Digital Speaker RB-50045F-004AR
The RB-50045F-004AR digital speaker is a high-performance audio component designed for various digital applications. Its cylindrical dimensions of Φ56.5*9.3mm and weight of 15.0g make it suitable for incorporation into electronic devices where space is a consideration.
Crafted with Nd-Fe-B magnet material and featuring a magnet size of Φ12.5×3.0T, this speaker offers an impedance of 45 ± 15% Ohm at 1000Hz when provided with 1V. With a power rating of 0.3W (normal) and 0.5W (maximum), it
delivers reliable performance in low-power applications.
The speaker operates within a frequency output (FO) range of 550±20% Hz, providing a sound pressure level (SPL) of 96±3dB across a frequency range of 20-20KHZ. Its distortion is limited to a maximum of 10%, ensuring clear and precise sound reproduction.
Abnormal sound tests involve subjecting the speaker to a 3.67 Volts sine wave for 50~5kHz, with the diaphragm moving forward when a positive DC is applied to the red “+” or“Marked” terminal, thereby confirming correct polarity.
Operating within a temperature range of -20°C to +55°C, the speaker can be stored within the same range without compromising its performance. Load testing includes exposure to white noise for 96 hours at 0.3W input power.
It undergoes high and low-temperature tests at +55±2°C and -25±2°C, respectively, each lasting 96 hours, along with a humidity test at +40±2°C with a relative humidity of 90~95% for 96 hours.
Vibration testsinvolve subjecting the speaker to a frequency of 30 ±15 Hz with an amplitude of 1.5 mm for 2 hours per axis (x, y, z axis) to assess its resilience to vibrations. Additionally, it undergoes a drop test where it is subjected to a 1 M free fall on a concrete floor, repeated 10 times to evaluate its durability under impact.
Finally, a temperature cycle test is conducted at 25 + 65°C for 5 cycles to ensure its performance under varying temperature conditions, making it suitable for use in a widerange of environments and applications.