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Specifications
Isolation Voltage(Vrms):
1.5kV
Inductance:
350uH
Operating Temperature:
0℃~+70℃
Turns Ratio:
1:1
rate:
100M
Mfr. Part #:
TF-208DG
Package:
DIP-20,25.5x10mm
Key Attributes
Model Number:
TF-208DG
Product Description
Product Overview
The TF-208DG is a 10/100M Double Port Transformer Module designed for Ethernet applications. It features a 1:1 transmit and receive turns ratio, compliant with IEEE 802.3 standards, including baseline wander compensation. This module offers double channel interfaces with tuned Common Mode Chokes (CMCs) to enhance EMC system performance. It is available in a Through Hole package and operates within a temperature range of 0 to +70.
Product Attributes
- Brand: CND-tek
- Model: TF-208DG
- Package Type: Through Hole
- Operating Temperature: 0 TO +70
- Storage Temperature: -25 TO +125
Technical Specifications
| Parameter | Value | Conditions |
|---|---|---|
| OCL (Open Circuit Inductance) | 350 H Min. | @ 100 KHz, 100mV with 8mA DC Bias |
| Leakage Inductance | 0.5 H Max. | @ 100KHz, 0.1V |
| Cw/w (Interwinding Capacitance) | 56F Max. | @ 100KHz, 0.1V |
| DCR (DC Resistance) | 1.20 Max. | |
| Turns Ratio (5%) | 1CT:1 (TX), 1CT:1 (RX) | |
| Polarity | 1-20, 4-17, 6-15, 9-12 In-Phase | |
| Insertion Loss | -1.1 dB Max. | (TX & RX)@ 1-100 MHz |
| Return Loss | -18 dB Min | @ 0.5-30MHz |
| -15 dB Min | @ 40 MHz | |
| -13 dB Min | @ 60 MHz | |
| -11 dB Min | @ 80 MHz | |
| -10 dB Min. | @ 100 MHz | |
| Cross Talk | -45 dB Min. | @ 30 MHz |
| -40 dB Min. | @ 60 MHz | |
| -35 dB Min. | @ 100 MHz | |
| Common Mode Rejection | -43 dB Min. | @ 1-30 MHz |
| -37 dB Min. | @ 60 MHz | |
| -33 dB Min. | @ 80-100 MHz | |
| Isolation HI-POT | 1500Vrms | 1mA, 1Second |
Packing Specification
| Item | Quantity |
|---|---|
| Units/Reel | 20 PCS |
| Reel/Carton | 280 PCS |
| Units/Carton | 5600 PCS |
2410151404_CND-tek-TF-208DG_C408872.pdf
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