LM136-2.5 MD8

Overview

The LM136-2.5 MD8 is a precision shunt voltage reference diode manufactured by Texas Instruments, housed in an 8-pin CDIP package. It provides a nominal output voltage of 2.49 V with an initial accuracy of 1%. The device operates within a temperature range of -55°C to +125°C and features a temperature coefficient of 20 ppm/°C. Maximum shunt current is rated at 10 mA.

Feature Summary

• Provides stable 2.5V reference via shunt topology
• Military-grade wide operating temperature range
• High initial accuracy for precision applications

Applications

• Precision analog-to-digital converter references
• Temperature-compensated oscillator circuits
• Military instrumentation systems

Procurement Notes

Verify the MD8 suffix indicates the specific 8-pin ceramic dual in-line package variant. Confirm RoHS compliance status as NOPB suffixes may differ. Ensure the military grade (-55 to 125 C) matches system requirements. Check datasheet for specific burn-in or screening options if required for aerospace use.

Selection Notes

Select this component when high accuracy (1%) and wide temperature stability are critical. Compare against LM236/LM336 series for commercial alternatives if military rating is unnecessary. Consider package constraints as TO-99 or CDIP formats limit PCB density compared to SOIC variants.

Part Context

Part of the LM136 family of precision reference diodes. Designed for harsh environments requiring long-term stability. Often used in conjunction with operational amplifiers for regulated power supplies or as a benchmark for sensor signal conditioning chains in defense electronics.

Replacement Considerations

LM136A-2.5 offers tighter initial accuracy specifications. LM236-2.5 and LM336-2.5 provide similar functionality but may have different temperature ranges or accuracy grades depending on the suffix.