FODM3012R3 Optoisolator Equivalent & Substitute Parts

Part Overview

The FODM3012R3 is a 3.75kV isolation optoisolator with triac output, designed for single-channel switching applications in surface mount packages. This component features a 4-SMD gull wing configuration and operates across the industrial temperature range of -40°C to 100°C. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

FODM3012R3

onsemiIn Stock: 875FODM3012R3 Datasheet

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FODM3053R2V-NF098

onsemiIn Stock: 2137FODM3053R2V-NF098 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FODM3012R3 is determined by strict equivalence across the following critical parameters:

• Isolation voltage rating: 3750Vrms minimum
• Output type: Triac configuration
• Number of channels: Single channel
• LED trigger current: 5mA maximum
• On-state RMS current: 70mA maximum
• Hold current: 300µA typical
• Forward voltage: 1.2V typical
• DC forward current: 60mA maximum
• Operating temperature range: -40°C to 100°C
• Package configuration: 4-SMD, Gull Wing surface mount

The FODM3053R2V-NF098 meets all these electrical and mechanical requirements, making it a direct functional equivalent despite differences in off-state voltage rating and dV/dt performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The FODM3053R2V-NF098 is the recommended substitute for the obsolete FODM3012R3. Both components share identical electrical performance across all critical switching parameters: isolation voltage, trigger current, on-state current, hold current, and forward voltage characteristics. The substitute part maintains the same 4-SMD gull wing package configuration and operating temperature range, ensuring direct mechanical and electrical compatibility.

The FODM3053R2V-NF098 offers enhanced specifications in off-state voltage (600V versus 250V) and static dV/dt performance (1kV/µs versus 10V/µs typical), providing superior transient immunity in switching applications. The substitute part carries active product status with ROHS3 compliance and updated regulatory certifications (cUR, UR, VDE), making it suitable for new designs and legacy system replacements.

Frequently Asked Questions (FAQ)

Q: Can FODM3053R2V-NF098 directly replace FODM3012R3 in existing designs?

A: Yes. Both parts share identical isolation voltage (3750Vrms), output type (triac), channel configuration (single), trigger current (5mA max), on-state current (70mA max), hold current (300µA), forward voltage (1.2V), and package format (4-SMD gull wing). The substitute part is electrically and mechanically compatible.

Q: What are the differences between these two parts?

A: The primary differences are product status and enhanced performance specifications. FODM3053R2V-NF098 is active production versus obsolete status for FODM3012R3. The substitute offers higher off-state voltage rating (600V versus 250V) and superior dV/dt performance (1kV/µs versus 10V/µs typical). Regulatory certifications differ: FODM3012R3 carries BSI, CSA, UL approval; FODM3053R2V-NF098 carries cUR, UR, VDE approval with ROHS3 compliance.

Q: Are there packaging differences?

A: Both parts use identical 4-SMD gull wing surface mount packages. FODM3053R2V-NF098 is supplied in Tape & Reel format, while FODM3012R3 packaging format is not specified. This does not affect electrical or mechanical compatibility.

Q: Which certifications apply to each part?

A: FODM3012R3 carries BSI, CSA, and UL approvals. FODM3053R2V-NF098 carries cUR, UR, and VDE approvals with ROHS3 compliance. Selection should be based on specific regulatory requirements for your application region.

Q: Is the substitute part suitable for industrial temperature applications?

A: Yes. Both parts operate across the identical temperature range of -40°C to 100°C, supporting industrial and extended commercial applications.