G5CA-1A-E-24V G5CA-1A-E-24V 通信继电器 G5CA-1A-E-24VDC G5CA-1A-E-24VDC 通信继电器 G5CA-1A-E-48V G5CA-1A-E-48VDC G5CA1AE5DC G5CA-1AE5DC G5CA-1A-E-5V G5CA-1A-E-5V 其他被动元件