Features
Regulated
Converter
Description
• Reinforced insulation for 250VAC working voltage
• Clearance and creepage distance: 8mm
• 5kVAC I/P to O/P 2MOPP isolation
• 2µA patient leakage current
• Industry standard pinout
• 2:1 and 4:1 wide input range
DC/DC Converter
REM3
3 Watt
2:1 & 4:1
DIP24
Single and Dual
Output
The REM3 series of medical grade regulated DC/DC converters features reinforced 5kVAC/1 minute
isolation with low 2µA leakage and are 60601-1 3rd Ed. certified for 250VAC continuous working. The
compact DIP24 package offers tightly regulated single and dual outputs, even under no-load condi-
tions. The outputs are short circuit and overload protected. The converters are available in two different
pinning options and optionally with an external control pin for standby consumption as low as 12.5mW.
The converters are fully certified to CB, IEC/EN and ANSI/AAMI standards and carry the UL mark.
Selection Guide
Part
Number
REM3-xx3.3S/
(3,4)
REM3-xx05S/
(3,4)
REM3-xx12S/
(3,4)
REM3-xx15S/
(3,4)
REM3-xx24S/
(3,4)
REM3-xx05D/
(3,4)
REM3-xx12D/
(3,4)
REM3-xx15D/
(3,4)
nom. Input
Voltage
(1)
[VDC]
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
5 / 12 / 24 / 48
24 / 48
24 / 48
24 / 48
24 / 48
24 / 48
24 / 48
24 / 48
24 / 48
Output
Voltage
[VDC]
3.3
5
12
15
24
±5
±12
±15
3.3
5
12
15
24
±5
±12
±15
Output
Current
[mA]
1000
600
250
200
125
±300
±125
±100
1000
600
250
200
125
±300
±125
±100
Efficiency
typ.
[%]
81 /82 /82 / 81
Max. Capacitive
Load
[µF]
1050
780
130
100
39
±430
±75
±56
1050
750
130
100
39
±430
±75
±56
84.5 / 84.5 / 84.5 / 84
85.5 / 87 / 87 / 87
87.5 / 87 / 87 / 86.5
85.5 / 87 / 87 / 86.5
83 / 83.5 / 83 / 83
86 / 87.5 / 86 / 86
86 / 86.5 / 86 / 86
82 /81
84.5 / 84
87 / 87
87 / 86.5
87 / 86.5
83 / 83
87 / 86
86 / 86
REM3-xx3.3SW/
(3,4)
REM3-xx05SW/
(3,4)
REM3-xx12SW/
(3,4)
REM3-xx15SW/
(3,4)
REM3-xx24SW/
(3,4)
REM3-xx05DW/
(3,4)
REM3-xx12DW/
REM3-xx15DW/
(3,4)
(3,4)
E314885
2MOPP
250VAC
IEC/EN60601-1 certified
CSA/CAN C22.2 60601-01 certified
ANSI/AAMI ES60601-1 certified
EN55011 certified
Model Numbering
REM 3- __ __ __ __ / __ __
Output Power
Input Voltage
(1)
Output Voltage
Single
or
Dual
Notes:
Note1: for 4:1 Input Voltage Type add “W”, see Note 2.
2:1
nom. Vin
4:1 “W”
nom. Vin
xx= 4.5-9 Vin = “05”
xx= 9-36Vin =
“24”
xx= 9-18Vin
= “12”
xx= 18-75Vin =
“48”
xx= 18-36Vin = “24”
xx= 36-75Vin = “48”
Note2: Blank for Standard 2:1 Input Voltage Range; „W“ suffix for 4:1 Input Voltage Range
Note3: „A“ suffix for A pinning; „C“ suffix for C pinning, for more details refer to Package Style and Pinning
Note4: „CTRL“ suffix for control pin option, for A pinning only, for C pinning not available
Examples:
REM3-0512D/A
REM3-1215S/C
REM3-4815SW/A/CTRL
REM3-243.3SW/C
=
=
=
=
2:1 Input,
2:1 Input,
4:1 Input,
4:1 Input,
4.5-9Vin,
9-18Vin,
36-75Vin,
9-36Vin,
±12Vout,
15Vout,
15Vout,
3.3Vout,
pinout „A“,
pinout „C“,
pinout „A“
pinout „C“,
without control pin
without control pin
with control pin
without control pin
CTRL Option
(4)
Pinning
(3)
Input Type
(2)
www.recom-power.com
REV.: 10/2018
MED-1
REM3
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nominal input voltage, full load and after warm-up)
BASIC CHARACTERISTICS
Parameter
2:1
Series
Condition
5Vin nom.
12Vin nom.
24Vin nom.
48Vin nom.
24Vin nom.
48Vin nom.
5Vin nom.
12Vin nom.
