Wound Beads (2944666681)

Part Number: 2944666681

44 WOUND BEAD

Explanation of Part Numbers:
– Digits 1 & 2 = Product Class
– Digits 3 & 4 = Material Grade
– Last digit 1 = Bulk Packed 4 = Taped and Reeled

Six and eleven hole beads, in two NiZn materials, are available both as beads (product class 26) and wound with tinned copper wire in several winding configurations (product class 29).

Wire used for winding is oxygen free high conductivity copper with 100% matte tin plating over a nickel undercoating.

Recommended storage temperature and operating temperature is -55 °C to 125 °C

Recommended Soldering Profile

Packaging Options:
– Parts with a 1 as the last digit of the part number are supplied bulk packed. Wound beads with part numbers 29–666631 and 29–666651 can be supplied radially taped and reeled per IEC 60286-1 and EIA 468-B standards. For these taped and reeled wound beads the last digit of the part number is a 4. Taped and reeled wound beads are supplied 500 pieces on a 13 reel.

For any wound bead requirement not listed in here, please contact our customer service group for availability and pricing. 

Catalog Drawing
3D Model

Weight: 1.4 (g)

Dimmmmm tolnominal inchinch misc.
A6±0.250.236_
B0.75+0.150.032_
C10±0.250.394_
D3.5Ref0.138Ref
Winding Information
Turns TestsWire Size1st Wire Length2nd Wire Length
2 x 1½0.53
24 AWG
38.0 ±3.0
(1.500”)
28.0 ±3.0
(1.102”)

Chart Legend
+ Test frequency
•A ½ turn is defined as a single pass through a hole.

Typical Impedance (Ω)
1 MHz45
10 MHz+213
50 MHz+400
100 MHz+470
200 MHz380

Beads are controlled for impedance limits only. Minimum impedance values are specified for the + marked frequencies. The minimum impedance is typically the listed impedance less 20%.

The 44 material beads and wound beads are tested on the 4193A Vector Impedance Meter. The 61 material parts on the 4291A RF Impedance Analyzer.

Typical Impendance (Ω)
1 MHz45
10 MHz+213
50 MHz+400
100 MHz+470
200 MHz380

Fair-Rite Products Corp.     One Commercial Row, Wallkill, New York 12589-0288
888-324-7748      845-895-2055      Fax: 845-895-2629      ferrites@fair-rite.com      www.fair-rite.com