RSS-243.3/P Equivalent & Substitute Parts Reference

Part Overview

The RSS-243.3/P from Recom Power is an isolated DC-DC converter module providing a single 3.3V output with up to 303mA current capability, accepting inputs from 21.6V to 26.4V and yielding a rated output power of 1W. The product status is Obsolete, necessitating identification of suitable alternative models for designs requiring continued availability, consistent form-factor, and equivalent electrical specifications.

Substiute Parts

RSS-243.3/P

Recom PowerIn Stock: 876RSS-243.3/P Datasheet

Current PartRFQ

R1S-243.3/P

Recom PowerIn Stock: 960R1S-243.3/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the RSS-243.3/P is strictly determined based on matching the following allowed electrical and mechanical parameters: input voltage range (21.6V – 26.4V), output voltage (3.3V), output current (303mA), output power (1W), isolation voltage (1kV), efficiency (75%), number of outputs (1), operating temperature, mounting type (Surface Mount), package/case (8-SMD Module, 5 Leads), RoHS and REACH compliance, and application suitability (ITE Commercial). Only parts meeting all these criteria and compliance certifications are included.

Parameter Comparison

Engineering Selection Recommendations

The RSS-243.3/P is classified as obsolete and should be substituted with a compliant, active alternative for ongoing designs and support. The R1S-243.3/P matches all mandatory electrical parameters, compliance certifications (RoHS3, REACH), and mounting requirements, making it suitable for substitution within applications previously utilizing RSS-243.3/P. Inventory levels of the substitute part support continued availability for production.

Frequently Asked Questions (FAQ)

Q1: What are the mandatory parameters for substituting RSS-243.3/P?
A1: Substitution requires that input voltage range, output voltage, output current, output power, isolation voltage, efficiency, number of outputs, operating temperature, mounting type, package/case dimensions, RoHS and REACH compliance, and application suitability (ITE Commercial) are identical or compatible.

Q2: Is the R1S-243.3/P package physically compatible with the RSS-243.3/P?
A2: Both components share the 8-SMD Module, 5 Leads package style, ensuring mechanical compatibility. Note the dimensional differences: R1S-243.3/P is wider and slightly lower in height.

Q3: Are there differences in electrical performance between RSS-243.3/P and R1S-243.3/P?
A3: Electrical performance parameters, including input range, output voltage, output current, power rating, isolation voltage, and efficiency, are identical.

Q4: Are compliance certifications equivalent between the two parts?
A4: Both devices are ROHS3 Compliant, REACH Unaffected, and have MSL 1 (Unlimited), maintaining required regulatory standards.

Q5: Does the substitute part support the same operating temperature range?
A5: The R1S-243.3/P supports an extended range of -40°C to 100°C, exceeding the RSS-243.3/P specification of -40°C to 85°C.

Q6: What should be validated when selecting the substitute part?
A6: Confirm form-factor fit when replacing RSS-243.3/P with R1S-243.3/P by reviewing size and footprint, ensuring compatibility with existing PCB layouts. All other key parameters match the original device.

Q7: Is the substitute suitable for ITE (Commercial) applications?
A7: Yes, both parts are specified for ITE (Commercial) use.