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1N4750A BK TIN/LEAD
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Product Detailed Parameters
- Description：27V 1W TH DIODE-ZENER SINGLE: ST
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Box
- Voltage - Zener (Nom) (Vz)：27 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：35 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 20.6 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 1N4750A BK TIN/LEAD is a single silicon Zener diode manufactured by Central Semiconductor Corp. It features a nominal Zener voltage of 27 V with a 5% tolerance and a maximum power dissipation of 1 W. The device operates within a temperature range of -65 °C to +200 °C. Key electrical characteristics include a maximum reverse leakage current of 5 µA, a Zener impedance of 35 Ohms, and a test current of 9.5 mA. It utilizes a DO-41-2 through-hole package.
Feature Summary
- Provides stable voltage regulation via Zener breakdown in the reverse bias region.
- Engineered for high thermal stability with an extended operating temperature range up to 200 °C.
- Constructed using silicon material for reliable performance in industrial and commercial applications.
Applications
- Industrial voltage regulation circuits
- Commercial power supply protection
- Computer application voltage reference
Procurement Notes
Verify the specific ordering suffix 'BK TIN/LEAD' against the manufacturer's official documentation to confirm lead-free status or plating specifications. Ensure the DO-41-2 package dimensions match the target PCB footprint. Confirm RoHS compliance requirements align with the tin/lead designation before finalizing procurement orders.
Selection Notes
Select this component when a 27 V Zener reference is required in a through-hole configuration. The 1 W power rating supports moderate current loads. Verify that the 35 Ohm impedance meets the circuit's noise and regulation sensitivity requirements. Ensure the 9.5 mA test current aligns with the design's biasing conditions.
Part Context
This part belongs to the 1N47 series of axial-lead Zener diodes produced by Central Semiconductor. The series covers a wide voltage range from 3.3 V to 100 V with consistent 1 W power handling. The 1N4750A variant specifically targets the 27 V segment of this standardized lineup.
Replacement Considerations
Cross-reference with other manufacturers offering the 1N4750A specification. Verify pinout compatibility and ensure equivalent Zener voltage tolerance and power dissipation ratings are maintained for direct substitution.
