1N5387B-AP

Overview

The 1N5387B-AP is a silicon planar Zener diode manufactured by Micro Commercial Components (MCC). It belongs to the JEDEC registered 1N53xxB series, designed for voltage regulation applications. The device features a plastic encapsulation and axial leaded construction. It provides a nominal Zener voltage of 190 V with a tolerance of ±5%. The component is rated for a maximum power dissipation of 5 W at a case temperature of 75°C. It operates within a junction temperature range of -55°C to +150°C.

Feature Summary

• Provides stable voltage regulation across a wide range using silicon planar technology.
• Features low thermal resistance design suitable for high DC current operation with adequate heat sinking.
• Encapsulated in moisture-resistant plastic with Level 1 moisture classification.

Applications

• Voltage regulation circuits
• Overvoltage protection
• Reference voltage sources

Procurement Notes

Verify the specific suffix 'AP' against the official MCC datasheet to confirm packaging or screening variations. Ensure the procurement source provides the genuine manufacturer datasheet for the 1N5387B-AP variant. Confirm RoHS compliance status if required by the application specifications. Cross-reference the part number with the distributor's catalog to ensure availability and authenticity before ordering.

Selection Notes

Select this component when a 190 V regulation point is required in a through-hole axial package. Consider the 5 W power rating and ensure sufficient thermal management is implemented for continuous operation. Verify that the ±5% tolerance meets the circuit requirements. Compare dynamic impedance characteristics if precise regulation under varying load currents is critical for the design.

Part Context

This component is part of the broader 1N5333B-1N5388B series of 5 Watt Zener diodes. The series covers a voltage range from 3.3 V to 200 V. The 'B' suffix typically denotes a ±5% tolerance. These diodes are widely used in industrial and commercial electronics where reliable voltage clamping and regulation are necessary. The axial leaded format facilitates easy insertion into printed circuit boards.

Replacement Considerations

Compatible replacements include other manufacturers' 1N5387B equivalents. Ensure the substitute matches the 190 V Zener voltage, 5 W power rating, and DO-15/axial package dimensions. Verify that the replacement offers similar dynamic impedance and leakage current specifications to maintain circuit performance.