Hi,
I am trying to help a friend out with changing a electromagnetic buzzer from a 2700khz to 400hz or at least a much lower tone as he is hearing impaired and can't hear high frequency at all.
Basically this is fitted in his new cars reverse parking warning system, it is a factory fitted kit and works very well except he can't hear it.
I have found it very difficult to find a replacement buzzer in this low voltage with a lower frequency
The specs on the original buzzer are
Type YC-9035S-03
Rated Voltage 3.6Vp-p
Operating voltage 2.5~4.5Vp-p
Rated current Max 100mA
Coil resistance 16±3Ω
Rated Frequency 2731Hz
Sound output Min 85dB
I have tried two different buzzers with the specs below but get no sound from them when connected to this circuit
Part number MCKPMB-G2603LA-K4111
Type Mechanical buzzer
Rated voltage : 3 V dc
Operating voltage : 2 to 4 V dc
Maximum rated current : 30 mA / 3 V dc
Minimum sound pressure level : 75 dB / 20 cm
Resonant frequency : 400 ±100 Hz
Response time : 50 ms
Does anyone have any ideas why i am getting no sound ??
Any help is greatly appreciated
Thanks Justin
I am trying to help a friend out with changing a electromagnetic buzzer from a 2700khz to 400hz or at least a much lower tone as he is hearing impaired and can't hear high frequency at all.
Basically this is fitted in his new cars reverse parking warning system, it is a factory fitted kit and works very well except he can't hear it.
I have found it very difficult to find a replacement buzzer in this low voltage with a lower frequency
The specs on the original buzzer are
Type YC-9035S-03
Rated Voltage 3.6Vp-p
Operating voltage 2.5~4.5Vp-p
Rated current Max 100mA
Coil resistance 16±3Ω
Rated Frequency 2731Hz
Sound output Min 85dB
I have tried two different buzzers with the specs below but get no sound from them when connected to this circuit
Part number MCKPMB-G2603LA-K4111
Type Mechanical buzzer
Rated voltage : 3 V dc
Operating voltage : 2 to 4 V dc
Maximum rated current : 30 mA / 3 V dc
Minimum sound pressure level : 75 dB / 20 cm
Resonant frequency : 400 ±100 Hz
Response time : 50 ms
Does anyone have any ideas why i am getting no sound ??
Any help is greatly appreciated
Thanks Justin