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1N4729A BK TIN/LEAD
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Product Detailed Parameters
- Description：DIODE ZENER 3.6V 1W DO41
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- Voltage - Zener (Nom) (Vz)：3.6 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：10 Ohms
- Current - Reverse Leakage @ Vr：100 µA @ 1 V
- Operating Temperature：-65°C ~ 200°C (TJ)
- 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 1N4729A BK TIN/LEAD is a silicon Zener diode with a nominal voltage of 3.6 V and a tolerance of ±5%. It operates in the DO-41 through-hole package with a power dissipation rating of 1.0 W at 50°C. The device features a maximum reverse current of 100 µA at 1.0 V and a maximum Zener impedance of 10 Ω at the test current of 69 mA. It supports an operating temperature range from -65°C to +200°C.
Feature Summary
- Provides stable voltage regulation for industrial, commercial, entertainment, and computer applications.
- Features a highly reliable silicon construction designed for stabilizing and clipping circuits.
- Utilizes a glass body encapsulation within the DO-41 axial leaded case.
Applications
- Voltage stabilization circuits
- Signal clipping applications
- Industrial equipment power supplies
- Commercial electronic systems
Procurement Notes
Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm the presence of the TIN/LEAD suffix indicates specific plating requirements. Ensure compatibility with existing circuit designs regarding thermal management and voltage ratings before finalizing procurement decisions.
Selection Notes
Select this component when a precise 3.6 V reference is required in high-power environments. The DO-41 package facilitates easy integration into through-hole PCB layouts. Consider the wide operating temperature range for harsh environmental conditions. Evaluate the low impedance characteristics for stable performance under varying load currents.
Part Context
This part belongs to the 1N4728A series of 1-watt silicon Zener diodes manufactured by Central Semiconductor Corp. The series covers a voltage range from 3.3 V to 100 V with consistent 5% tolerance across all variants. These components are widely used in general-purpose voltage regulation tasks requiring robust performance.
Replacement Considerations
Official documentation classifies the 1N4729A as End of Life (EOL) with no direct replacement provided by Central Semiconductor. Engineers must identify alternative sources or equivalent parts from other manufacturers to maintain supply continuity.
