KDD25 SERIES
SPECIFICATION
GENERAL SPECIFICATION
* Switching frequency: .........................
* Isolation voltage: ..............................
* Isolation resistance: ..........................
* Operating ambient temperature: .........
* Storage temperature: ........................
* Max. Case temperature: .....................
* M.T.B.F.: ..........................................
* Cooling: ...........................................
* Temperature coefficient: ....................
* Dimension: ......................................
DC-DC CONVERTER
21.5 ~ 25W
All Specifications Typical At Nominal Line, Full Load, 25
℃
Unless Otherwise Noticed
80KHz
1,500VDC
1G
Ω(min.)
-25 to +71℃
-40 to +85℃
90℃
389,000Hrs at @ GF40, according to MIL-HDBK-217F
Free air convection
±0.02%
/
℃
70 x 70 x 23mm
INPUT SPECIFICATIONS
* Input voltage range / frequency: .......... 9 ~ 18VDC for 12V
18 ~ 36VDC for 24V
36 ~ 72VDC for 48V
* Input filter: ....................................... Pi type
* No load input current: ........................ 35mA for 12V in
30mA for 24V in
25mA for 12V in
* Max. Input voltage: ........................... 20VDC for 12V in
40VDC for 24V in
75VDC for 48V in
OUTPUT SPECIFICATIONS
* Output voltage accuracy: ...................
±1
at Vo_nom
* Minimum load: .................................. No load for single output models
±20%
at Vo_nom for dual output models
* Line regulation: ................................
±1%
at Vo_nom
* Load regulation: ...............................
±2%
at Vo_nom for single output models
±5%
at Vo_nom for dual output models
* Ripple & noise: ................................. Vout.x
±2%
* Efficiency: ........................................ Up to 83%, see model list
* Derating: ......................................... See table 1
* Case material: .................................. Metal
CONTROL AND PROTECTION
* Input reversed: ................................. Shunt diode use external fuse
* Output short circuit: .......................... Continuous
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