Sprague-Goodman Electronics has introduced a new series of surface mount directional couplers to be used for RF circuitry, mobile radio and satellite TV technologies.
The new series, designated GLSN, provides a selection of coupling values from 6 to 16 dB. The compact design (5,7 x 5,7 x 4,0 mm) uses a dual aperture ferrite core on a ceramic base. Model number GGLSN16D152 is a 16 dB coupler with a maximum loss at 20 MHz of 0,6 dB and 3 dB band limits of 0,5 to 1500 MHz. All models have an operating temperature range of -40 to +125°C.
The couplers are suitable for automatic insertion into circuits assembled using reflow or vapour phase soldering. Terminals are formed from the ends of the coil windings, eliminating solder joints between the coil and the terminals that could open from the heat of circuit assembly. Soldering heat resistance is 230°C for 5 s.
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