Antenna CoilsRX Antenna Coils

  • High reliability conforms to automotive applications.
  • Encapsulated core and winding foranti-shock structure.
  • High sensitivity due to optimized magnetic material and electrode structure.
  • Triaxial LF antenna coil. (SA-X20)
  • Monoaxial LF antenna coil. (SA3M08)
  • Applicable to reflow soldering.
  • RoHS compliant.

1d Rx-LF antenna coil

Appearance & Shape

SA3M08 Type
8.0×3.0×3.0 mm (Typ.)

Features

Features

  • High reliability conforms to automotive applications.
  • Encapsulated core and winding for anti-shock structure.
  • High sensitivity due to optimized magnetic material and electrode structure.
  • Applicable to reflow soldering.
  • AEC-Q200 compliant.

Applications

  • Suitable as a Transponder Antenna Coil for Remote Keyless Entry System. (Vehicle application)
  • Wide operating temperature range: -40°C to +125°C

Packaging Information

Specifications Standard Packing Quantity
330mm Embossed Tape 1500

Product Lineup

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Part Number Inductance [mH] Test Frequency [kHz] Inductance Tolerance [%] Unloaded Q Min.
1143AA-183J=P3 18.0 125 ±5% 35
1143AA-722J=P3 7.2 125 ±5% 30

3d Rx-LF antenna coil

Appearance & Shape

SA-X20 Type
12.0×12.0×3.4 mm(Typ.)

Features

Features

  • High reliability conforms to automotive applications.
  • Encapsulated core and winding for anti-shock structure.
  • High sensitivity due to optimized magnetic material and electrode structure.
  • Triaxial LF antenna coil.
  • Applicable to reflow soldering.
  • AEC-Q200 compliant.

Applications

  • Suitable as a Transponder Antenna Coil for Remote Keyless Entry System. (Vehicle application)
  • Wide operating temperature range: -40°C to +85°C

Packaging Information

Specifications Standard Packing Quantity
330mm Embossed Tape 750

Product Lineup

wipe left or right to change screens View in landscape mode.
Part Number MSA3RBA47A*2 MSA3RBA006*2 MSA3RBA72A*2 MSA3RBA80A*2
X axis Inductance [mH] 4.7 6.3 7.2 8.0
Unloaded Q Min. 18.0 20.0 20.0 20.0
sensitivity*1 [mV/uT]
(mV/A/m)
60.0
(75.0)
70.0
(85.0)
75.0
(95.0)
80.0
(100.0)
Y axis Inductance [mH] 4.7 6.3 7.2 8.0
Unloaded Q Min. 18.0 20.0 20.0 20.0
sensitivity*1 [mV/uT]
(mV/A/m)
60.0
(75.0)
70.0
(85.0)
75.0
(95.0)
80.0
(100.0)
Z axis Inductance [mH] 7.2 9.0 10.6 13.0
Unloaded Q Min. 18.0 18.0 18.0 20.0
sensitivity*1 [mV/uT]
(mV/A/m)
60.0
(75.0)
70.0
(85.0)
75.0
(95.0)
80.0
(100.0)
Test Frequency [kHz] 125.0 125.0 125.0 125.0
Inductance Tolerance [%] ±5% ±5% ±5% ±5%
  • *1Sensitivity values are reference values.
    Also, values in parentheses were calculated based on conversion of magnetic flux density to magnetic field strength.
  • *2Part numbers refer to products that have not yet entered mass production.