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SparkFun Mini Spectral UV Sensor - AS7331 (Qwiic)

SEN-23518 · SparkFunActive

SparkFun Mini Spectral UV Sensor - AS7331 (Qwiic) photo

Measure UVA, UVB, and UVC radiation accurately in tight spaces with this mini 1" x 0.5" AS7331 sensor breakout, featuring four low-power operating modes and Qwiic communication. (SparkFun SEN-23518)

Part numberSEN-23518
ManufacturerSparkFun
CategorySensors › Light & Colour
Pins4

SparkFun Mini Spectral UV Sensor - AS7331 (Qwiic) pinout

PinNameTypeDescription
1GNDground
23V3power
3SDAbidirectional
4SCLinput

Schematic symbol and footprint

3V32SCL4SDA3GND1
Schematic symbol
1234MPMP
Footprint: JST-SH 4-pin SMD right-angle (SM04B-SRSS-TB) - Qwiic / STEMMA QT — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.

Where to buy

SupplierStockPriceStatus
Mouser0$33.38 (1+)View
DigiKey—$33.38 (1+)ActiveView

Stock and prices from the suppliers, checked 2026-10-08; excluding tax and shipping.

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