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Equivalent & Substitute Parts for PSK-S3-5
Part Overview
The CUI Inc. PSK-S3-5 is an enclosed AC/DC converter delivering a single 5V output at up to 600mA, designed for ITE (Commercial) applications with universal input voltage acceptability. Now classified as obsolete, identification of equivalent or substitute parts is necessary to facilitate design continuity, maintenance, and inventory management in existing systems that originally specified this part.
Substiute Parts
Key Parameters
| Manufacturer Part Number | Manufacturer | Series | Product Status | Type | Number of Outputs | Voltage - Input | Voltage - Output 1 | Current - Output (Max) | Power (Watts) | Applications | Operating Temperature | Efficiency | Mounting Type | Package / Case | Size / Dimension | Approval Agency | RoHS Status | Line Regulation | Load Regulation |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSK-S3-5 | CUI Inc. | PSK-S3 (3W) | Obsolete | Enclosed | 1 | 85 ~ 264 VAC, 100 ~ 370 VDC | 5V | 600mA | 3 W | ITE (Commercial) | -40°C ~ 70°C (With Derating) | 74% | Through Hole | 26-DIP Module, 5 Leads | 1.46" x 0.96" x 0.71" | CB Scheme, EN, IEC, UL | RoHS Compliant | ±0.5% | ±1% |
Substitute Part Grouping Explanation
Substitute and equivalent AC/DC converters for the PSK-S3-5 are grouped strictly by identical or compatible key parameters, including output voltage (5V), maximum output current (600mA), power rating (3W), number of outputs (1), input voltage range, mounting type, package type, and regulatory compliance. Only parts with matching or broader specifications in these defined parameters are considered suitable substitutes.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Series | Product Status | Type | Number of Outputs | Voltage - Input | Voltage - Output 1 | Current - Output (Max) | Power (Watts) | Applications | Operating Temperature | Efficiency | Mounting Type | Package / Case | Size / Dimension | Approval Agency | Line Regulation | Load Regulation | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSK-S3-5 | CUI Inc. | PSK-S3 (3W) | Obsolete | Enclosed | 1 | 85 ~ 264 VAC, 100 ~ 370 VDC | 5V | 600mA | 3 W | ITE (Commercial) | -40°C ~ 70°C (With Derating) | 74% | Through Hole | 26-DIP Module, 5 Leads | 1.46" x 0.96" x 0.71" | CB Scheme, EN, IEC, UL | ±0.5% | ±1% | RoHS Compliant |
| PSK-3D-5 | CUI Inc. | PSK-3D (3W) | Active | Enclosed | 1 | 85 ~ 305 VAC, 100 ~ 430 VDC | 5V | 600mA | 3 W | Household Appliances, ITE (Commercial) | -40°C ~ 85°C (With Derating) | 76% | Through Hole | 5-DIP Module, 4 Leads | 1.00" x 1.00" x 0.69" | CE, cURus | ±0.5% | ±1% | ROHS3 Compliant |
| RAC03-05SK | Recom Power | POWERLINE RAC03-K (3W) | Active | Enclosed | 1 | 85 ~ 264 VAC, 120 ~ 370 VDC | 5V | 600mA | 3 W | Household Appliances, ITE (Commercial) | -40°C ~ 80°C (With Derating) | 74% | Through Hole | 4-DIP Module | 1.12" x 0.93" x 0.70" | CE, cURus | ±2.5% | ±2.5% | ROHS3 Compliant |
Engineering Selection Recommendations
Selection of a substitute for the CUI Inc. PSK-S3-5 should be based on the following:
- The original part is obsolete, so only active and available parts can ensure continued manufacturability and support.
- Substitute models PSK-3D-5 (CUI Inc.) and RAC03-05SK (Recom Power) have equivalent or broader compliance certifications (including CE, cURus, and RoHS/ROHS3), which is essential for maintaining system-level approvals.
- Substitutes offer matching or improved operating temperature ranges, input voltage ranges, and efficiency, relevant to compatibility within existing design specifications based solely on the provided parameters.
Frequently Asked Questions (FAQ)
Q1: What are the key factors for substituting the PSK-S3-5 AC/DC converter?
A1: Substitution is determined by matching output voltage (5V), output current (600mA), power rating (3W), input voltage range, mounting type, physical dimensions, and regulatory compliance.
Q2: Is there any difference in mounting or pin configuration among the listed substitutes?
A2: The substitutes use through-hole mounting, but package/pin configurations (number of leads, dimensions) differ. Compatibility with the existing PCB layout must be verified against the exact package/case as listed.
Q3: Do the substitute parts meet the same certification and compliance requirements as the PSK-S3-5?
A3: Substitute parts PSK-3D-5 and RAC03-05SK are compliant with major regulatory standards including RoHS/ROHS3 and hold appropriate approval agency certifications as specified in the parameter comparison.
Q4: How does the operating temperature range compare between the main and substitute parts?
A4: Substitute parts offer operating temperature ranges equal to or wider than the PSK-S3-5, according to the provided data.
Q5: Are there differences in line and load regulation?
A5: The PSK-S3-5 and PSK-3D-5 specify ±0.5% line and ±1% load regulation, while RAC03-05SK specifies ±2.5% for both. This is a key parameter for applications sensitive to supply voltage fluctuations.
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