FMW-24H Equivalent & Substitute Parts Engineering Reference

Part Overview

The Sanken Electric USA Inc. FMW-24H is a Schottky diode array categorized under diodes and rectifiers, featuring a 1 Pair Common Cathode configuration with 40 V maximum DC reverse voltage and a 15A average rectified current per diode. The device is housed in a TO-220-3 Full Pack through-hole package and is RoHS compliant. The status of this part is Obsolete, making it necessary to identify alternative models to ensure continuity in design, manufacturing, and ongoing system maintenance.

Substiute Parts

FMW-24H

Sanken Electric USA Inc.In Stock: 1050FMW-24H Datasheet

Current PartRFQ

FMB-24H

Sanken Electric USA Inc.In Stock: 3052FMB-24H Datasheet

Parametric EquivalentRFQ

RB205T-40

Rohm SemiconductorIn Stock: 2411RB205T-40 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is based strictly on matching the following key parameters, as these determine electric and mechanical equivalence for diodes and rectifiers:

• Diode Configuration
• Technology (Schottky)
• Voltage - DC Reverse (Vr) (Max)
• Current - Average Rectified (Io) (per Diode)
• Voltage - Forward (Vf) (Max) @ If
• Speed
• Current - Reverse Leakage @ Vr
• Operating Temperature - Junction
• Mounting Type
• Package / Case
• Supplier Device Package
• RoHS Status
• Moisture Sensitivity Level (MSL)

Parametric equivalents meet all these required attributes. Similar parts meet most, but not all, of the above criteria, such as varying in current rating or reverse leakage.

Parameter Comparison

Engineering Selection Recommendations

FMW-24H and FMB-24H are both marked as obsolete and share identical electrical and mechanical parameters and compliance (RoHS, MSL 1, EAR99). The FMB-24H is therefore a direct parametric equivalent by all provided measures. RB205T-40 from Rohm Semiconductor is active and features similar configuration and ratings but differs in current rating and supplier package nomenclature. All compared devices meet RoHS compliance and MSL 1 requirements as specified.

Frequently Asked Questions (FAQ)

Q1: What defines an acceptable substitute for FMW-24H in the diodes, rectifiers category?
A1: An acceptable substitute must match the diode configuration, technology (Schottky), reverse and forward voltage ratings, average rectified current, speed, reverse leakage current, package type, mounting style, operating temperature, and RoHS/MSL compliance.

Q2: Can FMB-24H be used in the same applications as FMW-24H?
A2: FMB-24H matches all key parameters specified for FMW-24H in electrical, mechanical, and compliance aspects.

Q3: What considerations exist for using RB205T-40 as a substitute?
A3: RB205T-40 offers a similar configuration and voltage ratings but has a lower current rating at 7.5A per diode and a different supplier device package type (TO-220FN vs. TO-220F).

Q4: Are ROHS and MSL compatibility maintained in the substitutes listed?
A4: All listed parts are RoHS compliant and rated MSL 1 (Unlimited).

Q5: How important is the package/case in substitution?
A5: The package/case must be the same or fully compatible (TO-220-3 Full Pack) to ensure mechanical and assembly compatibility. Differences in device package designation should be reviewed for pinout and thermal characteristics matching.