Features
Unregulated
Converters
Description
• Fully RoHS 10/10 conform
• Full power at 100°C ambient temperature
• 1kVDC or 3kVDC isolation option
• Suitable for fully automated assembly
(including vapor phase soldering)
• Optional continuous short circuit protection
DC/DC Converter
R0.25S & R0.25D(A)
The R0.25S and R0.25D converters are of the enclosed open frame type, i.e. they are not potted.
The converters are typically used in general purpose and industrial low ower isolation and voltage
matching applications where an SMD converter is required. The converter series feature an extended
ambient temperature operating range of -40°C to +100°C without derating and optional continuous short
circuit protection. In addition to single, dual and independent outputs, two isolation options and three
different case formats, the converters are also available prepacked as tape and reel for use with
automatic insertion machines.
Selection Guide
Part
Number
R0.25S
(3)
-xx3.3
(4,5)
R0.25S
(3)
-xx05
(4,5)
R0.25S
(3)
-xx09
(4,5)
R0.25S
(3)
-xx12
(4,5)
R0.25S
(3)
-xx15
(4,5)
R0.25S
(3)
-xx24
(4,5)
R0.25D
(3)
-xx3.3
(4,5)
R0.25D -xx05
(3)
(4,5)
0.25 Watt
3
SMD
Single, Dual and
Independent
Outputs
YEA R
arrant
nom. Input
Voltage
[VDC]
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
3.3, 5, 12, 15, 24
Output
Voltage
[VDC]
3.3
5
9
12
15
24
±3.3
±5
±9
±12
±15
±24
5/5
12/12
Output
Current
[mA]
76
50
28
21
17
10.4
±38
±25
±14
±10.4
±8.3
±5.2
25/25
10/10
max. Capacitive
Load
(2)
[µF]
1000
470
470
150
68
68
470
220
68
68
RE
RE
R0.25D
(3)
-xx09
(4,5)
R0.25D
(3)
-xx12
(4,5)
R0.25D
(3)
-xx15
(4,5)
R0.25D
(3)
-xx24
(4,5)
R0.25DA
(3)
-xx0505
(4,5)
R0.25DA
(3)
-xx1212
(4,5)
68
33
220/220
68/68
C
O
M
CONVER
T
C
O
M
CONVER
T
RoHS
2
+
compliant
TS
REACH
compliant
PL
U
D
IA
N
T
PRO
C
PL
U
D
IA
N
T
PRO
Notes:
Note1: Efficiency is tested at nominal input and full load at +25°C ambient
Note2: Max Cap Load is tested at nominal input and full resistive load and is defined as the
capacitive load that will allow start up in under 1s without damage to the converter
Model Numbering
R0.25S_- __ __ /_ _
Single, Dual
or Independent
DA
“Pinning
(3)
”
“Packaging
(5)
”
“Protection and Isolation Option
(4)
”
UL60950-1 certified
CAN/CSA-C22.2 No. 60950-1-07 certified
IEC/EN60950-1 certified
EN55032 compliant
CB report
nom. Input Voltage
Notes:
Note3: R0.25S:
Output Voltage
without marking denotes 5 pins out of 8 fitted (includes /H option)
with marking “8” denotes 8 pins out of 8 fitted (/H option not available)
with marking “12” denotes 10 pins out of 12 fitted (includes /H option)
R0.25D:
without marking denotes “6” pins out of 10 fitted (includes /H option)
R0.25D(A): with marking “10” denotes 10(7) pins out of 10 fitted (/H option not available)
R0.25D:
with marking “12” denotes 10 pins out of 12 fitted (includes /H option)
Note4: standard part is without continuous short circuit protection
add suffix „/P“ for continuous short circuit protection
add suffix „/H“ for 3kVDC isolation (not available for R0.25S8, R0.25D10 and R0.25DA10)
or add suffix „/HP“ for 3kVDC isolation and continuous short circuit protection
Note5: add suffix „-R“ for tape and reel packaging (compatible with all other suffixes)
REV.: 1/2019
ECO-1
www.recom-power.com
C
M
M
TS
10 from 10
E358085
y
w
E
R
E
R
S
S
CO
CO
R0.25S & R0.25D(A)
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Input Voltage Range
Efficiency
Minimum Load
Internal Operating Frequency
Output Ripple and Noise
20MHz BW
60%
0%
20kHz
50kHz
90kHz
100mVp-p
Series
Condition
Min.
Typ.
±10%
70%
Max.
Efficiency vs. Load
R0.25S-xx05
100
90
80
100
90
80
R0.25D-xx05
Efficiency [%]
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
3.305
0505
1205
90
100
Efficiency [%]
70
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
3.305
0505
1205
90
100
Output Load [%]
Output Load [%]
REGULATIONS
Parameter
Output Accuracy
Line Regulation
Load Regulation
(6)
low line to high line, full load
10% to 100% load
3.3Vout
5, 5/5Vout
9Vout
12, 12/12, 15, 24Vout
Condition
Value
±5.0% typ. / ±7.0% max.
2.0% max.
15.0% typ. / 20.0% max.
12.0% typ. / 15.0% max.
7.0% typ. / 10.0% max.
6.0% typ. / 10.0% max.
