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SMT Isolators and Circulators

Surface Mount Technology, SMT Isolators and Circulator are suitable for pick and place and reflow soldering. Devices have been produced in a variety of frequencies from L to X-band for applications which include communications, commercial avionics and large AESA programs using Surface Mount Technology (SMT).

Features & Benefits

The C-band Radalt SMT Isolator opposite has been supplied for over 15 years and is used in a radar altimeter used in more than 50% of the world’s commercial air transport fleet.

This table lists the basic information for a range of typical designs. Electrical specification is dependent on several factors including operating bandwidth, temperature and RF peak power. Please contact the factory for performance data.

Operating Band [GHz] Function Base Package Footprint WDH [mm x mm] Power Handling [W Peak] Notes
1.2 to 1.4 Circulator 25.4 x 25.4 x 7.8 450 This is a “T” configuration device.
1.2 to 1.4 Isolator 25.4 x 31.7 x 7.8 450 Termination rating is specification dependant.
1.2 to 1.4 Duplexer 25.4 x 59.0 x 7.8 450 3 and 4 access port variants available.
2.7 to 3.3 Circulator 19.05 x 19.05 x 6.35 200 A more compact version operating at 40W CW.
2.7 to 3.3 Isolator 19.05 x 25.4 x 6.35 200 Termination rating is specification dependant.
2.7 to 3.3 Duplexer 19.05 x 44.1 x 6.35 200 3 and 4 access port variants available.
2.7 to 3.1 Circulator 19.05 x 19.05 x 6.35 200 This is a “T” configuration device.
2.7 to 3.1 Isolator 19.05 x 25.4 x 6.35 200 Termination rating is specification dependant.
2.7 to 3.1 Duplexer 19.05 x 44.1 x 6.35 200 This is a “T” configuration device.
2.9 to 3.4 Isolator 19.05 x 19.05 x 6.30 200 Termination rating is specification dependant.
2.9 to 3.4 Circulator 19.05 x 25.5 x 6.30 200 This is a “T” configuration device.
2.9 to 3.4 Duplexer 19.05 x 46.5 x 6.30 200 3 and 4 access port variants available.
3.1 to 3.5 Isolator 12.7 x 12.7 x 6.35 200 This is a “T” configuration device.
3.1 to 3.5 Circulator 12.7 x 19.05 x 6.35 200 This is a “T” configuration device.
3.1 to 3.5 Duplexer 12.7 x 25.4 x 6.35 200 3 and 4 access port variants available.
5.2 to 5.9 Circulator 12.7 x 12.7 x 5.1 50 This is a “T” configuration device.
5.2 to 5.9 Isolator 12.7 x 25.4 x 5.1 50 Termination rating is specification dependant.
5.2 to 5.9 Circulator 12.7 x 24.6 x 5.1 50 This is a “T” configuration device.
8.0 to 12.0 Circulator 12.7 x 12.7 x 3.5 50 This is a “T” configuration device.
8.0 to 12.0 Isolator 12.7 x 10.0 x 3.5 50 This is a “T” configuration device.
8.0 to 12.0 Duplexer 12.7 x 16.0 x 3.5 50 Refer to factory for alternative footprints.

Documents & Literature

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