TDK-Lambda Switching Power Supply, KMS40-9, 9V dc, 4.44A, 40W, 1 Output, 100 → 375 V dc, 90 → 264 V ac

Image representative of range

View all Switching Power Supplies
Bulk discount available

Subtotal (1 unit)*

£77.45

(exc. VAT)

£92.94

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • 999,999,999 unit(s) shipping from 05 February 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 - 4£77.45
5 - 9£75.13
10 - 24£72.80
25 - 49£70.48
50 +£68.17

*price indicative

RS Stock No.:
681-1455
Mfr. Part No.:
KMS40-9
Brand:
TDK-Lambda
Find similar products by selecting one or more attributes.
Select all

Brand

TDK-Lambda

Output Voltage

9V dc

Output Current

4.44A

Power Rating

40W

Number of Outputs

1

Input Voltage

100 → 375 V dc, 90 → 264 V ac

Mounting Type

PCB Mount

Package Type

Encapsulated

Length

89mm

Width

63.5mm

Medical Approved

Yes

Depth

27mm

Minimum Temperature

-25°C

Weight

280g

Maximum Temperature

+70°C

COO (Country of Origin):
TW

TDK-Lambda, 9.9 to 40W, Medical Approved, PCB Mount, Encapsulated, Switch Mode AC-DC Power Supply - KM Series


Medical Safety Certifications (4kVac Input - Output)
Small and lightweight
Over current/voltage/temperature protection
Plastic case UL94V-0 rated
Conducted EMI to EN 55011 (KM15 Class B, KM40 Class A)
Class II (No ground needed)

Note

De-rate above 50°C operating temperature.

Standards

UL 60601-1, IEC 60601-1, EN 60950-1

Approvals

UL recognised component

Related links