CTRL Option (4)
Pinning (3)
Input Type (2)
Output Power
Input Voltage (1)
Output Voltage
Single or Dual
Model Numbering
REM 3- __ __ __ __ / __ __
Notes:
Note1: for 4:1 Input Voltage Type add “W”, see Note 2.
2:1 4:1 “W”
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 aviable
Examples:
REM3-0512D/A = 2:1 Input, 4.5-9Vin, ±12Vout, pinout „A“, without control pin
REM3-1215S/C = 2:1 Input, 9-18Vin, 15Vout, pinout „C“, without control pin
REM3-4815SW/A/CTRL = 4:1 Input, 36-75Vin, 15Vout, pinout „A“ with control pin
REM3-243.3SW/C = 4:1 Input, 9-36Vin, 3.3Vout, pinout „C“, without control pin
MED-1
REV.: 05/2016www.recom-power.com
Refer to Applications Notes
3 Watt
2:1 & 4:1
DIP24
Single and Dual
Output
DC/DC Converter
Features
Regulated
Converters
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 REM3
2MOPP
250VAC
Description
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 conditions.
The outputs are short circuit and overload protected. The converters are available in two different pin-
ning 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 CE and UL marks.
Selection Guide
Part Input Output Output Efficiency Max. Capacitive
Number Voltage Range Voltage Current typ. Load
(VDC) (VDC) (mA) (%) (µF)
REM3-xx3.3S/ (3,4) 4.5-9 / 9-18 / 18-36 / 36-75 3.3 1000 81 /82 /82 / 81 1050
REM3-xx05S/ (3,4) 4.5-9 / 9-18 / 18-36 / 36-75 5 600 84.5 / 84.5 / 84.5 / 84 780
REM3-xx12S/ (3,4) 4.5-9 / 9-18 / 18-36 / 36-75 12 250 85.5 / 87 / 87 / 87 130
REM3-xx15S/ (3,4) 4.5-9 / 9-18 / 18-36 / 36-75 15 200 87.5 / 87 / 87 / 86.5 100
REM3-xx24S/ (3,4) 4.5-9 / 9-18 / 18-36 / 36-75 24 125 85.5 / 87 / 87 / 86.5 39
REM3-xx05D/ (3,4) 4.5-9 / 9-18 / 18-36 / 36-75 ±5 ±300 83 / 83.5 / 83 / 83 ±430
REM3-xx12D/ (3,4) 4.5-9 / 9-18 / 18-36 / 36-75 ±12 ±125 86 / 87.5 / 86 / 86 ±75
REM3-xx15D/ (3,4) 4.5-9 / 9-18 / 18-36 / 36-75 ±15 ±100 86 / 86.5 / 86 / 86 ±56
REM3-xx3.3SW/ (3,4) 9-36 / 18-75 3.3 1000 82 /81 1050
REM3-xx05SW/ (3,4) 9-36 / 18-75 5 600 84.5 / 84 750
REM3-xx12SW/ (3,4) 9-36 / 18-75 12 250 87 / 87 130
REM3-xx15SW/ (3,4) 9-36 / 18-75 15 200 87 / 86.5 100
REM3-xx24SW/ (3,4) 9-36 / 18-75 24 125 87 / 86.5 39
REM3-xx05DW/ (3,4) 9-36 / 18-75 ±5 ±300 83 / 83 ±430
REM3-xx12DW/ (3,4) 9-36 / 18-75 ±12 ±125 87 / 86 ±75
REM3-xx15DW/ (3,4) 9-36 / 18-75 ±15 ±100 86 / 86 ±56
5
Y
E
A
R
w
a
r
r
a
n
t
y
5
E314885
IEC-60601-1 Certified
ES-60601-1 Certifed
EN-55011 Certified
EN-55022 Certified
DC/DC Converter
MED-2 REV.: 05/2016 www.recom-power.com
BASIC CHARACTERISTICS
Parameter Condition Min. Typ. Max.
Absolute Maximum Input Voltage
( 3sec max.)
2:1
4:1
5Vin nom.
12Vin nom.
24Vin nom.
48Vin nom.
24Vin nom.
48Vin nom
16VDC
25VDC
50VDC
100VDC
50VDC
100VDC
Under Voltage Lockout
2:1
4:1
5Vin nom.
