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
21
5.90 [0.232]
2
SM503 DATE
TOP VIEW
3
5.20 Max. [0.204 Max.]
34
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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