MSD1048 Datasheet, PDF (1/3 Pages) Coilcraft lnc. – Coupled Inductors

Document 1190-1
Coupled Inductors  MSD1048 ForFlyback,SEPIC,Zeta
and other Applications
01.400,36max
01.400,36max
123
Dot indicates pin1 ₁
Dash number
L1
2
L2
X
Internal code
3
4
0.118
3,0
0.189 ±0.008*
4,8 ±0,2
Recommended
Land Pattern
0.130
3,3
0.228
5,8
34
21
0.079
2,0
21
0.094
0.213
2,4
5,4
34
0.039
1,0
*
For optional tin-lead and tin-silver-copper
terminations, dimensions are for the mounted
part. Dimensions before mounting can be
an additional 0.012 inch (0,3 mm).
0.049
1.25
Dimensions
are
in
inches
mm
• Tight coupling (k ≥ 0.97)
• 200 V isolation
• Ideal for use in a variety of circuits including flyback, multi-output
buck, SEPIC, Ćuk and Zeta.
• High efficiency and excellent current handling
• Can also be used as two single inductors connected in series
or parallel, as a common mode choke or as a 1 : 1 transformer.
+
D
L1
L2
C
V_IN
C
SW
+
V_OUT
–
–
Typical Flyback Converter
L2 ^{D C}
+
V_OUTAUX
–
+
+
L1
V_IN
D
SW
C
V_OUT
–
–
Typical Buck Converter with auxiliary output
+
V_IN C
L1
Q
C1
L2
D
C
+
V_OUT
–
–
Typical SEPIC schematic
+
Q
V_IN C
C1
L1
L2
D
C
+
V_OUT
–
–
Typical Zeta schematic
Document 1190-1  Revised 11/09/15