RSS-3.33.3 Equivalent & Substitute Parts Reference

Part Overview

The RSS-3.33.3 by Recom Power is an isolated DC-DC converter module rated for 1W output power, supplying 3.3V at 303mA from a 3V to 3.6V input. As part of the ECONOLINE RSS (1W) series, it features short circuit protection (SCP), 1kV isolation, and is designed for ITE (commercial) applications. The module is surface-mount with an 8-SMD Module, 5 Leads package. The part is classified as obsolete, necessitating the identification of equivalent alternatives to support ongoing production or maintenance requirements.

Substiute Parts

RSS-3.33.3

Recom PowerIn Stock: 1087RSS-3.33.3 Datasheet

Current PartRFQ

R1S-3.33.3

Recom PowerIn Stock: 995R1S-3.33.3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Equivalent and substitute parts for the RSS-3.33.3 are strictly identified based on matching the following key parameters: Isolated module type, single output, input voltage range (3V–3.6V), output voltage (3.3V), maximum output current (303mA), output power (1W), isolation voltage (1kV), commercial ITE application rating, short circuit protection (SCP), surface mount configuration, 8-SMD Module 5 Leads package, RoHS3 compliance, and matching moisture sensitivity and REACH status. Only parts with identical or superseding values in these categories are considered direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The RSS-3.33.3 is designated as obsolete, while the R1S-3.33.3 remains active and maintains ROHS3 compliance, unlimited moisture sensitivity (MSL 1), and REACH unaffected status. These factors align the R1S-3.33.3 as a compliant, direct substitute without changes in environmental or regulatory qualifications.

Frequently Asked Questions (FAQ)

Q1: What are the key criteria for substituting RSS-3.33.3 with another part?
A1: Substitution is based strictly on identical input range (3V–3.6V), output voltage (3.3V), output current (303mA), output power (1W), isolation voltage (1kV), number of outputs (1), type, features (SCP), mounting style, package, RoHS compliance, moisture sensitivity, and REACH status.

Q2: Are there any differences in package between RSS-3.33.3 and its substitute R1S-3.33.3?
A2: Both use the 8-SMD Module, 5 Leads package. The physical dimensions differ slightly; RSS-3.33.3 measures 0.50" x 0.32" x 0.29", while R1S-3.33.3 is 0.50" x 0.42" x 0.28".

Q3: Is the R1S-3.33.3 compliant with the same environmental and regulatory standards as RSS-3.33.3?
A3: Yes. Both parts are ROHS3 compliant, REACH unaffected, and have an Unlimited Moisture Sensitivity Level (MSL 1).

Q4: Can R1S-3.33.3 serve as a drop-in replacement in existing designs?
A4: R1S-3.33.3 matches all key electrical and compliance parameters. Only the slight physical dimension differences should be verified in the intended layout.

Q5: What are the operational advantages of the R1S-3.33.3 compared to RSS-3.33.3?
A5: The R1S-3.33.3 offers a wider operating temperature range (-40°C ~ 100°C) compared to the RSS-3.33.3, which operates from -40°C to 85°C. All other electrical characteristics are identical.