1N4757A-TP

Overview

The 1N4757A-TP is a silicon planar Zener diode manufactured by Micro Commercial Components (MCC). It provides voltage regulation at a nominal Zener voltage of 51 V with a 5% tolerance. The device features a DO-41G glass package and supports a maximum DC power dissipation of 1.0 W at an ambient temperature of 50°C. Electrical characteristics include a forward voltage drop of 1.2 V at 200 mA, a reverse leakage current of 5 µA at 38.8 V, and a dynamic impedance of 95 Ω at the test current of 5 mA. The component operates within a temperature range of -65°C to +200°C.

Feature Summary

• Utilizes silicon planar technology for stable voltage regulation
• Encased in a hermetic glass DO-41 package
• Supports high operating temperatures up to +200°C

Applications

• DC power supply voltage regulation
• Voltage reference circuits
• Overvoltage protection

Procurement Notes

Verify part authenticity through authorized MCC distributors or direct purchase from Micro Commercial Components Corp. Counterfeit components pose significant risks; ensure full traceability and compliance with MCC quality standards. Confirm RoHS compliance status via official documentation before procurement.

Selection Notes

Select this component when a precise 51 V regulation point is required within a 5% tolerance band. Ensure the application environment remains within the specified -65°C to +200°C operational range. Verify that the circuit design accommodates the 1.0 W power dissipation limit and derating requirements above 100°C.

Part Context

This component belongs to the 1N4728A through 1N4761A series of 1.0 Watt Zener diodes produced by Micro Commercial Components. The series covers a wide voltage selection from 3.3 to 75 Volts. The 'A' suffix indicates a 5% voltage tolerance, while the '-TP' suffix designates tape and reel packaging configuration.

Replacement Considerations

Cross-reference with other manufacturers offering standard 1N4757 specifications. Ensure substitute parts match the 51 V nominal voltage, 5% tolerance, 1.0 W power rating, and DO-41 package dimensions for mechanical compatibility.

FAQ

What is the Zener impedance value for the 1N4757A-TP?

The maximum dynamic impedance (ZZT) is 95 Ω, measured at a test current (IZT) of 5 mA.

Does the 1N4757A-TP support RoHS compliance?

Yes, the datasheet indicates that lead-free finish and RoHS compliance are designated by the 'P' suffix, and the product is marked as RoHS compliant.