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Equivalent & Substitute Parts for FSK-S15-3R3U
Part Overview
The FSK-S15-3R3U by CUI Inc. is an AC/DC converter designed for ITE (Commercial) applications. It is an enclosed, single-output power supply with universal input (85 ~ 264 VAC) and a fixed 3.3V, 3A output, rated at 15W. The product is no longer in production and is marked as obsolete. Identifying equivalent and substitute models is necessary to address sourcing requirements, ensure system continuity, and maintain compliance with operational or safety certifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | FSK-S15-3R3U |
| Manufacturer | CUI Inc. |
| Description | AC/DC CONVERTER 3.3V 15W |
| Series | FSK-S15 (15W) |
| Product Status | Obsolete |
| Type | Enclosed |
| Number of Outputs | 1 |
| Voltage - Input | 85 ~ 264 VAC |
| Voltage - Output 1 | 3.3V |
| Current - Output (Max) | 3A |
| Power (Watts) | 15 W |
| Applications | ITE (Commercial) |
| Features | Universal Input |
| Operating Temperature | -10°C ~ 60°C (With Derating) |
| Efficiency | 75% |
| Mounting Type | Through Hole |
| Package / Case | 7-DIP Module, 5 Leads |
| Size / Dimension | 2.76" L x 1.77" W x 0.89" H (70.0mm x 45.0mm x 22.5mm) |
| Approval Agency | CB, CE, cUL, UL |
| Standard Number | 60950-1 |
| Line Regulation | ±1% |
| Load Regulation | ±1% |
| Weight | 0.22 lb (99.79 g) |
| RoHS Status | Not applicable |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Equivalent and substitute part selection for the FSK-S15-3R3U is determined strictly by matching the following key parameters: manufacturer part number, electrical characteristics (input voltage range, output voltage, output current, power rating), output type and number, mounting type, package/case, physical dimensions, regulatory approvals, and application category. Only parts meeting these criteria are considered interchangeable for direct replacement.
Parameter Comparison
| Parameter | Main Part: FSK-S15-3R3U | Substitute: FSK-S15-3R3U |
|---|---|---|
| Manufacturer | CUI Inc. | CUI Inc. |
| Description | AC/DC CONVERTER 3.3V 15W | AC/DC CONVERTER 3.3V 15W |
| Series | FSK-S15 (15W) | FSK-S15 (15W) |
| Product Status | Obsolete | Obsolete |
| Type | Enclosed | Enclosed |
| Number of Outputs | 1 | 1 |
| Voltage - Input | 85 ~ 264 VAC | 85 ~ 264 VAC |
| Voltage - Output 1 | 3.3V | 3.3V |
| Current - Output (Max) | 3A | 3A |
| Power (Watts) | 15 W | 15 W |
| Applications | ITE (Commercial) | ITE (Commercial) |
| Features | Universal Input | Universal Input |
| Operating Temperature | -10°C ~ 60°C (With Derating) | -10°C ~ 60°C (With Derating) |
| Efficiency | 75% | 75% |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 7-DIP Module, 5 Leads | 7-DIP Module, 5 Leads |
| Size / Dimension | 2.76" L x 1.77" W x 0.89" H (70.0mm x 45.0mm x 22.5mm) | 2.76" L x 1.77" W x 0.89" H (70.0mm x 45.0mm x 22.5mm) |
| Approval Agency | CB, CE, cUL, UL | CB, CE, cUL, UL |
| Standard Number | 60950-1 | 60950-1 |
| Line Regulation | ±1% | ±1% |
| Load Regulation | ±1% | ±1% |
| Weight | 0.22 lb (99.79 g) | 0.22 lb (99.79 g) |
| RoHS Status | Not applicable | Not applicable |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
Selection of the FSK-S15-3R3U or its parametric equivalent is governed by identical product status (obsolete), matching electrical parameters, mechanical footprint, and compliance with the same safety and regulatory certifications including CB, CE, cUL, and UL. The exact alignment in RoHS and REACH status must be retained for regulatory and inventory management.
Frequently Asked Questions (FAQ)
Q1: What are the essential criteria for substituting the FSK-S15-3R3U in a power supply design?
A1: Substitution requires matching the input voltage range, output voltage and current, power rating, number of outputs, package type, mounting method, safety certifications, and physical dimensions.
Q2: Are there any form factor or mounting restrictions when using substitute parts?
A2: Substitute units must conform to the same 7-DIP Module, 5 Leads through-hole package and identical dimensions to ensure mechanical and PCB compatibility.
Q3: Does regulatory approval affect substitutability of the FSK-S15-3R3U?
A3: Substitute parts must carry the same regulatory certifications (CB, CE, cUL, UL) and adhere to the same compliance standards to maintain certified product safety and approval status.
Q4: Is the parametric equivalent part number FSK-S15-3R3U an identical substitute?
A4: All key parameters and certifications are equivalent; selection can be based on matching part numbers and provided specifications.
Q5: What is the impact of the obsolete status on replacement strategy?
A5: The obsolete status necessitates immediate identification and adoption of fully matching substitutes for continued system support and technical compliance.
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