LM336BZ-2.5/LFT7

Overview

The LM336BZ-2.5/LFT7 is a shunt precision voltage reference diode manufactured by Texas Instruments, designed for applications requiring stable voltage regulation. It operates within the TO-92-3 through-hole package and provides a nominal output voltage of 2.49 V. The device features an initial accuracy of 1% and a temperature coefficient of 20 PPM/°C. Maximum shunt current is rated at 10 mA, with a minimum operating current of 600 uA. The component supports an extended industrial temperature range from -40°C to +85°C.

Feature Summary

• Provides precise shunt voltage regulation with high initial accuracy
• Maintains stable performance across wide industrial temperature variations
• Utilizes a compact three-terminal TO-92 through-hole package

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Battery-powered instrumentation circuits
• Temperature compensation networks in sensor interfaces

Procurement Notes

Verify the specific suffix LFT7 against official datasheets to confirm reel packaging specifications and tape-and-reel dimensions. Ensure the ordering part number matches the required 1% accuracy grade and extended temperature range (-40°C to +85°C). Cross-reference the manufacturer's latest revision history to confirm RoHS compliance status and any pinout consistency updates before finalizing procurement orders.

Selection Notes

Select this component when a low-cost, high-accuracy shunt reference is needed for through-hole designs. The 1% initial accuracy suits applications demanding tighter tolerance than standard zener diodes. Consider the 20 PPM/°C temperature coefficient for environments with significant thermal fluctuations. Verify that the circuit can supply the minimum 600 uA bias current while staying within the 10 mA maximum limit.

Part Context

This device belongs to the LM336 series of two-terminal voltage references, which are widely used as economical alternatives to bandgap references. The LM336 family offers various fixed voltage options and accuracy grades. The 'B' designation typically indicates the 1% accuracy variant, distinguishing it from lower-precision models in the same product line.

Replacement Considerations

LM336Z-2.5/NOPB: Lower accuracy (4%) and limited temperature range (0°C to 70°C). LM336M-2.5/NOPB: Surface-mount SOIC package instead of TO-92. LM136H-2.5/NOPB: Military-grade temperature range (-55°C to 125°C) in TO-3 package.