Teledyne Introduces High Power PIN Diode Limiter Modules for EW and Radar Applications

Teledyne e2v HiRel has announced a new addition to its family of high power limiters for electronic warfare and radar applications. The TDLM202402 is a quasi-active S-band SMT PIN Diode Limiter that offers “always on” high power CW and peak protection.

The limiter has 50 dBm (100 W) CW power handling capability and 60 dBm (1,000 W) peak power from 2 to 4 GHz (25 µsec pulse width at 5% duty cycle). Parts are screened and qualified for high-reliability applications. It boasts excellent thermal management features, with a proprietary design methodology that minimizes thermal resistance from the PIN Diode junction-to-base plate (RTHJ-A). The limiter design employs a two-stage detector circuit which enables ultra-fast turn-on of the high-power PIN Diodes. 

The new limiter is available in a small 8 x 5 mm package and utilizes proven hybrid assembly technology.  It has an operating temperature range of -65 °C to 125 °C.

This is Teledyne e2v HiRel’s first high power limiter for military applications. The company supports Source Controlled Drawings, and devices are tested and shipped from their certified facility in Milpitas, California, one of the industry’s most trusted production locations. More such products are currently under development.

The TDLM202402 is designed for optimal small-signal insertion loss, permitting an extremely low receiver noise figure while simultaneously offering excellent large input signal. 

Other key features and Specifications Include:
  • Low insertion loss (typ): 0.5 dB
  • Return loss (typ): 17 dB
  • Low flat leakage power (typ): 14 dBm
  • Low spike energy leakage (typ): 0.5 ergs
  • Input/Output DC blocking capacitors
  • RoHS compliant

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