DS2109S/T&R Overview
A 18 termination occurs when a transmission line is terminated with a device that matches its characteristic impedance. Its low package cost makes it well known in the electronics industry. Packaging follows Tape & Reel (TR)'s material specifications. This is done using Surface Mount for mounting on a PCB. There should be no more than 0°C~70°C operating temperature. SCSI-qualified material suitable for standard applications. In order to ensure normal operation, 4V~5.25V Supply Voltage is provided. It is possible to find related parts using Base Part Number DS2109. Unlike other types of contacts, 28 pins are pronged. Device packages 28-SOIC are used by the supplier. To fully perform 5.25V's functions, it must receive its supply current. As a result, 0°C should be warmer than when the device is operating. Consequently, it operates at the maximum operating temperature of 70°C for maximum reliability.
DS2109S/T&R Features
18 terminations
Tape & Reel (TR) package
DS2109 family
28 pins

DS2109S/T&R Applications
There are a lot of Maxim Integrated
DS2109S/T&R Signal Terminators applications.

Data Networking
PCI Cards
Telecommunication Equipment
Data Routers
Data Switches
Programmable logic controller and remote input modules
High speed protected termination for digital input with serialized SPI output
IEC61131-2 type 1, 2 and 3
ESD protection and termination of USB downstream ports downstream ports
Desktop PCs

Mounting Type	Surface Mount
Package / Case	28-SOIC (0.295, 7.50mm Width)
Number of Pins	28
Supplier Device Package	28-SOIC
Operating Temperature	0°C~70°C
Packaging	Tape & Reel (TR)
Published	1998
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	18
Type	SCSI
Max Operating Temperature	70°C
Min Operating Temperature	0°C
Voltage - Supply	4V~5.25V
Base Part Number	DS2109
Operating Supply Voltage	5.25V
Number of Bits	18
RoHS Status	Non-RoHS Compliant
Lead Free	Contains Lead
Package / Case	28-SOIC (0.337, 8.56mm Width)
RoHS	Compliant
Package	Tape & Reel (TR)
Base Product Number	DS2109
Mfr	Analog Devices Inc./Maxim Integrated
Product Status	Obsolete
Operating Temperature	0°C ~ 70°C
Series	-
Max Operating Temperature	70 °C
Min Operating Temperature	0 °C
Voltage - Supply	4V ~ 5.25V
Operating Supply Voltage	5.25 V