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| RDC40 Datasheet, PDF (1/4 Pages) ALPS ELECTRIC CO.,LTD. – Rotary Type | |||
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RDC40 Series
DC-DC Power Supplies
40 Watts
⢠72 & 110 VDC Input for Railway Applications
⢠Single and Dual Outputs
⢠1500 VAC Basic Isolation
⢠High Power Density
⢠High Efficiency Up to 90%
⢠Remote On/Off
⢠3 Year Warranty
The RDC40 series of 40W DC-DC converters are designed for railway applications and comply with
EN50121-3-2, the EMC standard for rolling stock apparatus. There are two input voltage ranges.
The 72 VDC nominal models accept an input from 36 to 140 VDC and the 110 V nominal versions
have a 55 to 176 VDC input. A trim pin allows a +/-10% adjustment for single output models.
Using convection cooling the converters have a wide operating temperature range of -40°C to
+85°C and a maximum case temperature of 105°C.
Dimensions:
RDC40:
2.00 x 1.60 x 0.4â (50.8 x 40.6 x 10.16 mm)
Models & Ratings
Input Voltage
36-140 VDC
55-176 VDC
Output Voltage
3.3 V
5.0 V
12.0 V
15.0 V
±12.0 V
±15.0 V
3.3 V
5.0 V
12.0 V
15.0 V
±12.0 V
±15.0 V
Output Current
10.00 A
8.00 A
3.35 A
2.65 A
±1.65 A
±1.35 A
10.00 A
8.00 A
3.35 A
2.65 A
±1.65 A
±1.35 A
Notes
1. Input current specified at nominal 72 V or 110 V input.
Input Current(1)
No Load
Full Load
30 mA
526.82 mA
30 mA
617.28 mA
25 mA
641.76 mA
25 mA
627.37 mA
30 mA
632.18 mA
30 mA
639.20 mA
20 mA
344.83 mA
25 mA
408.58 mA
25 mA
420.06 mA
25 mA
410.64 mA
20 mA
413.79 mA
20 mA
420.78 mA
Maximum
Capacitive Load
25000 µF
2000 µF
2500 µF
2500 µF
±1600 µF
±1600 µF
25000 µF
2000 µF
2500 µF
2500 µF
±1600 µF
±1600 µF
Efficiency
87.0%
90.0%
87.0%
88.0%
87.0%
88.0%
87.0%
89.0%
87.0%
88.0%
87.0%
87.5%
Model Number(2)
RDC4072S3V3
RDC4072S05
RDC4072S12
RDC4072S15
RDC4072D12
RDC4072D15
RDC40110S3V3
RDC40110S05
RDC40110S12
RDC40110S15
RDC40110D12
RDC40110D15
2. Add suffix â-HKâ for optional heatsink.
Input
Characteristic
Input Voltage - Operating
Input Current
Input Reflected Ripple
Input Filter
Undervoltage Lockout
Input Surge
Minimum
36
55
OFF: 30.5
OFF: 48.5
Typical
20
Maximum
140
176
ON: 33.5 V
ON: 52.5 V
150
185
Units
VDC
mA
V
VDC
Notes & Conditions
72 V nominal
110 V nominal
See models and ratings table
Through 12 µH inductor and 33 µF capacitor
Pi network
72 V models
110 V models
72 V models (for 100 ms)
110 V models (for 100 ms)
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