RS PRO Piezo Buzzer 3-25Vp-p, 70dB
RS Stock No.: 0102773
Brand: RS PRO
Features
- Piezo buzzer
- With PCB pins
- High operating temperature
- Operating Voltage Range: 3-25Vp-p
- Rated Voltage: 3Vp-p
- Sound Output: Greater than or equal to 70dB
- Requires additional circuitry to generate sound
- Diameter: 17mm
- Height: 8.6mm
Product Description
A continuous tone, piezo buzzer. It has an operating temperature of up to 105°C, making it highly suited to applications with higher temperatures such as air conditioners, humidifiers, steamers, etc. It is a small and low profile device, with a voltage range from 3-25Vp-p. It requires additional circuitry to generate sound.
Applications:
- Access & security
- Medical
- Home appliances
- Toys & games
- Consumer electronics
- Timers
- Load monitors & pressure gauges
- Agricultural system monitoring
- Alarms within automotive applications (e.g., seat belt, tyre pressure, temperature warnings)
- Sensing & instrumentation
- Communications equipment
- Remote monitoring systems
- Safety products
Electrical and Acoustical Specifications
| Item | Unit | Specifications |
|---|---|---|
| 1-1 Rated Voltage (Square Wave) | Vp-p | 3 |
| 1-2 Operating Voltage | Vp-p | 3-25 |
| 1-3 Rated Current (Max) | mA | 5 |
| 1-4 Min Sound Output at 2.0kHz/10cm | dB | 70 |
| 1-5 Resonant Frequency | Hz | 2000 |
| 1-6 Capacitance at 120Hz | pF | 25000 ± 30% |
| 1-7 Operating Temperature | °C | -40 to +105 |
| 1-8 Storage Temperature | °C | -40 to +105 |
| 1-9 Weight | g | 1 |
| 1-10 Housing Material | Black PBT | |
| 1-11 Lead Pin Material | Phosphor Bronze (DSn) | |
| 1-12 Tone Nature | Single |
* Value applying at Rated Voltage (resonant frequency, 1/2 duty, square wave). Requires additional electronic circuitry to operate as a sounder.
Environmental Tests
| Test Item | Specifications |
|---|---|
| 2-1 Storage in High temp. | Storage in +105℃ ± 2℃ test box for 96 hours, then expose to the room temperature for 2 hours without applying power. |
| 2-2 Storage in Low temp. | Storage in -40℃ ± 2℃ test box for 96 hours, then expose to the room temperature for 2 hours without applying power. |
| 2-3 Storage in Humidity | Storage in +40℃ ± 2℃ 90-95%RH test box for 96 hours, then expose to the room temperature for 2 hours without applying power. |
| 2-4 Thermal cycle test |
Test cycle: -40°C for 30 minutes, transition to +20°C (15 minutes), +105°C for 30 minutes, transition to +20°C (15 minutes). Procedure: Perform 5 cycles without applying power, then expose to room temperature for 2 hours. |
| 2-5 Vibration test |
Amplitude: 1.5mm. Test for directions X, Y, Z for 2 hours each (total 6 hours). Frequency range: 10 Hz to 55 Hz. (Diagram description: A graph showing amplitude vs. frequency, with points at 10Hz (0.3g) and 55Hz (9.3g), indicating amplitude of 1.5mm.) |
| 2-6 Drop test | Free drop a unit from a height of 70cm onto a 10mm thick board, in three directions (X, Y, Z). |
| 2-7 Solderability test | Soldering temperature: 260 ± 5℃. Heat applying time: 3 ± 0.5 seconds. |
PASS CRITERION: After these tests, the change of Sound Pressure Level (S.P.L) shall be within ±5dB.
Measuring Method (Buzzer Mode)
3-1. Test Condition
3-1-1. STANDARD
- Temperature: 25 ± 3℃
- Relative humidity: 60% ~ 70%
- Atmospheric pressure: 860mbar to 1060mbar
3-1-2. JUDGEMENT
- Temperature: 15 ~ 35℃
- Relative humidity: 45% ~ 85%
- Atmospheric pressure: 860mbar to 1060mbar
3-2. Standard Test Fixture
- 3-2-1. Rated Voltage (Square wave): 3V
- 3-2-2. Resonant Frequency: 2000Hz
(Diagram description: A test setup showing a Sound Level Meter positioned 10cm from the product, connected to a Functional Signal Generator. The setup includes measurements of 40cm distance.)
Dimensions
Unless otherwise specified, tolerance: ±0.5 (unit: mm)
(Diagram description: Top view of the buzzer showing dimensions: outer diameter approximately 17mm (indicated by 2-Ø4.1 and 2-Ø1.3 measurements related to internal features), height 8.6mm, and other internal feature dimensions like 1.2mm, 0.8mm, 3.0mm. A cross-section view (A-A') details these internal dimensions. Another view shows a diameter of Ø2.5. An internal component view shows parts labeled 1, 2, 3, 4.)
Notes:
- 1) All parts must meet ROHS requirements.
- 2) Wave soldering is allowed; washing is not allowed after soldering.
Component Breakdown:
| Part No. | Part Name | Q'TY | Material | Remark |
|---|---|---|---|---|
| 4 | Cover | 1 | Black PBT | |
| 3 | Housing | 1 | Black PBT | |
| 2 | Pin | 2 | Phosphor Bronze (DSn) | |
| 1 | Piezo element | 1 | Brass |
