Document 601
For STMicroelectronics
Flyback Transformers POTS interface
• Developed for the ST Micro STL3075 and STL3085 Integrated
POTS interfaces for home access gateway and WLL.
• Provides negative voltage (–46 V typical) to operate the
microchip
Core material Ferrite
Interwinding isolation 1500 Vdc
Terminations RoHS tin-silver over tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight 1.9 – 2.1 g
Ambient temperature –40°C to +85°C
Storage temperature Component: –40°C to +85°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 450 per 13″ reel Plastic tape: 24 mm wide,
0.45 mm thick, 16 mm pocket spacing, 9.04 mm pocket depth
PCB washing Only pure water or alcohol recommended
Inductance Inductance
Leakage
at 0 A2
at Ipk3
inductance4 Turns ratio
Ipk3
(A)
Input
voltage (V)
DCR max (Ohms)
Part
number1
±±8 (ꢀµ)
min (ꢀµ)
pri
sec
max (ꢀµ)
pri : sec
FA2469-AL_
FA2470-AL_
19
19
14.86
14.86
0.036
0.036
16.5
7.92
0.414
0.400
1 : 16
1 : 8
1.5
1.5
4.5 – 8.5
8.5 – 12.0
1. When ordering, please specify packaging code:
FA2470-ALD
2. Inductance is for the primary, measured at 10 kHz, 0.1 Vrms, 0 Adc.
3. Ipk is peak primary current drawn at minimum input voltage.
4. Leakage inductance measured between pins 1 and 3 with pins 4 and 6
shorted.
5. Operating temperature range –40°C to +85°C.
6. Electrical specifications at 25°C.
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic
tape (350 parts 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.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Dot above pin1
4
1
Pri
3
Sec
6
0.355
9,02
max
0.004/0,10
0.041
1,05
0.520
13,21
max
Recommended
Land Pattern
0.339
8,60
0.050
1,27
0.028
0,70
0.080
2,03
0.370
9,40
6
4
1
3
0.430
10,92
max
0.098
2,50
0.098
2,50
1
inches
mm
Dimensions are in
Document 601 Revised 03/07/07
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
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China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© 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.