Thumb Rotary Switch A7MD
Brand :
OMRON
Caution
Product Description
An ultra compact, rotary operated thumb rotary switch.
[Features]
・ Improved reliability with gold contacts
・ The thumb rotary switch makes it easy to convert to binary, decimal, and hexadecimal codes
・ Circuits and wiring are simplified, and control system reliability and maintainability are improved
Ultra-Small Rotary Switch A7MD Specifications
A7MD external appearance
A7MD dimensional drawing
Units: mm
| Number of Units (n) | Dimension A (n × 5 + 3) | Dimension B (n × 5 + 5) |
|---|---|---|
| 1 | 8 | 10 |
| 2 | 13 | 15 |
| 3 | 18 | 20 |
| 4 | 23 | 25 |
| 5 | 28 | 30 |
| 6 | 33 | 35 |
| 7 | 38 | 40 |
| 8 | 43 | 45 |
| 9 | 48 | 50 |
| 10 | 53 | 55 |
Note 1: The above dimensions include the end caps on both sides.
However, if spare units are added, there will be a 5-mm increase for each.
Note 2: Where not specified, the dimensional tolerance is ±0.4 mm.
The tolerance when multiple units are connected is ±(number of units × 0.4) mm.
Ratings/Performance
| Model | Model A7MD | |
|---|---|---|
| Switching Load Capacity (Resistance Load) | 1 mA to 0.1 A, 3.3 to 28 V DC | |
| Maximum Continuous Electric Current | 1 A or Less | |
| Contact Resistance | 300 mΩ or Less (10 Ω or Less) | |
| Insulation Resistance | Between Terminals of Same Polarity | 10 MΩ or More (with 500 V DC Megohmmeter) |
| Between Earth and Each Terminal | 1,000 MΩ or More (with 500 V DC Megohmmeter) | |
| Withstand Voltage | Between Terminals of Same Polarity | 200 V AC 50/60 Hz 1 min |
| Between Earth and Each Terminal | 1,000 V AC 50/60 Hz 1 min | |
| Vibration | Malfunction | 10 to 55 Hz, Double Amplitude 1.5 mm 2 h |
| Shock / Impact | Malfunction | 490 m/s2 or More |
| Durability | Mechanical | 30,000 Steps or More |
| Electrical | 20,000 Steps or More | |
| Ambient Operating Temperature | -10 to +65°C (Assuming No Freezing) | |
| Operating Ambient Humidity | 45 to 85% RH | |
| Operating Force | 2.94 N or Less | |
Refer to the catalog for other specifications.