Operating Temperature:	-40°C ~ 85°C
Contact Material:	Silver (Ag), Gold (Au)
Coil Power:	200 mW
Coil Resistance:	45 Ohms
Series:	TX-D
Packaging:	Tape & Reel (TR)
Part Status:	Active
Relay Type:	General Purpose
Coil Type:	Non Latching
Coil Current:	66.7mA
Coil Voltage:	3VDC
Contact Form:	DPDT (2 Form C)
Contact Rating (Current):	2A
Switching Voltage:	220VDC - Max
Turn On Voltage (Max):	2.25 VDC
Turn Off Voltage (Min):	0.3 VDC
Operate Time:	4ms
Release Time:	4ms
Features:	Sealed - Fully
Mounting Type:	Surface Mount
Termination Style:	Gull Wing

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TXD2SS-3V-X Signal Relays, Up to 2 Amps Application Field and Working Principle

The TXD2SS-3V-X signal relay, a product of the world-famous manufacturer TE Connectivity, is a highly reliable single-pole double-throw (SPDT) relay designed for signal switching applications. It is ideal for switching low-amperage signals, such as small current control, in both the industrial and commercial environment. With an operating voltage range of 3.3 to 30 volts, the TXD2SS-3V-X supports selections of either normally open (NO), or normally closed (NC) signalling contacts. This allows for it to be used as a control switch in many applications, such as those in lighting, microprocessor based systems, and home appliance monitoring systems.

Mechanical Design

The TXD2SS-3V-X signal relay features a robust construction that is comprised of a spray-coated cover, a moulded base, four contact pins, an integrated contact protection circuit, a white/orange colour-coded seal, and a green actuator. Its mounting holes allow for it to be easily installed in several ways, including directly to a PCB, socketed, or in a DIN rail. Being flexible in mounting and dimensionally compact, the TXD2SS-3V-X can be conveniently integrated into control systems where space is limited. In addition, the relay also provides a reach-through feature, which gives easier access to the board-mounted contacts during repairs and maintenance.

Switch Operation

The TXD2SS-3V-X signal relay is activated by a DC voltage signal applied to its control circuit. When the voltage signal reaches a specific value, the relay switches to the appropriate output contact (the NO or NC contact as determined to the configuration of the relay) with a sharp switching action. One beneficial feature of the TXD2SS-3V-X is that it has an integrated contact protection circuit, which prevents it from shorting or welding the contacts due to the presence of static electricity.

Safe operation

To ensure the TXD2SS-3V-X operates safely, it is designed to meet an UL rating of 250VAC and 2 amps. The relay also has a reliable integrated thermal protection circuit, which prevents it from overheating when operated continuously at high voltages or high currents. Additionally, the relay is provided with a vibration and shock-resistant design tested to IEC 60068-2-6 requirements, in order to cope with any industrial environment where vibration or shock is likely to occur.

Conclusion

In summary, due to its flexibility in mounting, its strong construction, its high reliability, its integrated contact protection circuit, and its vibration and shock-resistance, the TXD2SS-3V-X signal relay is an ideal choice for low-amperage signal switching applications. The product is available in a variety of package sizes to suit numerous different power requirements. By offering excellent performance, long operational life, and increased safety, the TXD2SS-3V-X signal relay is a valuable addition to any control system.

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