RF performance

Applications

• Driver stage for mobile wireless applications
• Driver stage for fixed wireless applications
• RF amplification in the 100 MHz to 3 GHz range

Procurement Notes

Verify the specific ordering suffix -T2-A against the manufacturer's official documentation to confirm reel quantity and packaging details. Confirm RoHS compliance status based on the -A suffix designation provided in the datasheet. Ensure that the procurement channel sources directly from authorized distributors or CEL to guarantee component authenticity and traceability.

Selection Notes

Select this component when designing circuits requiring high linearity and gain in the UHF to microwave bands. The device is optimized for driver stages where moderate output power is needed under low voltage conditions. Evaluate thermal management requirements carefully, as the total power dissipation is limited to 205 mW. Consider the M04 package dimensions for PCB layout constraints compared to standard SOT-343 footprints.

Part Context

This part is distributed by California Eastern Laboratories (CEL) as the exclusive North American agent for NEC RF, Microwave & Optoelectronic Semiconductors. The base device is the NEC NE678M04. The suffix -T2-A indicates a tape and reel packaging format with 3000 pieces per reel and Pb-free terminal composition compliant with EU RoHS directives.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult the manufacturer for direct replacements or evaluate components with similar electrical characteristics such as transition frequency and power dissipation ratings.