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How It Works Shipping Fee Terms of Use

Model HTF-☐ Ultra-small electrostatic-capacity touch sensor

Application

  • Touch switch for door knobs
  • Elevator switch
  • Touch switch for automatic doors
  • Touch switch for security purpose
  • Seat sensor
  • Input switch for electric devices
  • Input sensor of amusement equipment

Features

  • Ultra-small touch sensor easy to install in small places.
  • Open collector output type that can directly output to MCU or other integrated circuits without the need for a specific interface circuit.
  • Does not operate by mistake when touched by an object with small electrostatic capacity such as plastic objects or bags. No need for a potentiometer to set the sensitivity.
  • An internal circuit protects the sensor from human static electricity. No need for external protection.
  • Equipped with a contact terminal for the touch electrode. The connection is easy and requires only a screw to set the touch electrode.

International Standards

  • Our products do not have overseas safety regulations such as CE mark, UL standard, EN standard etc.
  • Products is compliant to the RoHS directive.

Rating and performance

Rating and performance

Model name HTF-3 HTF-4 HTF-5 HTF-31 HTF-41 HTF-51
Operating sensitivity 30 pF
±6 pF
40 pF
±8 pF
50 pF
±10 pF
30 pF
±6 pF
40 pF
±8 pF
50 pF
±10 pF
Power supply voltage 5 V to 12 V DC (Operating voltage range: 4.5 V to 14 V DC)
Power consumption With DC 5 V: DC 4 mA or less, with DC 12 V: DC 15 mA or less
Output DC 14 V DC 50 mA or less NPN transistor open collector
Maximum output
saturation voltage
DC 1 V or less (load current DC50 mA)
Operation configuration Normally open
(On output when touch is detected)
Normally closed
(Off output when touch is detected)
Operating temperature
range
-20 to 60 °C (-25 to 65 °C during storage)(without condensation or frost.)
Operating humidity
range
35 to 85% RH (25 to 85% RH during storage)
Static electricity
resistance
±20 kV between the contact terminal and GND
(20 times at 1 s interval, 150 pF, 330 Ω)
Withstand voltage 1 min at AC 500 V 50/60 Hz (between the live part and case)
Insulation resistance 20 MΩ or more measured with an ohmmeter at DC 500 V
(between the live part and case)
Vibration resistance Durability: 2 hours in each X, Y, Z direction at 10 to 55 Hz and with peak-to-peak amplitude of 1.5 mm (at power off)
Shock resistance Durability: 3 times at 500 m/s² (approx. 50 G) in each X, Y, Z direction
(at power off)
Protection rating IP50
Case material PBT reinforced with glass-fiber(Black) PBT reinforced with glass-fiber(Gray)
Connector Connector: S3B-ZR-SM4A-TF (3-pin), housing: ZHR-3, contact: SZH-002T-P0.5
(from J.S.T. Mfg. Co., Ltd.)
Weight Approx. 1 g
Options
(sold separately)
Connector harness : CNH-ZHR03S28-300

*For a detailed specification of the other, please refer to specifications.

External dimensions diagram / Output circuit

External dimensions diagram

HTF_External_dimensions_diagram.gif

Connector harness (sold separately)

CNH-ZHR03S28-300_EN.gif

Output circuit

HTF_Output_circuit.gif

Usage precautions

  • The touch (detection) electrode of the touch sensor is connected to the detection circuit. Therefore, it is necessary to ensure sufficient withstand voltage and insulation between the touch sensor power supply and the AC power supply to ensure safety.
  • If the sensor is used near a broadcasting station with high output, or if there is strong common-mode noise in the DC power supply because it is also used for a large inverter-fed device, install a capacitor of 0.1 μF or more to the 0 V line to remove the noise to the FG terminal.
  • A high-frequency oscillation circuit is used in the touch sensor. Therefore, if several sensors get close or if the same person touches the touch electrodes of several touch sensors at the same time, the detection operation may malfunction due to reciprocal interference. It is recommended to consult with our company since the interference depends on the position and wiring of the touch sensors and the sensor electrodes.
  • See Touch sensor general usage precautions for other precautions.

 

*After you have put an item in your shopping cart, choose either [Quote] or [Order].
*For customized products or specifications, contact us using "Inquiry."
*Choose the currency from JPY, USD, or EUR.

Model Name Operating sensitivity and output configuration Frequency Standard Price Inventory Type Select
HTF-3 30 pF and normally open Normal type
670 JPY
7 USD
6 EUR
BTO
HTF-3B 30 pF and normally open Different frequency type
670 JPY
7 USD
6 EUR
BTO
HTF-4 40 pF and normally open Normal type
670 JPY
7 USD
6 EUR
STD
HTF-4B 40 pF and normally open Different frequency type
670 JPY
7 USD
6 EUR
STD
HTF-5 50 pF and normally open Normal type
670 JPY
7 USD
6 EUR
BTO
HTF-5B 50 pF and normally open Different frequency type
670 JPY
7 USD
6 EUR
BTO
HTF-31 30 pF and normally closed Normal type
670 JPY
7 USD
6 EUR
BTO
HTF-31B 30 pF and normally closed Different frequency type
670 JPY
7 USD
6 EUR
BTO
HTF-41 40 pF and normally closed Normal type
670 JPY
7 USD
6 EUR
BTO
HTF-41B 40 pF and normally closed Different frequency type
670 JPY
7 USD
6 EUR
BTO
HTF-51 50 pF and normally closed Normal type
670 JPY
7 USD
6 EUR
BTO
HTF-51B 50 pF and normally closed Different frequency type
670 JPY
7 USD
6 EUR
BTO

STD Shipping is available immediately (on the day of order)

WIP Shipping is available within 1 to 3 weeks

BTO Shipping is available within 4 to 10 weeks

NOTE: The above information shows the typical delivery time. For actual delivery time, please confirm us as it depends on our business days and/or product quantities.

In the case of the quote request and order, please be sure to check the Terms and Conditions.
If you have made the procedure of quote request and order, it assumes that agree to the Terms and Conditions.

Quantity:
pieces
  • 85 JPY
    1 USD
    1 EUR

To confirm the Request a quote / Order Cart

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