FOD3184TSR2 Equivalent & Substitute Parts

Part Overview

The FOD3184TSR2 is a 3A gate driver optical coupler manufactured by onsemi, providing 5000Vrms isolation for single-channel applications. This component integrates optical isolation technology with high-speed gate drive capability, designed for power electronics applications requiring galvanic isolation between control and power circuits.

The FOD3184TSR2 carries a "Not For New Designs" status, making identification of equivalent and substitute parts essential for ongoing production support and design continuity. Substitute parts must maintain electrical compatibility across isolation voltage, output current capability, propagation delay, and thermal operating range to ensure functional equivalence in existing circuit implementations.

Substiute Parts

FOD3184TSR2

onsemiIn Stock: 1038FOD3184TSR2 Datasheet

Current PartRFQ

FOD3184TSR2V

onsemiIn Stock: 862FOD3184TSR2V Datasheet

DirectRFQ

LTV-3150S-TA1

Lite-On Inc.In Stock: 2424LTV-3150S-TA1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FOD3184TSR2 are classified based on electrical parameter compatibility within the optical coupler gate driver category. The primary substitution criteria are:

Direct Substitutes maintain identical or superior performance across all critical parameters: 5000Vrms isolation voltage, 3A peak output current, 210ns maximum propagation delay, 35kV/µs common mode transient immunity, and 8-SMD surface mount packaging. These parts are pin-compatible and functionally interchangeable without circuit modification.

Similar Substitutes share the same isolation voltage (5000Vrms), single-channel configuration, and 8-SMD package form factor, but exhibit reduced output current capability (1A peak versus 3A), longer propagation delay (400ns versus 210ns), and lower common mode transient immunity (15kV/µs versus 35kV/µs). These parts are suitable only for applications where the lower current and speed specifications are acceptable.

The FOD3184TSR2V represents the active production equivalent from onsemi, maintaining all electrical specifications while offering current product status and broader approval agency certifications. The LTV-3150S-TA1 from Lite-On Inc. provides an alternative from a different manufacturer but with reduced performance margins in output current and transient immunity.

Parameter Comparison

Engineering Selection Recommendations

FOD3184TSR2V is the primary substitute for the FOD3184TSR2. Both parts are manufactured by onsemi with identical electrical specifications, 8-SMD surface mount packaging, and ROHS3 compliance. The FOD3184TSR2V carries Active product status, ensuring continued availability and manufacturing support. Approval agency certifications for FOD3184TSR2V include IEC/EN/DIN and UL standards, providing broader regulatory coverage than the original part.

LTV-3150S-TA1 from Lite-On Inc. is a secondary alternative suitable only for applications where reduced output current (1A versus 3A), extended propagation delay (400ns versus 210ns), and lower common mode transient immunity (15kV/µs versus 35kV/µs) are acceptable. This part maintains 5000Vrms isolation voltage, single-channel configuration, and 8-SMD surface mount form factor. The LTV-3150S-TA1 supports an extended operating temperature range to 105°C and carries Active product status with cUR, IEC/EN/DIN, and UR certifications.

For applications requiring the full 3A output current and 35kV/µs transient immunity of the original FOD3184TSR2, the FOD3184TSR2V is the only direct equivalent. The LTV-3150S-TA1 should be selected only when circuit design permits operation within its reduced performance specifications.

Frequently Asked Questions (FAQ)

Q: Can FOD3184TSR2V be used as a direct replacement for FOD3184TSR2?

A: Yes. The FOD3184TSR2V maintains identical electrical specifications, including 3A peak output current, 210ns propagation delay, 35kV/µs common mode transient immunity, and 8-SMD surface mount packaging. No circuit modifications are required for substitution.

Q: What are the limitations of using LTV-3150S-TA1 as a substitute?

A: The LTV-3150S-TA1 has reduced output current capability (1A peak versus 3A), longer propagation delay (400ns versus 210ns), and lower common mode transient immunity (15kV/µs versus 35kV/µs). Applications requiring the full 3A output current or faster switching response cannot use this part.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All listed substitute parts use 8-SMD, Gull Wing surface mount packaging, maintaining compatibility with existing PCB layouts designed for the FOD3184TSR2.

Q: What is the significance of "Not For New Designs" status on the FOD3184TSR2?

A: This status indicates the part is in mature or end-of-life phase and is not recommended for new circuit designs. The FOD3184TSR2V, with Active status, is the recommended choice for both new designs and ongoing production support of existing applications.

Q: Do all substitute parts meet the same regulatory compliance standards?

A: The FOD3184TSR2V and LTV-3150S-TA1 both achieve ROHS3 compliance and carry UL or equivalent certifications. The FOD3184TSR2V includes IEC/EN/DIN certification, while the LTV-3150S-TA1 includes cUR and UR certifications. Both parts are suitable for regulated applications.

Q: What is the moisture sensitivity level for these parts?

A: All listed parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.