DC-DC Converter
RDF25 Series
25 Watts
• Regulated Single Output
xxx Series
• 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%
Dimensions:
RDF25:
• Operating Temperature -40 °C to +100 °C
• Full Power to +55 °C
2.0 x 1.0 x 0.45” (50.8 x 25.4 x 11.5 mm)
• 3 Year Warranty
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.
Models & Ratings
Input current(1)
Maximum
capacitive load
6800 µF
Input voltage
Output voltage
Output current
Efficiency
Model number
No load
Full load
5.0 V
12.0 V
15.0 V
24.0 V
5000 mA
2080 mA
1670 mA
1040 mA
413.36 mA
412.70 mA
409.31 mA
407.84 mA
85%
84%
85%
85%
RDF2572S05
RDF2572S12
RDF2572S15
RDF2572S24
1000 µF
16-160 VDC
10 mA
820 µF
470 µF
Notes
1. Input current measured at nominal input voltage.
2. For heatsink add suffix ‘-HK’, e.g. RDF2572S15-HK
Mechanical Details
Optional
Heatsink (-HK)
0.40
0.40
0.10
(2.54)
0.10
(10.16) (10.16)
0.69
(2.54)
(17.6)
0.45
1.00
(11.5)
(25.4)
Pin Connections
0.10
(2.54)
0.10
(2.54)
0.02
(0.5)
Pin
1
Function
+Vin
2
3
4
5
-Vin
DIA
0.04
(1.0)
2.00
(50.8)
2.00
(50.8)
1.73
(43.9)
Top View
Bottom View
Control
+Vout
-Vout
Trim
DIA
0.04
(1.0)
0.17
(4.36)
6
0.32
(8.00)
Notes
1. All dimensions are in inches (mm)
1.00
(25.4)
0.20
(5.0)
0.30
(7.62)
0.30
(7.62)
0.24
(6.0)
Heatsink
Thermal Pad
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