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Equivalent & Substitute Parts for PBO-3-S12
Part Overview
PBO-3-S12 by CUI Inc. is an open frame AC/DC converter providing a single 12V output at up to 250mA (3W) from wide input ranges (85 ~ 305 VAC, 70 ~ 430 VDC). The product is classified as obsolete. For engineering projects or maintenance, it is essential to identify alternative models that match the electrical, mechanical, and compliance parameters of the original device to ensure uninterrupted functionality in both new and servicing applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Input | 85 ~ 305 VAC, 70 ~ 430 VDC |
| Voltage - Output 1 | 12V |
| Current - Output (Max) | 250mA |
| Power (Watts) | 3 W |
| Type | Open Frame |
| Number of Outputs | 1 |
| Mounting Type | Through Hole |
| Operating Temperature | -40°C ~ 85°C (With Derating) |
| Efficiency | 77% |
| Approval Agency | CB Scheme, EN, IEC, UL |
| Regulation (Line/Load) | ±1.5% / ±2.5% |
| Package / Case | 12-SIP Module, 6 Leads |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitutes for PBO-3-S12 are grouped based on direct parameter equivalence. Key parameters used for substitution decisions are: voltage input range, voltage output, maximum output current, power rating, mounting type, operating temperature range, efficiency, the number of outputs, compliance with RoHS, and relevant approval agency certifications. Only parts strictly matching these characteristics are included as direct substitutes.
Parameter Comparison
| Parameter | PBO-3-S12 CUI Inc. |
PBO-3C-12 CUI Inc. |
PSK-3D-12 CUI Inc. |
|---|---|---|---|
| Voltage - Input | 85 ~ 305 VAC, 70 ~ 430 VDC | 85 ~ 305 VAC, 70 ~ 430 VDC | 85 ~ 305 VAC, 100 ~ 430 VDC |
| Voltage - Output 1 | 12V | 12V | 12V |
| Current - Output (Max) | 250mA | 250mA | 250mA |
| Power (Watts) | 3 W | 3 W | 3 W |
| Type | Open Frame | Open Frame | Enclosed |
| Number of Outputs | 1 | 1 | 1 |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Operating Temperature | -40°C ~ 85°C (With Derating) | -40°C ~ 85°C (With Derating) | -40°C ~ 85°C (With Derating) |
| Efficiency | 77% | 77% | 78% |
| Approval Agency | CB Scheme, EN, IEC, UL | CE, cURus | CE, cURus |
| Regulation (Line/Load) | ±1.5% / ±2.5% | ±1.5% / ±3% | ±0.5% / ±1% |
| Package / Case | 12-SIP Module, 6 Leads | 6-SIP Module | 5-DIP Module, 4 Leads |
| RoHS Status | RoHS Compliant | RoHS Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | Not Applicable | 1 (Unlimited) |
Engineering Selection Recommendations
The PBO-3-S12 is designated as obsolete. The substitute models PBO-3C-12 and PSK-3D-12 are both active and RoHS or ROHS3 compliant. Both substitutes provide equivalent electrical performance and certification status, though approval agencies and package/case details vary. Selection among these models should be based on required product lifecycle status, regulatory compliance, and form factor compatibility with the target design.
Frequently Asked Questions (FAQ)
Q: What criteria determine whether PSK-3D-12 or PBO-3C-12 can substitute PBO-3-S12?
A: Substitute selection is based on identical voltage input and output, output current, power rating, number of outputs, mounting type, operating temperature, and RoHS compliance.
Q: Are the package/case dimensions between PBO-3-S12 and its substitutes interchangeable?
A: Package/case specifications differ: PBO-3-S12 uses a 12-SIP Module (6 Leads), PBO-3C-12 uses a 6-SIP Module, and PSK-3D-12 uses a 5-DIP Module (4 Leads). Mechanical compatibility should be confirmed solely based on explicit provided dimensions.
Q: Do substitute parts hold the same regulatory and environmental certifications?
A: All parts provided are RoHS compliant. Certifications and approval agencies differ and should be checked for system compliance based on the supplied certifications.
Q: Is there a difference in electrical regulation performance among the listed substitutes?
A: Substitute parts exhibit variation in regulation characteristics as outlined in the parameter comparison table. Select the part with the required regulation specification for the application.
Q: Do the alternative parts support the same mounting method?
A: All listed parts use Through Hole mounting as per the provided specifications.
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