LM334Z#PBF

Current Regulation/Management Overview

The LM334Z#PBF is a three-terminal adjustable current source manufactured by Analog Devices Inc. in a TO-92-3 package. It operates with an input voltage range of 0.8V to 40V and supports a maximum output current of 10mA. The device features a power dissipation rating of 200mW and maintains an operating temperature range from 0°C to 70°C. Current accuracy is specified at a maximum error of 6% when V+ equals 2.5V. It functions as a true floating current source requiring only one external resistor for programming.

Current Regulation/Management Feature Summary

• Three-terminal adjustable current source architecture
• Wide dynamic voltage range operation
• Single external resistor current programming
• True floating current source capability

Current Regulation/Management Applications

• Industrial monitoring systems
• Automotive electronics
• Aerospace instrumentation

Current Regulation/Management Procurement Notes

Verify the manufacturer designation on the component marking, as the LM334 series is produced by both Texas Instruments and Analog Devices. Confirm the specific suffix #PBF indicates the lead-free RoHS-compliant version. Ensure the package type matches the required TO-92-3 footprint for your PCB design. Check datasheet revisions for any updates to electrical characteristics or thermal limits before finalizing the bill of materials.

Current Regulation/Management Selection Notes

Select this component when a low-cost, programmable current source is needed for biasing or regulation. The wide input voltage range allows flexibility in supply configurations. Consider the 6% accuracy specification against application requirements. The TO-92-3 package suits through-hole assembly processes. Evaluate thermal dissipation constraints given the 200mW power rating in enclosed environments.

Current Regulation/Management Part Context

This part belongs to the LM334 family of current regulators. It serves as a fundamental building block for constant current applications. The device replaces discrete transistor solutions with a single integrated component. Its simplicity reduces circuit complexity and component count. The family is widely used in analog signal conditioning and sensor interfaces.

Current Regulation/Management Replacement Considerations

Direct substitutes include LM334Z/NOPB from Texas Instruments. Other variants like LM334SM offer surface mount options. Verify pinout compatibility and electrical specifications before substitution. Package differences may require mechanical redesign.