RSS-1205/P DC DC Converter 5V 1W Equivalent & Substitute Parts

Part Overview

The RSS-1205/P is an isolated module DC DC converter manufactured by Recom Power, designed to convert input voltages between 10.8V and 13.2V to a regulated 5V output at 200mA maximum current. This component belongs to the ECONOLINE RSS series and delivers 1W of power with 1 kV isolation suitable for commercial ITE applications.

The RSS-1205/P carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

RSS-1205/P

Recom PowerIn Stock: 1174RSS-1205/P Datasheet

Current PartRFQ

R1S-1205/P

Recom PowerIn Stock: 885R1S-1205/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RSS-1205/P is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Input voltage range: 10.8V to 13.2V minimum
• Output voltage: 5V nominal
• Output current capacity: 200mA minimum
• Power rating: 1W minimum
• Isolation voltage: 1 kV minimum
• Single isolated output configuration

Mechanical Compatibility Requirements:

• Surface mount mounting type
• 8-SMD Module package with 5 leads
• Physical dimensions compatible with PCB layout constraints

Functional Requirements:

• Isolated DC DC converter topology
• Short circuit protection feature
• Commercial ITE application suitability

The R1S-1205/P meets all electrical and mechanical compatibility criteria for direct substitution with the RSS-1205/P. Both components share identical input/output voltage specifications, current ratings, power delivery, isolation characteristics, and package configuration. The primary distinction is product status and operating temperature range extension.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement Applications:

The R1S-1205/P is the appropriate substitute for the obsolete RSS-1205/P. Both components deliver identical electrical performance across all specified parameters including input voltage range, output voltage and current, power delivery, isolation characteristics, and protection features. The mechanical package configuration is equivalent, supporting direct PCB layout compatibility.

Product Status Consideration:

The RSS-1205/P is classified as obsolete, indicating discontinued manufacturing and limited long-term availability. The R1S-1205/P maintains active product status with current manufacturing support, ensuring supply chain continuity and technical support availability.

Compliance and Certification:

Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for commercial ITE applications. Moisture sensitivity level 1 (unlimited) indicates no special handling requirements during storage or assembly.

Operating Temperature Advantage:

The R1S-1205/P extends the maximum operating temperature to 100°C compared to the RSS-1205/P at 85°C. This provides enhanced thermal margin for applications operating in elevated ambient conditions or with higher component density on the PCB.

Frequently Asked Questions (FAQ)

Q: Can the R1S-1205/P directly replace the RSS-1205/P in existing designs?

A: Yes. The R1S-1205/P provides direct electrical and mechanical compatibility. Input voltage range, output voltage, current capacity, power rating, isolation voltage, package type, and lead configuration are identical. No circuit modifications or PCB layout changes are required.

Q: What is the primary reason to transition from RSS-1205/P to R1S-1205/P?

A: The RSS-1205/P is obsolete with limited inventory availability. The R1S-1205/P is an active product with current manufacturing support, ensuring reliable long-term supply and technical support for new designs and production continuity.

Q: Are there any differences in the physical dimensions between these parts?

A: Minor dimensional variations exist. The RSS-1205/P measures 0.50" L x 0.32" W x 0.29" H (12.8mm x 8.2mm x 7.3mm). The R1S-1205/P measures 0.50" L x 0.42" W x 0.28" H (12.8mm x 10.7mm x 7.0mm). The length remains identical; width increases by 0.1" and height decreases by 0.01". Verify PCB layout clearances for the width dimension in space-constrained applications.

Q: Do both parts support the same operating temperature range?

A: The operating temperature ranges differ at the upper limit. The RSS-1205/P operates from -40°C to 85°C. The R1S-1205/P operates from -40°C to 100°C. The R1S-1205/P provides 15°C additional thermal margin at maximum operating temperature.

Q: What packaging options are available for the R1S-1205/P?

A: The R1S-1205/P is supplied in tube packaging. The RSS-1205/P packaging format is not specified in the available data. Confirm packaging requirements for your procurement and assembly processes.

Q: Are the electrical performance characteristics identical?

A: Yes. Both components deliver 1W power with 78% efficiency, 1 kV isolation, 200mA maximum output current at 5V, and short circuit protection. Input voltage range of 10.8V to 13.2V is identical for both parts.

Q: What is the lead configuration for the 8-SMD Module package?

A: Both components use an 8-SMD Module with 5 leads. Consult the manufacturer datasheet for specific lead assignments and PCB footprint requirements to ensure correct placement and soldering.

Q: Are regulatory certifications maintained with the R1S-1205/P?

A: Yes. The R1S-1205/P maintains ROHS3 compliance and REACH unaffected status, identical to the RSS-1205/P. Both components satisfy commercial ITE application regulatory requirements.