Electro-Magnetic Sound Generators HCM18 Series 8.0 ø0.6 Sound Port 6.5 18.0 Masking Label 14.0 10.5 dB Epoxy Resin 6.0 90 80 Dimension 70 Unit : mm Tolerance : ±0.3mm 60 JL World 500 1K 2K 3K 5K Hz 10K Frequency Response Applied Voltage : 24V, 50% Duty Square Wave Measuring Distance : 10cm Specification (all data taken at 25°C unless otherwise specified) Model HCM1801 HCM1806 HCM1812 HCM1824 Rated Voltage (V) Operating Voltage (V) 1.5 6 12 24 1~2 3 ~ 10 6 ~ 15 22 ~ 26 HRated Current (mA) £ 50 Coil Resistance (W) HSound Output at 10cm (dB) Rated Frequency (Hz) Operating Temperature (°C) Storage Temperature (°C) Weight (g) 14 ± 9 60 ± 9 120 ± 18 380 ± 30 ³ 80 ³ 85 ³ 85 ³ 85 2000 ~ 2500 -30 ~ +85 -40 ~ +85 4 H Value Applying Rated Voltage, Rated Frequency, 50% Duty Square Wave www.jlworld.com