LM336BZ-5.0

Overview

The LM336BZ-5.0 is a precision shunt voltage reference diode manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed 5.0V output with an initial accuracy of ±2%. The device operates within a temperature range of 0°C to +70°C and utilizes a TO-92-3 through-hole package. Key electrical specifications include a maximum shunt current of 10 mA and a minimum operating current of 600 µA. It features a temperature coefficient of 20 PPM/°C, ensuring stable performance in analog circuitry.

Feature Summary

• Provides a precise 5.0V reference voltage suitable for low-voltage applications
• Monolithic integrated circuit design ensures reliability and compact form factor
• Operates as a shunt regulator requiring minimal external components

Applications

• Precision digital voltmeters
• Power supply regulation circuits
• Operational amplifier biasing and reference stages

Procurement Notes

Verify the manufacturer designation carefully, as National Semiconductor assets are managed by Texas Instruments. Confirm the specific suffix 'B' indicates the commercial temperature grade (0°C to +70°C) rather than industrial or military grades. Ensure the package type matches the required PCB footprint, typically TO-92-3 for this variant. Cross-reference datasheets from authorized distributors to confirm RoHS compliance and current production status.

Selection Notes

Select this component when a fixed 5.0V reference is required in space-constrained designs using through-hole technology. The ±2% initial accuracy is sufficient for general-purpose analog applications but may require calibration for high-precision instrumentation. Consider the thermal resistance and power dissipation limits if operating near the maximum shunt current of 10 mA. Compare against LM336Z variants if a wider temperature range is necessary.

Part Context

The LM336 series comprises precision shunt voltage references available in various fixed voltages. The LM336BZ-5.0 specifically denotes the 5.0V version in the commercial grade category. This family serves as a fundamental building block for linear regulators, ADC/DAC references, and sensor signal conditioning circuits where stability and low cost are prioritized over ultra-high precision.

Replacement Considerations

LM336Z-5.0/NOPB offers similar electrical characteristics but supports a wider temperature range (-40°C to +85°C). LM136BZ-5.0 provides military-grade performance with tighter specifications. Verify pinout compatibility and thermal requirements before substituting.