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© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Document 830
Document 830 Revised 05/29/12
1. When ordering, please specify a packaging code:
HA4000-ALD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape (200 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.
2. Inductance is for the primary, measured across pins 2 and 4 at 200 kHz,
0.1 Vrms, 0 Adc.
Leakage Input
Part
Inductance
2
DCR max (mOhms)
3
inductance
4
voltage
Turns
number
1
min (µH) pri sec aux max (µH) range (V) pri : sec1 : sec2 : aux Output
5
HA4000-AL_ 270 56 0.5 294 0.6 36 – 78 12 : 1 : 1 : 7 3.3 V, 30 A
Dimensions are in
inches
mm
Planar Transformer
For National Semiconductor
LM5027 Active Clamp Controller
Core material Ferrite
Terminations RoHS matte tin over nickel over brass.
Weight 11.9 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 200/13″ reel Plastic tape: 44 mm wide, 0.37 mm thick,
32 mm pocket spacing, 9.35 mm pocket depth
PCB washing Only pure water or alcohol recommended
• Developed for the National Semiconductor LM5027 Voltage
Mode Active Clamp Controller.
• Chosen by NSC for T1 on the LM5027 Evaluation Board,
and is described in Application Note AN-1976.
• 1500 Vdc isolation, primary and auxiliary to secondaries
• Auxiliary winding provides 10 V to power the chipset.
3. DCR for the primary is measured from pin 2 to pin 4. DCR for the sec-
ondary is for each winding.
4. Leakage inductance is for the full primary and is measured with the
secondary shorted.
5. Output is with the secondary windings connected in series. Bias winding
output is 10 V, 65 mA.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Pins 7 and 9 to be connected on the PC
board. Pin 3 is internally connected only
and does not touch the PC board.
0.800
20,32
Recommended
Land Pattern
0.250
6,36
0.125
3,18
0.190
4,82
0.095
2,41
∅
∅
0.110
2,79
0.080
2,03
0.360
9,14
max
0.810
20,57
max
0.920
23,37
max
0.006 /0,15
1
2
10
6
7
9
4
5
1
5
3
2
4
6
7
9
10
Dot indicates pin 1
HA4000-AL
XXXX Y
Parts manufactured
prior to November, 2011
maybe marked
differently.
10
7
9
2
1
5
Aux
Sec1
Sec2
3
4
6
Pr
imary