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1N4758A BK TIN/LEAD
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Product Detailed Parameters
- Description：56V 1W TH DIODE-ZENER SINGLE: ST
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Box
- Voltage - Zener (Nom) (Vz)：56 V
- Tolerance：±5%
- Power - Max：1 W
- Impedance (Max) (Zzt)：110 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 42.6 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 Central Semiconductor Corp 1N4758A BK TIN/LEAD is a silicon Zener diode designed for voltage regulation and clipping applications. It features a nominal Zener voltage of 56 V with a tolerance of ±5%. The device operates in the DO-41 axial through-hole package, providing a power dissipation rating of 1.0 W at 50°C ambient temperature. Key electrical characteristics include a maximum reverse leakage current of 5 µA at 42.6 V and a dynamic impedance of 110 Ω. The component supports an operating junction temperature range from -65°C to +200°C.
Feature Summary
- Provides stable voltage regulation using silicon planar technology within the 1N4758 series.
- Features glass passivation for hermetic sealing and enhanced environmental stability.
- Designed for high-reliability performance in industrial and commercial circuits.
Applications
- Industrial voltage regulation circuits
- Commercial power supply stabilization
- Entertainment equipment protection
Procurement Notes
Verify the specific ordering suffix 'BK TIN/LEAD' against the manufacturer's current datasheet to confirm lead composition and marking details. Ensure the procurement specification matches the required DO-41 package dimensions and thermal derating curves. Confirm RoHS compliance status if restricted materials are prohibited in the target assembly process.
Selection Notes
Select this component when a 56 V reference is required in a through-hole configuration. Consider the 110 Ω dynamic impedance for noise-sensitive designs. Verify that the 1.0 W power rating aligns with the circuit's thermal management capabilities. Compare against alternative manufacturers offering identical 1N4758 specifications for supply chain redundancy.
Part Context
This part belongs to the 1N4728A through 1N4764A series of silicon Zener diodes manufactured by Central Semiconductor. The series covers a voltage range from 3.3 V to 100 V with consistent 1.0 W power handling. These components are engineered for general-purpose applications requiring reliable voltage clamping and regulation in standard axial packages.
Replacement Considerations
Direct substitutes include the 1N4758A from onsemi (e.g., 1N4758A-T50A) and Micro Commercial Components (1N4758A-TP). Vishay offers the 1N4758A-T variant, though it may have different power ratings. Verify pinout compatibility and thermal characteristics before substitution.
