A-3W-K is a miniature relay designed for signal switching applications with a 2-pole (DPDT) contact arrangement and bifurcated gold overlay silver alloy contacts. The relay operates at a nominal coil voltage of 3 VDC with a coil resistance of 64.3 O (±10%) and nominal power consumption of 140 mW, featuring a must-operate voltage of 2.25 VDC and must-release voltage of 0.3 VDC. It delivers maximum switching current of 2 A and maximum switching voltage of 250 VAC or 220 VDC, with contact ratings of 0.5 A at 125 VAC or 1 A at 30 VDC for resistive loads. The relay exhibits extremely low profile construction with a height of 5 mm and weight of approximately 1.2 g, operates reliably across -40°C to +85°C, and achieves a minimum mechanical life of 1 × 108 operations and electrical life of 2 × 105 operations at 0.5 A 125 VAC. Its plastic sealed enclosure with DIL pitch terminals, UL/CSA recognition, RoHS compliance, and surge strength of 1,500 V make it ideal for compact signal-switching applications in industrial control, telecommunications, and consumer electronics.