24Vin nom.
48Vin nom.
24Vin nom.
48Vin nom.
DC-DC ON
DC-DC OFF
-0.5mA
2.5mA
135kHz
10µF/25V X7R MLCC for 3.3, 5Vout
10µF/25V X7R MLCC for 12, 15Vout
4.7µF/50V X7R MLCC for 24Vout
150kHz
30mVp-p
40mVp-p
50mVp-p
165kHz
4VDC
8VDC
16VDC
33VDC
8VDC
16VDC
30ms
Open or 0-1.2VDC
2.2-12VDC
1mA
Min.
Typ.
Max.
16VDC
25VDC
50VDC
100VDC
50VDC
100VDC
4.5VDC
9VDC
18VDC
36VDC
9VDC
18VDC
Absolute Maximum Input Voltage
( 3sec max.)
4:1
2:1
Under Voltage Lockout
4:1
Start-up Time
Remote ON/OFF
(referenced to -Vin Pin)
Current of CTRL Pin
Remote OFF Input Current
Internal Operating Frequency
Output Ripple and Noise
(20MHz BW limited)
constant resistive load, Power up or Remote ON/OFF
Efficiency vs. Load
100
90
80
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
90 100
Efficiency [%]
Load [%]
REGULATIONS
Parameter
Output Accuracy
Line Regulation
Load Regulation
Cross Regulation
Transient Response
www.recom-power.com
Condition
low line to high line
no load to full load
asymmetrical load 25% / Full Load
25% load step change
REV.: 10/2018
Type
Single
Dual
Single
Dual
only Dual Output
Value
±1.0%
±0.2%
±0.5%
0.2%
1.0%
±5.0%
250µs
MED-2
REM3
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nominal input voltage, full load and after warm-up)
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
Over Load Protection (OLP)
% of Iout rated
3.3Vout
5Vout
12Vout
15Vout
24Vout
Series
Condition
Type
Value
continuous, auto-recovery
Hiccup mode, 150% typ.
3.7VDC min. / 5VDC max.
5.6VDC min. / 7VDC max.
13.5VDC min. / 16VDC max.
18.3VDC min. / 22VDC max.
29.1VDC min. / 34.5VDC max.
5.6VDC min. / 7VDC max.
13.5VDC min. / 18.2VDC max.
17VDC min. / 22VDC max.
5kVAC / 1 minute
250VAC / continuous
12pF typ. / 17pF max.
2µA
reinforced
2MOPP
built-in power supply
I/P to O/P
I/P to O/P
“C” Pinning
“A” Pinning
≥8mm
>19.72mm
>14.64mm
Single
Output Over Voltage Protection (OVP)
5Vout
Dual 12Vout
15Vout
Isolation Voltage
Isolation Capacitance
Leakage Current
Insulation Grade
Means of Protection
Medical Device Classification
Internal Clearance and Creepage
External Clearance and Creepage
Notes:
Note5:
240VAC, 60Hz
I/P to O/P
working voltage
This Power module is not internally fused. A input line fuse must be always used.
Recomended Fuse:
2:1 Input Voltage
5V
12V
24V
48V
Fuse (slow blow)
T1.25A
T0.63A
T0.315A
T0.315A
4:1 Input Voltage
24V
48V
Fuse (slow blow)
T0.63A
T0.315A
ENVIRONMENTAL
Parameter
Maximum Case Temperature Range
Maximum Ambient Temperature Range
Temperature Coefficient
Thermal Impedance
Operating Altitude
Operating Humidity
Pollution Degree
MTBF
Thermal Shock
Vibration
continued on next page
www.recom-power.com
REV.: 10/2018
MED-3
Condition
Value
-40°C to +105°C
see thermal calculation below
0.02%/K typ.
natural convection 0.1m/s
non-condensing
according to MIL-HDBK-217F, G.B.
+25°C
18K/W
5000m
5% - 95% RH max.
PD2
6444 x 10
3
hours
according to MIL-STD-810F standard
according to MIL-STD-810F standard
REM3
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nominal input voltage, full load and after warm-up)
Thermal Calculation:
h
set
=
h
full load
x f
h
P
out set
T
case
T
over
T
amb
P
out nom.
