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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 recognised 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 (=
and an optional undervoltage lockout function is also available (=
for short periods of time to cope with applications with large capacitive loads or high start up currents.
Description
Selection Guide
Features
Regulated
Converters
* add suffix "/A" or "/C" for pinning options,
* add suffix “/CTRL” for control pin option (A Pinning only)
* add suffix "/X1" for Undervoltage Lockout
* add suffix -R for Tape and Reel packaging
Part
Number
DIP24
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*
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.
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
see next page for details.
9 - 18, 18 - 36, 36 - 75
9 - 18, 18 - 36, 36 - 75
9 - 18, 18 - 36, 36 - 75
9 - 18, 18 - 36, 36 - 75
9 - 18, 18 - 36, 36 - 75
9 - 18, 18 - 36, 36 - 75
9 - 18, 18 - 36, 36 - 75
9 - 18, 18 - 36, 36 - 75
9 - 18, 18 - 36, 36 - 75
"/A"
or
"/C"
Voltage
4.5 - 9
4.5 - 9
4.5 - 9
4.5 - 9
4.5 - 9
4.5 - 9
4.5 - 9
4.5 - 9
4.5 - 9
(VDC)
Input
●
●
●
●
●
●
●
●
●
●
). Remote on/off control is possible with the /CTRL option (A pinning only)
8kVDC
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%
&
10kVDC Reinforced Isolation
Voltage
Output
"/X1"
(VDC)
±12
±15
±5
±9
12
15
24
5
9
). The converters can deliver 140% rated power
REV:2/2010
Current
Output
±350
±194
±145
±117
(mA)
700
388
290
233
145
(REC3.5-S_DRW/R8(R10)
xx = 4.5-9Vin = 05
xx = 9-18Vin = 12
xx = 18-36Vin = 24
xx = 36-75Vin = 48
80, 81, 82
81, 82, 83
82, 83, 84
84, 85, 86
83, 84, 85
80, 81, 82 ±2200µF
81, 82, 83 ±1600µF
81, 82, 83 ±1000µF
82, 83, 84 ±1000µF
Efficiency
2:1 Input
(%)
77
80
82
83
82
77
80
82
80
Capacitive
4700µF
3300µF
2200µF
2200µF
1000µF
Load
Max
(1)
Derating-Graph
(Ambient Temperature)
3.5 Watt DIP24
Reinforced
Single
Output
C22.2-No. 60950 Certified
C22.2-601.1 Certified
UL-60601.1 Certified
2002/95/EC
REC3.5/R
RoHS
ECONOLINE
DC/DC-Converter
with 3 year Warranty
6/6
Refer to Application Notes
&
Dual
E-314885
E-103