YR20.242

Y-Series

DC 12V

DC 24V

Power losses

typ.

0.6W

0.6W

input: 2x5A, ambient temperature: 25°C

typ.

2.0W

2.0W

input: 2x10A, ambient temperature: 25°C

Standby power losses

typ.

0.11W

0.21W

at no output current

Fig. 4-1 Power losses

Fig. 4-2 Test setup for power loss measurements

Power Losses, typ.

0

02.5

5

15

0.5

1.0

2.0

2.5

3.0

20

12.5

7.5 10

17.5

1.5

3.5W

25A

22.5

Output Current

60°C

25°C

Output

V

A

Power

Supply

24V, 12A +

-

V

A

A

V

=

=

-

(

*

Variable

Load,

0-24A

YR20.242

Input 1

Input 2

Output

Power

Supply

24V, 12A +

-

The redundancy module has two input channels which are completely independent from each other. Each control

circuit, auxiliary voltage source, or other circuitry in the module are designed separately for each input. The dual input

redundancy module can be considered as two single redundancy modules combined together in one housing. The only

common point is the circuit trace that ties the two separate circuits together at the output.

The MTBF figures below are for the entire dual input module. If the MTBF number of only one path is needed, simply

double the value from the table.

Input / output current

conditions

Input: 2x5A

Output: 10A

Input: 2x10A

Output: 20A

at 24V and 40°C

at 24V and 25°C

10 050 000h

7 895 000h

at 24V and 40°C

16 777 000h

13 403 000h

at 24V and 25°C

2 030 000h

1 890 000h

Ground Fixed GF40 (24V and 40°C)

2 801 000h

2 588 000h

Ground Fixed GF25 (24V and 25°C)

441 000h

404 000h

Ground Benign GB40 (24V and 40°C)

604 000h

548 000h

Ground Benign GB25 (24V and 25°C)

*)

The Lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime

expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours and is calculated according to the

capacitor’s manufacturer specification. The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years

(131 400h). Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices.

**) MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of a

device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.

The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of e.g. 1 000 000h means that

statistically one unit will fail every 100 hours if 10 000 units are installed in the field. However, it can not be determined if the failed unit

has been running for 50 000h or only for 100h.

Jul. 2017 / Rev. 1.3 DS-YR20.242-EN

All parameters are typical values specified at 24V, 20A output current, 25°C ambient and

after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0

Germany

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