1N2129A Equivalent & Substitute Parts

Part Overview

The 1N2129A is a general-purpose rectifier diode manufactured by Solid State Inc., rated for 100 V DC reverse voltage and 70 A average rectified current in a stud mount DO-5 package configuration. This component is classified as Active product status and complies with ROHS3 standards. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility to ensure functional interchangeability in circuit applications requiring identical performance parameters.

Substiute Parts

1N2129A

Solid State Inc.In Stock: 9601N2129A Datasheet

Current PartRFQ

1N2129

Microchip TechnologyIn Stock: 9941N2129 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1N2129A are identified through parametric equivalence. The substitution logic is based on matching the following critical parameters: maximum DC reverse voltage (100 V), average rectified current rating (70 A), forward voltage characteristics (1.25 V @ 200 A), reverse leakage current (25 µA @ 100 V), recovery speed classification (Standard Recovery >500ns), stud mount mechanical configuration, and DO-5 package type. Parts meeting all these electrical and mechanical specifications are classified as parametric equivalents and direct substitutes. The 1N2129 from Microchip Technology satisfies all required parameters and is therefore a valid substitute for the 1N2129A.

Parameter Comparison

Engineering Selection Recommendations

The 1N2129 manufactured by Microchip Technology is a direct parametric equivalent to the 1N2129A. Both components maintain Active product status and are manufactured using Standard technology. The Microchip 1N2129 carries REACH Unaffected status, while the original 1N2129A is ROHS3 Compliant. Both parts share identical electrical ratings, mechanical mounting configuration, and thermal operating range. Selection between these parts is determined by supply chain availability, packaging preference (Box versus Bulk), and regulatory compliance requirements specific to the application. The Microchip variant currently maintains higher inventory availability at 974 pieces compared to 861 pieces for the Solid State Inc. original.

Frequently Asked Questions (FAQ)

Q: Can the 1N2129 from Microchip Technology be used as a direct replacement for the 1N2129A?

A: Yes. The 1N2129 is a parametric equivalent with identical electrical specifications including 100 V reverse voltage rating, 70 A average rectified current, 1.25 V forward voltage at 200 A, and 25 µA reverse leakage current. Both components use stud mount configuration in DO-5 package type and operate across the same temperature range (-65°C to 200°C).

Q: Are there packaging differences between the 1N2129A and 1N2129?

A: The primary packaging difference is the supplier delivery format. The 1N2129A is supplied in Box packaging, while the 1N2129 is supplied in Bulk packaging. Both components use identical DO-203AB, DO-5, Stud package configuration for the actual component.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching: maximum DC reverse voltage (100 V), average rectified current (70 A), forward voltage characteristics (1.25 V @ 200 A), reverse leakage current (25 µA @ 100 V), recovery speed classification (Standard Recovery >500ns), stud mount mechanical configuration, and DO-5 package type. All these parameters must match exactly for direct substitution.

Q: Do both parts meet the same compliance standards?

A: Both parts are classified as Active products using Standard technology. The 1N2129A is ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited). The 1N2129 carries REACH Unaffected status. Both share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Q: What is the operating temperature range for these diodes?

A: Both the 1N2129A and 1N2129 operate across a junction temperature range of -65°C to 200°C, providing identical thermal performance characteristics.