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GA2972-ALD Datasheet, PDF (1/2 Pages) Coilcraft lnc. – SMT PFC Boost Inductor
Document 657 -1
SMT PFC Boost Inductor ForONSemiconductor
NCP1606 PFC Controller
• Designed to operate in 100 Watt applications.
• Referenced as LBOOST in application note AND8282/D.
• Auxiliary winding provides zero current detection (ZCD) infor-
mation and can also supply power to the NCP1606.
• 500 Vrms winding to winding and winding to core isolation
Core material Ferrite
Terminations  RoHS compliant tin-silver over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight  27 g
Ambient temperature  –40°C to +85°C with Irms current, +85°C to
+125°C with derated current
Storage temperature  Component: –40°C to +125°C.
Tray 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  24 parts per tray
PCB washing  Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf.
Part
  Inductance1
number ±10% (µH)
GA2972-AL
330
DCR max (Ohms)
pri    aux
0.30 0.35
  SRF2
(MHz)
1.2
Turns ratio
pri : aux
8  : 1
 
10% drop
4.2
Isat (A)3
20% drop 30% drop
4.5
4.8
Irms (A)4
20°C rise  40°C rise
1.7
2.3
1. Inductance measured at 100 kHz, 1.1 Vrms, 0 Adc using an Agilent/
HP 4263B impedance analyzer or equivalent.
2. SRF tested on an Agilent/HP 4192A.
3. DC current at which the inductance drops the specified amount from its
value without current.
4. Current that causes the specified temperature rise from 25°C ambient.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
01.545,01max
Dot indicates pin 1
1.169
29,7
1.26
32,0
max
0.004 / 0,10
2 Pri 1
5 Aux 4
5
216.0,962max
1.024
26,0
0.043
1,1
6
0.085
2,16
1
1.160
29,45
Recommended
Land Pattern
1
Dimensions are in
inches
mm
10
0.197
5,0
0.197
5,0
0.083
2,11
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 657-1  Revised 12/05/11
© 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.