Bus Terminators

Bus terminators are electrical devices attached to the end points of a bus network to prevent the signals from reflecting off the end of the transmission line. They do this by supplying a load equal to the impedance of the cable.

How do bus terminators work?

Bus networks are connected in a chain formation by a single wire or series of wire segments. Once each component has detected a signal, the signal is absorbed by the bus terminator allowing other components to place their signals on the cable. Without the bus terminator, a signal placed on a wire by a component would bounce back and forth between the ends of the cable, preventing other cables from signaling.

What are bus terminators used for?

Bus terminators are used in ethernet networks, small computer system interfaces, dummy loads and control area networks. If you are looking for a device that can provide bidirectional input or output control and can be used in either digital or analogue devices consider a bus transceiver


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Description Price Termination Type Number of Bits Typical Resistance Maximum Supply Current Package Type Pin Count Dimensions Length Width Height Maximum Operating Supply Voltage Maximum Operating Temperature Minimum Operating Supply Voltage Minimum Operating Temperature
RS stock no. 186-9136
Mfr. Part No.STF202-22T1G
R 2.703
Each (On a Reel of 3000)
units
USB Line Termination - 1.5 (Pull-Up) kΩ, 22 (Series) kΩ 5 μA TSOP 6 3.1 x 1.7 x 1mm 3.1mm 1.7mm 1mm 5.25 V +125 °C - -55 °C
RS stock no. 162-9614
Mfr. Part No.NUF2221W1T2G
R 2.353
Each (On a Reel of 3000)
units
USB Line Termination 2bit 1.5 kΩ, 22 Ω 10 nA SC-88 6 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 5.25 V +125 °C - -55 °C
RS stock no. 791-6296
Mfr. Part No.NUF2221W1T2G
R 4.874
Each (On a Tape of 20)
units
USB Line Termination 2bit 1.5 kΩ, 22 Ω 10 nA SC-88 6 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 5.25 V +125 °C - -55 °C
RS stock no. 186-9924
Mfr. Part No.STF202-22T1G
R 7.077
Each (In a Pack of 25)
units
USB Line Termination - 1.5 (Pull-Up) kΩ, 22 (Series) kΩ 5 μA TSOP 6 3.1 x 1.7 x 1mm 3.1mm 1.7mm 1mm 5.25 V +125 °C - -55 °C