Part Number: 2944778101
44 PC BEAD
Explanation of Part Numbers:
– Digits 1 & 2 = Product Class
– Digits 3 & 4 = Material Grade
– Last digit 1 = Standard Wire Length 2.4 mm (0.095″) Minimum, 2 = Wire Length 3.1 mm (0.122) Minimum
Multiple single turn or multi-turn printed circuit EMI suppression beads are available in two Fair-Rite materials. The broadband 44 material and in the high frequency 52 material grade.
Wires are oxygen free high conductivity copper with 100% matte tin plating over a nickel undercoating. Wires on top of the beads are covered with a layer of epoxy.
Recommended operating and storage temperature for the PC Beads is -55 °C to +125 °C.
PC Beads can be supplied with lower component heights “C”. Also, the wire length “F” can be modified to specific requirements.
Weight: 2.7 (g)
Dim | mm | mm tol | nominal inch | inch misc. |
A | 11.2 | -0.50 | 0.431 | _ |
B | 5.75 | -0.50 | 0.217 | _ |
C | 11.8 | Max | 0.464 | Max |
D | 2.54 | ±0.10 | 0.1 | _ |
E | 2.54 | ±0.10 | 0.1 | _ |
F | 2.79 | ±0.25 | 0.110 | _ |
G | 0.65 | _ | 0 | 22 AWG |
Chart Legend
+ Test frequency
Typical Impedance (Ω) | |
10 MHz | 132 |
25 MHz+ | 205 |
100 MHz+ | 314 |
250 MHz | 323 |
PC Beads are controlled for impedance only. Minimum impedance values are specified for the + marked frequencies. The minimum impedance is typically the listed impedance less 20%.
The PC Beads in 44 material are measured on the E4990A Impedance Analyzer. The 52 PC Beads are tested for impedance on the E4991A / HP4291B Impedance Analyzer.
Typical Impendance (Ω) | |
10 MHz | 115 |
25 MHz+ | 188 |
100 MHz+ | 288 |
250 MHz | 305 |