Standard
1.2" Aluminum Diaphragm Fullrange
03A19EHC25050
Features
1.2”, Plastic Frame
0.5” PEPSCAW Voice Coil
Aluminum Diaphragm and NBR rubber
Neodymium magnet motor system
Parameters
Size
1.2 Inch
Fs
385 Hz
Re
6.49 Ohms
Sensitivity
77 dB
Quality Factor
0.74 Qts
Rated Power
5 W
The lightweight and petite size are two main key features of the micro full range,which bring exceptional versatility for design options. This 1.2 inch speaker specializes 0.5 inch voice coil, anodized aluminum diaphragm and NBR rubber surround, engineered for portable speaker applications.
Family
Range
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 385.1 Hz |
| Mechanical Q factor [Qms] | 1.55 |
| Electrical Q factor [Qes] | 1.39 |
| Total Q factor [Qts] | 0.735 |
| Force factor [Bl] | 2.17 Tm |
| Mechanical resistance [Rms] | 0.65 kg/s |
| Moving mass [Mms] | 0.42 g |
| Compliance [Cms] | 0.40 mm/N |
| Effective diaph. diameter [D] | 30 mm |
| Effective piston area [Sd] | 7.07 cm² |
| Equivalent volume [Vas] | 0.047 l |
| Sensitivity (2.83V/1m) | 77 dB |
| Ratio Bl/√Re | 0.85 N/√W |
| Ratio fs/Qts | 523.94 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 6 Ω |
| Minimum impedance [Zmin] | 7.2 Ω |
| Maximum impedance [Zo] | 17.2 Ω |
| DC resistance [Re] | 6.49 Ω |
| Voice coil inductance [Le] | 0.054 mH |
| Power Handling | |
|---|---|
| 100h RMS noise test (IEC 18.4) | 3 W |
| Long-term max power (IEC 18.2) | 5 W |
| Voice Coil & Magnet Data | |
|---|---|
| Voice coil diameter | 19.37 mm |
| Voice coil height | 3.6 mm |
| Voice coil layers | 2 |
| Height of gap | 1.5 mm |
| Linear excursion | ± 1.05 mm |
| Max mech. excursion | ± - mm |
| Unit weight | 0.03 kg |
