SC 4.7 ND - 8 Ohm

Art. No. 8048

Magnetically shielded 4 x 7 cm (1.6" x 2.8") fullrange driver with good efficiency and balanced frequency response with a clear highrange reproduction. Extremely small size due to a neodymium magnet system. Applicable as built-in speaker in TV's and PC's with very small mounting space.

Typical applications

Video monitoring screens
TVs
Monitoring speaker for electronic devices

Attributes

Moisture-resistant membrane
metal design
Magnetically shielded

Rated power	2 W
Maximum power	4 W
Nominal impedance Z	8 Ohm
Frequency response	220–20000 Hz
Mean sound pressure level	81 dB (1 W/1 m)
Opening angle (-6 dB)	180°/4000 Hz hor.180°/4000 Hz ver.
Excursion limit	+/−0.5 mm
Resonance frequency fs	360 Hz
Magnetic induction	0.7 T
Magnetic flux	60 µWb
Height of front pole-plate	2 mm
Voice coil diameter	14 mm
Height of winding	2 mm
Cutout diameter	35 x 65 mm (oval)
Net weight	0.041 kg
D.C. resistance Rdc	7.7 Ohm
Mechanical Q factor Qms	5.31
Electrical Q factor Qes	8.34
Total Q factor Qts	3.24
Equivalent volume Vas	0.11 l
Effective piston area Sd	16 cm²
Dynamically moved mass Mms	0.6 g
Force factor Bxl	1.12 Tm
Inductance of the voice coil L	0.3 mH
Connections	4.8 x 0.5 mm (+)/2.8 x 0.5 mm (-)
Temperature range	–25 ... 70 °C

Rated power

2 W

Maximum power

4 W

Nominal impedance Z

8 Ohm

Frequency response

220–20000 Hz

Mean sound pressure level

81 dB (1 W/1 m)

Opening angle (-6 dB)

180°/4000 Hz hor.180°/4000 Hz ver.

Excursion limit

+/−0.5 mm

Resonance frequency fs

360 Hz

Magnetic induction

0.7 T

Magnetic flux

60 µWb

Height of front pole-plate

2 mm

Voice coil diameter

14 mm

Height of winding

2 mm

Cutout diameter

35 x 65 mm (oval)

Net weight

0.041 kg

D.C. resistance Rdc

7.7 Ohm

Mechanical Q factor Qms

5.31

Electrical Q factor Qes

8.34

Total Q factor Qts

3.24

Equivalent volume Vas

0.11 l

Effective piston area Sd

16 cm²

Dynamically moved mass Mms

0.6 g

Force factor Bxl

1.12 Tm

Inductance of the voice coil L

0.3 mH

Connections

4.8 x 0.5 mm (+)/2.8 x 0.5 mm (-)

Temperature range

–25 ... 70 °C