Communications

LF antenna transponder coils offer high Q & sensitivity

7th February 2014
Staff Reporter
0

Featuring precision tolerances of ±2%, 3% or 5%, the KT11835 and KTZ1030 have been added to KOA Speer's KT series of receiving transponder coils for low frequency antennas.

The KT11835 features inductance at 125kHz between 1mH~12mH, whilst the KTZ1030 features inductance between 1mH~7.6mH. Both models have an operating temperature range between -40°C to 125°C and offer high Q and excellent sensitivity. Due to neither the electrode nor the land pattern disturbing the coil flux, the KT111835 and KTZ1030 transponder coils feature sensitivity up to 75mV/µT in a low frequency of around 125 kHz. The coil series also offers excellent resistance to impact from dropping.

The construction of the coil series arranges the electrode in the long side of the body, which is then covered with molding resin. The KT11835 and KTZ1030 design also features four metal plate electrode terminals, which help ensure a strong PC board fixation, in addition to a strong resistance to vibration, shock and the substrate bend test. Both devices are AEC-Q200 qualified and meet EU RoHS requirements

The coils have been designed for automotive, transportation, agriculture, medical, and consumer markets, in applications such as security systems, RF-ID, animal and other wireless identification, medical engineering, logistics tracking devices, as well as immobilizers, TPMS-systems and keyless entry/start for the auto industry.

 

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