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HA3858_16 Datasheet, PDF (2/2 Pages) Coilcraft lnc. – Magnetics for 300 W Power Supply with PFC
Document 746-2
Magnetics for 300 W PFC Power Supply
HA3858-AL Gate Drive Transformer
Primary
Leakage
Part
Turns   inductance1   inductance2
DCR max
number
ratio
±25% (µH)
max (µH)
(Ohms)
Volt-time
product
(V-µsec)
SRF
  typ3
(MHz)
HA3858-AL
1:1:1
460
1.87 (1 – 2)
0.380 (Pri [A])
150
1.15
2.06 (3 – 4)
0.472 ((Pri [B])
0.424 (sec)
1. Inductance is for each winding, measured at 200 kHz, 0.4 Vrms, 0 Adc.
2. Leakage inductance is for each primary, measured at 200 kHz, 0.4 Vrms with secondary pins shorted.
3. SRF measured with coils connected in series using an Agilent/HP 4192 or equivalent.
4. Operating temperature range −40°C to +85°C.
5. Isolation:  3000 Vrms, one minute primary to secondary; 500 Vrms, one minute windings to core
6. Electrical specifications at 25°C.
Dot indicates pin 1
1
8
08.3,8590 max
Pri [ A]
Sec
2
7
0.541
13,75
0.125
3,18
min
0.675
17,15
max
4
5
0.148
3,75
0.00,264∅
0.148
3,75
0.541
1
13,75
8
3
Pri [ B]
4
01.66,5501max
1
8
Dimensions are
in
inches
mm
4
5
0.030
0,762
∅
Recommended
PC Board Layout
Capacitance
max (pF)
8.48 (pri)
28.66 (sec)
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Document 746-2  Revised 07/23/09
© Coilcraft Inc. 2016
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.