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BM1255F-0320-42
1. SPECIFICATION | |||
Electro-Magnetic Buzzer | |||
1 | Dimension | Φ12.0×H5.5 | |
2 | Net Weight | Approx 1.0g | |
3 | Rated Voltage | 3Vo-p | |
4 | Operating Voltage | 2～5 Vo-p | |
5 | Rated Current | Max.70mA ,at 2.048KHz 50% duty Square Wave 3Vo-p | |
6 | Sound Output | Min. 80dB,at 2.048KHz 50% duty Square Wave 3Vo-p | |
7 | Coil Resistance | 16±4Ω | |
8 | Resonant Frequency | 2048Hz | |
9 | Operating Temperature | -20℃～+70℃ | |
10 | Store Temperature | -30℃～+80℃ | |
11 | Pin | L1=5.0±0.5,Φ=0.6±0.1mm | |
Dimensions | Unit: mm | ||
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*Unit: mm; Tolerance: ±0.5mm Except Specified *Housing Material: Black PPO | |||
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2. Reliability Test After any following tests the part shall meet specifications without any degradation in appearance and performance except SPL. SPL shall not deviate more than -10 dB from the initial value 2.1 Ordinary Temperature Life Test The part shall be subjected to 96 hours at 25±10℃. Input rated voltage Resonant frequency, 1/2 duty Square wave. 2.2 High Temperature Test The part shall be capable of with standing a storage temperature of +85℃ for 96 hours. 2.3 Low Temperature Test The part shall be capable of with standing a storage temperature of -40℃ for 96 hours. 2.4 Humidity Test Temperature:+40℃±3℃ Relative Humidity:90%～95% Duration: 48 hours and expose to room temperature for 6 hours 2.5 Temperature Shock Test Temperature:70℃ /1hour→ 25℃/3hours→-30℃/1hour→ 25℃/3hours (1cycle) Total cycle: 10 cycles 2.6 Drop Test Standard Packaging From 1.2m(Drop on hard wood or board of 5cm thick, three sides, six plain.) 2.7 Vibration Test Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axes Note: As this product is not protected from foreign material entering, please make sure that any foreign materials (e.g. magnetic powder, washing solvent, flux, corrosive gas) do not enter this product in your production processes. The functional degradation (e.g. SPL down) may occur if foreign material enter it. | |
3. Electrical And Acoustical Measuring Condition | |
3.1 Recommended Driving Circuit Resonant frequency, 1/2 duty cycle. Square wave.Signal amplitude should be large enough to saturate the transistor.
| 3.2 Recommended Setting
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4. Frequency Response
3Vo-p 50% duty Square wave,10cm 5. Recommended the wave soldering temperature
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