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NFM-15 Series - 15W Single Output On-board Type Medical PSU

NFM-15 is a 15W Single Output On-board Type Medical PSU Series



Featuring class II isolation levels they can be equiped into non-patient contact medical equipment and still comply with class B as per EMI regulations. With energy saving and the environment in mind the no load power consumption is lower than 0.5W so that it complies with the requirements for “green mode” power supplies. Standard functions include short circuit, over load and over voltage protections and over temperature protection is equipped on the whole NFM series. Suitable for use in general medical or for industrial usage that require low leakage current, general electronic applications and low profile IT equipment these on-board type PSU’s can be applied on the main control PCB of the final systems.

Additional information





Range Power



  • Universal AC input/full range
  • Ultra low profile
  • Isolation class II
  • No load power consumption <0.5W
  • Short circuit, OLP, OVP & OTP
  • Fixed switching frequency at 67KHz
  • Compliance to UL60601-1 & TUV EN60601-1 medical standards
  • Cooling by free air convection
  • Non-patient contact medical
  • General electronics
  • IT equipment
  • Industrial
Input Voltage 85 ~ 264VAC 120 ~ 370VDC
Input Frequency 47 ~ 440Hz
AC Current 0.35A/115VAC 0.2A/230VAC
Inrush Current 30A/115VAC 50A/230VAC typically, cold start
Setup, Rise Time 1000ms, 20ms/230VAC 1000ms, 20ms/115VAC at full load
Holdup Time 100ms/230VAC 20ms/115VAC typically at full load
Overload Protection Above 105% rated output power
Hiccup mode, recovers automatically after fault condition is removed
Over Voltage Protection Protection type Shut off
Over Temperature Protection Tj 145°C typically (U1) Detect on main control IC
Shut down o/p voltage, recovers automatically after temperature goes down
Working Temperature -20°C to +70°C (Refer to output load derating curve)
Working Humidity 20 ~ 90% RH non-condensing
Storage Temperature, Humidity -40°C to +85°C, 10 to 95% RH
Temp Coefficient ±0.03%/°C (0 ~ 50°C)
Vibration 10 ~ 500Hz, 2G 10min./1cycle, Period for 60min.each along X, Y, Z axes
Satety Standards UL60601-1,TUV EN60601-1 Approved
Withstand Voltage I/P-O/P:4KVAC
Isolation Resistance I/P-O/P:100M Ohms/500VDC
EMC Compliance to EN55011(CISPR11),EN55022 (CISPR22) Class B, EN61000-3-2,-3
EN61000-4-2,3,4,5,6,8,11; ENV50204, EN55024, EN60601-1-2, EN61204-3 Medical level, criteria A.
MTBF 499.7Khrs min. MIL-HDBK-217F (25°C)
Dimensions 70 x 48 x 22mm