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www.ConTech-us.com Email: sales@ConTech-us.com Ph: 925-609-1193 / Toll free 877-302-4411 2401 Stanwell Drive, Concord Ca. 94520
1/21/15
Model Number Voltage Current
Overvoltage
Protection
Reected
Ripple
Current
Efciency
Capacitive
Load
Input Output Input Output
Nom.
(VDC)
Range
(VDC) (VDC)
@ No Load
(mA)
@ Max
Load
(mA)
Max (mA) (VDC) mA (Typ)
@ Max
Load
(%, Typ)
Max
(Dual each
output)
RQS75J72S5 72
43 - 101 5 50 1170 15000 6.2 35 89 25500µF
RQS75J72S12 72 43 - 101 12 45 1132 6250 15 35 92 4400µF
RQS75J72S15 72 43 - 101 15 45 1132 5000 18 35 92 2800µF
RQS75J72S24 72
43 - 101 24 55 1145 3125 30 35 91 1100µF
RQS75J110S5 110 66 - 160 5 40 766 15000 6.2 35 89 25500µF
RQS75J110S12 110 66 - 160 12 35 749 6250 15 35 91 4400µF
RQS75J110S15 110 66 - 160 15 35 749 5000 18 35 91 2800µF
RQS75J110S24 110 66 - 160 24 50 758 3125 30 35 90 1100µF
Pin Connections
Pin Function
1 + Vin
2 Remote On/Off
3 - Vin
4 -Vout
5 -Sense*
6 Trim
7 +Sense*
8 +Vout
Tolerance: Inches Millimeters
X.XX ±0.01 X.X ±0.25
X.XXX ±0.005
X.XX ±0.13
Pin ±0.002 ±0.05
75 Watt RQS
Single Series
Dimensions are inches (mm) unless noted
* If remote sense is not used the +Sense
should be connected to +output and -Sense
should be connected to -output. Maximum
output deviation is 10% inclusive of trim.
Black Anodized Aluminum
Weight: 13 grams
To order optional Heatsink - add -HS to part number when ordering
Optional Heatsink (-HS)
To order with heatsink add -HS to model number
• Designed specically for Railway Applications
• Input voltages of 72 (43-101)VDC or
110 (66-160)VDC
• Efciency up to 92%
• 3000VACrms Isolation
• MTBF > 143,800 Hours
• Overload Protection
• Over Temperature Protection
• Under Voltage Shutdown
• Remote On/Off
• Optional Heatsink
• RoHS Compliant
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www.ConTech-us.com Email: sales@ConTech-us.com Ph: 925-609-1193 / Toll free 877-302-4411 2401 Stanwell Drive, Concord Ca. 94520
1/21/15
Input Parameters Min Typ Max Units
Input Surge Voltage
(100ms max.) 72 Vin
110 Vin
-0.7
-0.7
165
250
VDC
Startup Threshold
Voltage 72 Vin
110 Vin
43
66
VDC
Under Voltage
Shutdown 72 Vin
110 Vin
40
63
VDC
Start-up Time 0.35 S
Switching Frequency 320 kHz
Input Filter Internal Pi Network
Conducted EMI
Meets EN 55022, EN55011,
FCC part 15, Class A
Output Parameters
Min Typ Max Units
Output Voltage Accuracy
at Full Load and Nom Vin
±1.0 %
Load Regulation
Min. Load to Full Load
±0.3
%
Line Regulation
Vin=Min. to Max.
±0.2 %
Ripple & Noise (20MHz)
24 V Models
All other Models
150
100
mV P-P
Transient Recovery Time
25% Load Step Change
250 µs
Transient Response Deviation
±3 ±5 %
Temperature Coefcient
±0.02 % / ºC
Over Current Protection Current limitation at 150% typ of Iout
max., Hiccup
Short Circuit Protection
Hiccup mode 0.3Hz typ.
General Specications
Min Typ Max Units
Isolation Voltage,
60 seconds (reinforced
insulation)
3000 VACrms
Insolation Voltage Input/Output
to case
1500 VDC
Isolation Resistance
500VDC
1000 Mohms
Isolation Capacitance,
100kHz, 1V
3000 pF
Temperature
Min
Max
w/o
heatsink
Max
with
Heatsink
Units
Operating Temperature Natural Convection, Vin nom, Load 100% Inom.
Power derating see derating curves.
XX.72S12, XX.72S15,
-40 +56 +61 ºC
XX.72S24, XX.110S12,
XX.110S15
-40 +49 +55 ºC
XX.S110S24
-40 +43 +48 ºC
XX.S72S5, XX.110S5
-40 +36 +42 ºC
Min Typ Max Units
Baseplate Temperature Range
-40 +105 ºC
Over Temperature Protection
(Baseplate)
+110 ºC
See Model Selection Table for Model Specic Parameters
75 Watt RQS
Storage Temperature
-50 +125 ºC
Humidity (Operating)
5 95 %
MTBF MIL-HDBK-217F
@25ºC, Ground Benign
143.8 k Hours
Cooling
Free-Air Convection
Case Size 2.28 x 1.45 x 0.50 inches
57.9 x 36.8 x 12.7 mm
Case Material Non-Conductive Black Plastic
(UL94V-0)
and Aluminum Base Plate
Weight (Converter only)
61g
Remote On/Off Control
Min Typ Max Units
DC/DC On
3.5V - 12V or Open Circuit
DC/DC Off
0V - 1.2V or Short Circuit
Control Input Current (on)
Vctrl = 5.0V
0.5 mA
Control Input Current (off)
Vctrl = 0 V
-0.5 mA
Control Common
Referenced to Negative Input
Standby Input Current
Nominal Vin
2.5 mA
Output Voltage Trim
Min Typ Max Units
Trim Up / Down Range
% of nominal output voltage
% of nominal output voltage
±10%
Recommended Filter: for EN55011 & 55022,
Class A: Fcc part 15, level A Compliance
L1 C1 C3, C4, C5 & C6
450µH/ 450µH Chemi-Con KXG Series
68µF/200V
2200pF
3KV