Document 888
Isolation Transformers
For Analog Devices ADuM347x
Quad-Channel Digital Isolators
• Developed to work with Analog Devices ADuM347x quad-
channel, digital isolators with integrated PWM controller and
transformer driver
• Power rating: 2 Watts
• Designed to meet UL/CSA/IEC 60950 Basic Insulation with
1.5 mm creepage and clearance.
Core material
Ferrite
Terminations
Tin-silver over tin over nickel over phos bronze
Isolation
2500 Vrms primary to secondary; 500 Vrms winding to core
Weight
0.95 – 0.98 g
Ambient temperature
–40°C to +125°C
Storage temperature
Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat
Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL)
1 (unlimited floor life at <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging
600/13″ reel; Plastic tape: 24 mm wide, 0.37 mm thick,
16 mm pocket spacing, 6.1 mm pocket depth
PCB washing
Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf
Part
number
1
JA4631-BL_
JA4650-BL_
KA4976-AL_
Inductance
min (µH)
63.75
63.75
63.75
2
Turns
ratio
1
:
2
1
:
3
1
:
5
pri
5V
5V
5V
Pri / output voltages
output
output
(pin 8)
(pins 6 & 7)
+3.3 to +5 V
+12 to +15 V
+12 to +15 V
output
(pin 5)
DCR max
(Ohms)
3
pri
sec
0.095
0.122
0.095
0.190
0.260
1.17
Leakage Volt-time
inductance
4
product
5
max (µH)
(V-µsec)
0.460
0.660
0.515
17.6
17.6
17.6
0V
No output
+6 to +7.5 V
0V
0V
–12 to –15 V
1. When ordering, please specify a
packaging
code:
JA4631-BLD
Packaging: D
= 13″ machine ready reel. EIA-481 embossed plastic
tape (600 per full reel).
B
= Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge), use
code letter D instead.
2. Inductance is for the primary, measured from pins 4 – 3 at 1 kHz, 0.1 Vrms.
3. DCR is for each winding of the primary and secondary.
4. Leakage inductance is for the primary windings, measured from pins 1 – 4
with all secondary windings shorted.
5. Based on Bsat of the core at 25°C and the number of turns on winding 4 - 3.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Analog Devices is a trademark of Analog Devices, Inc.
Dimensions are in
inches
mm
US
+1-847-639-6400 sales@coilcraft.com
UK
+44-1236-730595 sales@coilcraft-europe.com
Taiwan
+886-2-2264 3646 sales@coilcraft.com.tw
China
+86-21-6218 8074 sales@coilcraft.com.cn
Singapore
+ 65-6484 8412 sales@coilcraft.com.sg
Document 888 Revised 09/01/11
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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