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DS2109S

DS2109S

DS2109S

Maxim Integrated

1.27mm Signal Terminator DS2109 5V 28-SOIC (0.295, 7.50mm Width)

SOT-23

DS2109S Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 28-SOIC (0.295, 7.50mm Width)
Operating Temperature0°C~70°C
PackagingTube
Published 1998
JESD-609 Code e0
Part StatusObsolete
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 18
ECCN Code EAR99
Type SCSI
Terminal Finish Tin/Lead (Sn/Pb)
HTS Code8542.39.00.01
Voltage - Supply 4V~5.25V
Terminal Position DUAL
Terminal FormGULL WING
Peak Reflow Temperature (Cel) 245
Number of Functions 1
Supply Voltage 5V
Terminal Pitch1.27mm
Base Part Number DS2109
Pin Count28
JESD-30 Code R-PDSO-G28
Operating Supply Voltage5.25V
Differential OutputNO
Number of Signal Lines 18
Pull-up Resistance-Nom 110Ohm
Length 17.905mm
Height Seated (Max) 2.67mm
Width 7.495mm
Radiation HardeningNo
RoHS StatusNon-RoHS Compliant
Lead Free Contains Lead
In-Stock:3664 items

DS2109S Product Details

DS2109S 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 Tube'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. Specific uses are provided with 28 pins. In general, a signal line is defined as a line devoted solely to transmitting signals or intelligence, whether it's for purposes of public or private communication. High efficiency can be achieved by maintaining the supply voltage at 5V. In addition to the Surface Mount-mount, there is an S-mount. To fully perform 5.25V's functions, it must receive its supply current.

DS2109S Features


18 terminations
Tube package
DS2109 family
28 pin count
18 signal lines


DS2109S Applications


There are a lot of Maxim Integrated
DS2109S 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

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