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Balanced Armature Speakers & Transducers

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Type = Balanced Armature

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Part #

Speakers & Transducers dual balanced armature receiver

TWFK-30017-000
Knowles
1: $88.55
141In Stock

Mfr. Part #
TWFK-30017-000

Mouser Part #
721-TWFK-30017-000

Knowles

Speakers & Transducers dual balanced armature receiver

Datasheet

141In Stock

$88.55

$69.41

$63.23

$61.63

View

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: $44.32
90In Stock

Mfr. Part #
WBFK-30095-000

Mouser Part #
721-WBFK-30095-000

Knowles

Speakers & Transducers Wideband Balanced Armature Speaker

Datasheet

90In Stock

$44.32

$34.24

$31.05

$28.93

View

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 ASSEMBLY

RDU-35000-000
Knowles
1: $100.83
108In Stock

Mfr. Part #
RDU-35000-000

Mouser Part #
721-RDU-35000-000

Knowles

Speakers & Transducers RECEIVER ASSEMBLY

Datasheet

108In Stock

$100.83

$78.31

$71.37

$66.80

View

Min.: 1
Mult.: 1

Earphones

Balanced Armature

127 dBA

7 Ohms

Rectangular

Speakers & Transducers RECEIVER ASSEMBLY

RLQ-34240-000
Knowles
1: $78.26
194In Stock

Mfr. Part #
RLQ-34240-000

Mouser Part #
721-RLQ-34240-000

Knowles

Speakers & Transducers RECEIVER ASSEMBLY

Datasheet

194In Stock

$78.26

$61.30

$55.83

$53.88

View

Min.: 1
Mult.: 1

Earphones

Balanced Armature

126 dBA

57 Ohms

Rectangular

Speakers & Transducers Balanced Armature Speaker

BK-26824-000
Knowles
1: $45.12
456In Stock

Mfr. Part #
BK-26824-000

Mouser Part #
721-BK-26824-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

456In Stock

$45.12

$34.89

$32.43

$30.20

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

5.6 kHz

127 dBA

22 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

7.9 mm

5.6 mm

4 mm

Speakers & Transducers Balanced Armature Speaker

ED-23147-000
Knowles
1: $43.78
184In Stock

Mfr. Part #
ED-23147-000

Mouser Part #
721-ED-23147-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

184In Stock

$43.78

$33.62

$30.48

$28.43

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

115 dBA

87 Ohms

Rectangular

Solder Pad

6.3 mm

4.29 mm

3.02 mm

Speakers & Transducers Balanced Armature Speaker

ED-23619-000
Knowles
1: $43.78
140In Stock

Mfr. Part #
ED-23619-000

Mouser Part #
721-ED-23619-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

140In Stock

$43.78

$33.62

$30.48

$28.43

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

800 Hz

117 dBA

10.2 Ohms

Rectangular

Solder Pad

6.3 mm

4.29 mm

3.02 mm

Speakers & Transducers VERY SMALL DUEL BASS EMPHASIS

DWFK-31785-000
Knowles
1: $96.36
153In Stock

Mfr. Part #
DWFK-31785-000

Mouser Part #
721-DWFK-31785-000

Knowles

Speakers & Transducers VERY SMALL DUEL BASS EMPHASIS

Datasheet

153In Stock

$96.36

$75.21

$68.43

$64.76

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

6.5 kHz

120 dBA

30 Ohms

Rectangular

Solder Pad

5 mm

2.73 mm

3.8 mm

Speakers & Transducers Balanced Armature

HODVTEC-31618-000
Knowles
1: $69.94
50In Stock

Mfr. Part #
HODVTEC-31618-000

Mouser Part #
721-HODVTEC31618000

Knowles

Speakers & Transducers Balanced Armature

Learn More

Datasheet

50In Stock

$69.94

$54.75

$49.84

$46.48

