KMS15A-9

AC/DC PCB Mount Power Supply (PSU), Medical, 1 Output, 15 W, 9 VDC, 1.666 A

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: TDK-LAMBDA
Product type: AC / DC PCB Mount Power Supplies
No. of Outputs:1 Output; Output Power Max:15W; Output Voltage - Output 1:9V; Output Current - Output 1:1.666A; Output Voltage - Output 2:-; Output Current - Output 2:-; Output Voltage - O
SVHC: No SVHC (15-Jan-2018)
Depth: 52.5mm
Width: 27.5mm
Height: 23.5mm
Product Range: KMS-A Series
No. of Outputs: 1 Output
Output Power Max: 15W
Input Voltage VAC: 90V AC to 264V AC
Input Voltage AC Max: 264V
Input Voltage AC Min: 90V
Power Supply Output Type: Fixed
Output Current - Output 1: 1.666A
Output Current - Output 2: -
Output Current - Output 3: -
Output Voltage - Output 1: 9VDC
Output Voltage - Output 2: -
Output Voltage - Output 3: -
Power Supply Applications: Medical

Delivery and price
Units per pack	50
Price	35.47 €
Current stock	10+
Lead time	30 days

Datasheet

KMS-A Series 

## 15-60W Medical AC-DC PCB-Mount Power Supplies 

https://product.tdk.com/en/power/kms-a https://www.emea.lambda.tdk.com/kms-a 

The encapsulated KMS-A PCB-Mount power supplies are certified to IEC/ES/EN 60601-1, IEC/EN 62368-1 and meet EN55011 Class B for conducted and radiated emissions. Requiring no earth ground, the KMS-A series is ideally suited for a wide range of medical and industrial applications, including dental, home healthcare and test and measurement. 

|**Features**|**Benefits**|
|---|---|
|• 4kVac Input to Output Isolation (2 x MoPP)|• Suitable for B & BF Applications Worldwide|
|• Wide Temperature Range (up to -40 to +80°C)|• Suitable for Harsh Environments|
|• Low No Load Power Consumption|• Energy Saving|
|• Class II Double Insulated Construction|• No Ground Connection Needed|
|• Epoxy Encapsulated|• Improved Shock and Vibration Performance|



|**Model Selector**|**Model Selector**||||||||
|---|---|---|---|---|---|---|---|---|
|Model|Output Voltage|Output Voltage|Maximum Current|Maximum Power|Ripple & Noise||Efficiency|Maximum Load|
||(V)||(A)|(W)|(mVpk-pk)|(at 230Vac) (%)||Capacitance (uF)|
|KMS15A-5|5||3|15|120||79|7,000|
|KMS30A-5|5||5|25|100||84|6,800|
|KMS60A-5|5.1||10|51|100||86|10,000|
|KMS15A-9|9||1.666|15|120||80|5,000|
|KMS60A-9|9||6.666|60|100||87|5,000|
|KMS15A-12|12||1.25|15|120||84|1,500|
|KMS30A-12|12||2.5|30|150||89|1,600|
|KMS60A-12|12||5|60|120||88|5,000|
|KMS15A-15|15||1|15|150||84|1,000|
|KMS30A-15|15||2|30|150||86|1,200|
|KMS60A-15|15||4|60|150||86|4,000|
|KMS15A-24|24||0.625|15|240||85|470|
|KMS30A-24|24||1.25|30|240||86|470|
|KMS60A-24|24||2.5|60|240||87|2,000|
||||||||||
|**KMS**|||**15A**||**-24**|||**/SC**|



|15A   15W Output Power|15A   15W Output Power||-5    5V Output (5.1V for 60W Model)|-5    5V Output (5.1V for 60W Model)||Blank PCB mount standard model|Blank PCB mount standard model|
|---|---|---|---|---|---|---|---|
|30A   30W Output Power|30A   30W Output Power||-9    9V Output (15W and 60W Models)|-9    9V Output (15W and 60W Models)||/SC|Screw terminals|
|60A   60W Output Power|60A   60W Output Power||-12  12V Output|-12  12V Output|||(Not sold in the Americas)|
||||-15  15V Output|-15  15V Output||||
||||-24  24V Output|-24  24V Output||||



