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RAC10-3.3SB Equivalent & Substitute Parts Reference Guide
Part Overview
The Recom Power RAC10-3.3SB is an enclosed AC/DC converter designed to deliver a regulated single 3.3V output at up to 2.5A with a maximum power rating of 10W. It is equipped with short circuit protection and approvals including CE and cULus, making it suitable for ITE (commercial) applications. As the product status is marked "Obsolete," identifying appropriate substitute models from the same or a compatible product series is required for ongoing designs and maintenance.
Substiute Parts
Key Parameters
| Parameter | RAC10-3.3SB |
|---|---|
| Series | POWERLINE RAC10-B (10W) |
| Type | Enclosed |
| Number of Outputs | 1 |
| Voltage - Input | 90 ~ 264 VAC |
| Voltage - Output 1 | 3.3V |
| Current - Output (Max) | 2.5A |
| Power (Watts) | 10 W |
| Applications | ITE (Commercial) |
| Operating Temperature | -25°C ~ 70°C (With Derating) |
| Efficiency | 70% |
| Mounting Type | Through Hole |
| Package / Case | 4-DIP Module |
| Size / Dimension | 2.06" L x 1.07" W x 0.94" H (52.3mm x 27.2mm x 23.8mm) |
| Approval Agency | CE, cULus |
| RoHS Status | ROHS3 Compliant |
| MSL | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitute components are determined based on critical mechanical and electrical compatibility. Key parameters for substitution in this AC/DC converter category are: voltage input range, voltage output, maximum output current, output power, package type, mounting configuration, and regulatory compliance. Only parts that strictly match these parameters—without extrapolation—can be considered substitutes.
Parameter Comparison
| Parameter | RAC10-3.3SB | RAC10-3.3SK/277 |
|---|---|---|
| Series | POWERLINE RAC10-B (10W) | POWERLINE RAC10-K/277 (10W) |
| Type | Enclosed | Enclosed |
| Number of Outputs | 1 | 1 |
| Voltage - Input | 90 ~ 264 VAC | 80 ~ 305 VAC |
| Voltage - Output 1 | 3.3V | 3.3V |
| Current - Output (Max) | 2.5A | 2.5A |
| Power (Watts) | 10 W | 8 W |
| Applications | ITE (Commercial) | Household Appliances, ITE (Commercial) |
| Operating Temperature | -25°C ~ 70°C (With Derating) | -40°C ~ 80°C (With Derating) |
| Efficiency | 70% | 79% |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 4-DIP Module | 4-DIP Module |
| Size / Dimension | 2.06" L x 1.07" W x 0.94" H (52.3mm x 27.2mm x 23.8mm) | 2.07" L x 1.08" W x 0.93" H (52.5mm x 27.4mm x 23.5mm) |
| Approval Agency | CE, cULus | CE, cURus |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
RAC10-3.3SB is obsolete, and RAC10-3.3SK/277 is in active production. Both models are RoHS3 compliant and REACH unaffected, with MSL 1 status indicating unlimited shelf life. Certifications differ slightly (cULus vs cURus); both possess CE certification, supporting use in ITE (commercial) environments within applicable regulatory frameworks. Substitute selection can be made strictly on these documented product statuses and certifications.
Frequently Asked Questions (FAQ)
Q1: What are the essential criteria for substituting RAC10-3.3SB in my design?
- Substitution is determined strictly by input voltage range, output voltage, maximum output current, package type, mounting method, and compliance certifications provided in the datasheets.
Q2: Are there significant size or mounting differences between RAC10-3.3SB and RAC10-3.3SK/277?
- Both parts use a 4-DIP Module package and Through Hole mounting. Dimensional differences, based solely on provided data, are minimal.
Q3: Does the change in approval agency certification impact substitution?
- Both parts hold CE certification. RAC10-3.3SB carries cULus, while RAC10-3.3SK/277 carries cURus. Selection can be based on required compliance for the targeted application jurisdiction.
Q4: How does RoHS or REACH status affect the choice of a substitute?
- Both RAC10-3.3SB and RAC10-3.3SK/277 are ROHS3 compliant and REACH unaffected; therefore, compliance-based substitution is supported with either part.
Q5: Is the substitute part suitable for the same application environments as RAC10-3.3SB?
- The substitute part specifies ITE (Commercial) and Household Appliances in the application field, matching or exceeding the original application scope based on the input parameters.
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