Equivalent & Substitute Parts Reference for RR1LAM4STR (Rohm Semiconductor)

Part Overview

The RR1LAM4STR from Rohm Semiconductor is a general-purpose rectifier diode categorized under "Diodes, Rectifiers" with a voltage rating of 400V and a current rating of 1A. It is designed for surface-mount applications using the SOD-128 package, with the supplier-specific PMDTM footprint. The product status is "Not For New Designs," indicating the need to identify substitute or equivalent models for ongoing and future engineering requirements. Alternative part evaluation is necessary to maintain design continuity and inventory availability.

Substiute Parts

RR1LAM4STR

Rohm SemiconductorIn Stock: 342429RR1LAM4STR Datasheet

Current PartRFQ

GS1GAFC_R1_00001

Panjit International Inc.In Stock: 3042GS1GAFC_R1_00001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped exclusively by matching the following specified parameters: voltage rating, current rating, forward voltage at rated current, speed, reverse leakage current, mounting type, operating junction temperature, environmental compliance, moisture sensitivity level, regulatory status, package, and supplier device package. All included substitutes have verified parameter equivalence within these categories.

Parameter Comparison

Engineering Selection Recommendations

The main part, RR1LAM4STR, is marked "Not For New Designs." For ongoing product releases or inventory extensions, use substitute parts with matching RoHS3 compliance, identical ECCN and HTSUS codes, verified REACH status, and unlimited moisture sensitivity level (MSL 1). Confirm the compatibility of mounting style and package dimensions according to the listed parameters.

Frequently Asked Questions (FAQ)

Q1: What are the mandatory substitution criteria for RR1LAM4STR?
A1: Substitution is based on voltage rating, current rating, forward voltage, recovery speed, reverse leakage current, mounting type, operating temperature, environmental compliance, and regulatory codes.

Q2: Is the substitute part GS1GAFC_R1_00001 compatible with surface mount applications?
A2: Both RR1LAM4STR and GS1GAFC_R1_00001 are rated for surface mount installation.

Q3: Does the substitute offer the same reverse and forward voltage ratings?
A3: Yes, both parts have a DC reverse voltage (Vr) of 400V and forward voltage (Vf) of 1.1V @ 1A.

Q4: How do packages SOD-128 and DO-221AC (SMAF-C) differ for design purposes?
A4: Refer to each manufacturer’s package outline and footprint for direct mechanical comparability, as package types differ but are classified under comparable surface-mount families.

Q5: Are both main and substitute parts compliant with RoHS3 and REACH?
A5: Yes, both components are designated RoHS3 compliant and REACH unaffected according to the provided data.

Q6: Is there any difference in moisture sensitivity (MSL)?
A6: No, both the main and substitute parts have a moisture sensitivity level of 1 (unlimited floor life).