KMS-A Series 

1 

**==> picture [516 x 34] intentionally omitted <==**

## **Specifications** 

|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|**Specifcations**|
|---|---|---|---|---|---|---|---|
|Model<br>KMS15A||||||KMS30A|KMS60A|
|**Input**||||||||
|Input Voltage Range (Operating)(1)||Vac|90 - 264|||||
|Nominal Input Voltage Range||Vac|100 - 240<br>|||||
|Input Frequency||Hz|47 - 440 (Note: Safety certifed for 47-63Hz only)<br>|||||
|DC Input Voltage Range||Vdc|120 - 370 (Note: Safety certifed for AC input only)|||||
|Input Current (115 / 230Vac)||A|0.385 / 0.25|||0.65 / 0.4|1.5 / 1|
|Inrush Current (115 / 230Vac, 25°C)||A|20 / 40|||30 / 60|55 / 95|
|Leakage Current (264Vac)||mA|<0.1|||||
|No Load Power Consumption||W|<0.1|||<0.15|<0.3|
|Hold Up Time (typ) (115 / 230Vac)<br>||ms|15 / 56|||>10||
|Effciency||-|See Model Selector Table|||||
|<br>Conducted & Radiated EMI<br>||-|EN55011-B (Class A radiated EMI for 30W models)|||||
|Safety Certifcations and Markings||-|IEC/EN62368-1, IEC/EN60601-1, ANSI/AAMI ES60601-1, CE Mark and UKCA Mark|||||
|||||||||
|**Immunity**||||||||
|||||||||
|Test|Standard||Test Level|Criteria|Notes|||
|ESD|IEC61000-4-2||3|A|Contact Discharge: ±6kV, Air Discharge: ±8kV|||
|Electrical Fast Transient Burst|IEC61000-4-4||3|A|Voltage Peak: 2kV at 5kHz|||
|Surge|IEC61000-4-5||2|A|Test Level: 1kV, Max Peak Current: 500A|||
|Conducted Susceptibility|IEC61000-4-6||2 / 3|A|Test Level: 3Vrms / 10Vrms for KMS30A Models|||
|Voltage Dips<br>and Short Interruptions|IEC61000-4-11<br>(100Vac)||0% for 1/2 cycle<br>0% for 1 cycle<br>70% for 25/30 cycles<br>0% for 250/300 cycles|A<br>B<br>A<br>B|-<br>-<br>-<br>-|||
|Voltage Dips<br>and Short Interruptions|IEC61000-4-11<br>(240Vac)||0% for 1/2 cycle<br>0% for 1 cycle<br>70% for 25/30 cycles<br>0% for 250/300 cycles|A<br>A<br>A<br>B|-<br>-<br>-<br>-|||
|||||||||
|**Specifcations**||||||||
|Model<br>KMS15A||||||KMS30A|KMS60A|
|**Output**||||||||
|Output Voltage Set Accuracy||%|±2|||||
|Output Voltage Adjustment||-|None|||||
|Ripple and Noise||-|See Model Selector Table|||||
|Switching Frequency<br>||kHz|133|||66||
|Temperature Coeffcient||%/°C|<br>±0.05|||||
|Minimum Load||-|None|||||
|Overcurrent Protection||%|>105 (Hiccup Mode with Auto-Recovery)|||||
|Overvoltage Protection||%|110-150 (Zener Diode Clamp)|||||
|Parallel Operation||-|Not possible|||||



KMS-A Series 

2 

## **Specifications** 

|Model||KMS15A|KMS30A|KMS60A|
|---|---|---|---|---|
|**Environmental**|||||
|Operating Temperature(2)|°C|-40 to +80, derate linearly to 30% load from 50 to 80. (73 maximum for <115Vac input)|||
|Maximum Case Temperature|°C||80 (73 for <115Vac)||
|Storage Temperature|°C||-40 to +90||
|Humidity (non condensing)|%RH||95||
|Cooling|-||Convection||
|Altitude|m||5,000||
|Withstand Voltage (For 1 minute)|Vac||Input to Output 4,000 (2x MOPP)|Input to Output 4,000 (2x MOPP)|
|**Other**|||||
|Weight (Typ)|g|60|135|260|
|Size (LxWxH)|mm|52.5 x 27.5 x 23.5|64.1 x 45.6 x 23.5|89.0 x 63.5 x 27.6|
|Size (LxWxH)|Inches|2.07 x 1.08 x 0.93|2.52 x 1.8 x 0.93|3.5 x 2.5 x 1.06|
|Case Material|-|Plastic Resin Fiberglass Case (UL 94V-0)|||
|MTBF (MIL-HDBK-217F, 25°C)|Hours|200,000 to 400,000 (Model Dependent)|||
|Warranty|yrs||3||



Notes: 

See website for detailed specifications, test methods and installation manual (1) Derate linearly to 80% load from 110Vac to 90Vac (100Vac to 90Vac for KMS15A) (2) Derate linearly to 80% load from -30°C to -40°C 

## **Pinout** 

|Pin|KMS15A|KMS30A|KMS60A|
|---|---|---|---|
|1|AC (L)|AC (N)|AC (L)|
|2|AC (N)|AC (L)|AC (N)|
|3|+Vout|-Vout|+Vout|
|4|-Vout|No Pin|No Pin|
|5|-|+Vout|-Vout|
|6|-|-|No Pin|
|7|-|-|No Pin|



