Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) 324-7748 www.fair-rite.com
Fair-Rite Product's Catalog
Part Data Sheet, 2743037446
Printed: 2013-07-03
Part Number: 2743037446
Frequency Range: Broadband Frequencies 25-300 MHz (43 & 44 materials)
Description: 43 SM BEAD
Application: Suppression Components
Where Used: Board Component
Part Type: SM Beads (Differential-Mode)
Mechanical Specifications
Weight: .450 (g)
Part Type Information
Surface mount beads are available from Fair-Rite in several materials and sizes. Their rugged construction lowers the
dc resistance and increases current carrying capacity compared to plated beads.
-SM Beads on 12 mm tape width are supplied taped and reeled per EIA 481-1 and IEC 60286-3 standards. SM Beads
on 16 and 24 mm tape widths are supplied taped and reeled per EIA 481-2 and IEC 60286-3 standards. Taped and
reeled parts are supplied on a 13'' reel.
-SM Beads can also be supplied not taped and reeled and then are bulk packed. This packing method will change
the last digit of the part number to a '6'.
-Wires are oxygen free high conductivity copper with 100% matte tin plating over a nickel undercoating.
-SM Beads meet the solderability specifications when tested in accordance with MIL-STD-202, method 208. After
dipping the mounting site of the bead, the solder surface shall be at least 95% covered with a smooth solder coating.
The edges of the copper strip are not specified as solderable surfaces.
-After preheating the beads to within 100 °C of the soldering temperature, the parts meet the resistance to soldering
requirements of EIA-186-10E, temperature 260±5 oC and time 10±1 seconds.
-Suggested land patterns are in accordance with the latest revision of IPC-7351.
-SM Beads are controlled for impedance limits only. Minimum impedance values are specified for the + marked frequencies.
The minimum impedance is typically the listed value less 20%. SM Beads in 73, 43 and 44 materials are measured for
impedance on the 4193 Vector Impedance Analyzer. The 52 and 61 SM Beads are tested for impedance on the 4291A RF Impedance
Analyzer.
-Recommended storage and operation temperature is -55°C to 125°C.
-The maximum practical current rating for these SM Beads is 5 amps, check the component bias curves. The 019/021/037
and 044 SM Beads can withstand a continuous current of 10 amps resulting in a component temperature rise < 40 °C
-For any SM Bead requirement not listed, please contact our customer service group for availability and pricing.
-Our 'Surface Mount Bead Kit' is available for prototype evaluation.
-Explanation of Part Numbers: Digits 1&2 = product class, 3&4 = material grade, last digit 6 = bulk packed, 7 = taped
and reeled.
Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) 324-7748 www.fair-rite.com
Fair-Rite Product's Catalog
Part Data Sheet, 2743037446
Printed: 2013-07-03
Mechanical Specifications
Dim mm mm nominal inch
tol inch misc.
A 2.70 ±0.20 0.106 -
B 4.60 ±0.20 0.181 -
C 9.25 -0.70 0.350 -
D 1.40 ±0.40 0.055 -
E - - - -
F - - - -
G - - - -
H - - - -
J - - - -
K - - - -
Land Patterns
VW XYZ
ref
5.000 8.000 1.800 3.000 -
0.197 0.315 0.071 0.118 -
Winding Information
Turns Wire 1st Wire 2nd Wire
Tested Size Length Length
- - - -
Reel Information
Tape Width Pitch Parts 7 '' Parts 13 '' Parts 14 ''
mm mm Reel Reel Reel
- ----
Package Size
Pkg Size
-
(-)
Electrical Specifications
Typical Impedance ( )
10 MHz 37
25 MHz+ 56
100 MHz+ 95
250 MHz 100 Connector Plate
# Holes # Rows
- -
Electrical Properties
Max Rdc(m ) 1.20
Legend
+ Test frequency
Preferred parts, the suggested choice for new designs,have shorter lead times and are more readily available.
The column H(Oe) gives for each bead the calculated dc bias field in oersted for 1 turn and 1 ampere direct current. The actual dc H field in
the application is this value of H times the actual NI (ampere-turn) product. For the effect of the dc bias on the impedance of the bead material,
see figures 18-23 in the application note How to choose Ferrite Components for EMI Suppression.
A ½ turn is defined as a single pass through a hole.
l/A - Core Constant l e: Effective Path Length
Ae: Effective Cross-Sectional Area Ve: Effective Core Volume
AL- Inductance Factor (L
__
N2)Nl - Value of dc Ampere-turns
N/AWG - Number of Turns/Wire Size for Test Coil
Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) 324-7748 www.fair-rite.com
Fair-Rite Product's Catalog
Part Data Sheet, 2743037446
Printed: 2013-07-03
See next page for further material specifications.
Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) 324-7748 www.fair-rite.com
Fair-Rite Product's Catalog
Part Data Sheet, 2743037446
Printed: 2013-07-03
Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) 324-7748 www.fair-rite.com
Fair-Rite Product's Catalog
Part Data Sheet, 2743037446
Printed: 2013-07-03
