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Specifications
Isolation Voltage(Vrms):
1.5kV
Inductance:
350uH
Operating Temperature:
0℃~+70℃
Turns Ratio:
1:1
rate:
100M
Mfr. Part #:
B2018D
Package:
DIP-20,25.5x10mm
Key Attributes
Model Number:
B2018D
Product Description
Product Overview
The B2018D is a 10/100M Double Port Transformer Module designed for 10/100Mbps Ethernet applications. It features a double channel interface with common-mode chokes (CMCs) tuned to enhance EMC system performance. This module is compatible with various 10/100 Base-TX transceivers requiring a 1:1 transmit and receive turns ratio and complies with the IEEE 802.3ab standard, including baseline wander compensation. It is available in a Through Hole package.
Product Attributes
- Brand: CND-tek
- Model: B2018D
- Package Type: Through Hole
- Operating Temperature Range: 0 TO +70
- Storage Temperature Range: -25 TO +125
Technical Specifications
| Specification | Value | Conditions |
|---|---|---|
| OCL (Transmit & Receive) | 350 H Min. | @ 100 KHz, 100mV with 8mA DC Bias |
| Leakage Inductance | 0.5 H Max. | @ 100KHz, 0.1V |
| Cw/w | 56F Max. | @ 100KHz, 0.1V |
| DCR | 1.20 Max. | |
| Turns Ratio (TX) | 1CT:1 | |
| Turns Ratio (RX) | 1CT:1 | |
| Polarity (TX) | 1-20, 4-17, 6-15, 9-12 In-Phase | |
| Polarity (RX) | 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 |
| Return Loss | -15 dB Min. | @ 40 MHz |
| Return Loss | -13 dB Min. | @ 60 MHz |
| Return Loss | -11 dB Min. | @ 80 MHz |
| Return Loss | -10 dB Min. | @ 100 MHz |
| Cross Talk | -45 dB Min. | @ 30 MHz |
| Cross Talk | -40 dB Min. | @ 60 MHz |
| Cross Talk | -35 dB Min. | @ 100 MHz |
| Common Mode Rejection | -43 dB Min. | @ 1-30 MHz |
| Common Mode Rejection | -37 dB Min. | @ 60 MHz |
| Common Mode Rejection | -33 dB Min. | @ 80-100 MHz |
| HI-POT Isolation | 1500Vrms | 1mA, 1Second |
Packing Specification
| Description | Quantity |
|---|---|
| Units per Reel | 20 PCS |
| Reels per Carton | 280 PCS |
| Units per Carton | 5600 PCS |
2410141445_CND-tek-B2018D_C3003200.pdf
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