TEXD-400N-J Datasheet, PDF (1/1 Pages) Nuvotem Talema – Dual Port SMD Auto MDI/MDIX 10/100Base-T Isolation Transformer Modules

Dual Port SMD Auto MDI/MDIX 10/100Base-T Isolation Transformer Modules
Features
• Low profile (6.0mm) and light weight (3.0 g) 10/100Base-T Dual
Port isolation transformer modules facilitate pick and place
compatability and speed of placement
• Dual port modules meet requirements of IEEE 802.3u and
ANSIX3.263
• Consistent and reliable coplanarity
• Manufactured in an ISO-9001:2000, TS-16949:2002
and ISO-14001:2004 certified Talema facility
• Fully RoHS compliant and meets lead free reflow
level J-STD-020C
Electrical Specifications @ 25°C
Inductance: 350µH minimum @ 100kHz, 100mV, 8mA
Leakage Inductance: 0.4µH @ 1MHz
C_{W / W} : 20pF typical
Minimum isolation voltage: 1500 Vrms
Operating Temperature Range: -40°C to +85°C
Storage Temperature: -40°C to +125°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 1500V minimum isolation.
Applications
Talema 10/100BaseT Dual transformer modules contain transmit and receive isolation transformers to maintain consistant
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.
TEXD - Dual Port SMD MDI/MDIX 10/100Base-T Isolation Transformer Module
Part Number
TEXD-400N-J
Turns Ratio
±2%
Insertion
Loss
(dB Typ)
Return Loss
(dB Min)
Crosstalk
(dB Typ)
Tx
Rx
0.1 - 100 2-30 40
MHz
MHz MHz
50 60-80 1
30 60
MHz MHz MHz MHz MHz
1ct:1ct 1ct:1ct -1.0 -18 -14.6 -13.1 -10 -55 -45 -40
Common to Common
Rejection Ratio
0.1-60MHz (dB Typ)
Differential to
Common Mode
Rejection (dB Typ)
Schematic
100
MHz
Transmit
Receive
1-60
MHz
60-200
MHz
-33 -40
-30
-36
-24
N
Dimensions
0.606
(15.40)
0.630 0.551
(16,00) (14,00)
TALEMA IN
WK / YR
TEXD-400N
9 x 0.05(1,27)
0.450
(11.43)
0.078
(1.985)
Suggested Pad Layout
0.091
(2.30)
0.030
(0.77)
.050
(1.27)
0.661
(16.80)
0.450
(11.43)
20 x
.020 x .012
(0.50 x 0.30)
0° - 8°
Surface coplanarity will be 0.004 (0.01) maximum
Dimensions: Inches (Millimeters)
Tolerance: ±0.010 (0.25) unless specified otherwise
0.228
(5,80)
Schematic
N
20 19 18 17 16 15 14 13 12 11
1
2 34
5 6 7 8 9 10
TX
RX TX
RX
Germany: Int.+49 89 - 841 00-0 • Ireland: Int.+35 374 - 954 8666 • Czech Rep: Int.+420 377 - 338 351 • India: Int.+91 427 - 244 1325
http://www.talema-nuvotem.com
(10-06) Communications\Networks\TEXD 20 Pin