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RAC04-3.3SA Equivalent & Substitute Parts Reference
Part Overview
The RAC04-3.3SA from Recom Power is an enclosed AC/DC converter delivering 3.3V at up to 1.2A with a power rating of 4 W, suitable for use in ITE (commercial) applications. This product is classified as obsolete, leading to the necessity of finding alternative models with directly compatible electrical, mechanical, and compliance characteristics to ensure system continuity and design support.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | RAC04-3.3SA |
| Manufacturer | Recom Power |
| Description | AC/DC CONVERTER 3.3V 4W |
| Type | Enclosed |
| Number of Outputs | 1 |
| Voltage - Input | 90 ~ 264 VAC |
| Voltage - Output 1 | 3.3V |
| Current - Output (Max) | 1.2A |
| Power (Watts) | 4 W |
| Applications | ITE (Commercial) |
| Operating Temperature | -40°C ~ 70°C (With Derating) |
| Efficiency | 68% |
| Mounting Type | Through Hole |
| Package / Case | 7-DIP Module |
| Size / Dimension | 1.44" L x 1.07" W x 0.69" H (36.7mm x 27.0mm x 17.6mm) |
| Approval Agency | CE, cULus, EN |
| Line Regulation | ±0.2% |
| Load Regulation | ±1% |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitute parts for the RAC04-3.3SA are selected solely on the following key parameters: output voltage (3.3 V), output current (1.2 A), power rating (4 W), single output channel, mounting style (through hole), input voltage range, package size, approval agency compliance, and RoHS/REACH status. Substitution is appropriate where these parameters align between models, ensuring direct compatibility in form, fit, and function as defined by the supplied electrical and regulatory specifications.
Parameter Comparison
| Parameter | RAC04-3.3SA | RAC04-3.3SK/277 | RAC04-3.3SC/277 |
|---|---|---|---|
| Manufacturer | Recom Power | Recom Power | Recom Power |
| Description | AC/DC CONVERTER 3.3V 4W | AC/DC CONVERTER 3.3V 4W | AC/DC CONVERTER 3.3V 4W |
| Type | Enclosed | Enclosed | Enclosed |
| Number of Outputs | 1 | 1 | 1 |
| Voltage - Input | 90 ~ 264 VAC | 80 ~ 305 VAC, 110 ~ 390 VDC | 80 ~ 305 VAC |
| Voltage - Output 1 | 3.3V | 3.3V | 3.3V |
| Current - Output (Max) | 1.2A | 1.2A | 1.2A |
| Power (Watts) | 4 W | 4 W | 4 W |
| Applications | ITE (Commercial) | Household Appliances, ITE (Commercial), Medical | ITE (Commercial) |
| Operating Temperature | -40°C ~ 70°C (With Derating) | -40°C ~ 90°C (With Derating) | -25°C ~ 80°C (With Derating) |
| Efficiency | 68% | 73% | 72% |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Package / Case | 7-DIP Module | 6-DIP Module | 7-DIP Module, 6 Leads |
| Size / Dimension | 1.44" L x 1.07" W x 0.69" H | 1.44" L x 1.07" W x 0.69" H | 1.44" L x 1.07" W x 0.67" H |
| Approval Agency | CE, cULus, EN | CB, CE, cURus, FCC | CE, EN, UL |
| Line Regulation | ±0.2% | ±0.5% | ±0.2% |
| Load Regulation | ±1% | 1% | ±1% |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The main part RAC04-3.3SA is obsolete; substitute selection should be limited to models with current production status, verified RoHS compliance, and matching approval agency certifications for the intended application. RAC04-3.3SK/277 is active and maintains required safety and environmental compliance. RAC04-3.3SC/277 is not for new designs and should be selected only when continued availability aligns with project requirements.
Frequently Asked Questions (FAQ)
Q1: What parameters are critical when selecting a substitute for RAC04-3.3SA?
A1: Output voltage, output current, power rating, mounting type, package size/dimensions, input voltage range, approval agency, and compliance status are critical.
Q2: Are package and mounting style considered in substitution?
A2: Yes, both package/case type and mounting style must match or be compatible for direct replacement, ensuring mechanical and assembly alignment.
Q3: Does the approval agency affect substitution suitability?
A3: Yes, substitute models must have equivalent or higher certification according to application safety and regulatory requirements.
Q4: What if a substitute part is marked "Not For New Designs"?
A4: "Not For New Designs" status means the part should only be selected if aligned with existing design continuity or inventory strategy, not for new or future products.
Q5: Are all substitutes RoHS and REACH compliant?
A5: Yes, all listed substitutes carry ROHS3 compliance and REACH unaffected status as specified.
Q6: Are dimensional differences relevant for the substitute parts listed?
A6: Small dimensional variations exist; check mechanical fit within system tolerances as specified in each part’s package and size information.
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