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

4.324 kHz

122 dBA

25 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

5.59 mm

4.09 mm

7.94 mm

Speakers & Transducers Balanced Armature Receiver, open vent

RAB-32033-000
Knowles
1: $31.55
92In Stock

Mfr. Part #
RAB-32033-000

Mouser Part #
721-RAB32033000

Knowles

Speakers & Transducers Balanced Armature Receiver, open vent

Learn More

Datasheet

92In Stock

$31.55

$24.47

$22.20

$20.68

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Board Mount

11.8 kHz

106 dBA

50 Ohms

Rectangular

Solder Pad

5.15 mm

2.96 mm

2.59 mm

Speakers & Transducers Wideband Balanced Armature Speaker

WBFK-30000-000
Knowles
1: $43.32
13In Stock

Mfr. Part #
WBFK-30000-000

Mouser Part #
721-WBFK-30000-000

Knowles

Speakers & Transducers Wideband Balanced Armature Speaker

Datasheet

13In Stock

$43.32

$33.80

$30.73

$28.64

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

6.8 kHz

95 dBA

124 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

5 mm

2.73 mm

1.93 mm

Speakers & Transducers RECEIVER

RDI-33438-000
Knowles
1: $78.87
42In Stock

Mfr. Part #
RDI-33438-000

Mouser Part #
721-RDI-33438-000

Knowles

Speakers & Transducers RECEIVER

Datasheet

42In Stock

$78.87

$61.78

$56.26

$52.70

View

Min.: 1
Mult.: 1

Earphones

Balanced Armature

Panel Mount

1 kHz

136 dBA

24.4 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

7.9 mm

5.2 mm

4.1 mm

Speakers & Transducers Balanced Armature Speaker

SWFK-31736-000
Knowles
1: $89.54
45In Stock

Mfr. Part #
SWFK-31736-000

Mouser Part #
721-SWFK31736000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

45In Stock

$89.54

$68.60

$62.55

$60.02

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 Balanced Armature Speaker

ED-23146-000
Knowles
1: $42.78
2In Stock

Mfr. Part #
ED-23146-000

Mouser Part #
721-ED-23146-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

2In Stock

$42.78

$33.36

$30.34

$28.28

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

800 Hz

104 dBA

360 Ohms

Rectangular

Solder Pad

6.3 mm

4.29 mm

3 mm

Speakers & Transducers Balanced Armature Speaker

FH-26553-000
Knowles
1: $82.57
3In Stock

Mfr. Part #
FH-26553-000

Mouser Part #
721-FH-26553-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

3In Stock

$82.57

$62.54

$56.38

$53.78

$50.41

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

96 dBA

130 Ohms

Rectangular

Solder Pad

5.09 mm

2.8 mm

2.6 mm

Speakers & Transducers RECEIVER

RAQ-35091-000
Knowles
1: $14.60
38In Stock

Mfr. Part #
RAQ-35091-000

Mouser Part #
721-RAQ-35091-000

Knowles

Speakers & Transducers RECEIVER

Datasheet

38In Stock

$14.60

$11.30

$10.66

$9.89

View

Min.: 1
Mult.: 1

Earphones

Balanced Armature

122 dBA

74 Ohms

Rectangular

Speakers & Transducers Balanced Armature Speaker

ED-29457-000
Knowles
1: $44.60
200Expected 2026-10-09

Mfr. Part #
ED-29457-000

Mouser Part #
721-ED-29457-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

200Expected 2026-10-09

$44.60

$33.62

$30.48

$28.43

$26.06

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

800 Hz

102.5 dBA

395 Ohms

Rectangular

Solder Pad

6.3 mm

4.29 mm

3 mm

Speakers & Transducers Balanced Armature Speaker

ED-27926-000
Knowles
100: $26.06
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
ED-27926-000

