Hui Ke relay HK4 100F-DC 12V-SH brand: Hui Ke model: signal relay series: HK4 100F serial number: HK4 100F-DC 12V-SH overall dimensions (mm):/kloc. 38+0 1.8mm (length× width× height) Weight: 3.5g Contact parameters: contact form: 1C(DPDT) Contact load: 3A/250VAC 3A/ 30VDC Impedance: ≤100Ω Rated current: 3A electrical life: ≥ 07 coil parameters: resistance (10%): 720 Ω withstand voltage: 1000VAC/ 1 min, withstand voltage between contacts: 500VAC/ 1 min.