SG2813J-883B

Overview

The SG2813J-883B is a high-reliability Darlington transistor array manufactured by Microchip Technology. It features eight NPN Darlington pairs with built-in suppression diodes, housed in a CDIP-18 ceramic dual in-line package. The device supports logic level compatibility with 5V TTL and CMOS inputs. Key electrical parameters include a maximum collector current of 0.6 A per channel and a maximum collector-emitter voltage of 50 V. Designed for medium-current applications, it integrates internal flyback protection to drive inductive loads efficiently.

Feature Summary

• Integrates eight independent NPN Darlington pairs within a single monolithic structure
• Includes built-in suppression diodes for internal flyback protection of inductive loads
• Ensures direct logic level compatibility with standard 5V TTL and CMOS input signals
• Constructed in a hermetically sealed ceramic dual in-line package for high reliability

Applications

• Driving incandescent lamps and lighting arrays in military systems
• Actuating relays and contactors requiring medium current switching
• Controlling solenoids and other inductive load mechanisms
• High-reliability interface circuits in aerospace and defense electronics

Procurement Notes

Verify the component authenticity through official Microchip channels or authorized distributors. Confirm the specific suffix '883B' indicates compliance with MIL-PRF-38534 standards. Request detailed test reports and traceability documentation to ensure suitability for qualified reliability programs. Validate that the received units match the specified CDIP-18 package and batch markings.

Selection Notes

Select this component when an application requires multiple isolated Darlington outputs with integrated flyback protection. It is suitable for designs needing direct interfacing with 5V logic families without additional driver circuitry. Consider the thermal characteristics of the ceramic package for heat dissipation requirements. Ensure the 0.6 A current rating and 50 V voltage limits align with the specific load conditions of the target system.

Part Context

This part belongs to the SG28xx series of high-reliability Darlington arrays produced under military specifications. It shares functional similarities with other variants in the family but is distinguished by its specific pinout and qualification status. The series is designed for environments demanding long-term stability and resistance to harsh conditions, serving as a robust solution for critical control interfaces.

Replacement Considerations

Direct replacements must maintain the same pinout, voltage ratings, and current capabilities. Verify that any substitute component also meets MIL-PRF-38534 requirements if the original design mandates such qualification. Check for equivalent logic compatibility and internal diode integration to ensure circuit functionality remains unchanged without modification.