Round Plastic Micro Mylar Speaker Diameter 28mm 4ohm 1watt for Phone or Electronic Products

• Customization: Available
• Cone: Plastic, Polypropylene and Titanium Edge
• Sound Pressure Level: 102 dB (at 1.0W/0.1m with Baffle Avg0.8K, 1.0K1.2
• Model NO.: SM28JX4-1.0H
• Usage: Expand Volume
• WORD nChannels: 2.1Channel
• Dimension: 28mm*4.7mm
• Voice Coil Imp: 4ohm
• Rated(Max.)Power: 1.0(1.8)W
• Category: Speaker
• Transmission Mode: Air-conduction
• Transducer Principle: Dynamic Earphone
• Style: Mini
• Radiation Mode: Indirect Radiation Type
• Certification: ISO9001, CE, RoHS
• Brand: Jy
• Transport Package: Paper
• Specification: 28mm*4.7mm
• Trademark: JY
• Origin: China
• HS Code: 85318090
• Production Capacity: 1000000 Pieces/Year

Product Description

Item	Specifications
Dimension	Φ28×4.7t
Rated Input Power	1.0W
Max Input Power	1.8W(white noise/1min)
Rated Impedance	4±15% Ω /1.5KHz/1Vrms
Resonance Frequency(f0)	700±20% Hz/1V(without baffle)
Sound Pressure Level	SPL:102±3dB (at 1.0W/0.1m With baffle AVG0.8K,1.0K1.2K,1.5KHz)
Frequency Range	350~ 10KHz(Application:full audible signals)
THD	THD:Less than max 15% (F0-6KHZ/0.1m/1.0W)
Polarity	When a positive DC Current is applied to the voice coil terminal marked +or red ,the diaphram shall move forward
OperationTest	Must be normal at sine wave and program source1.0W.
Buzz,Rattle,etc.	Should not be audible at2.0 V sine wave between (f0Hz ~ 10KHz)
Storage Temprange	-40ºC---+85ºC
Operating Temprange	-20ºC---+70ºC
Appearance	Should not exist any obstacle to be harmful to normal operation;damages,cracks,rusts and distortions,etc.