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| 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 @ 25C Inductance: 350H minimum @ 100kHz, 100mV, 8mA Leakage Inductance: 0.4H @ 1MHz CW / W : 20pF typical Minimum isolation voltage: 1500 Vrms Operating Temperature Range: -40C to +85C Storage Temperature: -40C to +125C 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 Turns Ratio 2% Insertion L o ss (dB Typ) 0.1 - 100 MHz 2-30 MHz Part Number Return Loss (dB Min) 40 MHz 50 MHz 60-80 MHz 1 MHz Crosstalk (dB Typ) 30 MHz 60 MHz 100 MHz Common to Common Rejection Ratio 0.1-60MHz (dB Typ) Differential to Common Mode Rejection (dB Typ) 1-60 MHz 60-200 MHz Schematic Tx TEXD-400N-J 1ct:1ct Rx 1ct:1ct Transmit Receive -1.0 -18 -14.6 -13.1 -10 -55 -45 -40 -33 -40 -30 -36 -24 N Dimensions 0.606 (15.40) Schematic Suggested Pad Layout 0.091 (2.30) 0.030 (0.77) 20 19 18 17 N 16 15 14 13 12 11 0.630 0.551 (16,00) (14,00) TALEMA IN WK / YR TEXD-400N .050 (1.27) 0.078 (1.985) 0.661 (16.80) 0.450 (11.43) 9 x 0.05(1,27) 0.450 (11.43) 20 x .020 x .012 (0.50 x 0.30) 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 34 56 789 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 |
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