Description
Product Description The 7mm Mini Momentary Push Button Switch (commonly referred to as a mini horn or silence switch) is an ultra-compact, panel-mount Single-Pole Single-Throw (SPST) tactile switch. Designed for quick, on-demand circuit triggering, this switch operates on a Normally Open (NO) momentary mechanism—meaning it stays off by default, completes the electrical circuit only while you physically hold the button down, and instantly snaps back off when released. Constructed with a durable threaded metal or high-grade polymer body, it features a low-profile round colored cap (typically available in red, black, or green) and dual rear pin terminals. Its miniature footprint allows it to be packed densely into tight control arrays or hidden cleanly inside custom enclosures. Key Specifications Mounting Cutout Diameter: 7 mm (≈0.28 inches) Configuration: SPST Normally Open (NO), 2 Pins Operation Type: Momentary / Self-Resetting Electrical Rating: Typically rated up to AC 1A / 250V or AC 3A / 125V (highly popular for low-voltage 5V–12V DC setups) Included Hardware: Hex nut and locking washer for secure panel mounting. Compatibility & Applications As a standardized 7mm electronic component, this miniature button is completely universal. It is compatible with any housing, chassis, or instrument dashboard that features a 7mm circular mounting hole, provided the electrical draw does not exceed its amperage rating. It is widely used for replacements and custom builds in the following fields: 1. Automotive & Marine Accent Controls Horn & Siren Triggers: Widely used as a discreet horn button for motorcycles, classic car restorations, golf carts, and ATVs. Nitrous (NOS) or Purge Triggers: Ideal for racing configurations requiring a precise, instantaneous momentary press. Dashboard Auxiliary Functions: Controls custom windshield washer fluid pumps, garage door opener arrays, or cabin LED light overrides. 2. DIY Electronics & Prototyping Microcontroller Projects: Perfectly compatible with Arduino, Raspberry Pi, and ESP32 development boards as a digital input reset or mode toggle button. Custom Testing Equipment: Serves as a manual pulse generator or calibration trigger on DIY test benches. 3. Audio & Commercial Equipment Alarm & Security Systems: Used as a hidden panic button or manual alarm silence toggle. Intercoms & PA Systems: Functions as a compact push-to-talk (PTT) activator button. Industrial Controls: Fits modular control panels where space is severely limited.
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