Mouser Part #
721-ED-27926-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

Non-Stocked Lead-Time 12 Weeks

$26.06

Min.: 100
Mult.: 100

Receivers

Balanced Armature

Board Mount

4 kHz

102.5 dBA

209 Ohms

Solder Pad

6.3 mm

4.29 mm

3 mm

Speakers & Transducers Balanced Armature Speaker

BK-21600-000
Knowles
100: $26.87
Non-Stocked

Mfr. Part #
BK-21600-000

Mouser Part #
721-BK-21600-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

Non-Stocked

$26.87

Min.: 100
Mult.: 100

Receivers

Balanced Armature

Board Mount

3.8 kHz

123 dBA

730 Ohms

Rectangular

Solder Pad

7.87 mm

5.59 mm

4 mm

Speakers & Transducers Balanced Armature Speaker

BK-21613-000
Knowles
100: $26.87
Non-Stocked

Mfr. Part #
BK-21613-000

Mouser Part #
721-BK-21613-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

Non-Stocked

$26.87

Min.: 100
Mult.: 100

Receivers

Balanced Armature

Board Mount

4 kHz

118 dBA

1.2 kOhms

Rectangular

Solder Pad

7.87 mm

5.59 mm

4 mm

Speakers & Transducers Balanced Armature Speaker

BK-23110-017
Knowles
100: $28.11
Non-Stocked

Mfr. Part #
BK-23110-017

Mouser Part #
721-BK-23110-017

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

Non-Stocked

$28.11

$27.39

Quote

Min.: 100
Mult.: 100

Receivers

Balanced Armature

Board Mount

118 dBA

1.5 kOhms

Rectangular

Solder Pad

7.87 mm

5.59 mm

4 mm

Speakers & Transducers Balanced Armature Speaker

BK-23134-000
Knowles
100: $26.87
Non-Stocked

Mfr. Part #
BK-23134-000

Mouser Part #
721-BK-23134-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

Non-Stocked

$26.87

Min.: 100
Mult.: 100

Receivers

Balanced Armature

Board Mount

4 kHz

118 dBA

730 Ohms

Rectangular

Solder Pad

7.87 mm

5.59 mm

4 mm

Speakers & Transducers Balanced Armature Speaker

BK-29725-000
Knowles
100: $25.72
Non-Stocked

Mfr. Part #
BK-29725-000

Mouser Part #
721-BK-29725-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

Non-Stocked

$25.72

Min.: 100
Mult.: 100

Receivers

Balanced Armature

Board Mount

4 kHz

122.5 dBA

640 Ohms

Rectangular

Solder Pad

7.87 mm

5.59 mm

4.01 mm

Speakers & Transducers Balanced Armature Speaker

DTEC-30008-000
Knowles
100: $61.03
Non-Stocked

Mfr. Part #
DTEC-30008-000

Mouser Part #
721-DTEC-30008-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Learn More

Datasheet

Non-Stocked

$61.03

Quote

Min.: 100
Mult.: 100

Receivers

Balanced Armature

Panel Mount

470 Hz

123 dBA

31.5 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

7.87 mm

4.09 mm

5.59 mm

Speakers & Transducers Balanced Armature Speaker

ED-21914-000
Knowles
100: $26.06
Non-Stocked

Mfr. Part #
ED-21914-000

Mouser Part #
721-ED-21914-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

Non-Stocked

$26.06

Min.: 100
Mult.: 100

Receivers

Balanced Armature

Board Mount

5 kHz

104 dBA

2.9 kOhms

Rectangular

Solder Pad

6.3 mm

4.29 mm

3 mm

Balanced Armature Speakers & Transducers

Mouser Electronics®

Company

Resources

Support

70 Hz to 9.9 kHz
470 Hz
500 Hz
800 Hz
1 kHz
3.8 kHz
4 kHz
4.324 kHz
4.4 kHz
4.5 kHz
5 kHz
5.3 kHz
5.4 kHz
5.5 kHz
5.6 kHz
5.8 kHz
6 kHz
6.1 kHz
6.2 kHz
6.3 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
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
48 Ohms

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