H431LKA

$0.14

Description：ADJUSTABLE PRECISIONSHUNT REGULA
Series：-
Mfr：HY Electronic (Cayman) Limited
Package：Bulk

SKU:c7781a368344 Category: Voltage Reference Brand: HY Electronic (Cayman) Limited

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Product introduction

Product Detailed Parameters

Description：ADJUSTABLE PRECISIONSHUNT REGULA
Series：-
Mfr：HY Electronic (Cayman) Limited
Package：Bulk
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.495V
Voltage - Output (Max)：40 V
Current - Output：150 mA
Operating Temperature：-60°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package：TO-92
Grade：-
Qualification：-

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H431LKA

Overview

The H431LKA is an adjustable precision shunt regulator from the H431LK series, manufactured by HY Electronic (Cayman) Limited. It provides a programmable output voltage up to 40V with a guaranteed reference voltage tolerance of ±0.5%. The device operates within a cathode current range of -100 mA to 150 mA and features a low dynamic output impedance of 0.2 Ω typical. It is available in SOT-23 and TO-92 packages, supporting an operating temperature range of -60°C to +125°C.

Feature Summary

Programmable output voltage capability extending up to 40V
Guaranteed tight reference voltage tolerance of ±0.5%
Low dynamic output impedance for stable regulation
Temperature compensated operation across the full rated range

Applications

Switching Mode Power Supply
Voltage Monitoring
Adjustable Voltage and Current Referencing

Procurement Notes

Verify the specific package variant required, as the H431LK series is offered in both SOT-23 and TO-92 configurations. Confirm that the marking code corresponds to the selected package type. Ensure the application design accommodates the specified continuous cathode current limits and junction temperature ratings for reliable long-term performance.

Selection Notes

Select this component when a precise, adjustable shunt reference is needed with high accuracy. The ±0.5% tolerance makes it suitable for applications requiring strict voltage referencing. Consider the thermal dissipation capabilities of the chosen package, as power dissipation varies between SOT-23 and TO-92 formats under different operating conditions.

Part Context

The H431LKA belongs to the H431LK series of three-terminal adjustable regulators. These devices are designed to replace Zener diodes in many applications due to their sharp turn-on characteristics and lower noise. The series ensures thermal stability over the entire operating temperature range, making it versatile for various electronic designs.