Parts from ScioSense, ED Inventory

RFID Reader IC 110kHz ~ 150kHz SPI 2.4V ~ 3.6V 16-VQFN Exposed Pad

Distributor	SKU	Stock	MOQ	1	10	50	100	1,000	10,000
DigiKey	AS3932-BQFTDKR-ND	15699		$5.36	$4.10	$3.72	$3.26	$2.72	$2.54

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RFID Reader IC 110kHz ~ 150kHz SPI 2.4V ~ 3.6V 16-VQFN Exposed Pad

Distributor	SKU	Stock	MOQ	1	10	50	100	1,000	10,000
DigiKey	AS3930-BQFTCT-ND	71807	1	$3.92	$3.50	$3.15	$2.87	$2.10	$2.10

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Distributor	SKU	Stock	MOQ	1	10	50	100	1,000	10,000
DigiKey	2618-AS6500-FQFMDKR-ND	182		$30.39	$23.82	$20.09	$18.68	$16.18	$16.18

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Capacitance-to-Digital Converter 500k I2C, SPI 32-QFN (5x5)

Distributor	SKU	Stock	MOQ	1	10	50	100	1,000	10,000
DigiKey	2618-PCAP02-EVA-KITV1.0-ND	0		$312.50	$6.75	$6.44	$5.59	$4.24	$3.93

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PCap02 Capacitance-to-Digital Converter Interface Evaluation Board

Distributor	SKU	Stock	MOQ	1	10	50	100	1,000	10,000
DigiKey	2618-PCAP02-EVA-KITV1.0-ND	0		$312.50	$312.50	$312.50	$312.50	$312.50	$312.50

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RFID Reader IC 15kHz ~ 150kHz 2.4V ~ 3.6V 16-TSSOP (0.173", 4.40mm Width)

Distributor	SKU	Stock	MOQ	1	10	50	100	1,000	10,000
DigiKey	AS3933-BTSTDKR-ND	6577		$5.51	$4.92	$4.43	$4.04	$2.76	$2.62

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Distributor	SKU	Stock	MOQ	1	10	50	100	1,000	10,000
DigiKey	TDC-GP30YA3K-ND	0	3000	$10.77	$8.50	$6.99	$6.99	$5.53	$5.26

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Distributor	SKU	Stock	MOQ	1	10	50	100	1,000	10,000
DigiKey	2618-AS6500-FQFMDKR-ND	299		$27.45	$22.87	$20.26	$19.60	$18.30	$18.30

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Air Quality Sensor I2C, SPI

Distributor	SKU	Stock	MOQ	1	10	50	100	1,000	10,000
DigiKey	2618-ENS160-BGLTDKR-ND	433		$10.07	$8.06	$7.46	$6.45	$6.04	$5.64

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Distributor	SKU	Stock	MOQ	1	10	50	100	1,000	10,000
DigiKey	TDC-GP30YD-F013KDKR-ND	0		$10.05	$7.93	$6.52	$5.64	$5.45	$0.00