1N5303 BK PBFREE

Overview

The 1N5303 BK PBFREE is a silicon field effect current regulator diode manufactured by Central Semiconductor Corp. It provides a constant current of 1.6 mA nominal over a wide voltage range, with a peak operating voltage of 100 V and power dissipation of 600 mW at 75°C ambient temperature. The device utilizes a DO-35 axial through-hole glass package and is RoHS compliant. Electrical characteristics specify a minimum regulator current of 1.4 mA and a maximum of 1.8 mA at 25 V test voltage.

Feature Summary

• Maintains constant current output across a wide voltage range
• Utilizes cost-effective DO-35 double plug case for space savings
• Offers superior lot-to-lot consistency and high reliability
• Designed for applications requiring precise current limiting

Applications

• Constant current sources in electronic circuits
• Current limiting protection for sensitive components
• Biasing elements in transistor amplifier stages
• Reference current generation in analog systems

Procurement Notes

Verify the specific suffix designation to confirm lead-free compliance and packaging configuration. Ensure the procurement order matches the required regulatory standards, such as RoHS certification. Confirm that the supplier provides documentation verifying the manufacturer source as Central Semiconductor Corp. Check for any specific handling requirements associated with the glass axial package type during storage and assembly processes.

Selection Notes

Select this component when a stable current regulation is required without complex circuitry. The DO-35 package suits through-hole mounting constraints. Evaluate the 100 V peak operating voltage against the circuit's maximum potential differences. Consider the 600 mW power dissipation limit for thermal management in enclosed environments. Verify that the 1.6 mA nominal current aligns with the target application's electrical requirements.

Part Context

This part belongs to the 1N5283 series of silicon current limiting diodes from Central Semiconductor. The series includes various current ratings tailored for critical applications. These devices are designed to replace traditional resistor-based current limiting solutions, offering improved performance and reliability in compact designs.

Replacement Considerations

Direct substitutes within the same series include other 1N53xx variants with different current ratings. Cross-reference specifications for matching current tolerance and voltage limits before implementation.