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Equivalent & Substitute Parts for PSK-S2C-9
Part Overview
The PSK-S2C-9 from CUI Inc. is an enclosed AC/DC converter with a single 9V output at 222mA and 2W maximum power, designed for ITE (Commercial) applications. The product is now listed as obsolete, making it necessary to identify substitute models for ongoing designs and maintenance. Alternatives must match or exceed the critical electrical, mechanical, and compliance parameters as specified.
Substiute Parts
Key Parameters
| Manufacturer Part Number | Manufacturer | Description | 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 | Standard Number | Line Regulation | Load Regulation | RoHS Status | ECCN | HTSUS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSK-S2C-9 | CUI Inc. | AC/DC CONVERTER 9V 2W | PSK-S2C (2W) | Obsolete | Enclosed | 1 | 85 ~ 305 VAC, 120 ~ 430 VDC | 9V | 222mA | 2 W | ITE (Commercial) | -40°C ~ 70°C (With Derating) | 72% | Through Hole | 4-DIP Module | 1.33" L x 0.87" W x 0.71" H | CB Scheme, EN, IEC, UL | 55024; 55032 Class A; 62368-1 | ±2% | ±5% | RoHS Compliant | EAR99 | 8504.40.9510 |
Substitute Part Grouping Explanation
The substitutes for PSK-S2C-9 are selected strictly according to the following parameters: output voltage, maximum output current, power rating, input voltage range, type, number of outputs, mounting method, package, major dimensions, compliance certifications, and regulatory status. Substitution is only valid where these parameters align with or improve upon the original part for its intended function.
Key substitution criteria:
- Output Voltage: 9V
- Output Current: ≥222mA
- Power: ≥2W
- Input Voltage Range: must encompass 85 ~ 305 VAC and 120 ~ 430 VDC minimum
- Number of Outputs: 1
- Mounting: Through Hole
- Compliance: RoHS, relevant safety standards, approval agency listing
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Description | 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 | Standard Number | Line Regulation | Load Regulation | RoHS Status | ECCN | HTSUS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSK-S2C-9 | CUI Inc. | AC/DC CONVERTER 9V 2W | Obsolete | Enclosed | 1 | 85 ~ 305 VAC, 120 ~ 430 VDC | 9V | 222mA | 2 W | ITE (Commercial) | -40°C ~ 70°C (With Derating) | 72% | Through Hole | 4-DIP Module | 1.33" L x 0.87" W x 0.71" H | CB Scheme, EN, IEC, UL | 55024; 55032 Class A; 62368-1 | ±2% | ±5% | RoHS Compliant | EAR99 | 8504.40.9510 |
| PSK-3D-9 | CUI Inc. | AC/DC CONVERTER 9V 3W | Active | Enclosed | 1 | 85 ~ 305 VAC, 100 ~ 430 VDC | 9V | 333mA | 3 W | Household Appliances, ITE (Commercial) | -40°C ~ 85°C (With Derating) | 78% | Through Hole | 5-DIP Module, 4 Leads | 1.00" L x 1.00" W x 0.69" H | CE, cURus | 60335-1; 62368-1 | ±0.5% | ±1% | ROHS3 Compliant | EAR99 | 8504.40.9510 |
Engineering Selection Recommendations
The primary selection requirement is the obsolete status of PSK-S2C-9 and the necessity to use an active replacement. PSK-3D-9 fulfills the electrical and mechanical criteria, featuring a compatible 9V output, higher output current, and power. The substitute maintains through-hole mounting and enclosed construction. Compliance with RoHS standards and international certifications ensures regulatory integrity.
Frequently Asked Questions (FAQ)
Q: What are the critical substitution criteria for AC/DC converters in this category?
A: Substitution requires that the output voltage, output current, power rating, input voltage range, mounting type, number of outputs, package, and compliance certifications match or exceed the original part’s specifications.
Q: Is the PSK-3D-9 package interchangeable with PSK-S2C-9?
A: Both parts use enclosed packages and through-hole mounting, but dimensions and pin count differ. Mechanical compatibility must be checked relative to actual board layout.
Q: Does PSK-3D-9 satisfy certification requirements for the same end applications?
A: PSK-3D-9 features safety certifications (60335-1; 62368-1), approval agencies (CE, cURus), and RoHS compliance, supporting suitability for ITE (Commercial) and household appliance applications as indicated in the specifications.
Q: Are there differences in operating temperature range and efficiency?
A: PSK-3D-9 offers a broader operating temperature range and higher efficiency, which is explicitly listed.
Q: How does the input voltage range compare between the two?
A: Both support an input of 85 ~ 305 VAC, and VDC input ranges of 120 ~ 430 VDC (PSK-S2C-9) and 100 ~ 430 VDC (PSK-3D-9). The ranges overlap.
Q: Are regulatory and supply chain statuses equivalent?
A: Both are classified under ECCN EAR99 and HTSUS 8504.40.9510 for customs and export handling. RoHS compliance is specified for each part.
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