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Two Hole Balun Cores


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Laird Technologies’ family of two-hole "balun" cores offers a versatile, compact, and economical solution to a variety of RF challenges. In addition to the traditional balanced-unbalanced impedance matching CATV transformer application, these parts are equally useful as single and dual broadband transformer cores and for common-mode and differential-mode EMI suppression in such applications as power lines and detonation protection circuits.



Item #

Figure Number

Dimension A

Dimension B

Dimension C

Dimension D

Dimension E

N0136-00P 1 3.45 mm 2.01 mm 2.36 mm 0.86 mm 1.45 mm
N0136-10P 1 3.45 mm 2.01 mm 1.50 mm 0.86 mm 1.45 mm
N0136-30P 1 3.45 mm 2.01 mm 1.65 mm 0.86 mm 1.45 mm
N0138-00P 1 3.45 mm 2.01 mm 0.68 mm 0.86 mm 1.45 mm
N0252-000 2 6.35 mm N/A 6.35 mm 1.19 mm 3.05 mm
N0277-00P 1 7.04 mm 4.06 mm 6.20 mm 1.80 mm 3.90 mm
N0372-00P 3 9.40 mm 5.35 mm 8.00 mm 2.59 mm 5.24 mm