.hide-partial { max-height: none; } .show-more { display: none; }

Knowles BF Series Speakers & Transducers

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 19

Applied Filters:

Manufacturer = Knowles Series = BF

Impedance

Shape

Diameter

Length

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 1500 RES

BF-3038-000
Knowles
1: $4.08
99In Stock

Mfr. Part #
BF-3038-000

Mouser Part #
721-BF-3038-000

Knowles

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 1500 RES

Datasheet

99In Stock

$4.08

$3.21

$2.93

$2.73

View

Min.: 1
Mult.: 1

Dampers

Acoustic

1.5 kOhms

Round

1.78 mm

1.65 mm

Speakers & Transducers 1.12DIA X 1.410MM SCREEN 4700 RES

BF-3163-000
Knowles
1: $4.88
307In Stock
495On Order

Mfr. Part #
BF-3163-000

Mouser Part #
721-BF-3163-000

Knowles

Speakers & Transducers 1.12DIA X 1.410MM SCREEN 4700 RES

Datasheet

307In Stock

495On Order

$4.88

$4.47

$2.16

$2.12

$1.98

Min.: 1
Mult.: 1

Dampers

Acoustic

4.7 kOhms

Round

1.12 mm

1.41 mm

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 3300 RES

BF-3036-000
Knowles
1: $4.10
200In Stock

Mfr. Part #
BF-3036-000

Mouser Part #
721-BF-3036-000

Knowles

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 3300 RES

Datasheet

200In Stock

$4.10

$3.22

$2.95

$2.89

View

Min.: 1
Mult.: 1

Dampers

Acoustic

3.3 kOhms

Round

1.78 mm

1.65 mm

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 2200 RES

BF-3037-000
Knowles
1: $4.10
500In Stock

Mfr. Part #
BF-3037-000

Mouser Part #
721-BF-3037-000

Knowles

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 2200 RES

Datasheet

500In Stock

$4.10

$3.22

$2.95

$2.89

View

Min.: 1
Mult.: 1

Dampers

Acoustic

2.2 kOhms

Round

1.78 mm

1.65 mm

Speakers & Transducers 1.37DIA X 1.57MM SCREEN 1500 RES

BF-3039-000
Knowles
1: $4.10
78In Stock

Mfr. Part #
BF-3039-000

Mouser Part #
721-BF-3039-000

Knowles

Speakers & Transducers 1.37DIA X 1.57MM SCREEN 1500 RES

Datasheet

78In Stock

$4.10

$3.22

$2.95

$2.89

View

Min.: 1
Mult.: 1

Dampers

Acoustic

1.5 kOhms

Round

1.37 mm

1.57 mm

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 1000 RES

BF-3035-000
Knowles
1: $4.10
86In Stock

Mfr. Part #
BF-3035-000

Mouser Part #
721-BF-3035-000

Knowles

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 1000 RES

Datasheet

86In Stock

$4.10

$3.22

$2.95

$2.89

View

Min.: 1
Mult.: 1

Dampers

Acoustic

1 kOhms

Round

1.78 mm

1.65 mm

Speakers & Transducers 1.12DIA X 1.410MM SCREEN 1500 RES

BF-1991-000
Knowles
1: $3.78
113In Stock

Mfr. Part #
BF-1991-000

Mouser Part #
721-BF-1991-000

Knowles

Speakers & Transducers 1.12DIA X 1.410MM SCREEN 1500 RES

Datasheet

113In Stock

$3.78

$2.96

$2.70

$2.64

View

Min.: 1
Mult.: 1

Dampers

Acoustic

1.5 kOhms

Round

1.12 mm

1.41 mm

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 680 RES

BF-1997-000
Knowles
1: $3.76
31In Stock

Mfr. Part #
BF-1997-000

Mouser Part #
721-BF-1997-000

Knowles

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 680 RES

Datasheet

31In Stock

$3.76

$2.95

$2.69

$2.62

View

Min.: 1
Mult.: 1

Dampers

Acoustic

680 Ohms

Round

1.78 mm

1.65 mm

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 330 RES

BF-3034-000
Knowles
1: $4.10
69In Stock

Mfr. Part #
BF-3034-000

Mouser Part #
721-BF-3034-000

Knowles

Speakers & Transducers 1.78DIA X 1.65MM SCREEN 330 RES

Datasheet

69In Stock

$4.10

$3.22

$2.95

$2.89

View

Min.: 1
Mult.: 1

Dampers