## **KMS15A Outline Drawing** 

KMS-A Series 

3 

## **KMS30A Outline Drawing** 

## **KMS60A Outline Drawing** 

KMS-A Series 

4 

## **KMS15A with Screw Terminals** 

## **KMS15A /SC Pinout** 

|**KMS15A /SC Pinout**||
|---|---|
|Pin|Function|
|1<br>2<br>3|N/C<br>AC (L)<br>AC (N)|
|4|N/C|
|5|+DC Out|
|6|-DC Out|
|7<br>8|N/C<br>N/C|



## **KMS30A with Screw Terminals** 

## **KMS30A /SC Pinout** 

|**KMS30A /SC Pinout**||
|---|---|
|Pin|Function|
|1|AC (N)|
|2|N/C|
|3|AC (L)|
|4<br>5|N/C<br>-DC Out|
|6|N/C|
|7|+DC Out|
|8|N/C|



## **KMS60A with Screw Terminals** 

## **KMS60A /SC Pinout** 

|**KMS60A /SC Pinout**||
|---|---|
|Pin|Function|
|1|N/C|
|2|AC (L)|
|3|AC (N)|
|4<br>5<br>6|+DC Out<br>N/C<br>-DC Out|
|7<br>8|N/C<br>N/C|



KMS-A Series 

5 

## **TDK-Lambda France SAS** 

Tel: +33 1 60 12 71 65 tlf.fr-powersolutions@tdk.com www.emea.lambda.tdk.com/fr 

## **TDK-Lambda Americas** 

Tel:  +1 800-LAMBDA-4 or 1-800-526-2324 tla.powersolutions@tdk.com www.us.lambda.tdk.com 

## **Italy Sales Office** 

Tel: +39 02 61 29 38 63 tlf.it-powersolutions@tdk.com www.emea.lambda.tdk.com/it 

## **Netherlands** 

## **TDK Electronics do Brasil Ltda** 

Tel: +55 11 3289-9599 sales.br@tdk-electronics.tdk.com www.tdk-electronics.tdk.com/en 

tlf.nl-powersolutions@tdk.com www.emea.lambda.tdk.com/nl 

## **TDK-Lambda Germany GmbH** 

Tel: +49 7841 666 0 tlg.powersolutions@tdk.com www.emea.lambda.tdk.com/de 

## **TDK-Lambda Corporation** 

Tel: +81-3-6778-1113 www.jp.lambda.tdk.com 

## **TDK-Lambda (China) Electronics Co. Ltd.** 

Tel: +86 21 6485-0777 tlc.powersolutions@tdk.com www.lambda.tdk.com.cn 

**Austria Sales Office** Tel: +43 2256 655 84 tlg.at-powersolutions@tdk.com www.emea.lambda.tdk.com/at 

## **Switzerland Sales Office** 

Tel: +41 44 850 53 53 tlg.ch-powersolutions@tdk.com www.emea.lambda.tdk.com/ch 

## **Nordic Sales Office** 

## **TDK-Lambda Singapore Pte Ltd.** 

Tel: +65 6251 7211 tls.marketing@tdk.com www.sg.lambda.tdk.com 

**TDK India Private Limited, Power Supply Division** Tel:   +91 80 4039-0660 mathew.philip@tdk.com www.sg.lambda.tdk.com 

Tel: +45 8853 8086 tlg.dk-powersolutions@tdk.com www.emea.lambda.tdk.com/dk 

## **TDK-Lambda UK Ltd.** 

Tel: +44 (0) 12 71 85 66 66 tlu.powersolutions@tdk.com www.emea.lambda.tdk.com/uk 

## **TDK-Lambda Ltd.** 

Tel: +9 723 902 4333 tli.powersolutions@tdk.com www.emea.lambda.tdk.com/il-en 

For additional information, please visit https://product.tdk.com/en/power/ 

KMS-A_360052_July 31st, 2023 V2 

KMS-A Series 

6

Updated at June 3, 2026

TDK-Lambda is globally recognized as a premier manufacturer of highly reliable power supply solutions and power management equipment. With a strong engineering heritage, the company is a trusted partner for mission-critical applications across the industrial, medical, telecommunications, and test and measurement sectors, delivering components that meet stringent international performance and safety standards. Our extensive portfolio of TDK-Lambda products is heavily focused on comprehensive power and line protection, highlighted by a vast selection of industry-leading AC/DC converters. Engineered to deliver exceptional efficiency and stable performance in demanding environments, these power supplies form the backbone of our offering and are built to support the rigorous power demands of modern electronic infrastructure. To complement these primary power solutions, we also offer a targeted range of high-performance DC/DC converters designed for precise, board-level voltage regulation. Furthermore, to ensure the optimal performance and longevity of these power systems, our catalog includes specialized cooling and thermal management components, such as natural convection heat sinks, providing complete thermal stability for your most critical designs.

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