SM Beads (Differential- Mode)

Part Number: 2744555577

44 SM BEAD

Explanation of Part Numbers:

– Digits 1 & 2 = Product Class

– Digits 3 & 4 = Material Grade

– Last digit 6 = Bulk Packed, 7 = Taped and Reeled

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.

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 °C and time 10 ±1 seconds.

Recommended storage and operation temperature is -55 °C to 125 °C.

Our “Surface Mount Bead Kit” (part number 0199000025) is available for prototype evaluation.

Recommended Soldering Profile

Packaging Options:

– SM Beads on 12 mm tape width are supplied taped and reeled per EIA 481 and IEC 60286-3 standards. SM Beads on 16 and 24

mm tape widths are supplied taped and reeled per EIA 481 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”.

For any SM Bead requirement not listed, please contact our customer service group for availability and pricing.

Suggested land patterns are in accordance with the latest revision of IPC-7351.

Weight: 0.96 (g)

Dim

mm

mm tol

nominal inch

inch misc.

A

5

Max

0.197

Max

B

5

±0.25

0.197

_

C

11

Max

0.433

Max

D

2.5

±0.50

0.098

_

Land Patterns

V

W

X

Y

Z

2.00

(0.079”)

7.00

(0.276”)

2.00

(0.079”)

5.00

(0.197”)

_

Reel Information

Tape Width

mm

Pitch

mm

Parts 7"

Reel

Parts 13"

Reel

Parts 14"

Reel

24

8

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1500

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