Equivalent & Substitute Parts for RO-0509S DC DC Converter

Part Overview

The Recom Power RO-0509S is an isolated module DC DC converter designed for ITE (Commercial) applications, delivering a single regulated 9V output at up to 111mA from a 4.5V–5.5V input. This model is currently active and available in substantial inventory. Sourcing alternative models may be necessary to address lead times, multi-vendor sourcing, or supply chain flexibility. Substitutions are considered only when all relevant electrical and mechanical parameters align strictly with the original component specification.

Substiute Parts

RO-0509S
Recom PowerIn Stock: 12118RO-0509S Datasheet
RO-0509S
Current Part
B0509S-1WR3
Mornsun America, LLCIn Stock: 1654B0509S-1WR3 Datasheet
B0509S-1WR3
Similar

Key Parameters

ParameterValue
Manufacturer Part NumberRO-0509S
TypeIsolated Module
Number of Outputs1
Voltage - Input (Min)4.5V
Voltage - Input (Max)5.5V
Voltage - Output 19V
Current - Output (Max)111mA
Power (Watts)1 W
Voltage - Isolation1 kV
Operating Temperature-40°C ~ 85°C
Efficiency80%
Mounting TypeThrough Hole
Package / Case4-SIP Module
Size / Dimension0.45" L x 0.24" W x 0.39" H
RoHS StatusROHS3 Compliant
REACH StatusREACH Unaffected
Moisture Sensitivity Level (MSL)1 (Unlimited)
Product StatusActive

Substitute Part Grouping Explanation

Substitution logic is strictly determined by identical or compatible values for the following key parameters: input voltage range, output voltage, maximum output current, power rating, isolation voltage, mounting type, package style, dimensions, and environmental compliance (RoHS/REACH). All substitute components included meet these core criteria within the DC DC converter (isolated module, 1W, 1 output) product category.

Parameter Comparison

Parameter RO-0509S B0509S-1WR3
Manufacturer Recom Power Mornsun America, LLC
Product Status Active Active
Type Isolated Module Isolated Module
Number of Outputs 1 1
Voltage - Input (Min) 4.5V 4.5V
Voltage - Input (Max) 5.5V 5.5V
Voltage - Output 1 9V 9V
Current - Output (Max) 111mA 111mA
Power (Watts) 1 W 1 W
Voltage - Isolation 1 kV 3 kV
Operating Temperature -40°C ~ 85°C -40°C ~ 105°C (With Derating)
Efficiency 80% 83%
Mounting Type Through Hole Through Hole
Package / Case 4-SIP Module 4-SIP Module
Size / Dimension 0.45" L x 0.24" W x 0.39" H 0.46" L x 0.24" W x 0.40" H
RoHS Status ROHS3 Compliant RoHS Compliant
REACH Status REACH Unaffected REACH Unaffected
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)

Engineering Selection Recommendations

Both RO-0509S and B0509S-1WR3 are active products and compliant with RoHS and REACH requirements. Moisture Sensitivity Level for both is 1 (Unlimited), indicating suitability for standard assembly and handling. B0509S-1WR3 includes CE and cURus approvals; this information is explicitly provided and may be relevant for regulated environments. Selection depends exclusively on the matched key parameters and compliance status as outlined.

Frequently Asked Questions (FAQ)

Q1: What are the critical criteria for substituting DC DC converters in this category?
A1: Substitutions require identical input and output voltage ranges, output current, isolation voltage, mounting type, package format, dimensions, and compliance with environmental regulations (RoHS, REACH).

Q2: Are both RO-0509S and B0509S-1WR3 compatible regarding footprint and mounting?
A2: Both devices use the 4-SIP module package with through-hole mounting and closely matching dimensions as stated in the specifications.

Q3: Do product status and inventory affect substitution decisions?
A3: Product status is "Active" for both parts, meaning they are standard, catalogued products with available inventory based on the provided details.

Q4: Is there any difference in compliance or regulatory certifications between the two options?
A4: Both parts are RoHS and REACH compliant. B0509S-1WR3 also includes CE and cURus approvals per the provided information.

Q5: Can the higher isolation voltage and extended operating temperature of B0509S-1WR3 impact compatibility?
A5: Only explicit parameter matches are used for substitution. Variations, such as higher isolation voltage and extended operating temperature, are listed but not used unless required by the substitution logic defined above.

Q6: Are there any mechanical differences affecting interchangeability?
A6: Physical dimensions and mounting style for both components are matched as per the input data for direct substitution consideration.

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