12Vin nom.
24Vin nom.
48Vin nom.
24Vin nom.
48Vin nom
4VDC
8VDC
16VDC
33VDC
8VDC
16VDC
4.5VDC
9VDC
18VDC
36VDC
9VDC
18VDC
Start-up Time constant resistive load, Power up or Remote ON/OFF 30ms
Remote ON/OFF
(referenced to -Vin Pin)
DC-DC ON
DC-DC OFF
Open or 0-1.2VDC
2.2-12VDC
Current of CTRL Pin -0.5mA 1mA
Remote OFF Input Current 2.5mA
Operating Frequency Range 135kHz 150kHz 165kHz
Output Ripple and Noise
(20MHz BW limited)
10µF/25V X7R MLCC for 3.3, 5Vout
10µF/25V X7R MLCC for 12, 15Vout
4.7µF/50V X7R MLCC for 24Vout
30mVp-p
40mVp-p
50mVp-p
continued on next page
Graph1: Efficiency Factor vs. Load
Load (%)
Efficiency Factor
100 20 30 40 50 60 70 80 90 100
0.0
0.2
0.4
0.6
0.8
1.2
1.0
Efficiency Crosstable (%) @ full load
Input Voltage
5 12 24 48 24W 48W
Output Voltage
3.3S 81 82 82 81 82 81
05S 84.5 84.5 84.5 84 84.5 84
12S 85.5 87 87 87 87 87
15S 87.5 87 87 86.5 87 86.5
24S 85.5 87 87 86.5 87 86.5
05D 83 83.5 83 83 83 83
12D 86 87.5 86 86 87 86
15D 86 86.5 86 86 86 86
Table1: Efficiency Crosstable
Efficiency
REM3
Series
Specifications (measured at TA= 25°C, nominal input voltage, full load and after warm-up)
DC/DC Converter
choose your model:
REM3-1212D
• Efficiency from Table1 (= 87.5% @ max Load / nom Vin)
• Loading conditions in application (e.g. 50%)
• use Eff factor from Graph1 (= 0.98 @50%)
Calculation:
MED-3
REV.: 05/2016www.recom-power.com
Specifications (measured at TA= 25°C, nominal input voltage, full load and after warm-up)
REM3
Series
PROTECTIONS
Parameter Condition Type Value
Short Circuit Protection (SCP) continuous, auto-recovery
Over Load Protection (OLP) % of Iout rated Hiccup mode, 150% typ.
Output Over Voltage Protection (OVP)
Single 3.3Vout
5Vout
12Vout
15Vout
24Vout
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.
Dual 5Vout
12Vout
15Vout
5.6VDC min. / 7VDC max.
13.5VDC min. / 18.2VDC max.
17VDC min. / 22VDC max.
continued on next page
REGULATIONS
Parameter Condition Type Value
Output Voltage Accuracy ±1%
Line Voltage Regulation LL to HL Single
LL to HL Dual
±0.2%
±0.5%
Load Voltage Regulation no load to full load Single
no load to full load Dual
±0.2%
±1%
Cross Regulation asymmetrical load 25% / Full Load only Dual Output ±5%
Transient Response 25% load step change 250µs
Calculation Example:
Vin = 12V
Iout = 50%
Eff100% = 87.5%
Efffactor50% = 0.98
Rth = 18°C/W
TCASEmax = 105°C TAMBmax = TCASEmax - TOVER = 105 - 4.5 = 100.5°C
TOVER = Rth * PDIS50% = 18 * 0.25 = 4.5°C
PDIS50% = Pin50% - Pout50% = Pout100% * 0.5 - (Pout100% * 0.5) = 1.75 - 1.5 = 0.25W
Eff50%
Eff50% = Eff100% * Efffactor50% = 87.5 * 0.98 = 85.75%
10 20 30 40 50 60 70 80 90 100
Load (%)
Efficiency (%)
50
60
70
80
90
100
DC/DC Converter
MED-4 REV.: 05/2016 www.recom-power.com
ENVIRONMENTAL
Parameter Condition
Value
Relative Humidity 5% to 95% RH
Temperature Coefficient ±0.02% / °C
Thermal Impedance natural convection (20LFM) 18°C / W
max. Case Temperature Range
max. Ambient Temperature Range
-40°C to +105°C
see calculation example
MTBF (+25°C) according to MIL-HDBK-217F, full load 6444 x 103 hours
Specifications (measured at TA= 25°C, nominal input voltage, full load and after warm-up)
REM3
Series
Isolation Voltage I/P to O/P
working voltage
5kVAC / 1 minute
250VAC / continuous
Means of Protection 2MOPP
Leakage Current 240VAC, 60Hz 2µA
Medical Device Classification Type CF applied device (design to meet)
Internal Clearance
Creepage
I/P to O/P
I/P to O/P
8mm
8mm
External Clearance
Creepage
I/P to O/P, Single Output
I/P to O/P, Dual Output
I/P to O/P, Single Output
I/P to O/P, Dual Output
>19.72mm
>14.64mm
>19.72mm
>14.64mm
Isolation Capacitance 12pF typ. / 17pF max.
