Technical Information Rev.3 M1555 S-Band Magnetron M1555 is designed for the magnetron of S-band radar system. The frequency range is fixed <3040∼3060MHz> and the peak output power is 30kW. ── MAXIMUM RATINGS ── Min Max Unit Peak anode current ······················ 6.0 12 A Peak anode power input ·················· - 100 kW Duty cycle ······························ - 0.001 - Pulse duration ·························· 0.07 1.0 μs Rate of rise of voltage pulse ··········· - 85 kV/μs Anode temperature ······················ - 120 ℃ V.S.W.R at the output coupler ··········· - 1.5:1 - ── ELECTRICAL ── Min Typical Max Unit Heater voltage (Note 1) ·············· 5.7 6.3 6.9 V Preheat time ························· 180 - - S Peak anode voltage (Note 2) ·········· 7.2 8.0 8.5 kV Peak output power (Note 2) ··········· 25 30 - kW Frequency (Note 2) ··················· 3040 3043 3060 MHz 1. Note 1: With no anode input power. For average pulse input powers greater than 25 watts, the heater voltage must be reduced within 3 seconds after the application of h.t. according to the following schedule: Mean input power(W) Heater Voltage(V) Less than 25 6.3 25 to 62 5.3 62 to 100 4.5 Note 2: Measured at peak anode current 8.0A 1-1,Fukuoka 2-chome, Fujimino-city Saitama-prefecture 356-8510 Japan Phone:049-278-1298 Fax :049-278-1419 Technical Information Rev.3 1-1,Fukuoka 2-chome, Fujimino-city Saitama-prefecture 356-8510 Japan Phone:049-278-1298 Fax :049-278-1419