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 CW / 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. T E X D - D u a l P o rt S MD MD I/MD IX 1 0 /1 0 0 B a s e -T Is o la tio n Tra n s fo rme r Mo d u le Part Number TEXD-400N-J Insertion L o ss (dB Typ) Turns Ratio ±2% Tx Rx 0.1 - 100 MHz 1ct:1ct 1ct:1ct -1.0 Return Loss (dB Min) 0.1-60MHz (dB Typ) 2-30 MHz 40 MHz 50 MHz 60-80 MHz 1 MHz 30 MHz 60 MHz 100 MHz Transmit -18 -14.6 -13.1 -10 -55 -45 -40 -33 -40 Dimensions 0.091 (2.30) -30 -36 -24 N 0.030 (0.77) N 20 19 18 17 16 15 14 13 12 11 7 8 9 10 0.661 (16.80) 0.078 (1.985) .020 x .012 (0.50 x 0.30) Schematic 0.450 (11.43) .050 (1.27) 9 x 0.05(1,27) 20 x 60-200 MHz Suggested Pad Layout TALEMA IN WK / YR TEXD-400N 0.450 (11.43) Receive 1-60 MHz Schematic 0.606 (15.40) 0.630 0.551 (16,00) (14,00) Differential to Common Mode Rejection (dB Typ) Common to Common Rejection Ratio Crosstalk (dB Typ) 0° - 8° 0.228 (5,80) Surface coplanarity will be 0.004 (0.01) maximum Dimensions: Inches (Millimeters) Tolerance: ±0.010 (0.25) unless specified otherwise 1 2 3 4 TX 5 6 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