Microswitch SPDT ON-(ON)
- Switches features with: Lever
- Contacts configuration: SPDT
- AC contacts rating (at resistance load): 10 A / 250 VAC
- Switching method: ON-(ON)
- Stable positions number: 1-position
- Sealing: IP40
- Operating temperature: -25...80°C
- Switching torque: 1.6N
- Electrical life: 100000cycles
- Max. contact resistance: 30mΩ
- Min. insulation resistance: 100MΩ
Passive Buzzer Module
Features
1. A passive buzzer that needs square signals of 2k-5k to drive, for it has no built-in oscillating source, and then makes sounds when energized.
2. Use an S8550 PNP transistor for drive.
3. Controllable sound frequency – it can make the buzzer beep like Do, Re, Mi, Fa, Sol, La, Ti.
4. Working voltage: 3 - 5V; PCB size: 2.0 x 2.0 cm.
5. With power light and indicator of digital signal output.
Active Buzzer Module
Features
1. BUILT-IN OSCILLATING SOURCE – Produces sound once connect to power.
2. LOW LEVEL TRIGGER - A single low level can make the buzzer beep.
3. ANTI-REVERSE PORT - Provides a firm connection.
4. INDICATORS - With power light and indicator of digital signal output.
Working voltage: 3 - 5V
SIZE - PCB Size: 2.0 x 2.0 cm
For more info, please refer to http://wiki.sunfounder.cc/index.php?title=Buzzer_modules