TEXQ - 4 Port Auto MDI/MDIX Module

Features

Designed for Broadcom BCM5226/5228, Level One LXT9784/9785 and Kendin KS8995/8995E chipsets
Low profile (5.8mm) and light weight (4.5 g) 10/100Base-T Quad Port isolation transformer modules designed for Auto MDI/MDIX applications
SMD packages facilitate pick and place compatibility and speed of placement while providing consistent and reliable co-planarity
Modules meet requirements of IEEE 802.3u and ANSI X3.263
Manufactured in ISO-9001 approved facility

Electrical Specifications @ 25°C

Inductance: 350µH minimum @ 100kHz, 100mV, 8mA bias
Leakage Inductance: 0.4µH @ 1MHz
Minimum Isolation Voltage: 1,500 Vrms

Operating Temperature: 0° to +70°C
Storage Temperature: -25°C to +105°C
Standard packing: Tape and reel

Quality and consistency is guaranteed through 100% testing of the specified parameters for primary inductance, leakage inductance, turns ratio, DC resistance and Interwinding capacitance. This ensures that the return loss and pulse wave shape requirements can be fully maintained. Additionally, all parts are tested for 1,500V minimum isolation.

Applications

10/100BaseT Quad transformer modules contain transmit and receive isolation transformers to maintain consistent wave shape and suppression of common mode noise while providing equipment isolation per IEEE 802.3. High impedance common mode quad chokes for additional EMI suppression have been added on some models as required for FCC and CISPR 22 Class B certification.

TEXQ Series - Quad Port MDI/MDIX 10/100Base-T Isolation Transformer Modules

Part
Number

Turns Ratio
±2%

Insertion
Loss
(dB Typ.)

Return Loss
(dB Min.)

Crosstalk
(dB Typ.)

Differential to
Common Mode
Rejection (dB Typ.)

Schematic

0.1-100MHz

0.5-30MHz

40MHz

50MHz

60-80MHz

1MHz

30MHz

60MHz

100MHz

1-60MHz

60-200MHz

TEXQ-400M-J
TEXQ-400N-J
TEXQ-405N-J

1:1
1ct:1ct
1.89ct:1ct

1:1
1ct:1ct
1ct:1ct

-1.0
-1.0
-1.0

-18
-18
-18

-14.6
-14.6
-16

-13.1
-13.1
-14

-10
-10
-12

-65
-55
-32

-50
-45
-32

-40
-40
-32

-35
-33
-32

-40
-36
-40

-36
-24
-40

M
N
N

Dimensions

Schematics

Top of page

Nordtek Denmark - current sensor, ei30, ee20, pcb transformer, vergossen, plug in transformer, topswitch, simple switcher Nordtek Com - transformer design, magnetics, impedance, transformer ac, toroids strommessung, netztrafo, power supply,voltage transformer, telecom transformer, pulse current sense transformer, drossel, current sense transformer, inductive, ferrite, kleintransformatoren inductor, inductance, 3c85, 3f3, power transformer, toroid, 50/60hz, line transformer, emi talema chokes, talema toroid, nuvotem transformer, talema current transformers, talema current sensors, talema mini transformers, talema cross reference electronic starter, flicker starter, fluorescent lamps, safety starter, lamp starter, glow starters, tubestarter, rapid, ts8, sunbed, halogen transformer