Medium Power Broadband Surface Mount Pin Diode Limiter
The LM200802-M-A-300 Surface Mount PIN Diode Limiter Module is a surface mount, passive two-stage
power limiter which operates from 20 MHz to 8 GHz. It is manufactured using MACOM's proven
hybrid manufacturing process incorporating silicon NIP and PIN diodes integrated onto a ceramic substrate.
This low profile, compact (8 mm L x 5 mm W x 2.5 mm H), surface mount component offers superior small
and large signal performance. This product is designed to minimize small signal insertion loss for very low
receiver noise figure and high isolation for low flat leakage power for effective receiver protection from
20 MHz to 8 GHz.
The design incorporates a silicon NIP coarse limiter diode and a silicon PIN clean-up stage diode to
provide broad band microwave performance from 20 MHz – 8 GHz. The NIP and PIN diode configuration
eliminates the need to include an RF choke to complete the DC bias return path. The very low thermal
resistance (NIP diode: < 20 ºC/W, PIN diode: < 90 ºC/W, junction to the bottom surface of the package)
enables the limiter to safely and reliably handle RF CW incident power levels of 44 dBm and RF peak incident
power levels of 50 dBm (1 µs RF pulse width, 0.1% duty cycle). The low PIN and NIP diodes’ series
resistances (< 1.5 O) provide low flat leakage power (< 20 dBm) and the thin I layer of the output stage
provides low spike leakage energy (< 0.1 Ergs) for superior LNA protection. No external control signals are
required. This product is RoHS compliant.