● 8kVDC & 10kVDC Reinforced Isolation
● Industry Standard DIP24 Package
● 3.5W Regulated Output
● Continuous Short Circuit Protection
● Wide Input 2:1
ECONOLINE
DC/DC-Converter
with 3 year Warranty
Features
Regulated
Converters
● Medical Approved
● EN, CSA and CB Certificates
● 2 Pinout Options
● Control Pin Option
● Efficiency to 86%
3.5 Watt DIP24
Reinforced
Single & Dual
Output
The REC3.5 series uses a reinforced isolation transformer to offer exceptionally high isolation
of 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
and medical applications. The isolation capacitance of only 20pF makes them also suitable for
low leakage applications. The isolation transformer is recognized by CSA as reinforced isolated
with 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
lockout function is also available (="/X1").The converters can deliver 140% rated power for short
periods of time to cope with applications with large capacitive loads or high start up currents.
Description
Selection Guide
Part
Number
DIP24
Input
Voltage
(VDC)
Output Output Efficiency
Voltage Current
Max
Capacitive
Load
(1)
(VDC)
(mA)
(%)
REC3.5-xx05SRW/R*
REC3.5-xx09SRW/R*
REC3.5-xx12SRW/R*
REC3.5-xx15SRW/R*
REC3.5-xx24SRW/R*
REC3.5-xx05DRW/R*
REC3.5-xx09DRW/R*
REC3.5-xx12DRW/R*
REC3.5-xx15DRW/R*
9 - 18, 18 - 36, 36 - 75
4.5 - 9
5
700
80, 81, 82 4700µF
77
RoHS
6/6
2011/65/EU
E-314885
9 - 18, 18 - 36, 36 - 75
4.5 - 9
9
388
290
233
145
81, 82, 83 3300µF
80
C22.2-No. 60950 Certified
C22.2-601.1 Certified
UL-60601.1 Certified
9 - 18, 18 - 36, 36 - 75
4.5 - 9
12
15
24
5
82, 83, 84 2200µF
82
9 - 18, 18 - 36, 36 - 75
4.5 - 9
84, 85, 86 2200µF
83
9 - 18, 18 - 36, 36 - 75
4.5 - 9
83, 84, 85 1000µF
82
REC3.5/R
9 - 18, 18 - 36, 36 - 75
4.5 - 9
350 80, 81, 82 2200µF
77
9 - 18, 18 - 36, 36 - 75
4.5 - 9
9
194 81, 82, 83 1600µF
Derating-Graph
(Ambient Temperature)
80
9 - 18, 18 - 36, 36 - 75
4.5 - 9
12
15
145 81, 82, 83 1000µF
82
9 - 18, 18 - 36, 36 - 75
4.5 - 9
117 82, 83, 84 1000µF
80
120
100
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
Safe Operating Area
60
(REC3.5-S_DRW/R8(R10)
xx = 4.5-9Vin = 05
xx = 9-18Vin = 12
xx = 18-36Vin = 24
* add suffix "/A" or "/C" for pinning options,
see next page for details.
* add suffix “/CTRL” for control pin option (A Pinning only)
* add suffix "/X1" for Undervoltage Lockout
40
20
0
-40
0
25 50 75
125
105
xx = 36-75Vin = 48
85
Operating Temperature (°C)
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
Refer to Application Notes
E-145
www.recom-power.com
REV: 0/2015