The TQ-SMD series 2-pole 5mm surface-mount Signal Relay complies with JIS C0806. By using the highly efficient polar magnetic circuit "seesaw balance mechanism", a nominal operating power of 140mW (minimum operating power of 79mW) has been achieved (4-form-C single side stable type is 280mW). The high-efficiency magnetic circuits ensure low magnetic flux leakage. Because characteristics are little changed by proximity mounting, high-density mounting is possible.