Insulation Grade Reinforced Insulation
Notes:
Note5: This Power module is not internally fused. A input line fuse must be always used.
Recomended Fuse:
2:1 Input Voltage Fuse (slow blow)
5V T1.25A
12V T0.63A
24V T0.315A
48V T0.315A
4:1 Input Voltage Fuse (slow blow)
24V T0.63A
48V T0.315A
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Report / File Number
Standard
CB Medical Safety E314885-A6 IEC-60601-1
1409015 Medical Report + ISO14971 Risk Assessment
ANSI/AAMI E314885-A6 ES60601-1
CAN/CSA Medical E314885-A6 C22.2 No. 60601-1:08
Certificate Type (Others) Conditions Standard / Criterion
EMI Standard (7) Conducted CISPR 11, EN55011, Class A, B
Radiated CISPR 11, EN55011, Class A, B
Conducted and Radiated FCC18
ESD Air ±8kV; Contact ±6kV
EN61000-4-2, Criteria A
Radiated Immunity 10V/m
EN61000-4-3, Criteria A
Fast Transient (6) ±2kV EN61000-4-4, Criteria A
Surge (6) ±2kV EN61000-4-5, Criteria A
Conducted Immunity 20Vr.m.s EN61000-4-6, Criteria A
continued on next page
DC/DC Converter
Power Frequency Magnetic Field 10A/m EN61000-4-8, Criteria A
Thermal Shock MIL-STD-810F
Vibration MIL-STD-810F
MED-5
REV.: 05/2016www.recom-power.com
Notes:
Note6: 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)
Note7: The whole REM3 series can meet EMI Class A with no external filter. And Class B only with external components.
REM3
Series
Specifications (measured at TA= 25°C, nominal input voltage, full load and after warm-up)
EMC Filter Suggestion for Class B
C1
+VIN
-VIN
C2
L1
DC/DC
Converter
MODEL C1 (8) C2 (8) L1 (8)
REM3-05xxS_D 22µF/16V
MLCC
22µF/16V
MLCC
33mH
WE 744825433
REM3-12xxS_D
REM3-24xxS_D
REM3-24xxS_D/W
4.7µF/50V
MLCC
4.7µF/50V
MLCC
500µH
WE 744223
REM3-48xxS_D
REM3-48xxS_D/W
2.2µF/100V
MLCC
1µF/100V
MLCC
200µH
WE 744272221
DIMENSION and PHYSICAL CHARACTERISTICS
Parameter
Type
Value
Case Material
Potting Material
non-conductive black plastic
silicone (UL94-V0)
Package Dimension (LxWxH) 31.80 x 20.30 x 10.40mm
Package Weight 14g
continued on next page
Notes:
Note8: The component values can be adapted according to customers‘ applictation.
DC/DC Converter
REM3
Series
Specifications (measured at TA= 25°C, nominal input voltage, full load and after warm-up)
MED-6 REV.: 05/2016 www.recom-power.com
3.8
2.54
31.8
20.3
2
2.54
20.32
1 11
24 23 15 13
12
Bottom View
0.6 dia.
10.4
MEDICAL GRADE DC/DC CONVERTER
REM3-Series
15.24
3.8
15.24
2.54
31.8
20.3
2 5.08
20.32
0.6 dia.
