1N4751A_S00Z Zener Diode Equivalent & Substitute Parts

Part Overview

The 1N4751A_S00Z is a 30 V, 1 W Zener diode manufactured by onsemi in a through-hole DO-41 package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity. The part operates across a temperature range of -65°C to 200°C and maintains ±5% voltage tolerance specifications. Substitute parts must match the electrical characteristics and physical packaging requirements to ensure direct compatibility in existing circuit designs.

Substiute Parts

1N4751A_S00Z

onsemiIn Stock: 9711N4751A_S00Z Datasheet

Current PartRFQ

1N4751A

Lumimax Optoelectronic TechnologyIn Stock: 42271N4751A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1N4751A_S00Z are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Zener voltage: 30 V nominal
• Maximum power dissipation: 1 W
• Voltage tolerance: ±5%
• Maximum impedance: 40 Ohms
• Reverse leakage current: 5 µA @ 22.8 V
• Operating temperature range: -65°C to 200°C
• Mounting type: Through Hole
• Package designation: DO-41 or equivalent axial configuration

The 1N4751A manufactured by Lumimax Optoelectronic Technology satisfies all specified electrical and mechanical parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The 1N4751A manufactured by Lumimax Optoelectronic Technology is a qualified substitute for the obsolete 1N4751A_S00Z. Selection is based on the following factors:

Electrical Compatibility: All electrical parameters match exactly, including zener voltage, power rating, tolerance, impedance, and reverse leakage specifications. The operating temperature range is identical.

Physical Compatibility: Both parts utilize the DO-41 through-hole axial package, ensuring mechanical compatibility with existing PCB layouts and component placement equipment.

Product Status: The Lumimax part carries Active product status, providing supply chain continuity and long-term availability compared to the obsolete onsemi original.

Compliance: The Lumimax substitute is RoHS Compliant and REACH Unaffected, meeting current regulatory requirements. Both parts carry identical ECCN and HTSUS classifications.

Packaging: The Lumimax part is supplied in Tape & Box format, suitable for automated assembly processes. The onsemi original packaging specification was not detailed in available data.

Frequently Asked Questions (FAQ)

Q: Can the 1N4751A from Lumimax be used as a direct replacement for the 1N4751A_S00Z from onsemi?

A: Yes. Both parts share identical electrical specifications (30 V zener voltage, 1 W power rating, ±5% tolerance, 40 Ohms maximum impedance, 5 µA reverse leakage) and operate across the same temperature range (-65°C to 200°C). Both use the DO-41 through-hole axial package.

Q: What is the significance of the product status difference between the two parts?

A: The onsemi 1N4751A_S00Z is classified as Obsolete, indicating discontinued manufacturing and limited availability. The Lumimax 1N4751A is Active, ensuring ongoing production and supply chain availability for new designs and replacement requirements.

Q: Are there any compliance or certification differences between these parts?

A: The Lumimax substitute is explicitly RoHS Compliant. Both parts are REACH Unaffected and carry identical ECCN (EAR99) and HTSUS (8541.10.0050) classifications, meeting regulatory requirements for export and trade.

Q: Does the packaging format affect substitution compatibility?

A: The Lumimax part is supplied in Tape & Box format, which is standard for automated assembly. The component itself uses the DO-41 package, identical to the original. Packaging format does not affect electrical or mechanical compatibility in the circuit.

Q: What parameters must match for a part to qualify as a substitute for the 1N4751A_S00Z?

A: Critical parameters include zener voltage (30 V), maximum power dissipation (1 W), voltage tolerance (±5%), maximum impedance (40 Ohms), reverse leakage current (5 µA @ 22.8 V), operating temperature range (-65°C to 200°C), mounting type (Through Hole), and package configuration (DO-41 axial).

Q: Can parts with different impedance or leakage specifications be used?

A: No. Impedance and reverse leakage current are specified parameters that affect circuit performance and stability. Substitutes must match the maximum impedance of 40 Ohms and reverse leakage of 5 µA @ 22.8 V to ensure equivalent circuit behavior.