3W 4ω (3 Watt 4 Ohm) Plastic Power Amplifier Speaker Speaker 3070 with Terminals Suitable for Voice Recognition Modules

Product Description

3W 4Ω (3 Watt 4 Ohm) Plastic Power Amplifier Speaker Speaker 3070 with Terminals Suitable for Voice
Recognition Modules

Electrical Characteristics 

Item	Specification
Type	3070-4Ω
Dimension	Shown As Mechanical Drawings
Marking	Shown As Mechanical Drawings
Mylar Thickness	Fabric concave edge
Magnet	12.5×1.5Hmm
Voice Coil	PL13.28*8Ω
Nominal Impedance	4Ω±15% At1.0KHz
Rated Input Power	3W
Max. Input Power	3.5W
Mean Sound Pressure Level(S.P.L)	88±3dB By 0.1W/0.1M at0.8,1.0,1.2,1.5KHz AVG.
Frequency Range	F0~20000Hz
Distortion	5%Maximum At 4V Rated Input At 1.0KHz/Nom Power
Buzzes&Rattles	3.5 V
Lowest Resonanve Frequency(F0)	750Hz±15%
Load Test	White Noise 0.2W,24Hrs
Net Weight	9.85g
Operation Temperature	-20ºC~+50ºC
Storage Temperature	-25ºC~+60ºC
Polarity	Diaphragm Shall Move Forward When Applies A Positive DC. Current To The "+" Or Marked On Terminal

  

Product Outside View
 Unite:m     Tolerance:±0.2mm

NO.	PARTAME	MATERIAL	QTY
1	Frame	SPCC	1
2	Magnet	Nd-Fe-B	1
3	Washer	SPCC	1
4	Terminal	FR-4	1
5	Voice Coil	Cu	1
6	Diaphragm	PET	1
7	Gasket	PAPER	1
8	Wire	26#* 2P-2.0	1

3:RELIABILITY TEST                 

ITEM	METHOD OF TEST	STANDARD
Dry Heat Test	+55ºC±2ºC,96h After being placed in a chamber with +55±2ºC for 96 hours and then being placed in natural condition for 2 hours, sounder shall be measured.	All specification must be satisfied after the test.
Cold Test	-25ºC±2ºC,96h, After being placed in a chamber with -25±2ºC for 96 hours and then being placed in natural condition for 2 hours, sounder shall be measured.	All specification must be satisfied after the test.
Humidity Test	After being placed in a chamber with, 95%R.H. at +40ºC±5ºC for 96 hours and then being placed in natural condition for 2 hours, sounder shall be measured. (Attached FIG.1)	All specification must be satisfied after the test.
Temperature Cycle Test	After being placed in a chamber at -25ºC±5ºC for 30 minutes, sounder shall be placed at room temperature(+20ºC). After 15 minutes at this temperature, sounder shall be placed in a chamber at +55ºC±5ºC. After 30 minutes at this temperature, sounder shall be returned to room temperature(+20ºC) for 15 minutes. After 5 above cycles, sounder shall be measured after being placed in natural condition for 2 hours. (Attached FIG.2)	All specification must be satisfied after the test .
Vibration Test	Sounder shall be measured after being applied vibration of amplitude of 1.5mm with 10-55Hz band of vibration frequency . Make this text for directions of X,Y,Z for 2Hrs each (Total 6Hrs)Sweep time is 1 minute.  (Attached FIG.3)	All specification must be satisfied after the test.
Drop Test	The speaker inside the packing must be OK after text. Direction of drop:1 corner,3 edges and 6 faces. Height:1 meter.	All specification must be satisfied after the test. .
Load Test	Noise:       White noise(EIA filter) Power:       2W Duration:     96hours	All specification must be satisfied after the test.

 
Packing Method

FAQ
Q: Are you a trading company or a manufacturer ?
A: We are manufacturer of more than 20 years' experience

Q:How do you control the quality ?
A:We have QC team comply with TQM to ensure the quality , Each step is compliance to the standards,at the same time ,we will take photoes and shoot video for you if you need

Q: Why should i choose your company
A: Superior quality and low price ,professional technical team ,rich experience ,timely delivery time ,excelent after-sales service ,good reputation and credit

Q: What is the lead time
A: The lead time depends on the quantities ordered ,generally within 7-20days after receiving payment

Q: do you inspect the finished products
A: yes, each step of production and finished products will be came out inspection by QC department before shipping ,and we will provide goods inspection reports for your reference before shipment .