Released 2020

Features of MHFS31212

• Industry Standard SIP8
• Wide input range DC4.5-18V
• I/O isolation voltage AC3,000V , DC4,200V (1 minute)
• Built-in overcurrent protection circuits (recovers automatically)
• For medical electric equipment
(ANSI/AAMI ES60601-1, EN60601-1 3rd)
Medical Isolation Grade 2MOOP (AC250V)
• Built-in remote ON/OFF
• High reliability : not built-in aluminum and tantalum electrolytic capacitor

Ordering Information and Options

MHF(1) S(2) 3(3) 24(4) 05(5) 

(1) Series name
(2) Single output
(3) Output wattage
(4) Input voltage
(5) Output voltage


Contents Specifications
Input Voltage DC4.5 - 18V
Output Wattage 3W
Voltage/Current 12V 0.25A
Adjustable  Voltage Range
External Resistor Calc
Fixed (TRM pin open) Available to adjust -5% / +20% by external variable resister
Protection Circuit And Others Overcurrent Protection Works over 105% of rating and recovers automatically
Overvoltage Protection -
Remote ON/OFF Provided (Negative logic L: ON, H: OFF)
Remote Sensing -
Others -
Operating Temperature/Humidity -40 to +85℃, 20 to 95%RH (Non condensing) (Required derating)
Safety And Noise Regulations Agency Approvals (At only AC input) UL62368-1, EN62368-1, c-UL (equivalent to CAN/CSA-C22.2 No.62368-1), ANSI/AAMI ES60601-1, EN60601-1 3rd, c-UL (equivalent to CAN/CSA-C22.2 No.60601-1)
Conducted Noise -
High Attenuation -
Others Dimensions (WxHxD) 22.0x12.0x9.5mm [0.87x0.48x0.38 inches]
Weight 7g max
Cooling Method Convection/Forced air
Warranty Period 5-year
  • * For further information and how to use, please see in Cosel product catalog.

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Technical Data
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