FODM3012R2 Optoisolator Equivalent & Substitute Parts

Part Overview

The FODM3012R2 is a 3.75kV isolation optoisolator with triac output, designed for single-channel AC switching applications in surface mount 4-SMD packaging. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The substitute part FODM3053R2V-NF098 maintains core electrical specifications while offering active product status and enhanced performance characteristics.

Substiute Parts

FODM3012R2

onsemiIn Stock: 2017FODM3012R2 Datasheet

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FODM3053R2V-NF098

onsemiIn Stock: 2137FODM3053R2V-NF098 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The FODM3053R2V-NF098 qualifies as a direct substitute based on the following critical parameters:

• Identical isolation voltage rating (3750Vrms)
• Identical output type (Triac)
• Identical channel count (1)
• Identical LED trigger current specification (5mA max)
• Identical on-state current rating (70mA max)
• Identical forward voltage and DC forward current characteristics
• Identical operating temperature range (-40°C to 100°C)
• Identical package and mounting configuration (4-SMD, Gull Wing, Surface Mount)
• Identical base product number (FODM30)

The substitute part differs in off-state voltage rating (600V vs 250V) and static dV/dt performance (1kV/µs vs 10V/µs), representing enhanced electrical capabilities suitable for more demanding switching environments.

Parameter Comparison

Engineering Selection Recommendations

The FODM3053R2V-NF098 is the appropriate selection for applications currently using the obsolete FODM3012R2. The substitute maintains all critical electrical and mechanical specifications required for functional equivalence. The active product status of FODM3053R2V-NF098 ensures ongoing availability and manufacturing support, eliminating supply chain risk associated with obsolete components.

The enhanced off-state voltage (600V vs 250V) and superior static dV/dt rating (1kV/µs vs 10V/µs typ) of the substitute part provide additional margin in high-speed switching and transient-rich environments. These improvements do not compromise backward compatibility with existing circuit designs.

Compliance certifications differ between the two parts (BSI, CSA, UL for the main part versus cUR, UR, VDE for the substitute), reflecting regional approval variations. The substitute part carries RoHS3 compliance status, whereas the main part does not specify RoHS compliance. Both parts maintain identical REACH and ECCN classifications.

Frequently Asked Questions (FAQ)

Q: Can FODM3053R2V-NF098 be used as a direct replacement for FODM3012R2 in existing designs?

A: Yes. The substitute part maintains identical isolation voltage, output type, channel configuration, trigger current, on-state current, forward voltage, and operating temperature specifications. The 4-SMD gull wing package and surface mount configuration are identical, enabling direct PCB-level substitution without design modification.

Q: What are the differences in electrical performance between these parts?

A: The primary differences are off-state voltage rating (600V vs 250V) and static dV/dt performance (1kV/µs vs 10V/µs typical). These represent enhanced capabilities in the substitute part, providing greater margin for transient suppression and high-speed switching applications. Both parts are functionally equivalent for standard AC switching applications within the specified parameter ranges.

Q: Why is the FODM3012R2 classified as obsolete?

A: Product obsolescence reflects manufacturer discontinuation decisions. The FODM3053R2V-NF098 serves as the active replacement, offering equivalent core functionality with enhanced electrical characteristics and ongoing manufacturing support.

Q: Are there packaging differences between these parts?

A: Both parts use identical 4-SMD gull wing surface mount packaging. The FODM3053R2V-NF098 is supplied in Tape & Reel format, while the FODM3012R2 packaging format is not specified. This does not affect electrical compatibility or PCB assembly compatibility.

Q: What compliance certifications apply to each part?

A: FODM3012R2 carries BSI, CSA, and UL approvals. FODM3053R2V-NF098 carries cUR, UR, and VDE approvals. The substitute part additionally specifies RoHS3 compliance. Both parts maintain identical REACH and ECCN classifications. Compliance selection should align with regional regulatory requirements for the target application.