| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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19 pcs
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19 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The TDK-Lambda KMS40-12 is a 40W AC/DC power supply designed for board mounting. It operates with a wide input voltage range of 90-264 VAC, making it suitable for global applications without manual intervention. The converter provides a stable 12V output voltage and delivers up to 3.33A of current, for a total output power of 40W.
This model features high efficiency, minimizing heat dissipation within the system. It is built with medical safety certifications, including 4kVAC input-output withstand voltage, and adheres to standards like UL60601-1 and IEC60601-1. The unit is convection cooled and protected against over-temperature conditions.
Designed for PCB board mountability, the KMS40-12 has a compact and lightweight plastic resin fibreglass case (UL 94V-0). Its dimensions are 89mm x 64mm x 27mm. The power supply also includes overcurrent and overvoltage protection, with a hiccup mode for recovery.
Key electrical specifications include a switching frequency of 132kHz, a hold-up time of 18ms, and low leakage current. The MTBF is rated between 200,000 and 400,000 hours, and it comes with a 2-year warranty.
The input voltage range is 90-264 VAC at 47-440Hz, or 100-375 VDC.
The output voltage is 12V and the output current is 3.33A.
The operating temperature range is -25°C to 70°C, with derating required from 50°C to 70°C.
Yes, it features overcurrent protection greater than 105% in hiccup mode with automatic recovery.
It is certified to UL60601-1, IEC60601-1, and carries a CE Mark.
The typical hold-up time is 18ms.
The Mean Time Between Failures (MTBF) is between 200,000 and 400,000 hours, depending on the specific model configuration.