TQ2-L-5V
Overview
The TQ2-L-5V is a high-sensitivity, low-profile signal relay featuring a single-coil latching mechanism and DPDT (2 Form C) contacts. This through-hole component is designed for low-level signal switching up to 1A, making it ideal for telecommunications and instrumentation where power efficiency and space are critical. Its latching design ensures the relay maintains its state without continuous coil power, reducing overall system heat and power consumption.
Why Choose This Part
The primary advantage is the single-coil latching architecture, which requires only a 20mA pulse at 5VDC to toggle states, eliminating holding current. Its compact DIL terminal array (14mm x 9mm) allows for high-density PCB layouts, while the gold-clad silver-alloy contacts provide high contact reliability for signals up to 125VAC or 110VDC.
Applications
Key Specifications
Getting Started
When designing with this latching relay, ensure your driving circuit can reverse the polarity of the pulse to set and reset the single coil. Use a flyback diode or snubber circuit to protect your MCU or driver from inductive spikes during the 3.75VDC operate voltage transition. Since it is a through-hole DIL package, it can be easily prototyped on standard 0.1-inch pitch perforated boards.
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