Equivalent & Substitute Parts for RR1VWM4STR

Part Overview

RR1VWM4STR by Rohm Semiconductor is a diode in the rectifiers category, identified as "DIODE GEN PURP 400V 1A PMDE" and supplied in cut tape and Digi-Reel®. The device is intended for general-purpose rectification, with a maximum reverse voltage of 400 V, an average rectified current of 1A, and a maximum forward voltage of 1.2 V at 1A. The diode is supplied in a surface-mount PMDE package with a maximum junction temperature of 175°C. The product status is "Not For New Designs," making it necessary to identify equivalent or substitute models for ongoing or future design requirements.

Substiute Parts

RR1VWM4STR

Rohm SemiconductorIn Stock: 10915RR1VWM4STR Datasheet

Current PartRFQ

RR1VWM4STFTR

Rohm SemiconductorIn Stock: 30954RR1VWM4STFTR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are determined using the following explicit key parameters: manufacturer, product category, maximum reverse voltage (Vr), average rectified current (Io), maximum forward voltage at specified forward current (Vf @ If), switching speed category, maximum reverse leakage current, mounting type, package, supplier device package, maximum operating junction temperature, RoHS status, moisture sensitivity level (MSL), and REACH status. Only substitute parts with identical or matching criteria in these parameters are grouped as equivalents.

Parameter Comparison

Engineering Selection Recommendations

Both RR1VWM4STR and RR1VWM4STFTR have matching compliance and certification statuses, including RoHS3 compliance, MSL 1 (unlimited), and REACH unaffected. Both are categorized as "Not For New Designs" according to their product status, aligning their appropriate use solely for sustaining existing applications. Substitute selection can proceed based on inventory availability and identical regulatory compliance.

Frequently Asked Questions (FAQ)

Q1: What are the primary criteria for substituting diodes in the rectifiers category like RR1VWM4STR?
A1: Primary criteria include maximum reverse voltage, average rectified current, forward voltage at rated current, reverse leakage current, speed classification, mounting type, package, and supplier device package, along with compliance statuses and maximum junction temperature.

Q2: Is PMDE package compatibility required when substituting RR1VWM4STR?
A2: Yes, PMDE and 2-SMD, Flat Leads must match to ensure footprint and mounting compatibility.

Q3: Are RR1VWM4STR and RR1VWM4STFTR differentiated by electrical parameters?
A3: No, both diodes share the same electrical parameters as explicitly provided.

Q4: Are the RoHS and REACH statuses important in substitution decisions for these diodes?
A4: Yes, these compliance requirements must be identical to meet environmental and industry standards.

Q5: Do "Not For New Designs" status parts support new product development?
A5: No, this status restricts use to sustaining or repairing existing designs.

Q6: Is automotive qualification (AEC-Q101) a required parameter for substituting RR1VWM4STR?
A6: Qualification information or grade is only used if provided for both parts. In this case, only RR1VWM4STFTR specifies "Automotive" and "AEC-Q101"; this does not affect equivalency based on the input parameters given.