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1N4752A BK TIN/LEAD
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Product Detailed Parameters
- Description：33V 1W TH DIODE-ZENER SINGLE: ST
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Box
- Voltage - Zener (Nom) (Vz)：33 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：45 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 25.1 V
- Operating Temperature：-65°C ~ 150°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 1N4752A BK TIN/LEAD is a silicon Zener diode manufactured by Central Semiconductor Corp, designed for voltage regulation in through-hole applications. It features a DO-41 axial package with a maximum power dissipation of 1 W at 50°C ambient temperature. The nominal Zener voltage is 33 V with a tolerance of ±5%, tested at a current of 7.5 mA. Key electrical characteristics include a maximum reverse leakage current of 5 µA and a dynamic impedance of 45 Ω. The device operates within a temperature range of -65°C to +200°C junction temperature.
Feature Summary
- Hermetically sealed glass passivated junction construction
- Compression bonded design for high reliability
- Axial leaded DO-41 package suitable for through-hole mounting
Applications
- Industrial voltage regulation circuits
- Commercial power supply protection
- Computer system biasing networks
Procurement Notes
Verify the specific ordering suffix 'BK TIN/LEAD' against the manufacturer's official datasheet to confirm terminal finish composition and packaging configuration. Ensure compatibility with RoHS or non-RoHS requirements as tin/lead finishes may indicate specific compliance status. Confirm that the DO-41 package dimensions match the target PCB footprint before procurement.
Selection Notes
Select this component when a 33 V Zener reference with 1 W power handling is required in an axial package. Consider the 45 Ω dynamic impedance for noise-sensitive applications. Verify that the operating junction temperature will not exceed 200°C under worst-case thermal conditions. Compare leakage current specifications against circuit sensitivity requirements.
Part Context
This part belongs to the 1N47xxA series of 1 Watt Zener diodes produced by Central Semiconductor. The series covers a wide voltage range from 3.3 V to 100 V with 5% tolerance. These diodes are engineered for general-purpose voltage regulation tasks in harsh environments due to their hermetic sealing and high-temperature capability.
Replacement Considerations
Cross-reference with other manufacturers offering 1N4752A equivalents in DO-41 packages. Verify that substitute parts maintain the same 33 V nominal voltage, 1 W power rating, and 45 Ω dynamic impedance. Check for pinout polarity consistency and thermal resistance similarities.
