229 Colonnade Road, Nepean, Ontario, Canada K2E 7K3

Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com

LAN

An ISO 9001 Registered Company

• Provides excellent EMI filtering

• Designed for use with data grade unshielded twisted pair cable (UTP-5)

• Suitable for adapter card cable and multiport applications

• Meets IEEE 802.3 and ANSI X3.263 standards, including 350µH OCL

with 8mADC bias

ELECTRICAL SPECIFICATION @ 25˚C

Insertion

Loss

(dB MAX)

Return Loss

(dB MIN @ 100

Ω)

Differential to Common

Mode Rejection

(dB MIN)

Crosstalk

(dB TYP)

Part

Number

0.1-100

MHz

1-30

MHz

40

MHz

50

MHz

60-80

MHz

30

MHz

60

MHz

100

MHz

30

MHz

60

MHz

100

MHz

Hipot

(Vrms MIN)

8261

-1.0

-22

-20

-18

-12

-42

-38

-32

-50

-40

-40

1500

8262

1

-1.0

-22

-20

-18

-12

-45

-40

-35

-50

-40

-40

1500

8263

-1.0

-20

-20

-18

-14

-42

-36

-33

-50

-40

-40

1500

10/100 Base-T Single Port

Transformer Module

8261- 8263

SCHEMATIC

SUGGESTED PAD LAYOUT

Center-tapped inductor not included in 8261, so pin 12 connects to the transformer center tap.

1. Rise time optimized for National’s DP83843.