Antenna < Transponder: RF-ID ( TX ) > Type: AS705A ◆ Product Description ＊70.5×13.9mm Max(L×W),5.3mm Max. Height. ＊ Operating Temperature: -40℃ ~ +85℃. ◆ Feature ＊ LF Transmitter antenna. ＊ Small size installation space can be saved. ＊ Match for TI & NXP IC, resonant frequency be pre-set to 125kHz,134kHz or customization. ＊ Meeting protection against water degree IPX4K of ISO20653 by adding water-proof part. ＊ Ideally used in keyless smart entry system. ＊ Over molding, with/ without harness and connector. ＊ RoHS Compliance. ◆ Mechanical dimensions ( unit: mm ) 3. 0 ± 5. 21 70.0±0.5 3 . 0 ± 6 . 3 1 Manufacture Date Manufacture Year & Month Please refer to the sales offices on our website for a representative near you www.sumida.com 1/2 Antenna < Transponder: RF-ID ( TX ) > Type: AS705A ◆ Schematic diagram c ② L: Ferrite core coil inductance. C: Tuning internal capacitor. L R ① R: Copper resistance. ◆ Electrical Characteristics Part number Tuning capacitance Load Q Resonant frequency 125.0 1.5kHz AS705 -125A 332 60.1 AS705-125B 472 52.1 AS705-125C 682 41.7 AS705-125D 822 30.5 AS705-125E 103 26.3 AS705 -134A 332 65.2 AS705-134B 472 63.8 AS705-134C 682 36.3 AS705-134D 822 30.5 AS705-134E 103 25.8 AS705-20K 334 3.26 ± 125.0±1.5kHz 125.0±1.5kHz 125.0±1.5kHz 125.0±1.5kHz 134.2±1.5kHz 134.2±1.5kHz 134.2±1.5kHz 134.2±1.5kHz 134.2±1.5kHz 20±1.5kHz Resonant current 1.2App 2.5App 2.8App 2.4App 2.6App 1.2App 2.5App 2.9App 2.5App 2.6App 2.2App Load resistance Ω 2.2Ω 2.2Ω 3.3Ω 3.3Ω 4.7Ω 2.2Ω 2.2Ω 3.3Ω 3.3Ω 3.3Ω 4.7 ＊ It is possible for customer specification at harness length and connector form. ＊ It is possible for other frequency. ◆ Packaging specification ＊ Using plastic tray packaging. ＊ Outside carton dimension: 500mm X 300mm X 175mm. ＊ Packaging Q’ty: 120pcs/carton. Please refer to the sales offices on our website for a representative near you www.sumida.com 2/2