Equivalent & Substitute Parts Reference for RB-053.3D/H

Part Overview

RB-053.3D/H is a DC-DC isolated module from Recom Power, designed for generating dual output voltages of +3.3V and -3.3V at up to 152mA each from a 4.5V to 5.5V input, within a 1W power rating. The product is an active part, widely used in ITE (Commercial) and Medical applications requiring isolated, small form-factor power solutions. Alternative models may be required based on inventory levels, multi-sourcing requirements, or corporate homologation strategies.

Substiute Parts

RB-053.3D/H

Recom PowerIn Stock: 93160RB-053.3D/H Datasheet

Current PartRFQ

E0503S-1WR3

Mornsun America, LLCIn Stock: 980E0503S-1WR3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is based strictly on matching all critical electrical and mechanical parameters: input voltage range, output voltages, output current ratings, number of outputs, total output power, isolation voltage (must be equal or higher), mounting type, package/case, efficiency, and environmental compliance (RoHS, REACH). Only parts meeting these limits are presented as substitutes.

Parameter Comparison

Engineering Selection Recommendations

Select only parts with a product status of "Active" to ensure ongoing manufacturer support and supply chain availability. ROHS3 or RoHS compliance and REACH Status as Unaffected are required for alignment with current environmental standards. Moisture Sensitivity Level (MSL) 1 (Unlimited) is matched for both referenced options, supporting robust logistics and manufacturing flow.

Frequently Asked Questions (FAQ)

Q1: What primary parameters must be matched for substituting a DC-DC isolated module like RB-053.3D/H?
A1: Input voltage range, output voltages, output current ratings per channel, total power capability, number of outputs, isolation voltage, mounting type, package/case, and environmental compliance.

Q2: Are mechanical dimensions and package identical for RB-053.3D/H and E0503S-1WR3?
A2: Yes, both use the 7-SIP Module, 5 Leads configuration, with identical external dimensions (0.77" x 0.24" x 0.40" or 19.7mm x 6.0mm x 10.2mm).

Q3: Can the higher isolation voltage of the E0503S-1WR3 (3 kV vs. 2 kV) affect compatibility?
A3: The substitute part provides equal or greater isolation voltage, which is electrically acceptable within allowed substitution parameters.

Q4: How important is RoHS and REACH status in selection?
A4: RoHS compliance and REACH status are mandatory for most modern designs to meet legal and internal environmental approval requirements.

Q5: Should the operating temperature range be considered in substitutions?
A5: Yes, only parts operating within or exceeding the minimum and maximum temperature specifications of the primary device are acceptable substitutes.

Q6: Is efficiency a required matching parameter?
A6: Efficiency should be equal or greater in a substitute part. Both RB-053.3D/H and E0503S-1WR3 meet this guideline.