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Knowles Speakers & Transducers

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Brand = Knowles

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Part #

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 330 RES

BF-3034-000
Knowles
1: Rp48.984
69In Stock

Mfr. Part No.
BF-3034-000

Mouser Part No
721-BF-3034-000

Knowles

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 330 RES

Datasheet

69In Stock

Rp48.984

Rp38.527

Rp35.224

Rp34.490

View

Min.: 1
Mult.: 1

Dampers

Acoustic

330 Ohms

1.78 mm

1.65 mm

Speakers & Transducers Wideband Balanced Armature Speaker

WBFK-30019-000
Knowles
1: Rp565.607
74In Stock

Mfr. Part No.
WBFK-30019-000

Mouser Part No
721-WBFK-30019-000

Knowles

Speakers & Transducers Wideband Balanced Armature Speaker

Datasheet

74In Stock

Rp565.607

Rp426.545

Rp383.982

Rp355.362

View

Min.: 1
Mult.: 1

Receivers

Wideband Balanced Armature

7.7 kHz

114 dBA

15.2 Ohms

Rectangular

Wire Leads

5 mm

2.73 mm

1.98 mm

Speakers & Transducers RECEIVER

WBFK-33649-000
Knowles
1: Rp576.248
83In Stock

Mfr. Part No.
WBFK-33649-000

Mouser Part No
721-WBFK-33649-000

Knowles

Speakers & Transducers RECEIVER

83In Stock

Rp576.248

Rp434.433

Rp390.953

Rp361.600

Rp328.944

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

Rectangular

Solder Pad

- 17 C

+ 63 C

5 mm

2.73 mm

1.98 mm

Speakers & Transducers Plug 2.08 dia. 330 Res, Grey

BF-1999-000
Knowles
1: Rp40.178
1.125In Stock

Mfr. Part No.
BF-1999-000

Mouser Part No
721-BF-1999-000

Knowles

Speakers & Transducers Plug 2.08 dia. 330 Res, Grey

Datasheet

1.125In Stock

Rp40.178

Rp31.555

Rp28.620

Rp26.785

View

Min.: 1
Mult.: 1

Dampers

Acoustic

330 Ohms

Round

2.08 mm

2.44 mm

Speakers & Transducers Balanced Armature Receiver

RAB-32037-000
Knowles
1: Rp339.218
100In Stock

Mfr. Part No.
RAB-32037-000

Mouser Part No
721-RAB-32037-000

Knowles

Speakers & Transducers Balanced Armature Receiver

Learn More

Datasheet

100In Stock

Rp339.218

Rp262.898

Rp237.581

Rp222.354

Rp207.860

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

6.2 kHz

101 dBA

124 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

5.28 mm

2.96 mm

2.58 mm

Speakers & Transducers 7.87 X 5.59 X 4.01MM 126 SENS, 1S PORT

EF-26329-000
Knowles
1: Rp589.274
22In Stock

Mfr. Part No.
EF-26329-000

Mouser Part No
721-EF-26329-000

Knowles

Speakers & Transducers 7.87 X 5.59 X 4.01MM 126 SENS, 1S PORT

Datasheet

22In Stock

Rp589.274

Rp445.441

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

126 dBA

150 Ohms

Rectangular

Solder Pad

7.87 mm

5.59 mm

4.06 mm

Speakers & Transducers Balanced Armature Speaker

SWFK-31736-000
Knowles
1: Rp1.139.470
67In Stock

Mfr. Part No.
SWFK-31736-000

Mouser Part No
721-SWFK31736000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

67In Stock

Rp1.139.470

Rp867.582

Rp783.925

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

7.6 kHz

114 dBA

7 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

3.86 mm

2.73 mm

5.03 mm

Speakers & Transducers WIDE BANDWIDTH, WARM BASS, HIGH OUTPUT

HE-31751-000
Knowles
1: Rp932.527
23In Stock

Mfr. Part No.
HE-31751-000

Mouser Part No
721-HE-31751-000

Knowles

Speakers & Transducers WIDE BANDWIDTH, WARM BASS, HIGH OUTPUT

Datasheet

23In Stock

Rp932.527

Rp741.912

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

10 kHz

132 dBA

118.1 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

9.47 mm

7.18 mm

7.26 mm

Speakers & Transducers Balanced Armature Speaker

FC-30814-P127
Knowles
1: Rp742.096
15In Stock

Mfr. Part No.
FC-30814-P127

Mouser Part No
721-FC30814P127

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

15In Stock

Rp742.096

Rp560.837

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

106.5 dBA

51.8 Ohms

Rectangular

Wire Leads

5.17 mm

3.53 mm

3 mm

Speakers & Transducers Balanced Armature Speaker

CI-22955-000
Knowles
1: Rp666.510
987In Stock

Mfr. Part No.
CI-22955-000

Mouser Part No
721-CI-22955-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

