1N4730A_T50R

Overview

The onsemi 1N4730A_T50R is a silicon planar Zener diode housed in a DO-41 glass case. It provides voltage regulation with a nominal Zener voltage of 3.9 V and a tolerance of ±5%. The device dissipates 1.0 W at a lead temperature of 50°C or lower, derating linearly above this threshold. Electrical characteristics include a maximum Zener impedance of 9 Ω at the test current of 64 mA and a maximum reverse leakage current of 50 µA at 1 V. The component operates within a junction and storage temperature range of -65°C to +200°C.

Feature Summary

• Provides stable voltage regulation using silicon planar technology
• Features a hermetically sealed glass passivated junction for durability
• Designed for high thermal stability with an extended operating temperature range

Applications

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

Procurement Notes

Verify the specific T50R suffix against official documentation to confirm reel packaging specifications. Confirm RoHS compliance status as it varies by manufacturing lot and suffix. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity and traceability of the semiconductor components.

Selection Notes

Select this component when a 3.9 V reference with 5% tolerance is required in a through-hole axial package. Consider the 1.0 W power dissipation limit and the 9 Ω dynamic impedance for circuit design. Evaluate the -65°C to +200°C temperature range against environmental requirements to ensure reliable operation under specified conditions.

Part Context

This part belongs to the 1N4728A through 1N4758A series of 1-watt Zener diodes manufactured by onsemi. The series offers extensive voltage selection ranging from 3.3 V to 100 V. These devices are JEDEC registered and utilize a standard DO-41 glass case, making them suitable for general-purpose voltage regulation tasks across various industrial and commercial electronic equipment.

Replacement Considerations

Cross-reference with other manufacturers' 1N4730A equivalents ensuring identical DO-41 packaging and 3.9 V nominal voltage. Verify that substitute parts meet the same 1.0 W power rating and ±5% tolerance specifications to maintain circuit performance integrity.