Touch Screen Controllers

Touch screen controllers are data converters which convert user actions on a screen to signals that can be read by a device. These controllers plug into sensors that communicate touch actions electronically, enabling the use of a touch screen device as an input mechanism in place of a mouse or keypad.


What are touch screen controllers used for?

Touch screen controllers are used in ATMs and point of sale equipment as well as in smart technology devices such as tablets, mobile phones, laptops and Kindles. Touch screen controllers are also standard in the manufacturing and engineering industries where display screens act as control panels for machinery and specialised equipment.


Types of touch screen controllers

Touch screen controllers come in two types: capacitive and resistive.


Capacitive touch screen controllers are compatible with screen panels coated with indium tin dioxide. The film coating conducts a constant electrical current across a sensor to pick up on any change in electrical charge when the screen is touched.


Resistive touch screen controllers produce an electrically resistive layer. The changes in resistance on this layer are identified as touch events, which are picked up by the controller for processing of data. 


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Description Price Conversion Rate Resolution Interface Type Sensing Technology Sensing Wire Type Mounting Type Package Type Pin Count Typical Operating Supply Voltage Dimensions Length Width Height Maximum Operating Temperature
RS Stock No. 171-4183
Mfr. Part No.BU21028FV-ME2
BrandROHM
$3.44
Each (In a Pack of 2)
units
- 12 bit Serial-I2C Resistive 4-Wire Surface Mount SSOP 20 3 V 6.5 x 4.4 x 1.15mm 6.5mm 4.4mm 1.15mm +85 °C
RS Stock No. 185-1341
Mfr. Part No.BU21021GUL-E2
BrandROHM
$4.255
Each (In a Pack of 2)
units
- 12 bit - Resistive - Surface Mount VCSP50L2 50 3 V 2.7 x 2.65 x 0.55mm 2.7mm 2.65mm 0.55mm +85 °C
RS Stock No. 185-1355
Mfr. Part No.BU21078FV-E2
BrandROHM
$2.804
Each (In a Pack of 5)
units
- 8 bit - Capacitive 2-Wire Surface Mount SSOP-B 28 3 → 5.5 V 10.35 x 5.6 x 1.15mm 10.35mm 5.6mm 1.15mm +85 °C
RS Stock No. 185-1264
Mfr. Part No.BU21078FV-E2
BrandROHM
$1.711
Each (On a Reel of 2000)
units
- 8 bit - Capacitive 2-Wire Surface Mount SSOP-B 28 3 → 5.5 V 10.35 x 5.6 x 1.15mm 10.35mm 5.6mm 1.15mm +85 °C
RS Stock No. 185-1344
Mfr. Part No.BU21024FV-ME2
BrandROHM
$6.435
Each (In a Pack of 2)
units
- 10 bit - Resistive - Surface Mount SSOP-B 28 3 V 10.35 x 5.6 x 1.15mm 10.35mm 5.6mm 1.15mm +85 °C
RS Stock No. 171-4089
Mfr. Part No.BU21028FV-ME2
BrandROHM
$2.229
Each (On a Reel of 2500)
units
- 12 bit Serial-I2C Resistive 4-Wire Surface Mount SSOP 20 3 V 6.5 x 4.4 x 1.15mm 6.5mm 4.4mm 1.15mm +85 °C