987In Stock

Rp666.510

Rp503.781

Rp453.697

Rp428.563

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

5.5 kHz

133 dBA

80 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

9.5 mm

7.2 mm

4.1 mm

Speakers & Transducers RECEIVER ASSEMBLY

RAU-34832-B148
Knowles
1: Rp805.756
68In Stock

Mfr. Part No.
RAU-34832-B148

Mouser Part No
721-RAU-34832-B148

Knowles

Speakers & Transducers RECEIVER ASSEMBLY

Datasheet

68In Stock

Rp805.756

Rp640.642

Rp586.155

Rp548.729

Rp548.178

Min.: 1
Mult.: 1

Earphones

Balanced Armature

122 dBA

14 Ohms

Rectangular

Speakers & Transducers Plug 2.08 dia. 680 Res, White

BF-1859-000
Knowles
1: Rp40.178
3.284In Stock

Mfr. Part No.
BF-1859-000

Mouser Part No
721-BF-1859-000

Knowles

Speakers & Transducers Plug 2.08 dia. 680 Res, White

Datasheet

3.284In Stock

Rp40.178

Rp31.555

Rp28.803

Rp26.785

View

Min.: 1
Mult.: 1

Dampers

Acoustic

680 Ohms

Round

2.08 mm

2.44 mm

Speakers & Transducers Plug 2.08 dia. 3300 Res, Orange

BF-1922-000
Knowles
1: Rp40.728
2.535In Stock

Mfr. Part No.
BF-1922-000

Mouser Part No
721-BF-1922-000

Knowles

Speakers & Transducers Plug 2.08 dia. 3300 Res, Orange

Datasheet

2.535In Stock

Rp40.728

Rp29.721

Rp26.418

Rp24.217

View

Min.: 1
Mult.: 1

Dampers

Acoustic

3.3 kOhms

Round

2.08 mm

2.44 mm

Speakers & Transducers 1.12DIA X 1.410MM SCREEN 680 RES

BF-1988-000
Knowles
1: Rp38.160
2.504In Stock

Mfr. Part No.
BF-1988-000

Mouser Part No
721-BF-1988-000

Knowles

Speakers & Transducers 1.12DIA X 1.410MM SCREEN 680 RES

Datasheet

2.504In Stock

Rp38.160

Rp30.087

Rp27.336

Rp25.501

View

Min.: 1
Mult.: 1

Dampers

Acoustic

680 Ohms

Round

1.12 mm

1.41 mm

Speakers & Transducers Balanced Armature Speaker

BK-28507-000
Knowles
1: Rp519.192
400In Stock

Mfr. Part No.
BK-28507-000

Mouser Part No
721-BK-28507-000

Knowles

Speakers & Transducers Balanced Armature Speaker

400In Stock

Rp519.192

Rp412.051

Rp376.643

Rp352.427

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

6 kHz

126 dBA

13.3 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

7.87 mm

5.59 mm

4.01 mm

Speakers & Transducers Balanced Armature Speaker

FK-23451-000
Knowles
1: Rp841.348
42In Stock

Mfr. Part No.
FK-23451-000

Mouser Part No
721-FK-23451-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

