AT-41486-BLKG

Overview

The AT-41486-BLKG is a general-purpose NPN silicon bipolar transistor housed in an 86 plastic surface-mount package. It utilizes Avago’s 10 GHz fT self-aligned-transistor process with nitride passivation and gold metalization. The device features a 4-micron emitter-to-emitter pitch and a 14-finger interdigitated geometry for easy impedance matching. Key electrical specifications include a maximum collector current of 60 mA, power dissipation of 500 mW, and a gain-bandwidth product of 8.0 GHz. At 25°C, it offers a typical noise figure of 1.4 dB at 1.0 GHz and 1.7 dB at 2.0 GHz.

Feature Summary

• Low noise figure performance optimized for low noise amplifier applications
• High associated gain suitable for moderate power applications
• Self-aligned-transistor fabrication process ensuring excellent uniformity and reliability
• Surface mount plastic package design for cost-effective integration

Applications

• Wireless systems as a low noise amplifier (LNA)
• Gain stage implementation in RF circuits
• Buffer and oscillator functions
• Mixer applications requiring intermediate sized transistors

Procurement Notes

Verify the specific ordering suffix to confirm packaging format. The BLKG suffix indicates a bulk quantity of 100 units per container. Confirm lead-free availability if required by checking for the G suffix on alternative part numbers such as AT-41486-BLK or TR1 variants. Ensure component authenticity through authorized distribution channels.

Selection Notes

Select this component when designing circuits requiring a general-purpose NPN transistor with high-frequency capabilities up to 6 GHz. The device is appropriate for applications needing a noise figure near 1.4 dB at 1.0 GHz. Consider the 86 plastic package dimensions for PCB layout constraints. Evaluate thermal derating requirements if operating above 68°C case temperature.

Part Context

This component belongs to the AT-41486 series of low noise silicon bipolar transistors manufactured by Broadcom Limited (formerly Avago Technologies). The series includes various packaging options such as bulk and tape-and-reel configurations. The technology relies on a 10 GHz fT self-aligned process designed for consistent performance across wireless communication hardware.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility based on pinout, package dimensions, and electrical parameters before substituting with other NPN RF transistors.

FAQ

What is the typical noise figure at 1.0 GHz?

The typical noise figure is 1.4 dB at 1.0 GHz with VCE = 8 V and IC = 10 mA.

What is the maximum collector current rating?

The absolute maximum collector current is 60 mA.

How does the 'G' suffix affect the part number?

Ordering the part number with a 'G' suffix indicates that the lead-free option is desired.