4028 40*28 мм Внутренний Магнитный 4 Ом 3 Вт блок драйвера 85 дБ квадратный динамик для
- Категория: Speakers >>>
- Поставщик: Guangzhou,Yueneng,Technology,Co.,Ltd.
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Описание и отзывы
Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Sep-15-2025 | 0.79 $* | 0.60 $* |
| Aug-15-2025 | 0.28 $* | 0.64 $* |
| Jul-15-2025 | 0.5 $* | 0.54 $* |
| Jun-15-2025 | 0.66 $* | 0.46 $* |
| May-15-2025 | 0.50 $* | 0.16 $* |
| Apr-15-2025 | 0.42 $* | 0.54 $* |
| Mar-15-2025 | 0.15 $* | 0.47 $* |
| Feb-15-2025 | 0.84 $* | 0.84 $* |
| Jan-15-2025 | 0.13 $* | 0.65 $* |
Характеристики
4028 40*28 mm Internal Magnetic 4 ohm 3 w unit driver 85db square Laptop Dynamic speaker
Product Name | 4028 40*28 mm Internal Magnetic 4 ohm 3 w unit driver 85db square Laptop Dynamic speaker |
Type | Dynamic speaker |
RATED / MAX. POWER | 3.0W / 3.5W |
IMPEDANCE | 4Ω±15% at 1 KHz 2.0Vms Sine Wave |
OPERATING TEMPERATURE | - 30℃ ～ +60℃ |
STORAGE TEMPERATURE | - 40℃ ～ +75℃ |
RESONANCE FREQUENCY | 550±20% Hz at 1.0V Sine wave |
SENSITIVITY (S.P.L.) | 85dB ±3dB at 0.5w/ 0.1m / 10.12.15.20×100Hz average |
FREQUENCY RANGE | fo ~ 20kHz |
DISTORTION | Less than 5 % at 1000Hz 0.6 W |
OUT SIDE SIZE | 40mm×28mm |
UNIT WEIGHT | 12.0g±0.1g |
1. Speaker Dimensions
2. Speaker Test Circuit
3. Speaker Frequency Response
4. Speaker Packing
Note:
1. In automated mounting of the SMD sound transducers on PCB, any bending, expanding and pulling forces or shocks against the SMD sound transducers shall be kept minimum to prevent them from electrical failures and mechanical damages of the devices.
2. In the reflow soldering, too high soldering temperatures and too large temperature Gradient such as rapid heating or cooling may cause electrical failures and mechanical damages of the devices.
Guangzhou Yueneng Technology Co., Ltd. is located in Yuexiu District, Guangzhou City, Guangdong Province, the business capital of a thousand years. We can provide SMD buzzers, piezoelectric buzzers, electromagnetic buzzers, speakers, receivers, microphone piezoelectric components and other products. Since 1994, we have been focusing on the research, development and production of acoustic components, and continue to provide high-quality products, competitive prices and reliable services. The company strictly implements ISO9001 and QS9000, and strengthens the control system. Our products are widely used in electrical appliances, such as MP3 players, MP4 players, security systems, medical equipment, etc. The company has more than 6,000 square meters of workshops, more than 260 skilled workers, and more than 30 experienced engineers. Most of the products are exported to the United States, Europe and Southeast Asia. We believe that Yueneng Technology will create a perfect future with you.
Q1: Could I have samples for testing first?
A1: Yes. definitely you can. We can even send you free sample and you should only pay for the shipping fee.
Q2: How long is the production lead time/delivery time?
A2: We will send sample to you within 3 days.
Production for big quantity needs about 20 days. And it also depends on product and quantity.
Q3: What about terms of payment?
A3: Payment terms: T/T, West Union, Paypal and L/C etc.
Q4: What is your MOQ?
A4 :We don’s requested MOQ for each model, but the more quantity cost will be more cost-effective .
Q5: How will you control product quality?
A5: We strictly control every details of production, and every product is inspected by our QC team before delivery.
Q6: Are you trading company or manufacturer ?
A6: We are buzzer manufactory.
Q7: Can you solve technical problems for us?
A7: Yes, Our technical team will try our best to support you.
Q8: Could you provide specifications and technical support?
A8 :We have a series of specifications to support you for free！Contact Us Now!
A1: Yes. definitely you can. We can even send you free sample and you should only pay for the shipping fee.
Q2: How long is the production lead time/delivery time?
A2: We will send sample to you within 3 days.
Production for big quantity needs about 20 days. And it also depends on product and quantity.
Q3: What about terms of payment?
A3: Payment terms: T/T, West Union, Paypal and L/C etc.
Q4: What is your MOQ?
A4 :We don’s requested MOQ for each model, but the more quantity cost will be more cost-effective .
Q5: How will you control product quality?
A5: We strictly control every details of production, and every product is inspected by our QC team before delivery.
Q6: Are you trading company or manufacturer ?
A6: We are buzzer manufactory.
Q7: Can you solve technical problems for us?
A7: Yes, Our technical team will try our best to support you.
Q8: Could you provide specifications and technical support?
A8 :We have a series of specifications to support you for free！Contact Us Now!
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