Rev. B

DCNSR Series

1.5 to 15 Watts

1A Output Current

Non-Isolated DC/DC Converters

Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833

09/18/2013

603-778-2300 www.wallindustries.com Fax 603-778-9797

Page 3 of 5

NOTES

1. The DCNSR series converters can be used to convert a positive voltage into a negative voltage.

2. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40°C. (Ground, Benign, controlled environment)

MIL-HDBK-217F Notice2 @Ta=25°C, Full load. (Ground, Benign, controlled environment)

CAUTION: This power module is not internally fused. An input line fuse must always be used.

Figure 1

C1 and C2 are required and should be positioned close to the converter pins. Maximum capacitive load including C2 is 470µF.

C1

10µF/50V

1210 X5R MLCC

C2

10µF/25V

1206 X5R MLCC

POSITIVE OUTPUT APPLICATION

Output Current

Efficiency

Model Number

Input Voltage

Range

Nominal

Input Voltage

Output

Voltage

Min Load

Max Load

Switching

Frequency

No Load

Current

Output

Power

Min Vin

Max Vin

DCNSR-12S1.5

4.6 – 36 VDC

12 VDC

1.5 VDC

0A

1A

300KHz

1mA

1.5W

77.0%

66.5%

DCNSR-12S1.8

4.6 – 36 VDC

12 VDC

1.8 VDC

0A

1A

300KHz

1mA

1.8W

80.5%

70.0%

DCNSR-12S2.5

4.6 – 36 VDC

12 VDC

2.5 VDC

0A

1A

300KHz

1mA

2.5W

83.5%

75.5%

DCNSR-12S3.0

4.6 – 36 VDC

12 VDC

3.0 VDC

0A

1A

300KHz

1.5mA

3W

86.5%

78.5%

DCNSR-12S3.3

4.6 – 36 VDC

12 VDC

3.3 VDC

0A

1A

300KHz

1.5mA

3.3W

87.5%

79.5%

DCNSR-12S05

6.5 – 36 VDC

12 VDC

5 VDC

0A

1A

580KHz

2.5mA

5W

91.5%

83.0%

DCNSR-12S6.5

8 – 36 VDC

12 VDC

6.5 VDC

0A

1A

580KHz

3mA

6.5W

93.0%

86.0%

DCNSR-12S09

10.5 – 36 VDC

12 VDC

9 VDC

0A

1A

580KHz

3.5mA

9W

94.5%

88.5%

DCNSR-24S12

13.5 – 36 VDC

24 VDC

12 VDC

0A

1A

580KHz

2.5mA

12W

95.0%

91.5%

DCNSR-24S15

16.5 – 36 VDC

24 VDC

15 VDC

0A

1A

580KHz

3.5mA

15W

95.5%

92.5%

Output Current

Efficiency

Model Number

Input Voltage

Range

Nominal

Input Voltage

Output

Voltage

Min Load

Max Load

Switching

Frequency

No Load

Current

Output

Power

Min Vin

Max Vin

DCNSR-12S1.5

4.6 – 32 VDC

12 VDC

-1.5 VDC

0A

-0.6A

300KHz

1mA

0.9W

69.5%

64.5%

DCNSR-12S1.8

4.6 – 32 VDC

12 VDC

-1.8 VDC

0A

-0.6A

300KHz

1mA

1.1W

72.0%

67.5%

DCNSR-12S2.5

4.6 – 32 VDC

12 VDC

-2.5 VDC

0A

-0.6A

300KHz

1mA

1.5W

72.0%

74.0%

DCNSR-12S3.0

4.6 – 32 VDC

12 VDC

-3.0 VDC

0A

-0.6A

300KHz

2mA

1.8W

73.0%

76.5%

DCNSR-12S3.3

4.6 – 32 VDC

12 VDC

-3.3 VDC

0A

-0.6A

300KHz

2mA

2W

74.0%

77.5%

DCNSR-12S05

4.6 – 31 VDC

12 VDC

-5 VDC

0A

-0.4A

580KHz

3mA

2W

79.5%

78.5%

DCNSR-12S6.5

7 – 29 VDC

12 VDC

-6.5 VDC

0A

-0.3A

580KHz

4mA

1.95W

84.5%

80.0%

DCNSR-12S09

7 – 27 VDC

12 VDC

-9 VDC

0A

-0.3A

580KHz

7mA

2.7W

85.0%

82.0%

DCNSR-24S12

7 – 24 VDC

12 VDC

-12 VDC

0A

-0.3A

580KHz

8mA

3.6W

85.0%

85.5%

DCNSR-24S15

7 – 21 VDC

12 VDC

-15 VDC

0A

-0.2A

580KHz

10mA

3W

85.5%

84.5%