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Series	Manufacturer	Type	Output Type	Direction	Frequency Range	Sensitivity	S/N Ratio	Impedance	Voltage - Rated	Current - Supply	Port Location	Seal Rating	Termination	Size / Dimension	Height (Max)	Shape	Packaging

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Digi-Key Part Number	Manufacturer Part Number	Description	Series	Manufacturer	Type	Output Type	Direction	Frequency Range	Sensitivity	S/N Ratio	Impedance	Voltage - Rated	Current - Supply	Port Location	Seal Rating	Termination	Size / Dimension	Height (Max)	Shape	Packaging	Quantity Available	Minimum Quantity	Unit Price

423-1128-1-ND	SPM0406HE3H-SB	MIC MEMS ANALOG OMNI -22DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-22dB ±3dB @ 94dB SPL	59dB	100 Ohm	1.5 ~ 5.5V	500µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Cut Tape (CT) Alternate Packaging	4,636 - Immediate	1	2.01000
423-1128-6-ND	SPM0406HE3H-SB	MIC MEMS ANALOG OMNI -22DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-22dB ±3dB @ 94dB SPL	59dB	100 Ohm	1.5 ~ 5.5V	500µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Digi-Reel® Alternate Packaging	4,636 - Immediate	1	Calculate
423-1133-2-ND	SPU0409HD5H-PB	MIC MEMS ANALOG OMNI -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-42dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	250µA	Top	None	Surface Mount	3.76mm L x 2.95mm W	1.00mm	Rectangular	Tape & Reel (TR) Alternate Packaging	1,200 - Immediate	1,200	0.85413
423-1133-1-ND	SPU0409HD5H-PB	MIC MEMS ANALOG OMNI -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-42dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	250µA	Top	None	Surface Mount	3.76mm L x 2.95mm W	1.00mm	Rectangular	Cut Tape (CT) Alternate Packaging	3,658 - Immediate	1	2.01000
423-1133-6-ND	SPU0409HD5H-PB	MIC MEMS ANALOG OMNI -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-42dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	250µA	Top	None	Surface Mount	3.76mm L x 2.95mm W	1.00mm	Rectangular	Digi-Reel® Alternate Packaging	3,658 - Immediate	1	Calculate
423-1137-2-ND	SPM0423HE4H-WB	MIC MEMS DIGITAL PDM OMNI -26DB	SiSonic™	Knowles	MEMS (Silicon)	Digital, PDM	Omnidirectional	100Hz ~ 10kHz	-26dB ±4dB @ 94dB SPL	56dB	-	1.6 ~ 3.6V	600µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Tape & Reel (TR) Alternate Packaging	3,600 - Immediate	1,200	0.88518
423-1137-1-ND	SPM0423HE4H-WB	MIC MEMS DIGITAL PDM OMNI -26DB	SiSonic™	Knowles	MEMS (Silicon)	Digital, PDM	Omnidirectional	100Hz ~ 10kHz	-26dB ±4dB @ 94dB SPL	56dB	-	1.6 ~ 3.6V	600µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Cut Tape (CT) Alternate Packaging	4,164 - Immediate	1	2.08000
423-1137-6-ND	SPM0423HE4H-WB	MIC MEMS DIGITAL PDM OMNI -26DB	SiSonic™	Knowles	MEMS (Silicon)	Digital, PDM	Omnidirectional	100Hz ~ 10kHz	-26dB ±4dB @ 94dB SPL	56dB	-	1.6 ~ 3.6V	600µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Digi-Reel® Alternate Packaging	4,164 - Immediate	1	Calculate
423-1083-2-ND	SPM0404HE5H-PB	MIC MEMS ANALOG OMNI -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-42dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	250µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Tape & Reel (TR) Alternate Packaging	14,400 - Immediate	1,200	1.99420
423-1083-1-ND	SPM0404HE5H-PB	MIC MEMS ANALOG OMNI -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-42dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	250µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Cut Tape (CT) Alternate Packaging	15,474 - Immediate	1	3.58000
423-1083-6-ND	SPM0404HE5H-PB	MIC MEMS ANALOG OMNI -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-42dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	250µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Digi-Reel® Alternate Packaging	15,474 - Immediate	1	Calculate
