1N4730A-TP

Overview

The MCC 1N4730A-TP is a silicon planar Zener diode housed in a DO-41G glass package. It provides a nominal Zener voltage of 3.9 V with a 5% tolerance at a test current of 64 mA. The device dissipates 1.0 W of power and operates within a temperature range of -65°C to +200°C. Key electrical characteristics include a maximum reverse leakage current of 50 uA, a Zener impedance of 9 Ohms, and a forward voltage drop of 1.2 V.

Feature Summary

• Utilizes silicon planar technology for stable voltage regulation
• Features a hermetic glass case (DO-41) for environmental protection
• Includes cathode band marking for polarity identification

Applications

• Voltage stabilization circuits
• Waveform clipping applications
• Reference voltage generation

Procurement Notes

Verify the specific 'A' suffix indicates the required 5% voltage tolerance rather than standard 10%. Confirm RoHS compliance status via official documentation as lead exemptions may apply. Ensure procurement channels are authorized distributors to prevent counterfeit components. Check for end-of-life notifications or discontinuance notices prior to finalizing orders.

Selection Notes

Select this component when a precise 3.9 V reference is needed with tight tolerance. The DO-41 through-hole package suits standard PCB layouts. Verify thermal derating requirements if ambient temperatures exceed 100°C. Consider the 9 Ohm dynamic impedance for high-frequency stability needs.

Part Context

This part belongs to the 1N4728A through 1N4761A series of 1-watt Zener diodes manufactured by Micro Commercial Components. The series covers voltages from 3.3 V to 75 V. The 'A' suffix specifically denotes a 5% voltage tolerance, distinguishing it from non-suffixed parts which typically have 10% tolerance.

Replacement Considerations

Cross-reference with other manufacturers offering 1N4730A equivalents in DO-41 packages. Ensure replacement parts match the 3.9 V nominal voltage, 1 W power rating, and 5% tolerance specifications.