BUZZER & SPEAKER

OBO Pro.2 buzzers and speakers for acoustic signalling, alarms and sound reproduction in electronic and industrial applications. The range includes piezoelectric buzzers, SMD buzzers, magnetic transducers and Mylar speakers, available in different sizes, frequencies, power ratings and configurations, with built-in driver or external drive options. OBO Pro.2 buzzers and speakers available from Believe Srl, for industrial, medical, automotive, security and home appliance applications.

Obo Pro.2

Buzzer -> SMD Piezo Buzzer

Image Code Frequenza [Hz] Tono dB Voltage[V] Dimension [mm;mt]
tlArVZddSI8N6HH OBO-13240ST

4.0kHz
|
-
|
80
|
9V
|
13x13x2.5mm

 4.0kHz - 80 9V 13x13x2.5mm Buzzer SMD Square 80db Min. At 4Khz-9Vp-p Square Wave/10cm 13x2.5mm
OBO-14240ST

4.0kHz
|
-
|
80
|
9V
|
14x14x4.8mm

 4.0kHz - 80 9V 14x14x4.8mm Buzzer SMD 80db min. at 4Khz/9Vp-p Square Wave/10cm 14x14mm Without Driver
CtosRH1UXnx0s2o OBO-17240STB

4.0kHz
|
-
|
82
|
9V
|
Ø17x5mm

 4.0kHz - 82 9V Ø17x5mm Buzzer SMD Square 82db min. at 4Khz/9Vp-p Square Wave/10cm 17x5mm

Buzzer -> Piezoelectric Buzzer -> Drive Circuit Built-in Type

Image Code Frequenza [Hz] Tono dB Voltage[V] Dimension [mm;mt]
ejxTXaFTv5L6T0D OBO-15210

4.4kHz
|
Single
|
85
|
3 - 15V
|
Ø13.8mm

 4.4kHz Single 85 3 - 15V Ø13.8mm Buzzer Ø13.8x8.2mm 85db Min. At 4.4±0.5Khz-DC 9V with Driver Wp
xJXJtTTkoc9siE2 OBO-20335

3.4kHz
|
-
|
83
|
3 - 27V
|
Ø23,7x11mm

 3.4kHz - 83 3 - 27V Ø23,7x11mm BUZZER Ø23,7x11mm WITHOUT DRIVER
hxCZUsESwe7jk92 OBO-27P2

3.4kHz
|
Pulse
|
87
|
5 - 20V
|
Ø30x15.5mm

 3.4kHz Pulse 87 5 - 20V Ø30x15.5mm Buzzer ø30x15.5mm 87db min. at 3.4±0.5Khz/DC 9V with Driver P=15mm
BZFVPiOgVpgjoPJ OBO-35D1

3~3,4Khz
|
Dual
|
97
|
5 - 20V
|
Ø42x16mm

 3~3,4Khz Dual 97 5 - 20V Ø42x16mm Buzzer Ø50x16mm 97db min. at 2.9/3.05Khz/DC 9V with Driver Wire (dual Tone)
qHJTxVmAODKb69K OBO-20C1-15

3.4kHz
|
Continuous
|
90
|
3 - 15V
|
Ø24.5x12mm

 3.4kHz Continuous 90 3 - 15V Ø24.5x12mm Buzzer Ø24.5x12mm 90db Min. At 3.4±0.5Khz-DC 9V with Driver
OBO-27C8

3.5kHz
|
Continuous
|
87
|
3 - 30V
|
Ø30x15.5mm

 3.5kHz Continuous 87 3 - 30V Ø30x15.5mm Buzzer Ø30x15.5mm 87db Min. At 3.5±0.5Khz-DC 9V with Driver
ythTljGVmsAliKB OBO-20C4

3.8kHz
|
Continuous
|
83
|
3 - 30V
|
Ø24x14mm

 3.8kHz Continuous 83 3 - 30V Ø24x14mm Buzzer Ø24x14mm 83db Min. At 3.8±0.5Khz-DC 9V with Driver
DqxpQ48HCr8Ug8A OBO-20C5

3.8kHz
|
Continuous
|
83
|
3 - 30V
|
Ø24x9.5mm

 3.8kHz Continuous 83 3 - 30V Ø24x9.5mm Buzzer Ø24x9.5mm 80db Min. At 3.4±0.5Khz-DC 9V with Driver
eLTwYst93HLSBK0 OBO-35C2

2.8kHz
|
Continuous
|
97
|
3 - 20V
|
Ø42x16mm

 2.8kHz Continuous 97 3 - 20V Ø42x16mm Buzzer Ø42x16mm 97db Min. At 2.8±0.5Khz-DC 9V with Driver Wire

Buzzer -> Piezoelectric Buzzer -> With External Drive

Buzzer piezoelettrico con oscillatore esterno

Image Code Frequenza [Hz] Tono dB Voltage[V] Dimension [mm;mt]
xLvTKV4gJGhjyuL OBO-11250PA

5.0kHz
|
-
|
80
|
9V
|
Ø10.5x8mm

 5.0kHz - 80 9V Ø10.5x8mm Buzzer 80db at 5.0Khz/ 9Vp-p Square Wave ø10.5x4mm Without Driver
OBO-11250PB

