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Equivalent & Substitute Parts Reference: PSK-S20C-9
Part Overview
The PSK-S20C-9 from CUI Inc. is an enclosed AC/DC converter delivering 9V at up to 2.2A (20W output power) for ITE (Commercial) applications. The unit accepts a wide input voltage range of 85 ~ 264 VAC or 100 ~ 370 VDC, features through hole mounting, and complies with multiple global approval standards. The PSK-S20C-9 is classified as obsolete, necessitating selection of alternative or substitute parts with matching electrical, mechanical, and regulatory characteristics for ongoing design, maintenance, or replacement requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | PSK-S20C-9 |
| Output Voltage | 9V |
| Output Current (Max) | 2.2A |
| Power Output (Watts) | 20W |
| Number of Outputs | 1 |
| Input Voltage Range (AC) | 85 ~ 264 VAC |
| Input Voltage Range (DC) | 100 ~ 370 VDC |
| Mounting Type | Through Hole |
| Package / Case | 4-DIP Module |
| Size / Dimension | 2.12" L x 1.13" W x 0.93" H |
| Operating Temperature | -40°C ~ 70°C (With Derating) |
| Efficiency | 79% |
| RoHS Status | RoHS Compliant |
| Product Status | Obsolete |
| Approval Agency / Standards | CB Scheme, EN, IEC, UL; 55024; 55032 Class A; 60950-1; 61000-3-2; 62368-1 |
| Line Regulation | ±0.5% |
| Load Regulation | ±1% |
Substitute Part Grouping Explanation
Suitable substitute parts are selected strictly based on the following key parameters: output voltage (9V), output current (2.2A maximum), output power (20W), number of outputs (1), input voltage ranges (AC and DC), mounting method (through hole), package dimensions, operating temperature range, efficiency, RoHS compliance, and relevant standard approvals. Substitute parts must provide identical or superior specifications in these fields to ensure electrical and mechanical compatibility.
Parameter Comparison
| Parameter | PSK-S20C-9 | PSK-20D-9 |
|---|---|---|
| Manufacturer Part Number | PSK-S20C-9 | PSK-20D-9 |
| Manufacturer | CUI Inc. | CUI Inc. |
| Description | AC/DC CONVERTER 9V 20W | AC/DC CONVERTER 9V 20W |
| Output Voltage | 9V | 9V |
| Output Current (Max) | 2.2A | 2.2A |
| Power Output (Watts) | 20W | 20W |
| Number of Outputs | 1 | 1 |
| Input Voltage Range (AC) | 85 ~ 264 VAC | 85 ~ 305 VAC |
| Input Voltage Range (DC) | 100 ~ 370 VDC | 100 ~ 430 VDC |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 4-DIP Module | 6-DIP Module, 4 Leads |
| Size / Dimension | 2.12" L x 1.13" W x 0.93" H | 2.06" L x 1.07" W x 0.94" H |
| Operating Temperature | -40°C ~ 70°C (With Derating) | -40°C ~ 85°C (With Derating) |
| Efficiency | 79% | 85% |
| RoHS Status | RoHS Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
| Approval Agency / Standards | CB Scheme, EN, IEC, UL; 55024; 55032 Class A; 60950-1; 61000-3-2; 62368-1 | CE, cURus; 60335-1; 60601-1; 62368-1 |
| Line Regulation | ±0.5% | ±0.5% |
| Load Regulation | ±1% | ±1% |
Engineering Selection Recommendations
Select substitute AC/DC converter models that meet or exceed the RoHS compliance and provide active product status for assured ongoing availability. Certification standards and approval agency listings must be matched to the target application requirements as specified in the comparison table.
Frequently Asked Questions (FAQ)
Q1: What are the critical criteria for substituting PSK-S20C-9?
Substitute parts must match output voltage (9V), maximum output current (2.2A), output power (20W), input voltage ranges, number of outputs, mounting type, package dimensions, regulation specifications, compliance status, and applicable approvals.
Q2: Does package or mounting change affect substitute selection?
Substitute units must use the same through hole mounting style. Differences in package/case dimensions and lead configurations require mechanical compatibility checks within the system enclosure or PCB footprint.
Q3: How do certification approvals impact substitution?
Substitute models must carry certifications matching the end-use requirements, such as CE, UL, IEC, or other applicable standards as listed in the part comparison table.
Q4: Is RoHS compliance mandatory for substitutes?
All listed substitute parts conform to the supplied RoHS compliance requirements as stated in product data.
Q5: Can substitute parts operate under the same environmental conditions?
Operating temperature ranges, efficiency, and derating characteristics are detailed in the comparison table; select substitutes that align with specific use-case conditions.
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