www.murata-ps.com/support
UEI30 Series
30W Isolated Wide-Range DC-DC Converters
MDC_UEI Series 30W.B02 Page 10 of 18
PERFORMANCE DATA
Effi ciency vs. Line Voltage and Load Current @ 25°C
UEI30-150-Q48
Power Dissipation vs. Load Current @ 25°C
UEI30-150-Q48
Maximum Current Temperature Derating @Sea Level
(VIN = 75V, transverse airfl ow)
Maximum Current Temperature Derating @Sea Level
(VIN = 18-48V, transverse airfl ow)
0.7 0.8 1.0 1.1 1.2 1.3 1.5 1.6 1.7 1.9 2.0
72
74
76
78
80
82
84
86
88
90
92
Vin = 48 V
Vin = 75 V
Vin = 18 V
Vin = 24 V
Load Current (Amps)
Efficiency (%)
0.7 0.8 1.0 1.1 1.2 1.3 1.5 1.6 1.7 1.9 2.
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Vin = 48V
Vin = 75V
Vin = 18V
Vin = 24V
Load Current
Am
s
Power Dissipation (Watts)
20 25 30 35 40 45 50 55 60 65 70 75 80 85
1.0
1.2
1.4
1.6
1.8
2.0
2.2
Natural Convection
Output Current (Amps)
Ambient Temperature (ºC)
20 25 30 35 40 45 50 55 60 65 70 75 80 85
1.0
1.2
1.4
1.6
1.8
2.0
2.2
Output Current (Amps)
Ambient Temperature (ºC)
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
