Features
Regulated
Converter
Description
• 4:1 wide input range
• 3kVAC reinforced insulation for 110Vin
2.25kVDC basic insulation for 24Vin & 48Vin
• Efficiency up to 90%
• No minimum load required
• EN50155 certified
• IEC/EN60950-1 certified
DC/DC Converter
RP120Q-RW
120 Watt
Quarter
Brick
Single Output
The quarter-brick RP120Q series DC/DC converters are designed for railway rolling stock and high voltage battery
applications. Each series has three 4:1 input voltage range options to cover all input voltages from 9VDC up to
160VDC with isolated and regulated 5V to 48VDC outputs. The converters have high efficiencies and metal base-
plates to permit a wide operating temperature range from -40°C to +85°C (when mounted on a suitable heatsink).
The case is fitted with threaded inserts to allow secure mounting to the PCB or bulkhead for use in high shock and
vibration environments. The converters are EN50155 and IEC/EN60950 certified. The RP120Q-RW series have a
three year warranty.
Selection Guide
Input
Output Output
Voltage Range Voltage Current
[VDC]
[VDC]
[mA]
RP120Q-2405SRW
9-36
5
24000
RP120Q-2412SRW
9-36
12
10000
RP120Q-2415SRW
9-36
15
8000
RP120Q-2424SRW
9-36
24
5000
RP120Q-2448SRW
9-36
48
2500
RP120Q-4805SRW 16.5-75
5
24000
RP120Q-4812SRW 16.5-75
12
10000
RP120Q-4815SRW 16.5-75
15
8000
RP120Q-4824SRW 16.5-75
24
5000
RP120Q-4848SRW 16.5-75
48
2500
RP120Q-11005SRW 40-160
5
24000
RP120Q-11012SRW 40-160
12
11000
RP120Q-11015SRW 40-160
15
8600
RP120Q-11024SRW 40-160
24
5500
RP120Q-11048SRW 40-160
48
2700
Notes:
Note1:
Part Number
Input
Current
[mA]
5618
5682
5618
5682
5682
2809
2809
2777
2777
2777
1225
1363
1317
1348
1323
Output
Power
[W]
120
120
120
120
120
120
120
120
120
120
120
132
130
132
130
Efficiency
(1)
Max. Capacitive
typ.
Load
[%]
[µF]
89
48000
88
8300
89
5300
88
2100
88
520
89
48000
89
8300
90
5300
90
2100
90
520
89
48000
88
9170
89
5730
89
2290
89
560
EN50155 certified
IEC/EN60950-1 certified
Efficiency is tested by nominal Vin, full load and at 25°C
Model Numbering
RP120Q-__ __SRW/_ _
Input Voltage
Output Voltage
Single
Ordering Examples
RP120Q-2405SRW/N = 24V Input, 5V Output, Single, Neg. CTRL function
RP120Q-11012SRW/P = 110V Input, 12V Output, Single, Pos. CTRL function
RP120Q-2405SRW/N-HC = 24V Input, 5V Output, Single, Neg. CTRL function, with premounted Heat-sink
Notes:
Note2: standard part is with suffix “P” for positive logic (1=ON, 0=OFF)
or add suffix “N” instead for negative logic (0=ON, 1=OFF)
Note3: add suffix “-HC” for premounted Heat-sink
(compatible with all other suffixes)
Package
(3)
CTRL Logic
(2)
https://www.recom-power.com/pdf/
Powerline_DC-DC/RSPxxx-168.pdf
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REV.: 4/2018
PB-1
RP120Q-RW
DC/DC Converter
Specifications
(measured @Ta = 25°C, resistive load, nominal Vin and rated Iout unless otherwise noted)
BASIC CHARACTERISTICS
Parameter
Internal Input Filter
Input Voltage Range
nom Vin = 24V
nom Vin = 48V
nom Vin = 110V
Vin = 24V, 1s max.
Vin = 48V, 1s max.
Vin = 110V, 1s max.
Vin = 24V
Vin = 48V
Vin = 110V
Power up
ON/OFF Control
9VDC
16.5VDC
40VDC
24VDC
48VDC
110VDC
Series
Condition
Min.
Typ.
Max.
