SG2821J-DESC

Overview

The SG2821J-DESC is a high-reliability Darlington transistor array manufactured by Microchip Technology. Designed for medium-current applications, this component features an NPN configuration with seven independent channels. It operates within a wide temperature range from -55°C to +125°C and utilizes a CLCC-20 surface-mount package. The device supports a maximum collector-emitter voltage of 95 V and provides a minimum DC current gain (hFE) of 1000. With a maximum DC collector current of 500 mA per channel and open-collector outputs, it serves as a robust driver solution for demanding environments requiring MIL-STD-883 compliance.

Feature Summary

• High-reliability construction suitable for military and aerospace standards
• Seven-channel Darlington array configuration for compact circuit design
• Wide operating temperature range ensuring stability in extreme conditions

Applications

• Military avionics control systems
• Aerospace sensor interface circuits
• High-reliability industrial automation drivers

Procurement Notes

Verify the specific suffix requirements with the manufacturer prior to ordering, as custom or special order configurations may apply. Confirm that the procurement channel accepts factory-direct special orders rather than standard distributor stock. Ensure all technical specifications align with the project's environmental and reliability mandates before finalizing the purchase agreement.

Selection Notes

Select this component when a multi-channel Darlington array is required for driving loads in harsh environments. Verify that the 95 V collector-emitter voltage and 500 mA current capacity meet the load requirements. Ensure the CLCC-20 package footprint is compatible with the PCB layout and that the assembly process supports ceramic leadless chip carrier soldering techniques.

Part Context

This part belongs to Microchip's family of high-reliability semiconductor devices designed for defense and space applications. It shares functional similarities with other SG-series Darlington arrays but is distinguished by its specific channel count and package type. The component is engineered to withstand rigorous testing protocols defined by MIL-STD-883, ensuring long-term performance in critical systems.

Replacement Considerations

Direct replacements must match the CLCC-20 package and seven-channel NPN Darlington configuration. Verify pinout compatibility and electrical parameters such as VCEO and hFE. Cross-reference with other Microchip SG-series parts or equivalent military-grade suppliers to ensure form, fit, and function alignment without compromising reliability standards.