Document 1290
For Silicon Labs Si88xx 5kV
Isolated DC-DC Converter
Flyback Transformer
• Developed for use with Silicon Labs Si88xx isolated dc-dc-
converter reference designs.
AEC
+
Q200 125°C
• 5000 Vrms, one minute isolation from primary to secondary
• Designedtomeetreinforcedinsulationclasswith8mmcreepage
and clearance.
• AEC-200 Grade 1 (–40°C to +125°C)
Core material Ferrite
Terminations RoHS tin-silver-copper (95.5/3.8/0.7) over tin over
nickel over phos bronze.
Weight 1.1 g
Ambient temperature –40°C to +125°C
Maximum part temperature +135°C
Storage temperature Component: –40°C to +135°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)
Packaging 700 per 13″ reel Plastic tape: 32 mm wide,
0.40 mm thick, 16 mm pocket spacing, 5.72 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
DCR max
Leakage
(Ohms)
Part
Input
Inductance2 inductance3
Turns ratio Isolation4 Isat5
number1 voltage (V)
±±5 (ꢀµ)
max (ꢀµ)
pri
sec
pri:sec
(Vrms)
(A)
Output
TA7618-AL_
3.0 – 5.5
2.0
0.064
0.031
0.185
1:4
5000
4.8
5 V, 0.4 A
1. When ordering, specify a packaging code:
TA7618-ALD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plas-
tic tape. Quantities less than full reel available: in
tape (not machine ready) or with leader and trailer
($25 charge).
0.672
17,07
max
0.028
0,70
0.394
10,00
max
0.079
2,00
B = Less than full reel. In an effort to simplify our
part numbering system, Coilcraft is eliminating
the need for multiple packaging codes. When
ordering, simply change the last letter of your part
number from B to D.
1
8
Dot indicates pin 1
max
Internal code
2. Inductance is for the primary, measured on an Agilent/HP 4284 at 100 kHz,
0.1 Vrms, 0 Adc.
3. Leakage inductance measured between pins 2 and 3 at 100 kHz, 0.1Vrms,
0 Adc with pins 8 and 5 shorted.
0.235
5,97
4. Isolation (hipot) measured between windings for one minute.
5. DC current that causes an inductance drop of 30% (typ) from its value
without current
0.004/0,10
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.067
1,70
0.555
14,1
0.063
1,60
8
2
Recommended
Land Pattern
Primary
Secondary
(5 V, 0.4 A)
(3 – 5.5 Vdc)
0.079
2,00
1
8
5
3
inches
mm
Dimensions are in
Document 1290 Revised 07/06/23
US +1-847-639-6400 sales@coilcraft.com
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Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2023
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.