Pi-Type
36VDC
75VDC
160VDC
50VDC
100VDC
185VDC
Input Surge Voltage
Quiescent Current
Start-up time
Internal Operating Frequency
Minimum Load
25ma
15mA
8mA
75ms
75ms
270kHz
0%
300kHz
100ms
100ms
330kHz
Ripple and Noise
Measured by 20MHz BW
with a 22µF/25V X7R MLCC
with a 22µF/25V X7R MLCC
with a 4.7µF/50V X7R MLCC
with a 2.2µF/100V X7R MLCC
Vin = 24V
5 Vout
12, 15Vout
24Vout
48Vout
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
DC-DC ON
DC-DC OFF
-0.5mA
7.3VDC
15.5VDC
33VDC
75mVp-p
100mVp-p
200mVp-p
300mVp-p
9VDC
8.1VDC
18VDC
16.3VDC
43VDC
36VDC
Open or 3.0V < Vr < 12V
Short or 0V < Vr < 1.2V
Short or 0V < Vr < 1.2V
Open or 3.0V < Vr < 12V
1mA
3mA
-20%
+10%
10%
Under Voltage Lockout (UVLO)
Vin = 48V
Vin = 110V
Positive Logic
ON/OFF Control
Negative Logic
Input Current of CTRL pin
Standby Current
Output Trim
Remote Sense
% of set Vout
RP120Q-2405SRW
Efficiency vs. Output Current
100
90
80
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
9Vin
24Vin
36Vin
90
100
100
90
80
Efficiency vs. Input Voltage
Efficiency [%]
Efficiency [%]
70
60
50
40
30
20
10
9
12
15
18
21
24
27
30
100% Load
50% Load
25% Load
33
36
Output Current [%]
continued on next page
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REV.: 4/2018
Input Voltage [V]
PB-2
RP120Q-RW
DC/DC Converter
Specifications
(measured @Ta = 25°C, resistive load, nominal Vin and rated Iout unless otherwise noted)
RP120Q-2405SRW
Power Dissipation vs. Output Current
18
15
12
9
6
3
0
9Vin
24Vin
36Vin
10
20
30
40
50
60
70
80
90
100
Series
Typical Output Ripple and Noise/full load
Power Dissipation [W]
Output Current [%]
ON/OFF Control Start up Rise Characteristic
Power up Start-up Rise Characteristic
RP120Q-4805SRW
Efficiency vs. Output Current
100
90
80
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
16.5Vin
24Vin
48Vin
75Vin
90
100
Efficiency vs. Input Voltage
100
90
80
Efficiency [%]
Efficiency [%]
70
60
50
40
30
20
10
16.5
24
30
36
42
48
54
60
100% Load
50% Load
25% Load
66
72
75
Output Current [%]
continued on next page
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REV.: 4/2018
Input Voltage [V]
PB-3
RP120Q-RW
DC/DC Converter
Specifications
(measured @Ta = 25°C, resistive load, nominal Vin and rated Iout unless otherwise noted)
RP120Q-4805SRW
Power Dissipation vs. Output Current
24
20
Series
Typical Output Ripple and Noise/full load
Power Dissipation [W]
16
12
8
4
0
10
20
30
40
50
60
70
80
16.5Vin
24Vin
48Vin
75Vin
90
100
Output Current [%]
ON/OFF Control Start up Rise Characteristic
Power up Start-up Rise Characteristic
RP120Q-11005SRW
Efficiency vs. Output Current
100
90
80
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
40Vin
75Vin
110Vin
160Vin
90
100
100
90
80
70
60
50
40
30
20
10
0
40
50
60
70
80
90 100 110 120 130 140 150 160
100% Load
50% Load
25% Load
Efficiency vs. Input Voltage
Efficiency [%]
Efficiency [%]
Output Current [%]
continued on next page
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REV.: 4/2018
Input Voltage [V]
PB-4
RP120Q-RW
DC/DC Converter
Specifications
(measured @Ta = 25°C, resistive load, nominal Vin and rated Iout unless otherwise noted)
RP120Q-11005SRW
18
15
12
9
6
3
0
10
40Vin
110Vin
160Vin
20
30
40
50
60
70
80
90
100
Series
Power Dissipation vs. Output Current
Typical Output Ripple and Noise/full load
Power Dissipation [W]
Output Current [%]
ON/OFF Control Start up Rise Characteristic
Power up Start-up Rise Characteristic
OUTPUT TRIM
Output Voltage Trimming
It allows the user to increase or decrease the output voltage of the module. This is accomplished by connecting an external resistor between the Trim pin and
either the +Sense or -Sense pins. With an external resistor between the Trim and +Sense pin, the output voltage increases. With an external resistor between
the Trim and -Sense pin, the output voltage decreases. The external Trim resistor needs to be at least 1/8W of rated. The values for trim resistors shown in trim
tables below are according to standard E96 values; therefore, the specified voltage may slightly vary.
Trim up
TRIM
R
up
+Sense
TRIM
-Sense
Trim down
R
down
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REV.: 4/2018
PB-5
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