Datasheet

Miniature Speaker
Test Conditions
Test ClimTest Climatic Condition
Ambient temperature: 15 °C ~ 35 °C, preferably at 20 °C
Relat
ive humidity: 25% to 75%
Air pressure: 86kPa ~ 106kPa
Refer to IEC 268-1
Test environment
Test method of SPL, Frequency Response Curve and THD
The speaker module and B&K microphone module should be fixed on the fixed bar in the acoustic anechoic chamber. The distance
between B&K 4191 microphone module and speaker module should be 10 cm. the driving signal is 2.53 Vrms sinusoidal signal and
sweep from 20 Hz to 20k Hz with 1/12 Octave (ISO R40) sequence
General Reliability test
After reliability test, the samples shall be stored under climatic conditions such as normally exist in ordinary rooms or laboratories.
Unless otherwise noted, the recovery period shall be 4 hours at least before performance t
esting. After reliability test, all samples
must be meet the
requirements specified in the document. The quantity of the test is 10 pcs if not stated otherwise.
Drop test
DUTs shall be mounted in a 100g fixture, drop samples 1.5m three times in each direction. Total - 18 times
Vibration
10 to 50 Hz within 1min / Amplitude 1.5mm / Duration: 30minutes in each of 3 axes.
Rated Noise Power
Input shall be simulated program signal in accordance with IEC 60268-1 with crest factor around 1.8 to 2.2 in rated frequency range
with Rated Power for 100 hours. Temp.: 65 °C
Distrelec Schweiz AG, Grabenstrasse 6, 8606 Nänikon, Switzerland, T [phone], [e-mail], distrelec.com