Features
RegulatedConverters● 8kVDC & 10kVDC Reinforced Isolation● Industry Standard DIP24 Package● 3.5W Regulated Output● Continuous Short Circuit Protection● Wide Input 2:1● Medical Approved● EN, CSA and CB Certificates● 2 Pinout Options● Control Pin Option● Efficiency to 86%

ECONOLINE
DC/DC-Converterwith 3 year Warranty

3.5 Watt DIP24of 8kVDC (4kVAC/1 minute) or 10kVDC (5kVAC/1minute) making it suitable for HT monitoring
circuits, mains power meters, IGBT isolated power supplies and other sophisticated industrial Reinforcedand medical applications. The isolation capacitance of only 20pF makes them also suitable forlow leakage applications. The isolation transformer is recognized by CSA as reinforced isolated Single & Dualwith a minimum internal clearance of 2.4mm and a minimum internal creepage clearance of
4.6mm. The REC3.5 is available in two industry-standard pinouts (= "/A" or "/C"). Remote
on/off control is possible with the /CTRL option (A pinning only) and an optional undervoltage Output

Description The REC3.5 series uses a reinforced isolation transformer to offer exceptionally high isolationlockout function is also available (="/X1"). The converters can deliver 140% rated power for shortperiods of time to cope with applications with large capacitive loads or high start up currents.

Selection Guide
Input
Voltage(VDC)

OutputVoltage(VDC)

Output Efficiency
Max
Current
Capacitive(mA)(%)
Load (1)REC3.5-xx05SRW/R*

9 - 18, 18 - 36, 36 - 75

570080, 81, 82

REC3.5-xx09SRW/R*

9 - 18, 18 - 36, 36 - 75

9388

81, 82, 83

4.5 - 977

4.5 - 9REC3.5-xx12SRW/R*

9 - 18, 18 - 36, 36 - 75
9 - 18, 18 - 36, 36 - 75

12290

9 - 18, 18 - 36, 36 - 75

REC3.5-xx05DRW/R*

9 - 18, 18 - 36, 36 - 75

15233

9 - 18, 18 - 36, 36 - 75

83, 84, 85±5±350

80, 81, 82 ±2200µF

9 - 18, 18 - 36, 36 - 75
4.5 - 977±9±19481, 82, 83 ±1600µF
80±12±145

81, 82, 83 ±1000µF
82±15±117

Derating-Graph(Ambient Temperature)82, 83, 84 ±1000µF
80

R* = R8 or R10 for 8kVDC or 10kVDC isolation.
Note 1: Maximum capacitive load is defined as the capacitive load that will allow start up in under
1 second without damage to the converter.
2:1 Input(REC3.5-S_DRW/R8(R10)* add suffix "/A" or "/C" for pinning options,xx = 4.5-9Vin = 05
see next page for details.
xx = 9-18Vin = 12
* add suffix “/CTRL” for control pin option (A Pinning only)
xx = 18-36Vin = 24
* add suffix "/X1" for Undervoltage Lockout
xx = 36-75Vin = 48
Ordering Examples:
REC3.5-0512DRW/R8/A/CTRL= 5V Vin, ±12V Vout, 8kVDC isolation, pinout “A”,control pin
REC3.5-4805SRW/R10/A = 48V Vin, 5V Vout, 10kVDC isolation, pinout “A”
REC3.5-1212DRW/R8/C/X1 = 12V Vin, ±12V Vout, 8kVDC isolation, pinout “C”,UVL
REC3.5-0505SRW/R10/A/CTRL/X1 = 5V Vin, 5V Vout, 10kVDC isolation, pinout “A”,control pin, UVL
www.recom-power.com

REC3.5/R

1000µF82

4.5 - 9REC3.5-xx15DRW/R*2200µF

145

4.5 - 9REC3.5-xx12DRW/R*

84, 85, 86

24

4.5 - 99 - 18, 18 - 36, 36 - 75

E-314885

C22.2-No. 60950 Certified
C22.2-601.1 Certified
UL-60601.1 Certified

2200µF83

4.5 - 9REC3.5-xx09DRW/R*82, 83, 84
82

4.5 - 9REC3.5-xx24SRW/R*RoHS

2011/65/EU
6/63300µF

80

4.5 - 9REC3.5-xx15SRW/R*4700µF

REV: 0/2015

Output Power (%)

PartNumber
DIP24120
10080
6040200

Safe Operating Area

-4002550 7585
Operating Temperature (°C)

105 125

Refer to Application Notes
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REC3.5-S_DRW/R* Series

ECONOLINE
DC/DC-Converter
Specifications (measured at TA = 25°C, nominal input voltage, full load and after warm-up)
Input Voltage RangeOutput Voltage Accuracy
Line Regulation
Load Regulation
Input Surge

REC3.5/R

Undervoltage Lockout(HL-LL)(for output load current change from 20% to 100%)(1 minute)5V types
12V types
24V types
48V types(/X1 Versions)
5V types
12V types
24V types
48V types(0,1µF capacitor on output, 20MHz BW limited)(25% step change)(Full load and nominal input voltage)

