Equivalent & Substitute Parts for RSS-053.3

Part Overview

The Recom Power RSS-053.3 is an isolated DC-DC converter belonging to the ECONOLINE RSS (1W) series. It is designed for applications requiring a single 3.3V output with up to 303mA current and operates over a 4.5V to 5.5V input range. The converter features 1kV isolation, SCP (short circuit protection), and is RoHS3 compliant. This model is Surface Mount in an 8-SMD Module, 5 Leads package with dimensions of 0.50" L x 0.32" W x 0.29" H (12.8mm x 8.2mm x 7.3mm). The RSS-053.3 is classified as obsolete, necessitating the selection of alternative DC-DC isolated module part numbers with matching electrical and mechanical parameters.

Substiute Parts

RSS-053.3

Recom PowerIn Stock: 967RSS-053.3 Datasheet

Current PartRFQ

R1S-053.3

Recom PowerIn Stock: 1114R1S-053.3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined strictly by matching the following key electrical and mechanical parameters within the isolated DC-DC converter module category:

• Isolated Module type
• 1 Output
• Input voltage range: 4.5V to 5.5V
• Output voltage: 3.3V
• Maximum output current: 303mA
• Output power: 1W
• Isolation voltage: 1kV
• Efficiency: 75%
• Features: SCP
• Mounting type: Surface Mount
• Package / Case: 8-SMD Module, 5 Leads
• RoHS3 compliance
• Operating temperature compatibility

Only parts explicitly listed with these matching parameters are considered valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

The RSS-053.3 is classified as obsolete, and continued component availability cannot be guaranteed. The R1S-053.3 from Recom Power retains active status, meets all RoHS3 compliance requirements, and is unaffected under REACH, ensuring suitability for use in current designs. The Moisture Sensitivity Level is consistent between the two parts (MSL 1). Substitute selection, based solely on the product status and provided environmental certifications, supports migration from RSS-053.3 to R1S-053.3.

Frequently Asked Questions (FAQ)

Q: What electrical parameters are essential for substituting the RSS-053.3?
A: The substitute part must match the input voltage range (4.5V-5.5V), output voltage (3.3V), output current (303mA), power rating (1W), and provide 1kV isolation.

Q: Are there differences in package or mounting options between RSS-053.3 and R1S-053.3?
A: Both parts are Surface Mount and use an 8-SMD Module, 5 Leads package. There are minor differences in the size/dimensions.

Q: Is RoHS3 compliance maintained between the original part and the substitute?
A: Both RSS-053.3 and R1S-053.3 are RoHS3 Compliant.

Q: Is further environmental or regulatory qualification needed for the substitute?
A: Both parts have MSL 1 (Unlimited) and REACH Unaffected status, so no additional qualification is required based on the provided information.

Q: Will the operating temperature difference affect substitution?
A: Both parts cover -40°C ~ 85°C as a minimum; the R1S-053.3 operates up to 100°C. This does not limit substitution for applications requiring up to 85°C.