1N5301 TR PBFREE

Overview

The 1N5301 TR PBFREE is a silicon current regulator diode manufactured by Central Semiconductor Corp. It operates within a peak voltage range of up to 100V and maintains a steady-state power dissipation rating of 500mW at an ambient temperature of 75°C. The device exhibits a maximum knee impedance of 1 MOhm and a minimum dynamic impedance of 4 MOhms. Designed for surface-mount applications, it utilizes the SOD-80 package configuration. The component supports a wide operating temperature range from -55°C to +150°C and complies with RoHS standards.

Feature Summary

• Provides stable current regulation across varying load conditions
• Features high dynamic impedance for effective noise isolation
• Supports extended thermal operation in demanding environments

Applications

• Constant current sources for LED driving circuits
• Biasing elements in transistor amplifier stages
• Current limiting protection in sensitive electronic loads

Procurement Notes

Verify the specific manufacturer datasheet for the 1N5301 TR PBFREE to confirm exact electrical tolerances and pinout configurations before integration. Ensure that the SOD-80 footprint matches the target PCB layout requirements precisely. Cross-reference the RoHS compliance documentation to meet environmental regulations for the intended market. Confirm the reel packaging specifications align with automated assembly equipment capabilities.

Selection Notes

Select this component when a fixed current source is required without complex feedback loops. The high dynamic impedance makes it suitable for applications needing simple, reliable current limiting. Consider the SOD-80 package size constraints during board design. Evaluate the thermal derating curves if the operating environment exceeds standard room temperature conditions to ensure long-term reliability.

Part Context

This part belongs to the family of solid-state current regulator diodes produced by Central Semiconductor. These devices function similarly to JFETs but are optimized for consistent current flow rather than amplification. The 1N5301 variant specifically targets general-purpose regulation tasks where discrete resistor-capacitor networks would be too bulky or unstable. It serves as a cost-effective alternative to active current mirror circuits in basic analog designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference data. Verify compatibility with generic CRD equivalents based on matching current ratings and package dimensions.