Document 1274
For Silicon Labs Si88xx 2.5kV
Isolated DC-DC Converter
Flyback Transformer
• Developed for use with Silicon Labs Si88xx isolated dc-dc-
converter reference designs.
AEC
+
Q200 125°C
• 2500 Vrms, one minute isolation from primary to secondary
• Designed to meet basic insulation class with 3 mm creepage and
clearance
• AEC-200 Grade 1 qualified (–40°C to +125°C ambient)
Core material Ferrite
Terminations RoHS tin-silver-copper (95.5/3.8/0.7) over tin over
nickel over phos bronze.
Weight 0.9 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 600 per 13″ reel Plastic tape: 24 mm wide, 0.37 mm thick,
16 mm pocket spacing, 6.1 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
TA7608-AL_
3.0 – 5.5
2.0
0.06
0.033
0.105
1:4
2500
4.25
5 V, 0.4 A
1. When ordering, specify a packaging code:
TA7608-ALD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape. Quantities less than full reel available: in tape
(not machine ready) or with leader and trailer ($25
charge).
0.475
12,07
max
0.028
0,70
5
4
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
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.
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
0.235
5,97
max
0.004/0,10
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
0.067
1,70
0.358
9,1
0.063
1,60
8
2
Primary
(3 – 5.5 Vdc)
Secondary
(5 V, 0.4 A)
5
3
0.079
2,00
1
8
Recommended
Land Pattern
inches
mm
Dimensions are in
Document 1274 Revised 06/07/22
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
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Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2022
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.