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ELECTRO/MECHANICAL CHARACTERISTICS
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Conductive Technologies switches allow maximum design potential for decorative
surface graphics, incorporated shielding and tactile response requirements.
Tacticle Characteristics
| Dome Type |
Diameter |
Operating Force |
Life Expectancy * |
| td1 |
.350 |
10.5 ± 2oz. |
2,000,000 Minimum |
| td3M |
.440 |
12 ± 2oz. |
2,000,000 Minimum |
| td4L |
.500 |
8 ± 2oz. |
2,000,000 Minimum |
| td4M |
.500 |
12 ± 2oz. |
2,000,000 Minimum |
| td4H |
.500 |
16 ± 2oz. |
2,000,000 Minimum |
Rated current/voltage:
(integral dome)
(non-integral dome) |
10ma @24vdc into resistive load
**100ma @30vdc into resistive load |
| Contact resistance |
MOS,TTL,DTL compatible |
| Breakdown voltage |
Over 250 volts |
Contact bounce:
(integral dome)
(non-integral dome) |
Less than 20 milliseconds
**Less than 5 milliseconds |
| Operating temperature |
-40°F to 150°F |
| Storage temperatures |
-40°F to 150°F |
| Humidity |
0-98% (no condensation) |
| Surface profiles available |
Flat or embossed to spec |
| Panel surface materials available |
See "Materials" |
Other temperature ranges upon request.
* Continuous operation at 220 closures per minute
** 100 ma @ 30vdc construction available with TD3, TD4 |
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HUMAN ENGINEERING
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Positive confirmation of switch function involves sensory feedback. At Conductive Technologies,
this involves the proprietary "Tridome" tactile mechanism. When mounted immediately beneath the
key surface, Tridome provides a firm counterpressure assuring activation. The Conductive
Technologies Tridome is designed for longer life than standard tactile response systems.
Other ergonomic innovations by Conductive Technologies include embossing of key surfaces,
perimeters, logos, legends, and even raised Braille characters to facilitate compliance with
laws for the vision impaired. Additionally, Conductive Technologies switches may be curved to
conform to cabinetry and hinged to provide multi-level arrays and displays.
Non-Tacticle Characteristics
The baseline electrical and mechanical characteristics include:
| Rated Voltage |
3-vdc |
| Rated Current |
100 ma |
| Contact Resistence |
Typically less than 50 ohms
(varies with length of trace) |
| Open Circuit Resistence |
106 ohms |
| Breakdown Voltage To Ground |
100 vdc |
| Contact Bounce |
Less than 10 milliseconds |
| Contact Materials |
Silver to silver |
| Cycles |
10 million @ 20 vdc, 30 ma |
| Actuation Force |
5 oz. to 9 oz. |
| Switch Capacitance |
20 pf |
Temperature
(Storage-Operating) |
-40°C (-40°F) to
+66°C (+150°F) |
| Other temperature ranges are available upon request. |
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