1.00

(25.4)

2.00

(50.8)

1.73

(43.9)

0.02

(0.5)

0.45

(11.5)

0.10

(2.54)

0.20

(5.0)

0.17

(4.36)

0.30

(7.62)

0.30

(7.62)

0.32

(8.00)

0.10

(2.54)

0.10

(2.54)

0.69

(17.6)

2.00

(50.8)

1.00

(25.4)

Heatsink

Thermal Pad

0.10

(2.54)

0.40

(10.16)

0.40

(10.16)

0.24

(6.0)

DIA

0.04

(1.0)

DIA

0.04

(1.0)

Top View

Bottom View

Optional

Heatsink (-HK)

RDF25 Series

DC-DC Converter

xxx Series

www.xppower.com

1

Notes

• Regulated Single Output

• Covers all nominal inputs from 24 to 110 VDC for Railway Applications

• Wide 10:1 Input Range

• 3000 VDC Isolation

• High Efficiency

• EN50155 Certified for Railway Applications

• EN50121-3-2 with External Components

• Remote On/Off

• Output Voltage Trim ±10%

• Operating Temperature -40 °C to +100 °C

• Full Power to +55 °C

• 3 Year Warranty

Dimensions:

RDF25:

2.0 x 1.0 x 0.45” (50.8 x 25.4 x 11.5 mm)

25 Watts

Models & Ratings

Mechanical Details

Pin Connections

Pin

Function

1

+Vin

2

-Vin

3

Control

4

+Vout

5

-Vout

6

Trim

Input voltage

Output voltage

Output current

Maximum

capacitive load

Efficiency

Model number

No load

Full load

16-160 VDC

5.0 V

5000 mA

10 mA

413.36 mA

6800 µF

85%

RDF2572S05

12.0 V

2080 mA

412.70 mA

1000 µF

84%

RDF2572S12

15.0 V

1670 mA

409.31 mA

820 µF

85%

RDF2572S15

24.0 V

1040 mA

407.84 mA

470 µF

85%

RDF2572S24

1. Input current measured at nominal input voltage.

2. For heatsink add suffix ‘-HK’, e.g. RDF2572S15-HK

The RDF25 series provides an exceptional 10:1 input voltage of 16-160V DC covering all requirements of the railway standard EN50155. The

product features a robust design tested to railway standards and includes a remote on /off function, output voltage trimming, protection against

short circuit, undervoltage lockout, overtemperature, overload and overvoltage.

1. All dimensions are in inches (mm)

Notes