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Ultra-Small Size Push Button Switch (Round Body Shape φ10.5) A2A (Part Numbers)
- On Sale Till 31/03/2025
[Features]
· A super-small push button switch with high-performance microswitches.
Japanese Only
Part Number
Configured Part Number is shown.
A2A-4Y
Ultra Small Push Button Switch (Round Body Type ø10.5) A2A Specification
A2A appearance
A2A dimensional diagram
Unit: mm
Note 1. The push button is a plug-in type.
Note 2. Of the dimensions described above, unless otherwise specified, dimensional tolerance for components is ±0.8 mm.
A2A panel cutting dimension
Unit: mm
Note. Please set sheet thickness for installation panel from 1 to 4 mm.
A2A Button Color
- Type A2A-4A: blue
- Type A2A-4B: black
- Type A2A-4G: green
- Type A2A-4R: red
- Type A2A-4W: white
- Type A2A-4Y: yellow
Note. aesthetic nut, lock washer, and push button components are shipped attached to the main body of the switch.
Solder terminal, 1c contact, momentary action.
A2A Performance
| Rated | 125 V AC 5 A (resistance load) 250 V AC 3 A (resistance load) | |
|---|---|---|
| Inrush Current | NC side max. 20 A, NO side max. 10 A | |
| Contact Resistance | 50 mΩ or less (initial value) | |
| Withstand Voltage | Between Same Pole Terminals | 1,000 V AC 50/60 Hz 1 min. |
| Between Charging Metal And Ground, Between Each Terminal And Non-Charging Metal | 1,500 V AC 50/60 Hz 1 min. | |
| Durability | Mechanical | 200,000 times or more |
| Electrical | 200,000 times or more | |
| Ambient Operating Temperature | -25 to +80°C (with no icing and no condensation) | |
| Operating Ambient Humidity | 45 to 85% RH | |
| Protective Structure | IP00 | |
| Class Of Electric Shock Protection | Class II | |
| PTI (Tracking Properties) | 175 | |
| Degree Of Pollution | 3 (IEC947-5-1) | |
Note. The rated values were tested under the conditions below.
(1) Ambient temperature: 20 ±2°C
(2) Ambient humidity 65 ±5% RH
(3) Operating frequency: 20 times/min.
A2A Operating Properties
| Operating properties | Type A2A | ||
|---|---|---|---|
| Force Required For Operation | OF | Max. | 1.47 N |
| Return Force | RF | Min. | 0.10 N |
| Movement Through Actuation | PT | Max. | 0.8 mm |
| Overall Action | TT | Max. | 1.4 mm |
Internal switch used is model D2S-5.
A2A Contact Type
| Name | Contact Type |
|---|---|
| Double-throw (c contact) |  |
| Part Number |
|---|
| A2A-4Y |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Color of Operating Unit |
|---|---|---|---|---|---|
SGD 5.20 SGD 2.60 | 1 Piece(s) | Same day | Yellow |
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Basic Information
| Mounting Hole | φ10.5 | Operating part shape | Round | Type | Non-illumination type push-button |
|---|---|---|---|---|---|
| Operating function | Momentary | Contact Configuration | 1c | Terminal shape | Soldering Terminal |
| Guard included | NA | Panel depth dimensions(mm) | 20.4 | Protection function | NA |
| Operating part dimensions - horizontal(mm) | 13 | Operating part dimensions - vertical(mm) | 13 | Switch rating, AC resistance load 1 | AC125V/5A |
| Switch rating, AC resistance load 2 | AC250V/3A |
Please check the type/dimensions/specifications of the part A2A-4Y in the Ultra-Small Size Push Button Switch (Round Body Shape φ10.5) A2A series.
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Similar Part Numbers
| Part Number |
|---|
| A2A-4A |
| A2A-4B |
| A2A-4G |
| A2A-4R |
| A2A-4W |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Color of Operating Unit |
|---|---|---|---|---|---|
SGD 5.20 | 3 Piece(s) | 4 Day(s) or more | Blue | ||
SGD 5.20 | 1 Piece(s) | Same day | Black | ||
SGD 5.20 | 1 Piece(s) | Same day | Green | ||
SGD 5.20 | 3 Piece(s) | 4 Day(s) or more | Red | ||
SGD 5.20 | 1 Piece(s) | 18 Day(s) | White |
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