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Small Pushbutton Switches
A3D Lighted Pushbutton Switch
Lighted Pushbutton Switch with Cylindrical 18-mm × 8-dia. Body
- Good illumination with even surface brightness.
- Cylindrical body means panel cutouts can be made easily.
- Combines miniature design with excellent operating sensitivity.
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Updated March 23, 2009
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This web page provides an excerpt from a datasheet.
Refer to Datasheetand other applicable documents for more information.
Refer to Datasheetand other applicable documents for more information.
| Appearance | Model |
|---|---|
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A3DJ |
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A3DA |
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A3DT |
Ordering as a Set
The model numbers used to order sets of Units are given in the following table. One set comprises the Pushbutton (LED lamp built-in), and Switch.
| Appearance | Degree of protection | Operation | Model number | Color symbol for Pushbutton |
|---|---|---|---|---|
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IP40 | Momentary | A3DJ-90A1-00E□ | R, Y, G, W |
| Alternate | A3DJ-90B1-00E□ | |||
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Momentary | A3DA-90A1-00E□ | ||
| Alternate | A3DA-90B1-00E□ | |||
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Momentary | A3DT-90A1-00E□ | ||
| Alternate | A3DT-90B1-00E□ |
| Note: | 1. |
Enter the desired color symbol for the Pushbutton in □. |
| 2. | All the above are solder-terminal, microload, SPST-NO, LED lamp-lighted models. |
Pushbutton(All Lighted with LED Built-in)
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|---|---|---|---|---|---|
| Red | A3DJ-500R | A3DA-500R | A3DT-500R | ||
| Yellow | A3DJ-500Y | A3DA-500Y | A3DT-500Y | ||
| Green | A3DJ-500GY | A3DA-500GY | A3DT-500GY | ||
| White | A3DJ-500W | A3DA-500W | A3DT-500W |
Switch
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IP40 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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| SPST-NO | Momentary | Solder terminals | A3DJ-7111 | A3DA-7111 | A3DT-7111 | ||||||
| Alternative | Solder terminals | A3DJ-7121 | A3DA-7121 | A3DT-7121 | |||||||
Ratings
Contact Rating: 30 VDC, 0.1 A (Minimum Applicable Load: 5 VDC, 1 mA)
The above ratings conform to JIS C4505, for testing under the following conditions.
1. Load: Resistive load
2. Mounting conditions: No vibration or shock
3. Ambient temperature: 20 ± 2℃.
4. Operating frequency: 20 times/min.
Built-in LED Lamp
| Item | Color | |||
|---|---|---|---|---|
| Red | Yellow (White) (See note 4.) |
Green | ||
| Forward voltage, VF | Reference value (See note 3.) |
1.7 V | 2.2 V | 2.1 V |
| Maximum value | 2.0 V | 2.5 V | 2.5 V | |
| Forward current, IF | Reference value | 20 mA | 20 mA | 20 mA |
| Absolute maximum value | 50 mA | 50 mA | 50 mA | |
| Permissible dissipation, PD | Absolute maximum value | 100 mW | 125 mW | 122 mW |
| Reverse voltage, VR | Absolute maximum value | 4 V | 4 V | 4 V |
| Note: | 1. |
The above ratings are for an ambient temperature of 25°C. |
| 2. | The built-in LED lamp has no limiting resistor and so it is necessary to connect an external resistor within the range shown in the above table. (For details of calculation formulas, refer to page 28.) | |
| 3. | Refer to the characteristic graphs of VF - IF on page 24. | |
| 4. | The same LED lamp is used for both yellow illumination and white illumination and so the ratings are the same. |
Characteristics
| Operating frequency | Mechanical: 120 operations/minute max. (See note 1.) Electrical: 20 operations/minute max. |
|---|---|
| Insulation resistance | 100 MΩ min. (at 500 VDC) |
| Dielectric strength | 1,000 VAC, 50/60 Hz for 1 minute between terminals of same polarity |
| 2,000 VAC, 50/60 Hz for 1 minute between terminals of different polarity, and between each terminal and ground | |
| 1,000 VAC, 50/60 Hz for 1 minute between lamp terminals (See note 2.) | |
| Vibration resistance | Malfunction: 10 to 55 Hz, 1.5 mm double amplitude (See note 3.) |
| Shock resistance | Destruction: 500 m/s2 Malfunction: 150 m/s2 (See note 3.) |
| Life expectancy | Mechanical: Momentary operation models: 1,000,000 operations min. Alternate operation models: 100,000 operations min. (One operation consists of set and reset operations.) |
| Electrical: 100,000 operations min. | |
| Weight | Approx. 3 g |
| Ambient operating temperature | −10°C to 55°C (with no icing or condensation) |
| Ambient operating humidity | 35% to 85% |
| Ambient storage temperature | −25°C to 65°C |
| Degree of protection | IP40 |
| Electric shock protection class | Class II |
| PTI (proof tracking index) | 175 |
| Pollution degree | 3 (IEC947-5-1) |
| Note: | 1. |
With alternate operation models, 60 operations/minute max. One operation cycle consists of set and reset operations. |
| 2. | The figure for dielectric strength between lamp terminals is for when the LED lamp is not mounted. | |
| 3. | “Malfunction” in the above table indicates malfunctions of less than 1 ms. |
Note: All units are in millimeters unless otherwise indicated.
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| █Terminals Solder Terminals of SPST-NO Lighted Models |
█Panel Cutouts (Top View) | ||||
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