Notes:
Note6: Operation below 10% load will not harm the converter, but specifications may not be met
Tolerance Envelope
+10%
Output Voltage [%]
+5%
Vnom
Typical L
o
ad Line
+5%
-1%
-5%
10
50
100
Output Load [%]
continued on next page
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REV.: 1/2019
ECO-2
R0.25S & R0.25D(A)
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated)
Deviation vs. Load
R0.25S-xx05
25
20
15
3.305
0505
1205
25
20
15
Series
R0.25D-xx05
3.305
0505
1205
Deviation [%]
10
5
0
-5
-10
0
10
20
30
40
50
60
70
80
90
100
Deviation [%]
10
5
0
-5
-10
0
10
20
30
40
50
60
70
80
90
100
Output Load [%]
Output Load [%]
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
below 100mΩ
Type
without suffix
with suffix “/P”
without suffix
tested for 1 second
rated for 1 minute
tested for 1 second
rated for 1 minute
tested for 1 second
Value
1 second
continuous
1kVDC
500VAC/60Hz
3kVDC
1.5kVAC/60Hz
1kVDC
10GΩ min.
75pF max.
functional
Isolation Voltage
(7)
I/P to O/P
with suffix “/H”
0/P to O/P
R0.25DA
Viso=500V
Isolation Resistance
Isolation Capacitance
Insulation Grade
Notes:
Note7: For repeat Hi-Pot testing, reduce the time and/or the test voltage
Note8: Refer to local safety regulations if input over-current protection is also required. Recommended fuse: slow blow type
ENVIRONMENTAL
Parameter
Operating Temperature Range
Operating Altitude
Operating Humidity
Pollution Degree
MTBF
according to MIL-HDBK-217F, G.B.
continued on next page
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REV.: 1/2019
ECO-3
Condition
full load @ free air convection, refer to
“Derating Graph”
non-condensing
+25°C
+85°C
Value
-40°C to +100°C
2000m
95% RH max.
PD2
4423 x 10
3
hours
2161 x 10
3
hours
R0.25S & R0.25D(A)
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated)
Derating Graph
(@ Chamber and free air convection)
Series
Big Case (with marking 12)
100
90
80
Standard Case
100
90
80
Output Load [%]
60
50
40
30
20
10
0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120
Output Load [%]
Ambient Temperature [°C]
70
70
60
50
40
30
20
10
0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120
115
Ambient Temperature [°C]
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Information Technology Equipment, General Requirements for Safety
Information Technology Equipment, General Requirements for Safety
Information Technology Equipment, General Requirements for Safety
(CB Scheme)
Medical Electrical Equipment Part 1: General Requirements for Basic
Safety and Essential Performance
EAC
RoHS2
Report / File Number
E358085-A2-UL
LVD1605077-08
E322406-A2-CB-1
WD-SE-R-180674-A0
RU-AT.49.09571
Standard
UL60950-1, 2nd Edition:2007
CAN/CSA C22.2 No. 60950-1-07, 2nd Edition:2007
IEC60950-1:2005, 2nd Edition + A2:2013
EN60950-1:2006 + A2:2013
IEC60950-1:2001, 1st Edition
IEC60601-1:2005 + A1:2012, 3rd Edition
EN60601-1:2006 + A12:2014
TP TC 004/2011
RoHS-2011/65/EU + AM-2015/863
EMC Compliance
Electromagnetic compatibility of multimedia equipment -
Emission requirements
Condition
with external filter
(see filter suggestion below)
Standard / Criterion
EN55032, Class B
EMC Filtering Suggestions according to EN55032 Class B
Single Output
C2
FUSE
L1
+V
OUT
C1
Dual Output
C2
FUSE
L1
+V
OUT
C1
+V
IN
+V
IN
Com
-V
IN
-V
OUT
-V
IN
-V
OUT
Component List Class B
nom. Vin
3.3VDC
5VDC
12, 15VDC
24VDC
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C1
2.2µF MLCC
1.0µF MLCC
470nF MLCC
REV.: 1/2019
C2
L1
3.3µH SMD Inductor
4.7µH SMD Inductor
2.2µH SMD Inductor
47µH SMD Inductor
ECO-4
470pF/4kVDC
R0.25S & R0.25D(A)
DC/DC Converter
Specifications
(measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated)
EMC Filtering Suggestions according to EN55032 Class B
Dual Independent Output
+V
IN
FUSE
L1
+1V
OUT
C1
-1V
OUT
Series
C2
+2V
OUT
-V
IN
C3
-2V
OUT
Component List Class B
nom. Vin
3.3VDC
5VDC
12, 15VDC
24VDC
C1
2.2µF MLCC
1.0µF MLCC
470nF MLCC
C2
C3
L1
3.3µH SMD Inductor
4.7µH SMD Inductor
2.2µH SMD Inductor
47µH SMD Inductor
470pF/2kVDC
470pF/2kVDC
DIMENSION AND PHYSICAL CHARACTERISTICS
Parameter
Material
Dimension (LxWxH)
Weight
Type
case
R0.25S, R0.25S8
R0.25S12, R0.25D, R0.25D10, R0.25D12
R0.25S
R0.25S8
R0.25S12, R0.25D, R0.25D(A)10, R0.25D(A)12
Value
non-conductive black plastic, (UL94 V-0)
12.75 x 10.7 x 6.7mm
15.25 x 10.7 x 6.7mm
1.0g typ.
1.1g typ.
1.2g typ.
Dimension Drawing (mm)
5 Pin Single SMD Package
/H option is available in this pin package
embossed logo
Pinning Information
Pin #
1
2
4
5
8
Single
-Vin
+Vin
-Vout
+Vout
NC
6.7
0.25
7.0
12.75
10.7
3x2.54=7.62
0.50
1 2
8
2.54
4
5
8.50
11.10
8
1 2
1.20
5
4
1.80
Recommended Footprint Details
NC = No Connection
Tolerance:
xx.x= ±0.5mm
xx.xx= ±0.25mm
Bottom View
12.00
Top View
continued on next page
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REV.: 1/2019
ECO-5
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