1 2
23 22 16 14
11
Bottom View
MEDICAL GRADE DC/DC CONVERTER
REM3-Series
10.4
“C” Pinning “A” Pinning (Standard)
Dimension Drawing (mm)
Pin Connections
Pin # Single Dual
1 +Vin +Vin
11 No Pin Com
12 -Vout No Pin
13 +Vout -Vout
15 No Pin +Vout
23 -Vin -Vin
24 -Vin -Vin
Tolerance: xx.x= ±0.5mm
xx.xx= ±0.25mm
Pin Connections
Pin # Single Dual
1 CTRL* CTRL*
2 -Vin -Vin
11 NC -Vout
14 +Vout +Vout
16 -Vout Com
22 +Vin +Vin
23 +Vin +Vin
* If don´t choose CTRL option, there is
no pin on the corresponding pin number
NC= not connected
Tolerance: xx.x= ±0.5mm
xx.xx= ±0.25mm
The product information and specifications are subject to change without prior notice. RECOM products are not authorized for use in safety-critical applications (such as life support) without RECOM’s explicit written
consent. A safety-critical application is defined as an application where a failure of a RECOM product may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The buyer
shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized use of RECOM products in such safety-critical applications.
PACKAGING INFORMATION
Parameter
Type
Value
Packaging Dimension (LxWxH) Tube 255 x 21.8 x 16.5mm
Packaging Quantity 7pcs
Storage Temperature Range -55°C to +125°C
Tube Dimension Drawing (mm)
21.8±0.75
11±0.75
0.5±0.2
16.5±0.75
11.5±0.75
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
RECOM:
REM3-1212S/C REM3-2415DW/C REM3-4812S/A/CTRL REM3-4812SW/A/CTRL REM3-4812SW/A REM3-
2415SW/C REM3-4815D/A REM3-4824SW/A REM3-4812DW/A/CTRL REM3-2415SW/A/CTRL REM3-4815D/C
REM3-2412SW/A/CTRL REM3-2424SW/C REM3-4815DW/A REM3-1212S/A/CTRL REM3-0512S/A/CTRL REM3-
4805S/A/CTRL REM3-4805S/C REM3-4812D/A/CTRL REM3-0515D/A/CTRL REM3-2415D/C REM3-243.3SW/C
REM3-1205D/C REM3-0512D/C REM3-2415S/C REM3-2415S/A REM3-2412S/A REM3-1215S/A REM3-1224S/A
REM3-0505D/C REM3-4805SW/A/CTRL REM3-2412DW/C REM3-2415DW/A/CTRL REM3-243.3S/C REM3-
1205S/A REM3-1212S/A REM3-2405D/A REM3-2415D/A REM3-2405DW/A REM3-2412DW/A/CTRL REM3-
0505S/A/CTRL REM3-4812D/C REM3-053.3S/C REM3-123.3S/A REM3-1205S/C REM3-2415S/A/CTRL REM3-
0524S/A REM3-4805DW/A/CTRL REM3-483.3S/C REM3-1215S/C REM3-2405D/C REM3-2415D/A/CTRL REM3-
483.3SW/A/CTRL REM3-4805SW/A REM3-0505S/A REM3-0512S/A REM3-2424S/A/CTRL REM3-4812S/A REM3-
1212D/A REM3-1212D/A/CTRL REM3-4805SW/C REM3-2412SW/A REM3-2415DW/A REM3-0515S/A/CTRL
REM3-2424SW/A REM3-123.3S/A/CTRL REM3-4815D/A/CTRL REM3-4805DW/C REM3-2415SW/A REM3-
0524S/C REM3-4812D/A REM3-2412D/A REM3-4805D/A REM3-243.3SW/A REM3-4805S/A REM3-1224S/C
REM3-1205D/A REM3-1215D/C REM3-2405S/C REM3-4812S/C REM3-2405DW/C REM3-2412DW/A REM3-
4812DW/A REM3-4824S/A REM3-2412S/A/CTRL REM3-2412S/C REM3-1215S/A/CTRL REM3-4815DW/C REM3-
4815S/A REM3-053.3S/A REM3-2424S/C REM3-4824S/C REM3-1215D/A REM3-483.3SW/A REM3-
4815DW/A/CTRL REM3-053.3S/A/CTRL REM3-483.3S/A REM3-0515S/A REM3-4815S/A/CTRL REM3-0512D/A