KTY sensors and alternatives

KTY temperature sensors are made of doped silicon having a positive temperature coefficient. They have similar platinum measuring resistors an approximately linear characteristic curve.

They are durable and cost-effective solutions for temperature measurement up to 150°C.

For the discontinued KTY83 and KTY84 we have a possible replacement!

The PTC-600 Series and the PTC-1000 Series have almost identical values as the discontinued KTY83 and KTY84 from NXP.

KTY81 Series

  • -55°C...150°C
  • max. Ø 4,8 x 5,2mm
  • SOD70 plastic case
  • Long-term stability
  • Radial design
  • Assembly on request

KTY82 Series

  • -55°C...150°C
  • max. B1,4 x H1,1 x L3,0mm
  • SOZ23 plastic case
  • Long-term stability
  • SMD design
KTY81 SerieKTY82 Serie

PTC Series assembled

  • Alternative to KTY83 & KTY84
  • Winding temperature sensor
  • -40°C to 150°C / 170°C
  • Standard wire: 500mm in AWG 24
  • PVDF shrink tube (Kynar)
  • Customisation


  • Alternative to KTY84
  • -40°C...170°C
  • R25: 618Ω ±1%...±5%
  • DO-35 glass body
  • axial design
  • PU: 500 in Bag
  • PU: 5.000 on tape
  • Assembly on request
KTY84 Ersatz Alternative


  • Alternative to KTY83
  • -40°C...150°C
  • R25: 1000Ω ±1%...±5%
  • DO-35 glass body
  • axiale design
  • VPE: 500 in Bag
  • VPE: 5.000 on tape
  • Assembly on request
KTY84 Ersatz Alternative

α Therm

Alpha Therm GmbH - Your specialist for temperature-limiting

safety components, sensor elements or sensors

Phone: [+49] 6202 / 575688 - 0

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Phone: +49 6202 / 575688 - 0

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