FHDQT4025A-Changzhou FHD electronics Co.,Ltd

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FHDQT4025A

Parts shall be measured under one condition (temperature: 5~35 ℃, humidity: 45% ~ 85% R.H., atmospheric pressure: 860 ~ 1060hPa), unless standard conditions (temperature: 25±3 ℃, humidity: 60±10%R.H. atmospheric pressure: 860 ~ 1060hPa) are adjusted.

Category： Speaker box

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Keywords: buzzer | horn | materialized film

Product Description

APPROVAL SHEET

FOR

MYLAR SPEAKER

常州富鸿达电子有限公司

CHANG ZHOU FHD ELECTRONICS CO., LTD.

CUSTOMER No.:

CLUE No.:

MODEL No.:

FHDQT4025A-001

OUR PART No.:

CUSTOMER PART No.:

CUSTOMER	APPROVED	CHECKED

Add: Xujia Industrial Park, ZhenLu Town, Changzhou City, Jiangsu China.

江苏省常州市天宁区郑陆镇工业大道2号

Tel: +86-519-83822009

Fax: +86-519-88739926

Email: sales@czfhd.com; http://www.czfhd.com

1. Document revision history
修改时间	版本	修改页次	修改内容	确认人

1.SPECIFICATION
Speaker
1	Dimension		4025H6.8mm
2	Impedance		8Ω±20% at 2 KHz 1.0Vms Sine Wave
3	Rated Input Power		1.5W
4	Max Input Power		2.0W
5	Lowest Resonance Frequency		1250HZ±20% at 1.0V Sine wave
6	Buzz Sound		Must be free audible noise (buzzes and rattles)(F0 ~ 15KHz frequency range ,input level up to 2.83V)
7	Sound Pressure Level		93±3dB(AT 0.1m/1.0W, Average at 1KHZ)
8	Distortion		Not exceed 10% at 2KHz 1W
9	Operating Temperature		-20℃～+60℃
10	Store Temperature		-30℃～+70℃
2. Dimensions		Unit: mm

*Unit: mm; Tolerance: ±0.3mm Except Specified

3.Reliability Test 可靠性測試

3.1	High Temperature Test	High Temperature: +70℃±3℃ Duration : 96 hours
3.2	Low Temperature Test	Low Temperature: -30℃±3℃ Duration : 96 hours
3.3	Humidity Test	Temperature: +40℃±5℃ Relative humidity: 90%～96% RH Duration : 96 hours
3.4	Vibration Test	Vibration: 10Hz～500Hz Amplitude: 0.35mm or acceleration : 50m/s2 Duration : 2h per axis=10 cycles ; 3 axis
3.5	Temperature Cycle Test	Temperature: -30℃ +70℃ Duration : 2 hours 2 hours Cycle: 6 Cycle
3.6	Drop Test (under the unit)	Height: 1.0m Cycle: 10 Cycles
3.7	Load Test	Noise: White noise Power: 1.5W Duration: 96 hours and satisfy the test listed on item 05,08,14.

Sensitivity difference shall be within (3dB) and should satisfy the test described under item 14 after each following test

4.Electrical And Acoustical Measuring Condition

5.Frequency Response