Data Sheet

LOAD
LOAD
LOAD
DDR-120C-12 DDR-120C-24 DDR-120C-48
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms
DDR-120 series
120W DIN Rail Type DC-DC Converter
DDR-120 series
120W DIN Rail Type DC-DC Converter
DDR-120 series
120W DIN Rail Type DC-DC Converter
TIME
TIME
TIME
TIME
TIME
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
DDR-120A-12
DDR-120B-12
DDR-120A-24
DDR-120B-24
DDR-120A-48
DDR-120B-48
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20ms 30ms 40ms 50ms 60ms
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 90ms
0ms 10ms 20ms 30ms 40ms 50ms 60ms0ms 10ms 20ms 30ms 40ms 50ms 60ms
TIME
0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 90ms
TIME
TIME
TIME
TIME
TIME
LOAD
LOAD
LOAD
DDR-120D-12 DDR-120D-24 DDR-120D-48
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms
0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms
10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 90ms 100ms 130ms120ms110ms
TIME
0ms10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 90ms 100ms 130ms120ms110ms
Hold-up Time
D type is in compliance with S2 level (10ms), while Atypes are in compliance with S1 level (3ms) at full load output
condition. To fulfil the requirements of S2 level (10ms), B types require de-rating their output load to 70%, C types
require de-rating their output load to 60%, please refer to the curve diagrams below.
File Name:DDR-120-SPEC 2019-08-02
EN50155: 2007 version -
EN50155: 2017 version - Comply with S1 level (6ms)