TL378A S-Band TR Limiter TL378A is a broad band primerless TR Limiter designed specifically for use with S-band radars. Consisting of a TR tube and a diode limiter, TL378A is a small, rugged device which protects the mixer diode in the receiver from burning out as a result of RF power coming from itself and other radars. Longer life is expected for TL378A, when used with circulator. --- MAXIMUM RATINGS --Min Transmitter power (peak) ··········· Operating temperature ·············· -30 Ambient temperature ················ -30 Max 100 +80 +90 Unit kW °CW °C Max 3100 1.5 1.5 20 400 2 Unit MHz dB mW mW µs --- ELECTRICAL (Ta=25deg.)--Frequency range ···················· V.S.W.R. (Note 1) ·················· Insertion loss (Note 1,3) ·········· Flat leakage power (Note 2,3) ······ Spike leakage power (Note 2,3) ····· Recovery time (Note 2,3) ··········· Min 3000 - Notes: 1. Measured at power level 0.1 mW CW. 2. Measured at 30kW, 1.0 µs pulse width and 1000 p.p.s. 3. Measured at frequency 3050 MHz.