KGEA-WT (33 µH - 500 µH) Uncoated Antennas Keyless go emitter antenna winding heat shrink tube Characteristics This part can offer the possibility to welding directly on PCB or the customer directly over-molded for different applications of readers RF antennas and thus far reducing cost. The emitter antenna is covered by heat shrink tube to avoid handling problems. - High reading distance depending on the different sizes of the ferrites. - Designed for a range of working frequency LF (20kHz, 125kHz and 134,2kHz). - Antenna current. Max. 4 App, Duty 30% - High stability in temperature (-40ºC to +85ºC). Dimensions L=Length ferrite core W=Width ferrite core. H=Height ferrite core. All dimensions are in mm Nomenclature Description Electrical specifications P/N L (mH) KGEAWT680703B0240J 0.240 KGEAWT680703B0322J 0.332 KGEAWT680703B0500J 0.500 KGEAWT680703C0300J 0.300 KGEAWT680703C0426J 0.426 KGEAWT801904B0322J 0.322 KGEAWT801904B0500J 0.500 KGEAWT801904B0345J 0.345 Q >100 >115 >120 >125 >125 >110 >120 >100 SRF (MHz) Ipp máx (Amp)(*) >2.15 2-4 >2.15 2-4 >2.15 2-4 >2.15 2-4 >2.15 2-4 >2.15 2-4 >2.15 2-4 > 2.8 2-4 Freq. (kHz) 125@ 125@ 125@ 134,2@ 134,2@ 125@ 125@ 125@ Tolerance J=5%. This chart is a reference guide for the most common required values at working frequency of 20 kHz, 125 kHz or 134.2 kHz. Any other inductance value at LF or tighter tolerances can be provided. Please contact our sales department for any inquiry. Sensitivity measured with Helmholtz coils H=8.36 App/m @125 kHz. Contact us for measurement specification. 52