Technical Reference Note
Rev.12.08.17_#1.1
ERM 10W Series
Page 1
ERM 10W Series
10 Watts
DC/DC Converter
Total Power:
10 Watts
Input Voltage:
9 to 36Vdc
18 to 75Vdc
40 to 160Vdc
# of Outputs:
Single, Dual
Special Features
•
•
•
•
•
•
•
•
Industrial Standard 2”x1” Package
Ultra-wide Input Voltage Range
Fully Regulated Output Voltage
I/O Isolation 3000Vac with
Reinforced Insulation
Operating Temp. Range -40
O
C to
+95
O
C
No Minimum Load Requirement
Overload Voltage and Short Circuit
Protection
Designed-in Conducted EMI meets
EN55032/22 Class A & FCC
Level A
Vibration and Shock meets
EN61373
Cooling, Dry & Damp Heat Test
meet IEC/EN60068-2-1,2,30
Fire Protection Test meets
EN45545-2
Railway EMC Standard meets
EN50121-3-2
Product Descriptions
The ERM 10W series is a new range of high performance 10W isolated dc-dc
converter within encapsulated 2"x1" package which specifically design for
railway applications. There are 18 models available for railway input voltage of
either 24 (9~36) Vdc or 48 (18~75) Vdc or 72/110 (40~160) Vdc and tight output
voltage regulation. Further features include over current, over voltage, short
circuit protection, remote ON/OFF, output trim and EMI filter meets EN55032/22
& FCC Part15 Class A as well.
ERM 10W series conform to vibration and thermal shock test meets EN61373,
cooling, dry and damp heat test meets IEC/EN 60068-2-1,2,30 and railway EMC
standard EN50121-3-2 and complies also with Railway Certification EN50155
(IEC60571).
ERM 10W series offer an highly reliable solution for critical applications in
railway systems, battery-powered equipment, measure instrumentation and
many critical applications.
•
•
•
•
Safety
UL/cUL/IEC/EN62368-1 (60950-1)
CE Mark
Railway Certified meets EN50155
(IEC60571)
Technical Reference Note
Rev.12.08.17_#1.1
ERM 10W Series
Page 4
Electrical Specifications
Absolute Maximum Ratings
Stress in excess of those listed in the “Absolute Maximum Ratings” may cause permanent damage to the power supply.
These are stress ratings only and functional operation of the unit is not implied at these or any other conditions above
those given in the operational sections of this TRN. Exposure to any absolute maximum rated condition for extended
periods may adversely affect the power supply’s reliability.
Table 1. Absolute Maximum Ratings:
Parameter
Input Surge Voltage
100 mSec.max
Maximum Output Power
Isolation Voltage
Input to output (60 seconds)
Input / Output to Case (60 seconds)
Isolation Resistance
(500Vdc)
Isolation Capacitance
(100KHz, 1V)
Operating Case Temperature
Storage Temperature
Humidity (non-condensing)
Operating
Non-operating
MTBF
All models
All models
MIL-HDBK-
217F@25
O
C, Ground
Benign
-
-
2845385
-
-
-
95
95
-
%
%
Hours
Model
24V Input Models
48V Input Models
110V Input Models
All models
All models
All models
All models
All models
All models
All models
T
CASE
T
STG
Symbol
V
IN,DC
P
O,max
Min
-0.7
-0.7
-0.7
-
3000
1500
1000
-
-
-50
Typ
-
-
-
-
-
-
-
1500
-
Max
50
100
170
10
-
-
-
-
+105
+125
Unit
Vdc
Vdc
Vdc
W
Vac
Vac
Mohm
pF
O
C
O
C
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