KLJ-4020 Magnetic Buzzer
Product Description
Specification of KLJ-4020 SMD Magnetic Buzzer
| Technical Parameters | KLJ-4020 SMD Magnetic Nuzzer |
Oscillation Frequency(Hz) | 4000 |
Operating Voltage(Vp-p) | 2.0-4.0 |
Rated Voltage(Vp-p) | 3.0 |
Current Consumption(mA/max) | 110 at Rated Voltage |
Sound Pressure Level(dB/min) | 73 at 10cm at Rated Voltage |
Coil Resistance(Ω) | 12±2 |
Operating Temperature(℃） | -20~ +85 |
Storage Temperature(℃） | -30 ~ +85 |
Environment Compulsory Standard | ROHS |
PS: Vp-p=1/2duty, square wave | |
Audible distance at rated vol. | 0.5-1m |
Application | Mini type smart electronic devices, such as wearable smart devices, artificial intelligence devices and more. |
Description of SMD magnetic buzzer:
1. LCP is applied as housing material with properties including heat resistance and acid-alkali resistance
2. Well-chosen yellow grass is applied as lead pin material in order to provide best welding property to the product.
3. Tiny size of the product adapts to more multiple PCB space design.It meets the trend of making electronic products ultimately small and thin.
4. Mature SMD design perfectly meets the SMT requirements which greatly improved welding efficiency.
5. Steadily effective distance of sound output is very suitable for a wide range of portable electronic devices
6. Rated square wave output and rated voltage are needed
7. ROHS Directive-compliant
Product Introduction
Product Introduction and Application
*Main Products: Integrated precision electroacoustic devices, including electronic buzzer, as a warning function for different electronic devices.
*Features: Small and thin, with exquisite workmanship and high production efficiency. We try to meet the trend of making electronic products ultimate small and thin.
*Applications: It can be widely used for cell phone accessories, tablet personal computer accessories, Bluetooth system devices, bank payment system, terminal device of Internet of things, wearable smart devices, GPS system, medical devices, etc
PS:
1. Our products meet the standard of ROHS,REACH,IOS:9001-2008,etc.
2. The item that sound pressure level value and Audible distance is just for reference.It depends on your using environment. In general,smaller the buzzer is,shorter the valid hearing distance is.
3. Pin feet can be plated with gold or brass.
4. We can provide more detailed information if you need certain type's specification.For example,picture of structure of product.
5. We can offer solution and advice according to your operating requirement.Helping you choose the type you need.
Package
Package
Housing Materia | LCP plastic resin (Color : Black) |
Terminal | SMD Type |
Dimension | L4.0×W4.0×H2mm |
Weight | 0.07g |
Packing | 2.5k PCS / Carrier Reel |
Inner Box | 330*330*30mm |
1 roll carrier reel | |
Carton | 370*350*350(MM) |
10 Inner Box | |
25k PCS Buzzers | |
Storage Life | 6 months preservation at room temp(25±3℃）Humidity 30% |
Our Company
ChangZhou Keliking Electronics Co., Ltd. is the full set solution supplier for micro SMT electroacoustics. We mainly deal with the designing, production and sales for micro SMT electroacoustic devices, we can offer the complete full set solution.
Registered Capital is RMB 10,000,000. Business Scope: designing, producing and sales for electronics; Import & export for different types of commodity and technology.
The turnover in 2015 is RMB 50,000,000. In 2016, we started to strengthen upstream and downstream production chain and enlarge our range. This will further increase the sales volume in the future.
Cooperating Company
Through seven years effort, we have established long term cooperation with Haier, OPPO, Lenovo, Philips, TCL, BYD, etc. famous brand.
Product quality, delivery time and service have received good reputation.