Equivalent & Substitute Parts Reference for RS 4FS

Part Overview

The RS 4FS, manufactured by Sanken Electric USA Inc., is a general-purpose diode with a maximum reverse voltage of 1500 V and average rectified current rating of 2.5A. It features standard recovery speed and is packaged in an axial through-hole format. The RS 4FS is currently listed as obsolete, making it necessary to identify suitable substitute parts to ensure continuity in applications where this component is used. Replacement parts must adhere strictly to the key electrical and mechanical parameters specified for the RS 4FS.

Substiute Parts

RS 4FS

Sanken Electric USA Inc.In Stock: 1013RS 4FS Datasheet

Current PartRFQ

BY228GP-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 2114BY228GP-E3/54 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RS 4FS must strictly match the key electrical and mechanical characteristics: maximum reverse voltage (1500 V), average rectified current (2.5A), standard recovery speed, reverse recovery time (trr), and through-hole axial packaging. Only parts explicitly specified with these parameters can be considered direct substitutes. Substitution grouping is based on equal or better ratings in these key parameters while maintaining the specified mounting and package type.

Parameter Comparison

Engineering Selection Recommendations

When selecting a substitute for the RS 4FS, consideration should be given to the product status and regulatory compliance. The RS 4FS is obsolete, whereas BY228GP-E3/54 is listed as active, facilitating ongoing availability. Both devices hold identical HTSUS and ECCN classifications and share a Moisture Sensitivity Level of 1 (Unlimited). The substitute part BY228GP-E3/54 is documented as ROHS3 compliant and REACH unaffected.

Frequently Asked Questions (FAQ)

Q: What are the primary criteria for selecting a substitute for RS 4FS?
A: The main criteria are matching maximum DC reverse voltage (1500 V), average rectified current (2.5A), standard recovery speed, reverse recovery time, through-hole axial package, and moisture sensitivity level.

Q: Is the package type equivalent between RS 4FS and BY228GP-E3/54?
A: Both use an axial, through-hole mounting type. BY228GP-E3/54 specifies the DO-201AD axial case.

Q: Does the reverse recovery time (trr) of BY228GP-E3/54 differ from RS 4FS?
A: RS 4FS has a reverse recovery time of 1 µs; BY228GP-E3/54 lists 2 µs.

Q: Are there regulatory or compliance differences relevant to substitute selection?
A: Both parts have the same ECCN (EAR99) and HTSUS code (8541.10.0080). BY228GP-E3/54 is ROHS3 compliant and REACH unaffected; RS 4FS does not specify RoHS or REACH status.

Q: Should inventory status be considered?
A: Inventory status is relevant only for availability. The RS 4FS is obsolete; BY228GP-E3/54 is active and in stock.