GA3291-AL COILCRAFT [Coilcraft lnc.], GA3291-AL Datasheet

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GA3291-AL

Manufacturer Part Number
GA3291-AL
Description
Forward Converter Transformer
Manufacturer
COILCRAFT [Coilcraft lnc.]
Datasheet
GA3291-AL_
1. When ordering, please specify a packaging code:
0.028
0.118
© Coilcraft, Inc. 2009
Forward Converter Transformer
0,70
3,00
number
Packaging: D = 13 machine ready reel. EIA-481 embossed plastic
0.425
10,80
Part
max
1
6
1
B = Less than full reel. In tape, but not machine ready. To
Inductance
Dot indicates pin 1
min (µH)
tape (175 parts per full reel).
have a leader and trailer added ($25 charge), use
code letter D instead.
152
1.148
29,15
0.969
0.827
24,6
21,0
GA3291-ALD
max
2
DCR max (Ohms)
0.065
pri
0.031
12
7
0.810
20,57
sec
0.004 / 0,10
max
3
Specifications subject to change without notice.
Please check our website for latest information.
inductance
max (µH)
Leakage
0.118
0.069
3,00
1,75
0.215
0.130
3,3
Dimensions are in
4
range (V)
1
voltage
36 – 57
Input
• Developed for Akros Silicon AS1130, 30 W PoE Controller
• Designed for forward topology operating at 350 kHz
• 1500 Vrms isolation from primary to secondary
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 10.7 g
Ambient temperature –40°C to +125°C
Storage temperature Component: –40°C to +125°C.
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 175 per 13 reel Plastic tape: 44 mm wide, 0.4 mm thick,
32 mm pocket spacing, 11.9 mm pocket depth
PCB washing Only pure water or alcohol recommended
2. Inductance is measured at 300 kHz, 0.6 Vrms, 0 Adc.
3. DCR for the primary is measured from pin 1 to pin 3.
4. Leakage inductance is for the primary (pin 1 to pin 3) and is measured
5. Turns ratio is based on the entire the primary winding (pin 1 to pin 3).
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Recommended
Land Pattern
with Integrated DC-DC Conversion
with the secondary shorted.
0.930
23,62
inches
mm
Turns ratio
pri : sec
1 : 0.923
12
5
12 V, 2.5 A
Output
Document 674 Revised 10/28/08
Primary is pin 1 to pin 3.Terminal 2
is for internal connection only. Do not
connected terminal 2 to ground or
any circuitry.
DO1608C-103 MSS1278-683
Pri
inductor
Input
1
filter
3
For Akros AS1130
PoE Controller
2
Document 674
inductor
Output
filter
7
8
Sec

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