Acoustic

330 Ohms

1.78 mm

1.65 mm

Speakers & Transducers Plug 2.08 dia. 330 Res, Grey

BF-1999-000
Knowles
1: $3.36
1,125In Stock

Mfr. Part #
BF-1999-000

Mouser Part #
721-BF-1999-000

Knowles

Speakers & Transducers Plug 2.08 dia. 330 Res, Grey

Datasheet

1,125In Stock

$3.36

$2.64

$2.39

$2.24

View

Min.: 1
Mult.: 1

Dampers

Acoustic

330 Ohms

Round

2.08 mm

2.44 mm

Speakers & Transducers Plug 2.08 dia. 680 Res, White

BF-1859-000
Knowles
1: $3.36
3,336In Stock

Mfr. Part #
BF-1859-000

Mouser Part #
721-BF-1859-000

Knowles

Speakers & Transducers Plug 2.08 dia. 680 Res, White

Datasheet

3,336In Stock

$3.36

$2.64

$2.41

$2.24

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: $2.79
2,535In Stock

Mfr. Part #
BF-1922-000

Mouser Part #
721-BF-1922-000

Knowles

Speakers & Transducers Plug 2.08 dia. 3300 Res, Orange

Datasheet

2,535In Stock

$2.79

$2.20

$2.00

$1.86

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: $3.75
2,504In Stock

Mfr. Part #
BF-1988-000

Mouser Part #
721-BF-1988-000

Knowles

Speakers & Transducers 1.12DIA X 1.410MM SCREEN 680 RES

Datasheet

2,504In Stock

$3.75

$2.95

$2.69

$2.50

View

Min.: 1
Mult.: 1

Dampers

Acoustic

680 Ohms

Round

1.12 mm

1.41 mm

Speakers & Transducers Plug 2.08 dia. 1500 Res, Green

BF-1861-000
Knowles
1: $3.36
338In Stock

Mfr. Part #
BF-1861-000

Mouser Part #
721-BF-1861-000

Knowles

Speakers & Transducers Plug 2.08 dia. 1500 Res, Green

Datasheet

338In Stock

$3.36

$2.64

$2.41

$2.24

View

Min.: 1
Mult.: 1

Dampers

Acoustic

1.5 kOhms

Round

2.08 mm

2.44 mm

Speakers & Transducers Plug 2.08 dia. 2200 Res, Red

BF-1921-000
Knowles
1: $3.36
280In Stock
2,000Expected 2026-03-27

Mfr. Part #
BF-1921-000

Mouser Part #
721-BF-1921-000

Knowles

Speakers & Transducers Plug 2.08 dia. 2200 Res, Red

Datasheet

280In Stock

2,000Expected 2026-03-27

$3.36

$2.64

$2.41

$2.24

View

Min.: 1
Mult.: 1

Dampers

Acoustic

2.2 kOhms

Round

2.08 mm

2.44 mm

Speakers & Transducers Plug 2.08 dia. 4700 Res, Yellow

BF-1923-000
Knowles
1: $3.36
244In Stock

Mfr. Part #
BF-1923-000

Mouser Part #
721-BF-1923-000

Knowles

Speakers & Transducers Plug 2.08 dia. 4700 Res, Yellow

Datasheet

244In Stock

$3.36

$2.64

$2.41

$2.24

View

Min.: 1
Mult.: 1

Dampers

Acoustic

4.7 kOhms

Round

2.08 mm

2.44 mm

Speakers & Transducers 1.12DIA X 1.410MM SCREEN 2200 RES

BF-1995-000
Knowles
1: $3.76
550In Stock

Mfr. Part #
BF-1995-000

Mouser Part #
721-BF-1995-000

Knowles

Speakers & Transducers 1.12DIA X 1.410MM SCREEN 2200 RES

Datasheet

550In Stock

$3.76

$2.95

$2.69

$2.50

View

Min.: 1
Mult.: 1

Dampers

Acoustic

2.2 kOhms

Round

1.12 mm

1.41 mm

Speakers & Transducers 2.08DIA X 2.44MM PLUG, 1000 RES

BF-1860-000
Knowles
1: $3.36
541In Stock

Mfr. Part #
BF-1860-000

Mouser Part #
721-BF-1860-000

Knowles

Speakers & Transducers 2.08DIA X 2.44MM PLUG, 1000 RES

Datasheet

541In Stock

$3.36

$2.64

$2.41

$2.24

View

Min.: 1
Mult.: 1

Dampers

Acoustic

1 kOhms

Round

2.08 mm

2.44 mm

Speakers & Transducers EMC

BF-9778-000
Knowles
1: $3.10
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
BF-9778-000

Mouser Part #
721-BF9778000

Knowles

Speakers & Transducers EMC

Datasheet

Non-Stocked Lead-Time 12 Weeks

$3.10

$2.44

$2.23

$2.16

View

Min.: 1
Mult.: 1

Dampers

Acoustic

2.2 kOhms

Round

1.37 mm

1.57 mm

Knowles BF Series Speakers & Transducers

Mouser Electronics®

Company

Resources

Support