423-1141-2-ND	SPM0407HE3H-SB	MIC MEMS ANALOG OMNI -22, -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-32dB ±10dB @ 94dB SPL	59dB	100 Ohm	1.5 ~ 5.5V	370µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Tape & Reel (TR) Alternate Packaging	1,200 - Immediate	1,200 Non-Stock	2.06117
423-1141-1-ND	SPM0407HE3H-SB	MIC MEMS ANALOG OMNI -22, -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-32dB ±10dB @ 94dB SPL	59dB	100 Ohm	1.5 ~ 5.5V	370µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Cut Tape (CT) Alternate Packaging	2,075 - Immediate	1 Non-Stock	3.63000
423-1141-6-ND	SPM0407HE3H-SB	MIC MEMS ANALOG OMNI -22, -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-32dB ±10dB @ 94dB SPL	59dB	100 Ohm	1.5 ~ 5.5V	370µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Digi-Reel® Alternate Packaging	2,075 - Immediate	1 Non-Stock	Calculate
423-1084-2-ND	SPM0408HD5H-SB	MIC MEMS ANALOG OMNI -22DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-22dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	350µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Tape & Reel (TR) Alternate Packaging	20,400 - Immediate	1,200	2.08604
423-1084-1-ND	SPM0408HD5H-SB	MIC MEMS ANALOG OMNI -22DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-22dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	350µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Cut Tape (CT) Alternate Packaging	21,269 - Immediate	1	3.75000
423-1084-6-ND	SPM0408HD5H-SB	MIC MEMS ANALOG OMNI -22DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-22dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	350µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Digi-Reel® Alternate Packaging	21,269 - Immediate	1	Calculate
423-1135-2-ND	SPM0410HR5H-PB	MIC MEMS ANALOG OMNI -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-42dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	250µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Tape & Reel (TR) Alternate Packaging	3,600 - Immediate	1,200 Non-Stock	2.08604
423-1135-1-ND	SPM0410HR5H-PB	MIC MEMS ANALOG OMNI -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-42dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	250µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Cut Tape (CT) Alternate Packaging	4,001 - Immediate	1 Non-Stock	3.75000
423-1135-6-ND	SPM0410HR5H-PB	MIC MEMS ANALOG OMNI -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-42dB ±3dB @ 94dB SPL	59dB	300 Ohm	1.5 ~ 3.6V	250µA	Top	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Digi-Reel® Alternate Packaging	4,001 - Immediate	1 Non-Stock	Calculate
423-1125-2-ND	SPM0404LE5H-QB	MIC MEMS ANALOG OMNI -38DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-38dB ±3dB @ 94dB SPL	62dB	300 Ohm	1.5 ~ 3.6V	250µA	Bottom	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Tape & Reel (TR) Alternate Packaging	1,200 - Immediate	1,200 Non-Stock	2.16476
423-1125-1-ND	SPM0404LE5H-QB	MIC MEMS ANALOG OMNI -38DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-38dB ±3dB @ 94dB SPL	62dB	300 Ohm	1.5 ~ 3.6V	250µA	Bottom	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Cut Tape (CT) Alternate Packaging	2,493 - Immediate	1 Non-Stock	3.89000
423-1125-6-ND	SPM0404LE5H-QB	MIC MEMS ANALOG OMNI -38DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-38dB ±3dB @ 94dB SPL	62dB	300 Ohm	1.5 ~ 3.6V	250µA	Bottom	None	Surface Mount	4.72mm L x 3.76mm W	1.35mm	Rectangular	Digi-Reel® Alternate Packaging	2,493 - Immediate	1 Non-Stock	Calculate
423-1140-2-ND	SPQ0410HE5H-PB	MIC MEMS ANALOG OMNI -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-42dB ±3dB @ 94dB SPL	59dB	400 Ohm	1.5 ~ 3.6V	250µA	Top	None	Surface Mount	3.76mm L x 2.24mm W	1.20mm	Rectangular	Tape & Reel (TR) Alternate Packaging	1,200 - Immediate	1,200	2.17788
423-1140-1-ND	SPQ0410HE5H-PB	MIC MEMS ANALOG OMNI -42DB	SiSonic™	Knowles	MEMS (Silicon)	Analog	Omnidirectional	100Hz ~ 10kHz	-42dB ±3dB @ 94dB SPL	59dB	400 Ohm	1.5 ~ 3.6V	250µA	Top	None	Surface Mount	3.76mm L x 2.24mm W	1.20mm	Rectangular	Cut Tape (CT) Alternate Packaging	2,138 - Immediate	1	3.91000