1. Compact with high sensitivity The high-efficiency polarized electromagnetic circuits of the 4-gap balanced armature and our exclusive spring alignment method achieves, with high-sensitivity in a small package, a relay that can be directly controlled by a driver chip. 2. Strong resistance to vibration and shock Use of 4G-BA technology realizes strong resistance to vibration and shock. 3. High reliability and long life Our application of 4G-BA technology, along with almost perfectly complete t.