Medical PSU
FSP400-1K20M1
DESCRIPTION
This series of AC-DC switching power supplies in a
package of 4 x 7 x 1.58 inches are capable of delivering
400 watts of continuous power at 7 CFM forced air cooling
or 300 watts at convection cooling. The units are
constructed on a printed circuit board with a U-bracket for
mechanical support and heat sinking. A cover and fan
assembly can be added during manufacturing for 400 watt
output without the change of any dimension. They are
designed for medical applications, but not for life-
supporting equipment. The units are certified also to
IEC/EN/UL 60950-1 and suitable for data networking,
computer and telecommunication applications.
SAFETY STANDARD APPAOVAL
FEATURES
OUTPUT SPECIFICATION
4 x 7 inch footprint with 1.58 inch low profile
100-240 VAC input with active PFC
Less than 300 μA leakage current
300 watt convect ion rating up to +50℃
400 watt output with 7 CFM forced air
Standby output 5VDC a t 100mA
EN55011 / 5 5022 Class B conducted emissions
Inhibit - TTL low to disable output
Standard PS Off and DC OK signals
Efficiency greater than 88%
Ripple & Noise:
Maximum excursion of 4% or
better on all models,
recovering to 1% of final
value within 500 us after a
25% step load change
Protected to output short
circuit conditions
Over Current
Protection:
ENVIRONMENTAL SPECIFICATION
TEMP.Range:
Operating Temperature:-10°C to
Compliant wi th RoHS requirements
+70°C
Storage Temperature: -40°C to +
85℃
WATTAGE
Wattage:
400W
DIMENSION
Dimension:
177.8mm(L) x 101.6mm(W) x
39.6mm(H)
INPUT SPECIFICATION
Input Range:
90-264 Vdc
Input Frequency:
Input Current:
47-63 Hz
4.2A(rms) for115VAC,
2.1A(rms) for230VAC
300 µA max. @ 264 VAC,63
Hz
Leakage Current:
*Output Voltage and Current Rating
+12V1
120mV
±2%
33.34A
0A
Ripple-Noise(R-P) mV
Regulation Load %
Output Max.(A)
Output Min.(A)
NOTES
1. Change suffix “B” for U-Bracket form to “C” for enclosed form with cover and fan assembly, e.g. PM400-14C.
2. 300 W without moving air or 400 W with 7 CFM forced air provided by user for “B” version, 400 W for “C” version with
cover and fan assembly
3. Ripple and noise is maximum peak to peak voltage value measured at output within 20 MHz bandwidth, at rated line
voltage and output load ranges, and with a 10 μF tantalum capacitor in parallel with a 0.1 μF ceramic capacitor across the
output.
MECHANICAL SPECIFICATION
This content is subject to change, please refer to specification for more detail.
FSP reserve the right to change the content without prior notice