DFG-30445-000 Knowles Acoustics, DFG-30445-000 Datasheet - Page 17

• Manufacturer Part Number: DFG-30445-000
• Description: MIC SUPER CARTOID UNI DIRECT FG
• Manufacturer: Knowles Acoustics
• Series: DFGr
• Type: Electret Condenserr

Specifications of DFG-30445-000

• Sensitivity: -69dB ±4dB
• Voltage - Rated: 1.3V
• Current: 50µA
• Size / Dimension: Circular - 2.56mm Dia x 2.69mm H
• S/n Ratio: -
• Filter Type: 13pF
• Impedance: 1.7K Ohm
• Frequency: 100Hz ~ 5kHz
• Termination: Solder Pads
• Direction: Unidirectional
• Port Location: Bottom and Top
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 423-1150

Note: All performance curves are typical
Specialty Transducer Speakers
Knowles sub-miniature speaker designs are based on balanced armature technology (BAX)
and are utilized in a variety of high performance audio and communication products. Knowles
balanced armature speakers are available in several sizes and efficiencies, which can be finely
tuned to meet your specific performance requirements. They are designed for use in in-ear
applications, including earphones and communication earpieces, or be sub-assembled by
Knowles for premium consumer electronics accessories.
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TWFK SERIES
The world’s smallest dual balanced armature speaker, the TWFK is designed for
pro-audio in-ear applications. Enables customized cross-over systems to achieve
target frequency response in a package size smaller than the ED Series.
FK/DFK SERIES
5.00 x 2.73 x 1.93 (mm) (FK), 5.00 X 2.73 X 3.86 (mm) (DFK)
The world’s smallest balanced-armature speaker, the FK Series is designed
for applications where size is the most important design concern.
High efficiency, stability and reliability
Customizable performance and port locations
Ideal for premium in-ear designs
Component and subassembly solutions
Model
TWFK-30017-000
Model
FK-23451-000
FK-23466-000
FK-26260-000
DFK-30041-000
– Dual Balanced Armature Speaker 5.00 x 2.73 x 3.86 (mm)
– Balanced Armature Speaker
Port Location
Port Location
12S
12S
12S
12S
12S
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Single sound port for simplified earphone design
Extreme wideband frequency response
Unique woofer/tweeter combination
Enables leading-edge earphone designs for miniature size
and performance
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Two-terminal zero-bias configuration
Undamped, screen damped, and internally damped responses
Wide range of coil impedances
DFK model is a dual FK
1 kHz (dB SPL)
1 kHz (dB SPL)
Sensitivity @
Sensitivity @
95.5
95.5
99.7
95
96
www.knowles.com
1st Peak (dB SPL)
1st Peak (dB SPL)
SPECIALTY TRANSDUCERS – Speakers
Sensitivity @
Sensitivity @
108.5
108.5
105.5
103
105
1st Peak (dB SPL)
1st Peak (dB SPL)
Max SPL @
Max SPL @
118.5
118.5
115.5
115.5
113
110
105
100
120
115
110
105
100
95
90
85
80
75
70
95
90
85
80
100
100
DC Resistance
2
2
DC Resistance
3
3
(Ohms)
(Ohms)
360
360
135
100
25
4
4
5 6 7 8 9
5 6 7 8 9
FREQUENCY (Hz)
FREQUENCY (Hz)
1k
1k
Impedance @ 500 Hz
Impedance @ 500 Hz
2
2
(Ohms)
(Ohms)
450
450
180
133
3
3
31
4
4
5 6 7 8 9
5 6 7 8 9
10k
10k
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