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RSS-3.305/H Equivalent & Substitute Parts Reference
Part Overview
The RSS-3.305/H, manufactured by Recom Power, is an obsolete isolated DC-DC converter module designed for ITE (Commercial) and Medical applications. It provides a single 5V output at up to 200mA from a 3V–3.6V input, with 1W output power and 3kV isolation. As this part is listed as obsolete, it is necessary to identify suitable alternative models to maintain system continuity and ensure long-term serviceability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Recom Power |
| Type | Isolated Module |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 3V |
| Voltage - Input (Max) | 3.6V |
| Voltage - Output 1 | 5V |
| Current - Output (Max) | 200mA |
| Power (Watts) | 1 W |
| Voltage - Isolation | 3 kV |
| Applications | ITE (Commercial), Medical |
| Features | SCP |
| Operating Temperature | -40°C ~ 85°C |
| Efficiency | 78% |
| Mounting Type | Surface Mount |
| Package / Case | 8-SMD Module, 5 Leads |
| Size / Dimension | 0.50" L x 0.32" W x 0.29" H (12.8mm x 8.2mm x 7.3mm) |
| RoHS Status | ROHS3 Compliant |
| MSL | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution is determined by a strict match of key parameters, including electrical ratings (input/output voltage and current, power, isolation voltage), application suitability, package and mounting type, compliance, and environmental ratings. All listed substitutes must match or exceed the specifications for:
- Input voltage range: 3V–3.6V
- Output voltage: 5V
- Output current: 200mA
- Power: 1W
- Isolation voltage: 3kV
- Application: ITE (Commercial), Medical
- Surface mount package compatibility
- Regulatory and compliance status (RoHS, REACH)
Parameter Comparison
| Parameter | RSS-3.305/H | R1S-3.305/H |
|---|---|---|
| Manufacturer | Recom Power | Recom Power |
| Description | DC DC CONVERTER 5V 1W | DC DC CONVERTER 5V 1W |
| Type | Isolated Module | Isolated Module |
| Number of Outputs | 1 | 1 |
| Voltage - Input (Min) | 3V | 3V |
| Voltage - Input (Max) | 3.6V | 3.6V |
| Voltage - Output 1 | 5V | 5V |
| Current - Output (Max) | 200mA | 200mA |
| Power (Watts) | 1 W | 1 W |
| Voltage - Isolation | 3 kV | 3 kV |
| Applications | ITE (Commercial), Medical | ITE (Commercial), Medical |
| Features | SCP | SCP |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 100°C |
| Efficiency | 78% | 78% |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-SMD Module, 5 Leads | 8-SMD Module, 5 Leads |
| Size / Dimension | 0.50" L x 0.32" W x 0.29" H (12.8mm x 8.2mm x 7.3mm) | 0.50" L x 0.42" W x 0.28" H (12.8mm x 10.7mm x 7.0mm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The RSS-3.305/H is obsolete, while the R1S-3.305/H is active, providing continued availability. Both parts have equivalent ratings for all key electrical, mechanical, and compliance parameters relevant to substitution. Both parts are ROHS3 compliant and REACH unaffected, with identical moisture sensitivity levels, ensuring compatibility in regulated and controlled manufacturing environments.
Frequently Asked Questions (FAQ)
Q1: What criteria are used to select a substitute for the RSS-3.305/H?
A1: Substitution is based strictly on input and output voltages, output current, power, isolation voltage, application suitability, packaging, surface mount compatibility, and product compliance.
Q2: Are there differences in mechanical size or pinout between RSS-3.305/H and R1S-3.305/H?
A2: Both use the 8-SMD Module, 5 Leads package. Dimensionally, R1S-3.305/H has a wider package (10.7mm vs. 8.2mm) and slightly lower height (7.0mm vs. 7.3mm). Mechanical fit should be verified based on the available board space.
Q3: Is there any change in compliance or regulatory certifications?
A3: Both parts maintain identical RoHS3 compliance, REACH unaffected status, and moisture sensitivity level.
Q4: Does the substitute support the same features as the original?
A4: Both RSS-3.305/H and R1S-3.305/H support short circuit protection (SCP) and are suitable for ITE (Commercial) and Medical applications.
Q5: Is the substitute part available for mass production?
A5: The R1S-3.305/H is active and available in inventory, whereas RSS-3.305/H is obsolete.
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