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1N4730A TR
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Product Detailed Parameters
- Description：DIODE ZENER 3.9V 1W DO41
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Zener (Nom) (Vz)：3.9 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：9 Ohms
- Current - Reverse Leakage @ Vr：50 µA @ 1 V
- Operating Temperature：-65°C ~ 200°C
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Central Semiconductor Corp 1N4730A TR is a silicon Zener diode designed for voltage regulation. It features a nominal Zener voltage of 3.9 V with a 5% tolerance, tested at a current of 64 mA. The device dissipates up to 1.0 W at 50°C ambient temperature and operates within a junction temperature range of -65°C to +200°C. Electrical characteristics include a maximum Zener impedance of 9.0 Ω at the test current and a reverse leakage current of 50 µA at 1.0 V. The component utilizes a DO-41 glass case package.
Feature Summary
- Highly reliable silicon planar construction for industrial and commercial applications
- Glass passivated junction providing stable voltage regulation
- Flexible axial-lead mounting terminals for through-hole installation
Applications
- Voltage stabilization circuits
- Waveform clipping applications
- Reference voltage generation in computer systems
Procurement Notes
Verify End-of-Life status before procurement as this specific part number has been discontinued by the manufacturer. Confirm availability of last-time buy inventory or alternative sources if immediate replacement is required. Ensure ordering suffixes match requested plating options such as Tin/Lead or Lead-Free variants.
Selection Notes
Select this component for designs requiring a precise 3.9 V reference point with low impedance characteristics. Consider the wide operating temperature range suitable for harsh environments. Evaluate thermal management requirements given the 1.0 W power dissipation rating in the DO-41 package.
Part Context
This device belongs to the 1N4728A through 1N4764A series of 1-watt silicon Zener diodes. The series offers extensive voltage selection from 3.3 V to 100 V with standard 5% tolerance. These components are widely used in general-purpose voltage regulation tasks across various electronic industries.
Replacement Considerations
No direct replacement part numbers are provided by the manufacturer for this discontinued item. Contact engineering support for assistance in locating alternate sources or equivalent devices.