RS Stock No. 171-4180
Mfr. Part No.BU21027MUV-E2
BrandROHM
$3.25
Each (In a Pack of 5)
units
- 12 bit Serial-I2C Resistive 4-Wire Surface Mount VQFN020V4040 20 3 V 4 x 4 x 0.98mm 4mm 4mm 0.98mm +85 °C
RS Stock No. 185-1351
Mfr. Part No.BU21029GUL-E2
BrandROHM
$3.586
Each (In a Pack of 5)
units
- 12 bit - Resistive 2-Wire Surface Mount VCSP50L2 50 3 V 2 x 2 x 0.55mm 2mm 2mm 0.55mm +85 °C
RS Stock No. 185-1260
Mfr. Part No.BU21021GUL-E2
BrandROHM
$5.643
Each (On a Reel of 3000)
units
- 12 bit - Resistive - Surface Mount VCSP50L2 50 3 V 2.7 x 2.65 x 0.55mm 2.7mm 2.65mm 0.55mm +85 °C
RS Stock No. 185-1263
Mfr. Part No.BU21029GUL-E2
BrandROHM
$3.255
Each (On a Reel of 3000)
units
- 12 bit - Resistive 2-Wire Surface Mount VCSP50L2 50 3 V 2 x 2 x 0.55mm 2mm 2mm 0.55mm +85 °C
RS Stock No. 171-4178
Mfr. Part No.BU21025GUL-E2
BrandROHM
$1.806
Each (In a Pack of 5)
units
43.48ksps 12 bit Serial-I2C Resistive 4-Wire Surface Mount VCSP50L2 12 3 V 2 x 1.5 x 0.45mm 2mm 1.5mm 0.45mm +85 °C
RS Stock No. 171-4175
Mfr. Part No.BU21023MUV-E2
BrandROHM
$6.085
Each (In a Pack of 2)
units
- 10 bit - Resistive 4-Wire Surface Mount VQFN028V5050 28 3 V 5 x 5 x 0.98mm 5mm 5mm 0.98mm +85 °C
RS Stock No. 171-4088
Mfr. Part No.BU21027MUV-E2
BrandROHM
$2.107
Each (On a Reel of 2500)
units
- 12 bit Serial-I2C Resistive 4-Wire Surface Mount VQFN020V4040 20 3 V 4 x 4 x 0.98mm 4mm 4mm 0.98mm +85 °C
RS Stock No. 185-1347
Mfr. Part No.BU21026MUV-E2
BrandROHM
$2.006
Each (In a Pack of 5)
units
- 12 bit - Resistive 2-Wire Surface Mount VQFN020V4040 20 3 V 4 x 4 x 1mm 4mm 4mm 1mm +85 °C
RS Stock No. 178-5769
Mfr. Part No.BU21029MUV-E2
BrandROHM
$3.61
Each (In a Pack of 5)
units
- 12 bit - Resistive 4-Wire Surface Mount VQFN 20 3 V 4 x 4 x 0.98mm 4mm 4mm 0.98mm +85 °C
RS Stock No. 185-1262
Mfr. Part No.BU21026MUV-E2
BrandROHM
$1.053
Each (On a Reel of 2500)
units
- 12 bit - Resistive 2-Wire Surface Mount VQFN020V4040 20 3 V 4 x 4 x 1mm 4mm 4mm 1mm +85 °C
RS Stock No. 171-4087
Mfr. Part No.BU21025GUL-E2
BrandROHM
$1.023
Each (On a Reel of 3000)
units
43.48ksps 12 bit Serial-I2C Resistive 4-Wire Surface Mount VCSP50L2 12 3 V 2 x 1.5 x 0.45mm 2mm 1.5mm 0.45mm +85 °C
RS Stock No. 171-4086
Mfr. Part No.BU21023MUV-E2
BrandROHM
$4.588
Each (On a Reel of 2500)
units
- 10 bit - Resistive 4-Wire Surface Mount VQFN028V5050 28 3 V 5 x 5 x 0.98mm 5mm 5mm 0.98mm +85 °C
RS Stock No. 178-5644
Mfr. Part No.BU21029MUV-E2
BrandROHM
$2.11
Each (On a Reel of 2500)
units
- 12 bit - Resistive 4-Wire Surface Mount VQFN 20 3 V 4 x 4 x 0.98mm 4mm 4mm 0.98mm +85 °C
RS Stock No. 185-1261
Mfr. Part No.BU21024FV-ME2
BrandROHM
$3.947
Each (On a Reel of 2000)
units
- 10 bit - Resistive - Surface Mount SSOP-B 28 3 V 10.35 x 5.6 x 1.15mm 10.35mm 5.6mm 1.15mm +85 °C