FSB50825AT Equivalent & Substitute Parts

Part Overview

The FSB50825AT is a Power Driver Module featuring a 3 Phase Inverter configuration with MOSFET technology, rated for 250 V at 3.6 A in a 23-PowerDIP Module package. This component is part of the Motion SPM® 5 series and is currently classified as obsolete. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for system redesign, maintenance, and continued product support where direct replacement is no longer available.

Substiute Parts

FSB50825AT

onsemiIn Stock: 1390FSB50825AT Datasheet

Current PartRFQ

NFA50460R47

onsemiIn Stock: 1630NFA50460R47 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FSB50825AT is determined by the following critical parameters:

• Configuration: 3 Phase Inverter topology must be maintained
• Isolation Voltage: 1500Vrms isolation requirement
• Series Compatibility: Motion SPM® 5 series alignment
• RoHS Compliance: ROHS3 Compliant status for regulatory adherence

The identified substitute part NFA50460R47 shares the same series designation, isolation voltage specification, and RoHS compliance status. While this substitute operates at higher voltage (600 V) and current (4 A) ratings compared to the original 250 V / 3.6 A specification, it maintains the same 3 Phase Inverter configuration and isolation characteristics. The substitute represents an active product within the same product family, providing continued availability and support.

Parameter Comparison

Engineering Selection Recommendations

The NFA50460R47 is classified as an active product with current manufacturing support and inventory availability. Both the original FSB50825AT and substitute NFA50460R47 maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and replacements.

Selection of the substitute part requires consideration of the following factors based on provided specifications:

• Both components share identical isolation voltage (1500Vrms) and series designation (Motion SPM® 5)
• The substitute operates at higher voltage and current ratings, which may require circuit redesign evaluation
• Mounting type differs between through-hole (original) and surface-mount (substitute), necessitating PCB layout modifications
• The substitute's active product status ensures continued availability and technical support

Frequently Asked Questions (FAQ)

Q: Can NFA50460R47 directly replace FSB50825AT in existing designs?

A: Direct pin-for-pin replacement is not possible due to different mounting types (through-hole versus surface-mount). PCB redesign is required. Additionally, the higher voltage and current ratings of the substitute must be evaluated within the context of the application circuit.

Q: What are the key compatibility criteria for substitution?

A: Substitution is based on matching the 3 Phase Inverter configuration, 1500Vrms isolation voltage, Motion SPM® 5 series designation, and ROHS3 compliance status. These parameters define the functional and regulatory equivalence between parts.

Q: Why is the substitute rated for higher voltage and current?

A: The NFA50460R47 represents a higher-performance variant within the same product family. The 600 V / 4 A ratings provide greater operational headroom compared to the original 250 V / 3.6 A specification.

Q: Are there packaging considerations for the substitute?

A: Yes. The original FSB50825AT uses a 23-PowerDIP Module through-hole package, while NFA50460R47 is supplied in Tape & Reel (TR) surface-mount packaging. This difference requires PCB layout and assembly process modifications.

Q: Do both parts meet the same regulatory standards?

A: Both components are ROHS3 compliant and REACH unaffected, satisfying equivalent regulatory requirements for industrial and commercial applications.