NKE Series
www.murata-ps.com
Isolated Sub-Miniature 1W Single Output DC/DC Converters
SELECTION GUIDE
Nominal
Input
Current at
Rated Load
Output
Voltage Current
Output
Isolation
Capacitance
Input
Efficiency
%
MTTF1
kHrs
Package
Style
Voltage
Order Code
V
V
mA
mA
pF
Min.
Typ.
72
75
74
72
75
74
74
69
77
75
78
78
74
69
77
75
78
78
72
78
79
81
72
78
79
81
NKE0303DC
NKE0305DC
NKE0309DC
NKE0303SC
NKE0305SC
NKE0309SC
NKE0503DC
NKE0505DC
NKE0505DEC
NKE0509DC
NKE0512DC
NKE0515DC
NKE0503SC
NKE0505SC
NKE0505SEC
NKE0509SC
NKE0512SC
NKE0515SC
NKE1205DC
NKE1209DC
NKE1212DC
NKE1215DC
NKE1205SC
NKE1209SC
NKE1212SC
NKE1215SC
3.3
3.3
3.3
3.3
3.3
3.3
5
3.3
5
303
200
111
303
200
111
303
200
200
111
83
400
400
403
400
400
403
270
289
250
266
260
256
270
289
250
266
260
256
117
107
105
103
117
107
105
103
68
72
71
68
72
71
70
66
75
72
73
74
70
66
75
72
73
74
68
72
73
76
68
72
73
76
30
35
30
30
35
30
40
28
34
29
30
32
40
28
34
29
30
32
35
50
57
60
35
50
57
60
1234
632
DIP
SIP
9
1204
1234
632
FEATURES
3.3
5
ꢀRoHS Compliant
9
1204
619
ꢀSub-Miniature SIP & DIP Styles
ꢀ3kVDC Isolation
3.3
5
5
2414
419
5
5
ꢀUL Recognised
DIP
SIP
5
9
1173
633
ꢀWide Temperature performance at full
5
12
15
3.3
5
1 Watt load, –40°C to 85°C
5
66
360
ꢀIncreased Power Density to 2.09W/cm3
ꢀUL 94V-0 Package Material
ꢀFootprint at 0.69cm2
5
303
200
200
111
83
619
5
2414
419
5
5
5
9
1173
633
5
12
15
5
ꢀIndustry Standard Pinout
5
66
360
ꢀ3.3V, 5V & 12V Input
12
12
12
12
12
12
12
12
200
111
83
620
9
488
ꢀ3.3V, 5V, 9V, 12V and 15V Output
ꢀInternal SMD Construction
DIP
SIP
12
15
5
360
66
252
200
111
83
620
ꢀFully Encapsulated with Toroidal
9
488
Magnetics
12
15
360
ꢀMTTF up to 2.4 Million hours
ꢀCustom Solutions Available
66
252
NKE0505SEC/NKE0505DEC offers higher efficiency than NKE0505SC/NKE0505DC but over a narrower operating temperature range.
See temperature characteristics graph.
ꢀNo Electrolytic or Tantalum Capacitors
INPUT CHARACTERISTICS
Parameter
Conditions
Min.
2.97
4.5
Typ.
3.3
Max.
3.63
5.5
Units
V
PRODUCT OVERVIEW
Continuous operation, 3.3V input types
Continuous operation, 5V input types
Continuous operation, 12V input types
3.3V input types
The NKE sub-miniature series of DC/DC Converters
is particularly suited to isolating and/or converting
DC power rails. A smaller package size, improved
efficiency, lower output ripple and 3kVDC isolation
capability through state of the art packaging and
improved technology. The galvanic isolation allows
the device to be configured to provide an isolated
negative rail in systems where only positive rails
exist. The wide temperature range guarantees
startup from –40°C and full 1 watt output at 85°C.
Voltage range
5.0
10.8
12.0
40
13.2
60
Reflected ripple current
mA p-p
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
300°C
530mW
5.5V
Input voltage VIN, NKE03 types
Input voltage VIN, NKE05 types
7V
Input voltage VIN, NKE12 types
15V
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_NKE.K03 Page 1 of 7