2:1±2% max.
±0.3% max.
±0.6% max.
16V max.
25V max.
50V max.
100V max.
3.5V typ. (±20%)
7V typ. (±20%)
15V typ. (±10%)32V typ. (±10%)150mVp-p max.
1ms typ.
150kHz min. / 500kHz max.
Pi Network
MLCC capacitors only
20% Full Load
400mW max.
8000VDC
4000VAC / 60Hz
10000VDC.
5000VAC / 60Hz
20pF typ.
10 GΩ min.
Continuous, Auto Restart-40°C to +85°C (see Graph)
105°C max.
-55°C to +125°C
95% RH
Non-Conductive Plastic
Silicone
20°C/W
14g
15 pcs per Tube
1206 x 103 hours
392x 103 hours
Class AClass A
4.6 mm min.
2.4 mm min.
6.0 mm min.
6.0 mm min.
14.2 mm min.
EN 60601-1 3rd Edition

Output Ripple and NoiseTransient Response
Switching Frequency
Input Filter
Capacitors
All types
Minimum Load
(Operation under no load will not damage the converter, but it may not meet all specifications)
No Load Power Consumption
Isolation Voltage
R8-Suffix(tested for 1 second)(rated for 1 minute**)Isolation Voltage
R10-Suffix(tested for 1 second)(rated for 1 minute**)Isolation Capacitance
Isolation Resistance
Short Circuit Protection(Max operating temp. = 60°C during short circuit conditions)Operating Temperature Range(free air convection)
Case Temperature
Storage Temperature RangeRelative Humidity
Case Material
Potting Material
Thermal Impedance
Natural convection
Package Weight
Packing Quantity
MTBF (+25°C)
using MIL-HDBK 217F
Detailed Information see
Application Notes chapter "MTBF"(+75°C)
using MIL-HDBK 217F
EMC
Conducted Emissions
EN55022(with 470µF//0.1µF capacitors across input) Radiated Emissions
EN55022
Reinforced Isolation
Transformer Creepage/R8 and /R10 Types
Transformer Clearance/R8 and /R10 Types
PCB Creepage & Clearance/R8 and /R10 Types
Optocoupler Creepage/R8 and /R10 Types
External Creepage and Clearance
Plastic Case
Input <> Output pinsCertifications
EN Medical Safety
Report: MDD1207051 + RM1207051
Medical Report + ISO14971 Risk Assessment
IEC Medical Safety
CB Report: CA-10168-A1-UL
IEC 60601-1 3rd Edition
CSA
Medical Safety
Report: 2202478
C22.2 601-1 2nd Ed.
UL
Medical Safety
E314885-A4
UL 60601-1 3rd Edition
General Safety
Report: 2219431
C22.2 No. 60950-1-03
UL 60950-1 1st Ed.
Recognised as Reinforced Isolation
Supplement to Report: 2219431}**Any data referred to in this datasheet are of indicative nature and based on our practical experience only. For further details, please refer to our Application Notes.

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REC3.5-S_DRW/R* Series

ECONOLINE
DC/DC-Converter
Typical Characteristics - Continued

Efficiency vs Vin

Efficiency vs Load
Efficiency / Load100

Efficiency VS Input Voltage

0505

4805

80

REC3.5-xx05SRW/R*
REC3.5-xx05DRW/R*

60

Efficiency %Efficiency (%)

1205

4024052000% 20%40%
60%
Total Output current (%)

80%

100%0512

1212

60

Efficiency (%)

Efficiency %2412

2000% 20%
40%60%
Total Output current (%)

80%

100%48242424

600524www.recom-power.com

0

Efficiency (%)

Efficiency %

4020

nom

max

max+20%9088868482807876747270min

4812

max

max+20%max

max+20%12120512
2412

nom

Efficiency VS Input Voltage

80

REC3.5-xx24SRW/R*
REC3.5-xx12DRW/R*

0505

Input Voltage (V)Efficiency / Load
100

1205

REC3.5/R

4812

402405

Efficiency VS Input Voltage

80

REC3.5-xx12SRW/R*

4805

Input Voltage (V)Efficiency / Load
100

908886848280787674
7270min1224

0% 20%
40%60%Total Output current (%)

80%

100%

9088868482
807876747270
min

4824

2424

12240524

nom

Input Voltage (V)REV: 0/2015

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REC3.5-S_DRW/R* Series

ECONOLINE
DC/DC-Converter
Package Style and Pinning (mm) DIP 24 , Wide Input 2:1

Pin Connections“A” Pinning

Pin #20.30

32.00/R8 & /R10

10.20
4.1+0.25 /-0.5

15.24

0.51

4.60

Recommended Footprint Details

Dual

CTRL

CTRL

2–Vin–Vin

11

NC–Vout

14+Vout+Vout

16–Vout

Com22+Vin+Vin

23+Vin+Vin

NC = No Connection

1.00 ø+0.15/0(1) 2Single

1 (option)

11Bottom View

23 22162.54

14Top View

2.54

CRTL Version only

CTRL Option

22,23Vin+

20V

ON = Open or 0V< Vctrl <1.2V
OFF = 2.2V< Vctrl <12VOffOn

REC3.5/R

TTL Input“C” Pinning

XX.X ± 0.5 mm
XX.XX ± 0.25 mm

REC3.5-xxxx/CTRL
CTRL
11kW
1N414820.30

32.00/R8 & /R10

Pin Connections

10.20
4.1+0.25 /-0.5
0.51

2.03

15.24

Recommended Footprint Details
1.00 ø+0.15/01 210 11 12Single

Dual

1+Vin+Vin

2+Vin+Vin10NCCom11NCCom

12–Vout

NC

13+Vout–Vout

15NC+Vout

23–Vin–Vin

24–Vin–Vin

NC = No Connection

Bottom View
24 23Pin #152.54

132.54XX.X ± 0.5 mm
XX.XX ± 0.25 mm

Top View

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.

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REV: 0/2015

www.recom-power.com