COMPONENTS

100 V Surge Stopper

The LTC4381 low quiescent current surge stopper protects loads from high voltage and high current transients by clamping the gate voltage of an internal MOSFET (with guaranteed safe operating area) to limit the output voltage to a safe, well-regulated value during overvoltage events, allowing loads to sustain continuous operation during such surge events. The LTC4381 replaces traditional shunt circuits—typically composed of bulky inductors, capacitors, transient voltage suppressors and fuses—with a small 7 × 5 mm 32-lead DFN package.

Analog Devices
www.analog.com

Power Divider

The FMDV1053 from Fairview Microwave is a two-way Wilkinson power divider that operates from 350 MHz to 6 GHz. The power divider has an insertion loss of 0.8 dB and provides over 20 dB of isolation. This divider is available in a module that measures 1.89 × 0.79 × 7.64 in. with SMA female connectors and is ideal for use in communication systems, amplifier systems, amplifier power dividing, aerospace/aviation and defense applications.

Fairview Microwave
www.fairviewmicrowave.com

Directional Coupler

KRYTAR Inc., a leader in the design and production of ultra-broadband microwave components and test equipment, announces the expansion of its line of directional couplers with the addition of a new model offering 30 dB of nominal coupling over the frequency range of 26.5 to 40.0 GHz (Ka-Band), in a compact and lightweight package. The new directional coupler lends itself to wireless designs and many test and measurement applications within K-Band. Ka-Band is typically used for commercial and military satellite communications (satcom).

KRYTAR Inc.
www.krytar.com

High Performance Transformer

The MRFXF0835 is a new high performance 75 ohm 1.8 GHz BW balun with 20 dB RL with only 0.5 dB typical insertion loss. Most transformers performance drop at 1.2 or 1.5 GHz but MiniRF has hit the mark out to 1.8 GHz with its new MRFXF0835. Remarkedly, it is also designed to handle large RF signals to minimize any linearity concerns. All of this in the industry standard .150 x .150 S20 package.

MiniRF
www.minirf.com

Capacitors

Traditional high Q low ESR 0505 (0.055” × 0.055”) MLCC’s for UHF/microwave RF power amplifiers, mixers, oscillators, filter networks, low noise amplifiers and timing circuits and delay lines. These capacitors are available in two dielectrics (P90 or NP0); three different terminations: magnetic (100 percent Sn - solder over nickel plating), non-magnetic (100 percent Sn - solder over copper plating) and tin/lead (90 percent Sn 10 percent Pb - solder over nickel plating); and are designed and manufactured to meet the requirements for MIL-PRF-55681 and MIL-PRF-123.

Passive Plus Inc.
www.passiveplus.com