42In Stock

Rp841.348

Rp669.079

Rp612.206

Rp575.514

Rp575.331

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

107 dBA

630 Ohms

Rectangular

Solder Pad

5 mm

2.73 mm

1.98 mm

Speakers & Transducers Balanced Armature Receiver,level sound

RAB-32063-000
Knowles
1: Rp423.242
190In Stock

Mfr. Part No.
RAB-32063-000

Mouser Part No
721-RAB-32063-000

Knowles

Speakers & Transducers Balanced Armature Receiver,level sound

Learn More

Datasheet

190In Stock

Rp423.242

Rp317.753

Rp285.647

Rp264.182

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

10.8 kHz

116 dBA

41 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

5.15 mm

2.96 mm

2.6 mm

Speakers & Transducers Balanced Armature Receiver

RAB-32066-000
Knowles
1: Rp403.429
713In Stock

Mfr. Part No.
RAB-32066-000

Mouser Part No
721-RAB-32066-000

Knowles

Speakers & Transducers Balanced Armature Receiver

Learn More

Datasheet

713In Stock

Rp403.429

Rp303.993

Rp273.539

Rp252.991

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

6.1 kHz

101.5 dBA

135 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

5.3 mm

3.28 mm

2.73 mm

Speakers & Transducers dual balanced armature receiver

TWFK-30017-000
Knowles
1: Rp1.049.391
107In Stock
100Expected 15/05/2026

Mfr. Part No.
TWFK-30017-000

Mouser Part No
721-TWFK-30017-000

Knowles

Speakers & Transducers dual balanced armature receiver

Datasheet

107In Stock

100Expected 15/05/2026

Rp1.049.391

Rp835.293

Rp764.661

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

6.5 kHz

117 dBA

43 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

5 mm

2.73 mm

4.36 mm

Speakers & Transducers Wideband Balanced Armature Speaker

WBFK-30095-000
Knowles
1: Rp433.516
110In Stock

Mfr. Part No.
WBFK-30095-000

Mouser Part No
721-WBFK-30095-000

Knowles

Speakers & Transducers Wideband Balanced Armature Speaker

Datasheet

110In Stock

Rp433.516

Rp343.988

Rp329.127

Rp328.944

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

7.4 kHz

91 dBA

14.5 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

5 mm

2.73 mm

1.98 mm

Speakers & Transducers RECEIVER

RDI-34006-000
Knowles
1: Rp871.435
67In Stock

Mfr. Part No.
RDI-34006-000

Mouser Part No
721-RDI-34006-000

Knowles

Speakers & Transducers RECEIVER

Datasheet

67In Stock

Rp871.435

Rp692.928

Rp668.895

Rp638.257

Rp598.263

Min.: 1
Mult.: 1

Earphones

Balanced Armature

141 dBA

25 Ohms

Rectangular

Speakers & Transducers RECEIVER ASSEMBLY

RLQ-34240-000
Knowles
1: Rp926.656
197In Stock

Mfr. Part No.
RLQ-34240-000

Mouser Part No
721-RLQ-34240-000

Knowles

Speakers & Transducers RECEIVER ASSEMBLY

Datasheet

197In Stock

Rp926.656

Rp737.142

Rp674.582

Rp640.826

Rp640.642

Min.: 1
Mult.: 1

Earphones

Balanced Armature

126 dBA

57 Ohms

Rectangular

Speakers & Transducers PREMUIM BANDWIDTH WARM BASS, HIGH OUTP

GK-31732-000
Knowles
1: Rp1.237.988
63In Stock
100Expected 08/05/2026

Mfr. Part No.
GK-31732-000

Mouser Part No
721-GK-31732-000

Knowles

Speakers & Transducers PREMUIM BANDWIDTH WARM BASS, HIGH OUTP

Datasheet

63In Stock

100Expected 08/05/2026

Rp1.237.988

Rp1.043.887

Rp944.085

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

131 dBA

23 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

9.47 mm

7.18 mm

6.9 mm

Speakers & Transducers RECEIVER ASSEMBLY

RDU-35000-000
Knowles
1: Rp1.289.907
128In Stock

Mfr. Part No.
RDU-35000-000

Mouser Part No
721-RDU-35000-000

Knowles

Speakers & Transducers RECEIVER ASSEMBLY

Datasheet

128In Stock

Rp1.289.907

Rp981.694

Rp887.763

Min.: 1
Mult.: 1

Earphones

Balanced Armature

127 dBA

7 Ohms

Rectangular

Speakers & Transducers Plug 2.08 dia. 1500 Res, Green

BF-1861-000
Knowles
1: Rp44.214
238In Stock

Mfr. Part No.
BF-1861-000

Mouser Part No
721-BF-1861-000

Knowles

Speakers & Transducers Plug 2.08 dia. 1500 Res, Green

Datasheet

238In Stock

Rp44.214

Rp33.390

Rp30.087

Rp27.886

View

Min.: 1
Mult.: 1

Dampers

Acoustic

1.5 kOhms

Round

2.08 mm

2.44 mm

Knowles Speakers & Transducers

Customer Service Office

Company

Resources

Support

70 Hz to 9.9 kHz
470 Hz
500 Hz
800 Hz
1 kHz
3.4 kHz
3.8 kHz
4 kHz
4.324 kHz
4.4 kHz
4.5 kHz
5 kHz
5.2 kHz
5.3 kHz
5.4 kHz
5.5 kHz
5.6 kHz
5.8 kHz
6 kHz
6.1 kHz

91 dBA
95 dBA
96 dBA
100 dBA
101 dBA
101.5 dBA
102.5 dBA
104 dBA
105.5 dBA
106 dBA
106.5 dBA
107 dBA
108 dBA
111.5 dBA
113.5 dBA
114 dBA
115 dBA
116 dBA
117 dBA
118 dBA

7 Ohms
7.1 Ohms
10.2 Ohms
13.3 Ohms
14 Ohms
14.5 Ohms
15.2 Ohms
17 Ohms
22 Ohms
23 Ohms
24.4 Ohms
25 Ohms
28 Ohms
28.125 Ohms
30 Ohms
31.5 Ohms
37 Ohms
40.5 Ohms
41 Ohms
43 Ohms

1.41 mm
1.57 mm
1.65 mm
2.44 mm
3.86 mm
5 mm
5.09 mm
5.15 mm
5.16 mm
5.17 mm
5.18 mm
5.19 mm
5.28 mm
5.3 mm
5.59 mm
6.3 mm
6.32 mm
7.87 mm
7.9 mm
9.47 mm

1.93 mm
1.98 mm
2.58 mm
2.59 mm
2.6 mm
2.73 mm
2.97 mm
3 mm
3.02 mm
3.8 mm
4 mm
4.01 mm
4.06 mm
4.1 mm
4.19 mm
4.36 mm
5.02 mm
5.03 mm
5.59 mm
6.3 mm