January 29, 2008
SM503 SERIES SURFACE MOUNT COMMON MODE CHOKE
Features
Inductance Range from 5 µH to 4700µH
Operating Temp. -40°C to +85°C
Tinned Leads with Leaded Solder is Available
(Note 3)
Custom Inductance Values Available
Formerly the DR322 Series
ELECTRICAL SPECIFICATIONS AT 25ºC
PART No.
SM503-502
SM503-113
SM503-253
SM503-513
SM503-474
SM503-105
SM503-475
Turns Ratio
(2-3) & (1-4) (±1%)
1:1
1:1
1:1
1:1
1:1
1:1
1:1
Inductance (µH)
@100kHz, 0.1V,
±20%
5
11
25
51
470
1000
4700
DCR (Ω) Max.
(2-3) & (1-4)
0.11
0.12
0.20
0.30
0.25
0.40
0.55
RATED CURRENT
(A) Max.
0.5
0.5
0.5
0.5
0.5
0.5
0.2
MECHANICAL OUTLINES
9.20
[0.362]
7.20
[0.283]
1
4
2 1
5.90
[0.232]
2
SM503
DATE
TOP VIEW
3
5.20 Max.
[0.204 Max.]
3 4
SCHEMATIC
FRONT VIEW
7.2
0.60
[0.024]
2.54
[0.100]
2.54
1.2
5.0
BOTTOM VIEW
Suggested PCB Pad Layout
NOTES:
1. All dimensions are shown in millimeters “mm”[Inches “IN”].
2. General tolerance
±0.25mm[0.010
IN.], unless otherwise specified.
3. For non-RoHS parts replace SM prefix with 42- (e.g. SM503-502 becomes 42-503-502)
4. Terminal finish is compliant to RoHS requirements. Solder in accordance with J-STD-020C
DATATRONIC:
28151 Highway 74, Romoland, CA 92585 Tel: 951-928-7700, Toll Free Tel: 888-889-5391, Fax: 951-928-7701
email: ddisales@datatronics.com
499 King’s Road, Hong Kong Tel: (852) 2562 3858, (852) 2564 8477 Fax: (852) 2565 7214, (852) 2563 1290
All specifications are subject to change without notice.
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