NKA Series

Isolated Sub-Miniature 1W Dual Output DC-DC Converters

KDC_NKA.P01 Page 1 of 9

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For full details go to

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SELECTION GUIDE

Order Code

Nominal

Input

Voltage

Output

Voltage

Output

Current

Input

Current

at Rated

Load

Efficiency

Isolation

Capacitance

MTTF1 Package

Style

Recommended

Alternative

V

V

mA

%

pF

kHrs

NKA0305SC

3.3

±5

±100

383

79

22

1121

SIP

NKA0312SC

3.3

±12

±42

390

78

31

375

SIP

NKA0315SC

3.3

±15

±33

384

79

32

206

SIP

NKA0503SC

5

±3.3

±152

259

77

22

205

SIP

NKA0505SC

5

±5

±100

285

70

21

1697

SIP

NKA0509SC

5

±9

±56

263

76

25

682

SIP

NKA0512SC

5

±12

±42

255

78

28

343

SIP

NKA0515SC

5

±15

±33

253

79

29

188

SIP

NKA1205SC

12

±5

±100

112

74

33

559

SIP

NKA1209SC

12

±9

±56

106

79

48

375

SIP

NKA1212SC

12

±12

±42

104

81

55

243

SIP

NKA1215SC

12

±15

±33

102

82

60

154

SIP

NKA1215DC

12

±15

±33

102

82

60

154

DIP

NKA0303DC

3.3

±3.3

±152

407

74

20

195

DIP

NKA0303SC

NKA0305DC

3.3

±5

±100

383

79

22

1121

DIP

NKA0305SC

NKA0309DC

3.3

±9

±56

402

75

30

1035

DIP

Contact Murata

NKA0312DC

3.3

±12

±42

390

78

31

375

DIP

Contact Murata

NKA0315DC

3.3

±15

±33

384

79

32

206

DIP

NKA0315SC

NKA0303SC

3.3

±3.3

±152

407

74

20

195

SIP

Contact Murata

NKA0309SC

3.3

±9

±56

402

75

30

1035

SIP

Contact Murata

NKA0503DC

5

±3.3

±152

259

77

22

205

DIP

NKA0503SC

NKA0505DC

5

±5

±100

285

70

21

1697

DIP

NMA0505DC

NKA0509DC

5

±9

±56

263

76

25

682

DIP

NMA0509DC

NKA0512DC

5

±12

±42

255

78

28

343

DIP

NMA0512DC

NKA0515DC

5

±15

±33

253

79

29

188

DIP

NMA0515DC

NKA0505DEC

5

±5

±100

249

80

26

1557

DIP

NMA0505DC

NKA0505SEC

5

±5

±100

249

80

26

1557

SIP

NMA0505SC

NKA1205DC

12

±5

±100

112

74

33

559

DIP

NMA1205DC

NKA1209DC

12

±9

±56

106

79

48

375

DIP

NMA1209DC

NKA1212DC

12

±12

±42

104

81

55

243

DIP

NMA1212DC

NKA0505DEC/NKA0505SEC offer higher efficiency than NKA0505SC/NKA0505DC but over a narrower operating temperature range.

See temperature characteristics graph.

INPUT CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Voltage range

Continuous operation, 3.3V input types

2.97

3.3

3.63

V

Continuous operation, 5V input types

4.5

5

5.5

Continuous operation, 12V input types

10.8

12

13.2

Reflected ripple current

3.3V input types

30

60

mA p-p

All other types

20

35

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.

DESCRIPTION

The NKA sub-miniature series of industrial

temperature range DC-DC converters are the

standard building blocks for on-board distributed

power systems. The series offers smaller package

size, improved efficiency, lower output ripple and

3kVDC isolation capability through the use of state

of the art packaging and technology. Ideally suited

for providing dual rail supplies on primarily digital

boards with the added benefit of galvanic isolation

to reduce switching noise.

All of the rated power may be drawn from a single

pin provided the total load does not exceed 1 watt.

FEATURES

Efficiency up to 82%

3kVDC isolation ‘Hi Pot Test’

Wide temperature performance at full

1 Watt load, –40°C to 85°C

Industry standard pinout

Power sharing on output

3.3V, 5V & 12V inputs

3.3V, 5V, 9V, 12V & 15V outputs

Internal SMD construction

No external components required

MTTF up to 1.6 Million hours

No electrolytic or tantalum capacitors

Pin compatible with NMA & MEA1 series