| Parameters | 
                                                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 28-TSSOP (0.173, 4.40mm Width) | 
                                                                            
                                            | 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 | Non-RoHS Compliant | 
                                                                                                    
                            
                         
                                                DS2120E/T&R Overview
The 9 termination method ends a transmission line with a device that matches the line's characteristic impedance. In the electronic industry, the 28-TSSOP (0.173, 4.40mm Width) has a reputation for being economical. Tape & Reel (TR)'s packaging is made of the same materials. Using Surface Mount, you mount it on a PCB. Temperatures up to 0°C~70°C are considered to be maximums. The material meets SCSI, LVD, SE-qualification for standard applications. In order to maintain normal operation, there is a 2.7V~5.5V Supply Voltage provided. Suppliers use 28-TSSOP as a device package. 
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. 
- Network attached storage (NAS)
- mainframes
- Programmable logic controller and remote input modules
- Disk array (RAID)
- Telecommunication Equipment
- Server and workstation
- Notebooks
- personal computers
- ESD protection and termination of USB downstream ports downstream ports
- Data Routers