ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
30332
Esperanza, Rancho Santa Margarita, California
92688
tel 949-546-8000 | fax 949-546-8001 | www.abracon.com
rev1.1-8/05
EFD SMT INDUCTOR/TRANSFORMER
EFD SMT INDUCTOR/TRANSFORMER
EFD SMT INDUCTOR/TRANSFORMER
ALST-01, 02, 03 SERIES
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PHYSICAL CHARACTERISTICS:
STANDARD SPECIFICATIONS:
TECHNICAL INFORMATION:
Part L (µH) Leakage DCR Max I
DC
Number ± 20% (µH) (Ω) (A)
ALST-01- Max Max Max
3R8 3.8 0.20 0.061 1.73
4R5 4.5 0.20 0.061 1.46
6R8 6.8 0.20 0.061 0.97
11R2 11.2 0.20 0.061 0.59
63R2 63.2 0.20 0.061 0.10
Part L (µH) Leakage DCR Max I
DC
Number ± 20% (µH) (Ω) (A)
ALST-02- Max Max Max
3R8 3.8 0.20 0.057 2.81
4R9 4.9 0.20 0.057 2.18
6R1 6.1 0.20 0.057 1.75
11R3 11.3 0.20 0.057 0.95
69R7 69.7 0.20 0.057 0.15
Part L (µH) Leakage DCR Max I
DC
Number ± 20% (µH) (Ω) (A)
ALST-03 Max Max Max
3R4 3.4 0.20 0.047 4.59
4R3 4.3 0.20 0.047 3.63
5R3 5.3 0.20 0.047 2.95
9R9 9.9 0.20 0.047 1.60
76R8 76.8 0.20 0.047 0.20
SCHEMATIC:
6
5
2
4
3
1
7
8
9
10
11
12
ALST-01 ALST-02 ALST-03
A Typ 0.63 0.71 0.83
16,0 18,0 21,0
B Max 0.67 0.71 0.83
17,1 18,0 21,0
C Max 0.88 0.97 1.12
22,3 24,6 28,5
D Max 0.33 0.39 0.43
8
,
410
,
010
,
8
E 0.100 0.098 0.118
2,54 2,50 3,00
inch/m
m
• Inductance measured at Pin 1-2, 100KHz 0.1VRMS
• Add - M for 20% inductance tolerance
• DCR measured at each winding
• Leakage measure at pin 1-12 with all other windings shorted
• Insulation Resistance: 500 VDC, 1KMΩ min. (windings to windings)
• Hipot: 500VRMS, 1 minute, windings to windings
• Turns ratio: 1:1:1:1:1:1 ± 2 % (windings to windings)
• Polarity: 1, 2, 3, 4, 5, 6 are in phase
• IDC: Max of 30% L drops from initial value (10% typical)
• IRMS: DT of 40°C max (01=1.5A, 02=1.70A, 03=2.00A)
(with all windings parallel connected)
• RoHS Compliance product
Note: All specifications subject to change without notice.
OPTIONS:
• Bulk Pack is standard
• Custom design available
APPLICATIONS:
• SMPS
• DC/DC converter
FEATURES:
• Higher Frequency
• Low saturation
• Low EMI radiation
• Multi-windings
