40 PIN SMD ETHERNET 10/100 BASE QUAD PORT TRANSFORMER

P/N: 40ST1042 DATA SHEET

Page : 1/1

462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434

A0(02/06)

Feature

IEEE 802.3 Ethernet compatible, 100 BASE-TX.

Surface mountable.

Design for multiport repeater and Ethernet switching Hub

application.

Customer designs available for specific application.

Operating temperature range : 0℃ to +70℃.

Storage temperature range: -25℃ to +125℃.

Electrical Specifications @ 25°C

Turns Ratio

(±5%)

L.L

(uH Max)

Part

Number

TX

RX

OCL (uH Min)

@ 100KHz/0.1Vrms with

8mA/DC Bias

TX

RX

CW/W

(pF Max)

Insulation

Resistance

Voltage Isolation

(Vrms)

40ST1042

2CT:1CT

1:1

350

1.3

0.5

30

10,000

1500

Continue

Insertion Loss

(dB Max)

Return Loss

(dB Min)

Cross talk

(dB Min)

DCMR

(dB Min)

Part

Number

0.3–100MHz 0.3-30MHz

40MHz

50MHz

60-80MHz

0.3-100 MHz

1-60MHz 60-200MHz

40ST1042

-1.15

-18

-15.5

-13.6

-12

-38

-37

-25

Schematic

Mechanical