| Parameters | 
                                                                                                            
                                            | Supplier Device Package | 28-TSSOP | 
                                                                            
                                            | Operating Temperature | 0°C~70°C | 
                                                                            
                                            | Packaging | Tape & Reel (TR) | 
                                                                            
                                            | Part Status | Obsolete | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 
                                                                            
                                            | Number of Terminations | 9 | 
                                                                            
                                            | Type | SCSI, LVD, SE | 
                                                                            
                                            | Voltage - Supply | 2.7V~5.5V | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 28-TSSOP (0.173, 4.40mm Width) | 
                                                                                                    
                            
                         
                                                DS2120E+T&R Overview
A 9 termination occurs when a transmission line is terminated with a device that matches its characteristic impedance. The 28-TSSOP (0.173, 4.40mm Width) is well known in the electronic industry due to its low package cost. Materials used for packaging are the same as those used by Tape & Reel (TR). Surface Mount is used for mounting it on a PCB. There should be no more than 0°C~70°C operating temperature. The material meets SCSI, LVD, SE-qualification for standard applications. In order to ensure normal operation, 2.7V~5.5V Supply Voltage is provided. Using 28-TSSOP as a device package, the supplier makes devices. 
DS2120E+T&R Features
9 terminations
Tape & Reel (TR) package
DS2120E+T&R Applications
There are a lot of Rochester Electronics, LLC DS2120E+T&R Signal Terminators applications. 
- Desktop PCs 
- Storage area networks (SAN)
- personal computers
- workstations
- laser printers
- Data Networking
- CD-ROM drives
- Data Networking
- Data Routers
- IEC61131-2 type 1, 2 and 3