IESF-R-5 Pressure Sensor


9.95 USD
$9.95 ea.

The IESF-R-5 Pressure Sensor is a variable resistance sensor where the output resistance is proportional to the force applied to the bulb.

Description [Hide]

The IESF-R-5 force sensor outputs a varying resistance that is proportional to the force applied to the black button at the end of the device. The resistance can then used to estimate force (or weight).

  • Compact device (10 x 68 mm)
  • Up to 4 Kg of force
  • High resistance (>500K) unloaded
  • Low resistance (~500 Ohms) at max load
  • Easy to use

How it works

The IESF features a special rubber membrane which deflects under pressure. The membrane makes contact with a ceramic plate with resistive traces on it. As the force increases, the membrane contacts more of the resistive traces area and the output resistance drops.

A simple circuit consisting of the IESF-5-R, a 1K Ohm resistor, and an LED in series serves to demonstrate the sensors' functionality. When powered with +5VDC the LED will glow more brightly as the force on the sensor is increased.


The IESP-12 is designed for intermittent use. That is, the application of force should be temporary. Applying force for long periods can permanently damage the membrane and alter the characteristics of the device -particularly at higher force levels.


Digital scale, variable-force pushbutton, contact sensor, robotics....


  • Size: 10 x 68mm
  • Supply Voltage: 3 - 6 Volts DC (Max. 30 VDC)
  • Current: 5mA (Max. 20 mA)
  • Rated Force: 1.5 Kgf (Max 4Kgf)
  • Life: >100,000 cycles at rated force (1 sec ON, 3 sec OFF)
  • Operating Temp: +10° C to +40 ° C
  • Storage Temp: -40° C to +70° C
  • Humidity: 85% RH, Non condensing

You Might Also Like [Hide]


5mm Water-clear Phototransistor

This 5mm Water-clear Phototransistor will pick up visible and infrared light and conduct current. When light reaches this high sensitive/fast response time component it's much like current reaching the base of a transistor which allows current to flow from collector to emitter.

$0.45 USD


Resistor Bundle Set 1: 100ohm, 470ohm, 1k, 2.2k

10 resistors each of 100ohm, 470ohm, 1k, and 2.2k

$2.20 USD


Parallax PIR Motion Sensor (Rev B)

Check out this awesome PIR Motion Sensor, complete with infrared goodness!

$12.99 USD


Teensy Prop Shield LC

The Prop Shield LC is the stripped-down version of the Teensy Prop Sensor Shield (motion sensors removed)

$10.00 USD


Grove - Loudness Sensor

Detect sound with this well-engineered Grove loudness sensor.

$6.40 USD


Grove - HCHO Sensor

The Grove HCHO sensor is a Volatile Organic Compound detector, able to detect down to 1 PPM.

$16.10 USD


Grove - Tilt Switch

Super simple - it's a ball in a tube that plugs into the Grove system to detect tilt.

$2.05 USD


CR2025/CR2032 Coincell Battery Holder

Here's a coin cell holder for mounting the most common types of coin cell batteries: CR2032 and CR2025. You could try other batteries but we're guessing you won't have much luck with 'AA's.

$0.49 USD


5V RGB Addressable Serpentine Stripxel (48/M, 2.5M spool)

Here's an addressable RGB strip with a kink - literally! Snake that strip around using the special S-curve PCB.

$49.95 USD


Grove - I2C Color Sensor

I2C Color Sensor based on the TCS3414CS.

$21.50 USD





Remember Me

Forgot Your Password?

Don't Have an Account?
Sign Up!