Standard
2.25" x 2.25" Paper Cone Woofer
FSC120500-0400
Features
2.25" x 2.25", Plastic Frame
0.8" Dual PESVW Voice Coil, Kapton Former
Paper Cone, Rubber Surround
Neodymium Magnet Motor System
Slim Driver
Parameters
Size
1 Inch
Fs
150 Hz
Re
3.9 Ohms
Sensitivity
76 dB
Quality Factor
1.55 Qts
Rated Power
5 W
This is a 2.25 inch 4 ohm driver, it is a woofer features 0.8 inch voice coil with PESVW. In term of suspension system, cone is consisted by Paper Cone body with NBR surround and spider is consisted by Cotton. In term of magnet motor system, magnet is consisted by Neodymium material. It can be used on portable speaker model.
Family
Range
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 150Hz |
| Mechanical Q factor [Qms] | 3.886 |
| Electrical Q factor [Qes] | 2.58 |
| Total Q factor [Qts] | 1.551 |
| Force factor [Bl] | 1.872 Tm |
| Mechanical resistance [Rms] | 0.596 kg/s |
| Moving mass [Mms] | 1.847 g |
| Compliance [Cms] | 0.344 mm/N |
| Effective diaph. diameter [D] | 45 mm |
| Effective piston area [Sd] | 15.9 cm² |
| Equivalent volume [Vas] | 0.1231 l |
| Sensitivity (2.83V/1m) | 79 dB |
| Ratio Bl/√Re | 0.95 N/√W |
| Ratio fs/Qts | 96.7 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 4 Ω |
| Minimum impedance [Zmin] | 3.875Ω |
| Maximum impedance [Zo] | 9.025 Ω |
| DC resistance [Re] | 3.9 Ω |
| Voice coil inductance [Le] | 0.068 mH |
| Power Handling | |
|---|---|
| 100h RMS noise test (IEC 18.4) | 5 W |
| Long-term max power (IEC 18.2) | - W |
| Voice Coil & Magnet Data | |
|---|---|
| Voice coil diameter | 19.4 mm |
| Voice coil height | 3.7 mm |
| Voice coil layers | 4 |
| Height of gap | 2 mm |
| Linear excursion | ± 0.85 mm |
| Max mech. excursion | ± - mm |
| Unit weight | 0.044 kg |
