시리즈 사진: 판매자가 이를 23개의 다른 부품에도 사용하므로 정확히 이 버전을 보여주지 않을 수 있습니다.
Pushbutton Switches LIGHTED PUSH BUTTON
연구 노트
1. What this is
A3PJ-90A11-24EG is an Omron A3 illuminated pushbutton.
2. Part-number decode
- Series: Omron A3
- Type: illuminated pushbutton
- Illuminated: yes
3. Compatibility & ordering
Omron makes industrial command switches (A22 22mm, A16 16mm — unitized, contact in the model code), illuminated pushbuttons/pilot lights (A3, M2), and a widely-used B3 PCB tactile-switch family. Match by size, function (pushbutton/selector/indicator/E-stop), colour, illumination, and contact arrangement, then use the Omron datasheet to confirm the exact colour and voltage encoded in the part number.
4. Data-quality note
The Omron product line/type is identified; the detailed configuration (colour, contact, voltage) is left to the datasheet rather than guessed. Flagged decoded-partial.
5. Sources
- Omron product catalog (omron.com / components.omron.com)
- Distributor listing (DigiKey / Mouser) — search the exact part number
출처
- Omron — A3PJ-90A11-24EG — omron.com
사양 목록
|
Device class
|
illuminated pushbutton
|
|
Enriched by
|
omron-decoder-2026-08-12
|
|
Illuminated
|
true
|
|
Lead time
|
0 Days
|
|
Manufacturer series
|
A3
|
|
Mouser part number
|
653-A3PJ-90A11-24EG
|
|
Pn status
|
decoded-partial
|
|
Rohs status
|
RoHS Compliant
|
|
Series description
|
Omron A3-series illuminated pushbutton (A3P/A3S/A3C/A3A — 16mm round/square lighted pushbutton, LED or lamp; -##E suffix = voltage)
|
설치 빠른 참조
Panel cutout: 22mm. Insert from the front of the panel, secure with mounting nut from behind (tighten to 2-3 Nm).
Contact block: Snap or screw the contact block onto the rear of the button body. Ensure the contact block orientation matches the wiring diagram — NO terminals are usually marked.
Wiring: Use 0.5-2.5mm² stranded wire with ferrules. Tighten screw terminals to 0.8 Nm. Test the button function before energizing the circuit.
외형 치수
문제 해결
Button doesn't respond when pressed
Check the contact block first — it's the most common failure point. Test continuity across the NO or NC terminals with a multimeter. If no click is felt, the return spring in the head may be broken.
Works intermittently
Contact block contacts are pitted or burned. Replace the contact block — don't try to file the contacts. Check if the rated cycle count has been exceeded.
Button feels mushy or doesn't click
The spring return mechanism in the button head is worn. Replace the head. The contact block can usually be reused if it tests OK.
주요 사양
- Device class
- illuminated pushbutton
- Enriched by
- omron-decoder-2026-08-12
- Illuminated
- true
- Lead time
- 0 Days
- Manufacturer series
- A3
