Audio Products

ED-21912-000

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Knowles Syfer

SPEAKERS & TRANSDUCERS BALANCED ARMATURE SPEAKER

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Audio Products

ED-21912-000

Active

Knowles Syfer

SPEAKERS & TRANSDUCERS BALANCED ARMATURE SPEAKER

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	ED-21912-000

Efficiency - dBA	106 dBA
Efficiency - Type	Sensitivity
Frequency Range [Max]	5 kHz
Frequency Range [Min]	200 Hz
Height - Seated (Max) [Max]	0.248 "
Height - Seated (Max) [Max]	6.3 mm
Impedance	725 Ohms
Port Location	Top
Shape	Rectangular
Size / Dimension [x]	0.248 in
Size / Dimension [x]	6.3 mm
Size / Dimension [y]	0.169 "
Size / Dimension [y]	4.29 mm
Technology	Magnetic
Termination	Solder Pads
Type	Receiver

ED/FED Series

Part	Shape	Efficiency - dBA	Impedance	Efficiency - Type	Technology	Port Location	Termination	Height - Seated (Max) [Max]	Height - Seated (Max) [Max]	Type	Frequency Range [Min]	Frequency Range [Max]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [y]	Material - Magnet
Knowles Syfer ED-21912-000	Rectangular	106 dBA	725 Ohms	Sensitivity	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver	200 Hz	5 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm
Knowles Syfer FED-23732-I34	Rectangular	102 dBA	680 Ohms		Magnetic		Solder Pads			Receiver Balanced Armature	200 Hz	4 kHz					Ferrite
Knowles Syfer ED-23147-000	Rectangular	102.5 dBA	87 Ohms	Sound Pressure Level (SPL)	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver Balanced Armature	200 Hz	4.4 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm
Knowles Syfer ED-27045-000	Rectangular	104 dBA	395 Ohms	Sound Pressure Level (SPL)	Magnetic	Side	Wire Leads			Receiver Balanced Armature	20 Hz	20 kHz
Knowles Syfer ED-27235-000	Rectangular				Magnetic		Solder Pads			Receiver Balanced Armature
Knowles Syfer ED-26565-000	Rectangular	102.5 dBA	128 Ohms		Magnetic	Side	Solder Pads	0.119 in	3.02 mm	Receiver Balanced Armature	200 Hz	4 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm
Knowles Syfer ED-23004-000	Rectangular	107 dBA	1.5 kOhms	Sensitivity	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver Balanced Armature	200 Hz	5 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm
Knowles Syfer FED-26792-I02	Rectangular	102.5 dBA	100 Ohms	Sound Pressure Level (SPL)	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver Balanced Armature	200 Hz	4 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm	Ferrite
Knowles Syfer ED-21983-000	Rectangular	106 dBA	725 Ohms	Sensitivity	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver Balanced Armature	200 Hz	5 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm
Knowles Syfer ED-21915-000	Rectangular	106 dBA	5.9 kOhms	Sensitivity	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver Balanced Armature	200 Hz	5 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	0	$ 17.69
	Tube	100	$ 17.69
Mouser	N/A	1	$ 27.29
		10	$ 22.25
		20	$ 20.41
		50	$ 19.28
		100	$ 18.81
		500	$ 17.86

Description

General part information

ED/FED Series

725 Ohms Receiver Speaker 200 Hz ~ 5 kHz Top Rectangular

Documents

Technical documentation and resources