5.0kHz
|
-
|
80
|
9V
|
Ø10.5x4mm

 5.0kHz - 80 9V Ø10.5x4mm Piezo Buzzer 80db at 5.0Khz/ 9Vp-p Square Wave ø10.5x4mm Without Driver
GEsmpCfb7KNpXbQ OBO-14240PA

4.0kHz
|
-
|
80
|
9V
|
Ø14x7.5mm

 4.0kHz - 80 9V Ø14x7.5mm Buzzer 80db at 4.0Khz/ 9Vp-p Square Wave ø14x7.5mm Without Driver
OBO-14240PC

4.0kHz
|
-
|
80
|
9V
|
Ø14x7.5mm

 4.0kHz - 80 9V Ø14x7.5mm Buzzer 80db at 4.0Khz/ 9Vp-p Square Wave ø14x7.5mm Without Driver
TAUdtjkQbZrX0a5 OBO-152

4.0kHz
|
-
|
80
|
9V
|
Ø16.5x4mm

 4.0kHz - 80 9V Ø16.5x4mm Buzzer 80db at 4.0Khz/ 9Vp-p Square Wave Ø16.5x4mm Without Driver
tycoT09eMHsyRvX OBO-35T4

0.8kHz
|
-
|
80
|
9V
|
Ø44x14mm

 0.8kHz - 80 9V Ø44x14mm BUZZER Ø44x14mm 80dB at 800Hz 9V
eeFoFLlojlpIMSz OBO-15230

3.5kHz
|
-
|
80
|
9V
|
Ø14x7.5mm

 3.5kHz - 80 9V Ø14x7.5mm Buzzer 80db At 3.5Khz- 9Vp-p Square Wave Ø14x7.5mm Without Driver
lzRIg0R2TwSIokI OBO-15240PA

4.0kHz
|
-
|
80
|
9V
|
Ø17x8mm

 4.0kHz - 80 9V Ø17x8mm Buzzer 80db at 4.0Khz/ 9Vp-p Square Wave Ø17x8mm Without Driver
jTNVLCHclprKGRO OBO-20205PA

4.0kHz
|
-
|
85
|
9V
|
Ø22x8mm

 4.0kHz - 85 9V Ø22x8mm Buzzer 85db at 4.0Khz/ 9Vp-p Square Wave ø22x8mm Without Driver
gAXbnrksM9L3QDV OBO-22240PA

4.0kHz
|
-
|
90
|
12V
|
Ø22x12mm

 4.0kHz - 90 12V Ø22x12mm Mylar Speaker 90db at 4.0Khz/ 12Vp-p Square Wave ø22x12mm
ztFXm7Kog8OXX1b OBO-20235

4.0kHz
|
-
|
85
|
9V
|
Ø24x5.5mm

 4.0kHz - 85 9V Ø24x5.5mm BUZZER Ø24mm WITH DRIVER LEAD WIRE

Buzzer -> Mylar Speaker -> <Ø20mm

Mylar speaker is a kind of micro speaker unit that uses a diaphragm made of Mylar material. Mylar speakers have an ultra-thin design and a light and clear voice. Widely used in building security industry, automotive electronics, medical devices, mobile internet devices, etc.

Image Code Power [W] Impedenza dB Dimension [mm;mt]
zvpcqllL9TXs59Y OBO-15300F-02

0,003W
|
300Ω
|
120
|
Ø15mm

 0,003W 300Ω 120 Ø15mm Mylar Speaker Ø15mm 300 Ohm with Metallic Cover

Buzzer -> Mylar Speaker -> >Ø20mm and <Ø30mm

Mylar speaker is a kind of micro speaker unit that uses a diaphragm made of Mylar material. Mylar speakers have an ultra-thin design and a light and clear voice. Widely used in building security industry, automotive electronics, medical devices, mobile internet devices, etc.

Image Code Power [W] Impedenza dB Dimension [mm;mt]
OeULDBXJyypZ8Y6 OBO-23008F-01

0,2W
|
8Ω
|
82
|
Ø23mm

 0,2W 8Ω 82 Ø23mm Mylar Speaker 8Ω 200mw 750Hz 82db Ø23mm
ne_YDQbwq7C_B OBO-36008F-03

0,5W
|
8Ω
|
86
|
Ø36mm

 0,5W 8Ω 86 Ø36mm Dynamic Speaker Ø36x4,8mm 86±3dB 0,5W Frequency 0,55~6,8Khz 8Ω

Buzzer -> Magnetic transducer -> Built-In Oscillating Circuit Type

Image Code Frequenza [Hz] Tono dB Voltage[V] Dimension [mm;mt]
ikUqEuRIju8sg3V OBO-1205D-A2

2.3kHz
|
-
|
83
|
3 - 7V
|
Ø12mm

 2.3kHz - 83 3 - 7V Ø12mm Magnetic Transducer 83db min. at 2300Hz/5VDC ø12x7.5mm

Buzzer -> Mylar Speaker -> >Ø40mm and <Ø50mm

Mylar speaker is a kind of micro speaker unit that uses a diaphragm made of Mylar material. Mylar speakers have an ultra-thin design and a light and clear voice. Widely used in building security industry, automotive electronics, medical devices, mobile internet devices, etc.

Image Code Power [W] Impedenza dB Dimension [mm;mt]
TsmeHKtDOXlmGo7 OBO-40204F-01

5W
|
4Ω
|
84
|
Ø42mm

 5W 4Ω 84 Ø42mm Dynamic Speaker Ø42 4ohm 85dB Min at 3m