P
out set
P
diss
R
th
= baseplate temperature
= temperature losses
= ambient temperature
= nom. output power
= output power set
= internal losses
= thermal impedance
= efficiency set
= efficiency @ full load
= efficiency factor
[°C]
[°C]
[°C]
[W]
[W]
[W]
[K/W]
[%]
[%]
[]
Series
P
diss
=
h
set
- P
out set
T
over
=
R
th
x P
diss
T
amb
=
T
case
- T
over
h
set
h
full load
f
h
Efficiency Crosstable (%) @ full Load
Input Voltage
3.3S
05S
12S
15S
24S
05D
12D
15D
5
81
84.5
85.5
87.5
85.5
83
86
86
12
82
84.5
87
87
87
83.5
87.5
86.5
24
82
84.5
87
87
87
83
86
86
48
81
84
87
86.5
86.5
83
86
86
24W
82
84.5
87
87
87
83
87
86
48W
81
84
87
86.5
86.5
83
86
86
1.2
1.0
0.8
0.6
0.4
0.2
0.0
Efficiency Factor vs. Load
Output Voltage
Efficiency Factor [ ]
0
10
20
30
40
50
60
70
80
90 100
Take the
REM3-1212D
with 12V Input Voltage, 50% load.
What is the maximum ambient operating temperature?
T
case
= 105°C
= 3W
= 3 x 0.5 = 1.5W
= 18K/W
= 87.5% (Crosstable)
= 0.98 (Graph)
Practical Example:
Load [%]
P
out nom.
P
out set
R
th
h
full load
f
h
h
set
=
87.5 x 0.98
85.75%
P
diss
=
1.5
0.856
- 1.5 =
0.25W
T
over
=
18 x 0.25 =
+4.5°C
T
amb
=
105 - 4.5 =
+100.5°C
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Medical Electric Equipment, General Requirements for Safety and Essential Perfor-
mance
Medical Electric Equipment, General Requirements for Safety and Essential Perfor-
mance (CB Scheme)
EAC
RoHS2+
continued on next page
www.recom-power.com
REV.: 10/2018
MED-4
Report / File Number
E314885-A6-CB-1
E314885-A6-CB-1
RU-AT.49.09571
Standard
CAN/CSA-C22.2 No. 60601-1:08
ANSI/AAMI ES60601-1:2005
IEC60601-1:2005 + C2:2007 3rd Edition
EN60601-1:2006
TP TC 004/2011 TP TC 004/2011
RoHS-2011/65/EU + AM-2015/863
REM3
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nominal input voltage, full load and after warm-up)
Certificate Type (Others)
Medical electrical equipment - Part 1-2: General requirements for basic safety and essential
performance - Collateral standard: Electromagnetic compatibility - Requirements and tests
Industrial, scientific and medical equipment - Radio frequency disturbance character-
istics - Limits and methods of measurement
(7)
ESD Electrostatic discharge immunity test
Radiated, radio-frequency, electromagnetic field immunity test
Fast Transient and Burst Immunity
(6)
Surge Immunity
(6)
Series
Conditions
Standard / Criterion
EN60601-1-2:2015
EN55011:2009 + A1:2010 Class A & B
Air ±15kV; Contact ±8kV
10V/m (80-2500MHz)
27V/m (385MHz)
28V/m (450MHz)
DC Port: ±2kV
DC Port: ±2kV
6Vr.m.s
30A/m
EN61000-4-2:2008
EN61000-4-3:2006 + A2:2010
EN61000-4-4:2012
EN61000-4-5:2005
EN61000-4-6:2013
EN61000-4-8:2009
Immunity to conducted disturbances, induced by radio-frequency fields
Power Frequency Magnetic Field
Notes:
Note6:
Note7:
An external input filter capacitor is required if the model has to meet EN61000-4-4 or/and EN61000-4-5
Recommended components:
5Vin
aluminium capacitor (Nippon Chemi-con KY series, 1000µF/25V) and a
reverse diode (Vishay V10P45) to connect in parallel
12Vin, 24Vin
aluminium capacitor (Nippon Chemi-con KY series, 470µF/50V)
48Vin
aluminium capacitor (Nippon Chemi-con KY series, 330µF/100V)
The whole REM3 series can meet EMI Class A with no external filter. And Class B only with external components
EMC Filter Suggestion for Class B
(8)
+V
in
C1
-V
in
MODEL
REM3-05xxS_D
REM3-12xxS_D
REM3-24xxS_D(/W)
REM3-48xxS_D(/W)
Notes:
Note8:
L1
+V
in
+V
out
+V
out
C2
-V
in
-V
out
-V
out
L1
(8)
137µH CMC
277µH CMC
175µH CMC
C1
(8)
22µF/16V MLCC
4.7µF/50V MLCC
2.2µF/100V MLCC
C2
(8)
22µF/16V MLCC
4.7µF/50V MLCC
1µF/100V MLCC
The component values can be adapted according to customer´s application
DIMENSION and PHYSICAL CHARACTERISTICS
Parameter
Material
Dimension (LxWxH)
Weight
Type
case
PCB
potting
Value
non-conductive black plastic (UL94-V2)
FR4 (UL94-V1)
silicone (UL94-V0)
31.80 x 20.30 x 10.40mm
14g
continued on next page
www.recom-power.com
REV.: 10/2018
MED-5
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