Datasheet
Output Current (Amps)
Ambient Temperature (
°
C)
400 lfm
200 lfm
300 lfm
100 lfm
30 40 50 60 70
20
24
8
16
12
32
40
28
36
UCH-3.3/35-D24 Maximum Current Temperature Derating (at sea level)
No baseplate, VIN = 24V, transverse airflow
V
IN
= 24V
V
IN
= 18V
Efficiency (%)
Load Current (Amps)
V
IN
= 36V
75
70
85
80
90
63 9 12 15 18 21 27 3024 33
95
Power Dissipation
(V
IN
= 24V)
UCH-3.3/35-D24 Efficiency and Power Dissipation
vs Line Voltage and Load Current @25˚C
Power Dissipation (Watts)
16
20
18
14
0
2
6
10
4
8
12
Output Current (Amps)
Ambient Temperature (
°
C)
200 lfm
300 lfm
100 lfm
30 40 50 60 8070
26
27
25
24
23
29
31
28
30
UCH-3.3/30-D48 Maximum Current Temperature Derating (at sea level)
No baseplate, V
IN = 48V, transverse airflow
Efficiency (%)
Load Current (Amps)
75
65
70
60
85
80
90
63 9 12 15 18 21 27 3024
95
Power Dissipation
(V
IN
= 48V)
V
IN
= 36V
V
IN
= 48V
V
IN
= 75V
UCH-3.3/30-D48 Efficiency and Power Dissipation
vs Line Voltage and Load Current @25˚C
Power Dissipation (Watts)
0
1
3
5
2
4
6
8
10
7
9
Efficiency (%)
Load Current (Amps)
V
IN
= 75V
75
85
80
90
4356789 11 1210 13 1514
95
Power Dissipation
(V
IN
= 48V)
70
65
55
60
V
IN
= 48V
V
IN
= 36V
UCH-3.3/15-D48 Efficiency and Power Dissipation
vs Line Voltage and Load Current @25˚C
Power Dissipation (Watts)
2
3
4
5
6
7
8
9
10
TYPICAL PERFORMANCE DATA
www.murata-ps.com/support
Single Output UCH Models
Isolated, “Half-Brick”
1.8−15V Output DC/DC Converters
MDC_UCH Models.C01 Page 10 of 18