Ningbo Anyo Import & Export Co., Ltd.
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Micro mechanical contact SMD red tact switch 3*6*2.5H 1 pole 1 throw
Electrical specification:
| No. | Item | Test conditions | Requirements |
| 1 | Contact resistance | Applying a static load of 2 times operating force to the center of the stem, measurements shall be made by 5V DC 10mA or more than 1KHZ AC small- current contact resistance meter. | ≤100mΩ |
| 2 | Insulation resistance | Measurement shall be made following application of 100V DC potential, across terminals, and across terminals and cover, for one minute. | ≥100MΩ |
| 3 | Dielectric voltage proof | 250V AC (50HZ or 60HZ) shall be applied across terminals, for one minute. | There should be no breakdown and flashover |
| 4 | Bounce | Lightly striking the center of the stem at a rate encountered in normal use (3 to 4 times per second), and bounce shall be tested at “ON” and “OFF”
| ON-3msec.max OFF-8msec.max |
Mechanical specification:
| Operating force | Placing the switch such that the direction of switch operation is vertical and then gradually increasing the load applied to the center of the stem, the maximum load required for the switch to come to a stop shall be measured. | Operating Force:260±50gf |
| Full travel | Placing the switch such that the direction of switch operation is vertical and then applying static load of 2times operating force to the center of the stem; the travel distance for the switch to come to a stop shall be measured. | 0.25±0.1mm |
| Return force | The sample switch is installed such that the direction of switch operation is vertical and upon depressing the stem in its center to the whole travel distance, the force of the stem to return to its free position shall be measured. | Return Force:50gf min |
| Stop strength | Placing the switch such that the direction of switch operation is vertical, and then a static load of 30N shall be applied in the direction of stem operation for a period of 1 min. | There shall be no sign of damage mechanically and electrically. |
| Stem strength | Placing the switch such that the direction of switch operation is vertical, and then the maximum force to withstand a pull applied opposite to the direction of stem operation shall be measured. | 20N.min. |
| Solderability | Measurements shall be made following the test set forth below: Solder temperature : 245±5°C Immersion time: 2s±0.5s The other steps please refer toTEST 12a | Except for the edge, the coating should cover a minimum 90% |
Environmental specification:
| No. | Item | Test condition | Requirements |
| 1 | Resistance to low temperature | Following the test set forth below the sample shall be left in normal temperature and humidity conditions for 1 h before measurements are made: Temperature : -30±2°C Time: 96h | Contact resistance: ≤200mΩ |
| 2 | Heat resistance | Following the test set forth below the sample shall be left in normal temperature and humidity conditions for 1 h before measurements are made: Temperature : 80±2°C Time: 96h | |
| 3 | Change of temperature | After 5 cycles of following conditions, the sample shall be allowed to stand under normal temperature and humidity conditions for 1 h. and measurements shall be made. During the test water drops shall be removed.
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| 4 | Moisture resistance | Following the test set forth below the sample shall be left in normal temperature and humidity conditions for 1 h before measurements are made: Temperature : 60±2°C Time: 96h | |
| 5 | Sulfuration resistance | Following the test set forth below the sample shall be left in normal temperature and humidity conditions for 1 h before measurements are made: H2S gas concentration: 3ppm±1ppm Time: 72h Temperature: 40±2°C(90~95%RH) | |
| 6 | Salt mist | The switch shall be checked after following test: Temperature: 35°C±2°C Salt solution : 5±1%(solids by mass) Time: 8h±1 hour After test, salt deposit shall be removed by running water. | No remarkable corrosion shall be recognized in metal part. |
Test conditions:
Unless otherwise specified, tests and measurement shall be made in the following standard conditions:
| Normal temperature | 5~35℃ |
| Normal humidity | Relative humidity 25%~85% |
| Normal air pressure | 86~106KPa |
If any doubt arise from the judgment, tests shall be conducted at the following conditions:
| Temperature | 20±2℃ |
| Relative humidity | 65%±5% |
| Air pressure | 86~106KPa |
