Temperature Derating Curves for UWR 7-15W A-Series

Ambient Temperature (

°C)

D24A and D48A Temperature Derating for 1.5V Output Models

10

9

8

7

6

5

4

3

2

1

0

–40

0

40

4550

5560

6570

75

80

859095

100

Ambient Temperature (

°C)

D24A and D48A Temperature Derating for 1.8V Output Models

12

11

10

9

8

7

6

5

4

3

2

1

0

–40

0

40

4550

5560

6570

75

80

859095

100

Ambient Temperature (

°C)

15.0

13.5

12.0

10.5

9.0

7.5

6.0

4.5

3

1.5

0

–40

0

40

4550

5560

6570

75

80

859095

100

D12A (10-18V) Temperature Derating

Ambient Temperature (

°C)

D24A and D48A Temperature Derating for 3.3V Output Models

14

12

10

8

6

4

2

0

–40

0

40

4550

5560

6570

75

80

859095

100

Ambient Temperature (

°C)

15.0

13.5

12.0

10.5

9.0

7.5

6.0

4.5

3

1.5

0

–40

0

40

4550

5560

6570

75

80

859095

100

D24A and D48A Temperature Derating for 2.5/5/12 /15V Output Models

The thermal performance of A-Series UWR 7-15 Watt DC/DC Converters is

depicted in the derating curves shown below. All devices, when operated at full

load, in still ambient air, over their full specified input voltage range, can safely

input range), can operate at higher ambient temperatures if the input range is

narrowed. For example, model UWR-5/3000-D48A can operate safely to +70°C

if the input range is kept between 36 and 48 Volts.

www.murata-ps.com/support

UWR Models

Single Output, High-Density,

6 Amp/15 Watt DC/DC Converters

MDC_UWR_7-15.G04 Page 6 of 12