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KAS2-24 Equivalent & Substitute AC/DC Converter Reference
Part Overview
The TDK-Lambda Americas Inc KAS2-24 is an enclosed, through-hole AC/DC converter providing a single 24V DC output at up to 83mA with a total power rating of 2W. It supports an input voltage range of 90 ~ 305 VAC and is compliant with CE and cURus approvals. The product status is "Obsolete," making the identification of alternative models necessary for continued system design, repair, and maintenance in applications where the KAS2-24 was originally specified.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Input | 90 ~ 305 VAC |
| Voltage - Output 1 | 24V |
| Current - Output (Max) | 83mA |
| Power (Watts) | 2 W |
| Number of Outputs | 1 |
| Mounting Type | Through Hole |
| Package / Case | 5-DIP Module |
| Size / Dimension | 1.12" L x 1.02" W x 0.67" H |
| Approval Agency | CE, cURus |
| RoHS Status | RoHS Compliant |
Substitute Part Grouping Explanation
Substitute AC/DC converters for the KAS2-24 are selected strictly according to the following allowed parameters: input voltage range, output voltage, number of outputs, output power and current ratings, package type, mounting style, and certification status. Only parts meeting these specification boundaries are included as substitutes. Key matching parameters include:
- Through hole mounting and enclosed type
- Single 24V DC output
- Input voltage range covering at least 90 ~ 264 VAC
- Equal or greater maximum output current and power
- Comparable package size and type
- Relevant agency approvals and RoHS compliance
Parameter Comparison
| Parameter | KAS2-24 | KPSB6-24-E | BAC3S24DC | TMPS 03-124 |
|---|---|---|---|---|
| Manufacturer | TDK-Lambda Americas Inc | TDK-Lambda Americas Inc | Murata Power Solutions Inc. | Traco Power |
| Voltage - Input | 90 ~ 305 VAC | 90 ~ 264 VAC | 85 ~ 264 VAC, 120 ~ 370 VDC | 85 ~ 264 VAC, 120 ~ 370 VDC |
| Voltage - Output 1 | 24V | 24V | 24V | 24V |
| Current - Output (Max) | 83mA | 250mA | 125mA | 125mA |
| Power (Watts) | 2 W | 6 W | 3 W | 3 W |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | 5-DIP Module | 4-DIP Module | 5-DIP Module | 5-DIP Module |
| Size / Dimension | 1.12" x 1.02" x 0.67" | 1.62" x 0.83" x 0.79" | 1.00" x 1.00" x 0.64" | 1.00" x 1.00" x 0.64" |
| Approval Agency | CE, cURus | CE, CSA, FCC, UL | CE, cURus | CB, CE, cURus |
| RoHS Status | RoHS Compliant | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
The KAS2-24 AC/DC converter is classified as obsolete. Substitute options KPSB6-24-E, BAC3S24DC, and TMPS 03-124 are in active production and provide the required regulatory compliance (RoHS, CE, and cURus or equivalent certifications). Each substitute is designated with through-hole mounting and an enclosed package. All provide a single 24V DC output with output ratings equal to or exceeding those of the KAS2-24. Package form factors and dimensions are similar, with only minor variations. Selection must be aligned with required international approvals as shown in the parameter comparison table.
Frequently Asked Questions (FAQ)
Q1: What are the essential parameters required for a valid substitute for the KAS2-24?
A1: The substitute must match the output voltage (24V), support at least one output, be suitable for through-hole mounting, offer equal or greater output current and power, fit a comparable or smaller package, and provide similar international approvals and RoHS compliance.
Q2: Are all substitute parts compatible with a standard 5-DIP module PCB footprint?
A2: The BAC3S24DC and TMPS 03-124 use a 5-DIP module package, matching the KAS2-24. The KPSB6-24-E uses a 4-DIP module, which may require PCB layout adjustments. Dimension matching should be verified based on provided specifications.
Q3: Can the substitute models handle the same input voltage range as the original KAS2-24?
A3: All substitutes operate on an input range inclusive of the KAS2-24’s 90 ~ 305 VAC, but KPSB6-24-E is limited to 90 ~ 264 VAC, and BAC3S24DC and TMPS 03-124 support 85 ~ 264 VAC with additional DC input compatibility.
Q4: What are the compliance and certification considerations for these substitute parts?
A4: All listed substitutes are RoHS compliant and have CE and cURus or equivalent certifications, as required for commercial and related applications.
Q5: How does the output rating affect substitution choice?
A5: Substitute parts offer equal or higher maximum output current and power relative to the KAS2-24, ensuring suitability for loads originally powered by the main part without exceeding design limitations.
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