CGQ-012A Ambient Light Sensor

The CGQ-012A is an ambient-light sensor assembly, designation CGQ-012A-LUX-202201. The defined output is the ambient-light signal on pin 2, a low-level, low-side switch output. It runs from a 4.5 – 5.5 V supply, tolerates reverse voltage to 30 V, and is sealed to IP53, built to QC/T 413-2002 and the U201 sunlight-environment sensor conditions.

CGQ-012A technical specifications
Designation	CGQ-012A-LUX-202201
Working voltage	4.5 – 5.5 V
Defined output	Ambient-light signal, low-level output, pin 2 (LSD). Pins 3, 4 and 5 reserved
Working temperature	−30 to +85 °C
Storage temperature	−40 to +90 °C
Reverse-voltage tolerance	30 V max
EMC	Meets the industry EMC standard
Applicable standard	QC/T 413-2002 + U201 sunlight-environment sensor technical conditions
Plastic-part tolerances	SJ/T 10628-1995 grade 7 (unless otherwise noted)
Mating connector	Yazaki 7283-8660 / 7116-1670-02
Protection grade	IP53
Quality system	IATF 16949 manufacturing

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Typical applications

New-energy vehicle Commercial vehicle Construction machinery

Connector

CGQ-012A six-pin definition.
Pin	Signal
1	Power ground
2	Ambient-light sensor signal — output / switch (LSD)
3	Temperature sensor signal (reserved) — input / analogue (AD)
4	Sunlight-sensor ground (reserved)
5	Sunlight-sensor signal (reserved) — output / analogue (AD)
6	Supply, +5 V

Choosing across the light and rain sensor family

Youlai builds two related cabin light sensors, and the split is the housing and the defined channel. The CGQ-012A is the ambient-light assembly. Temperature and sunlight positions on the same connector are reserved.

Where the cab also automates the wipers, the CGQ-024A light-and-rain sensor adds a rain-detection channel. The glass at the installation area and the rated voltage are on that page.

Manufacturing and testing

Built under IATF 16949 with APQP project planning and a PPAP package available for OEM programmes. EMC pre-compliance screening and a check of the published temperature range are run on a sample basis in our in-house lab when a programme requires fresh data. Certified EMC testing is performed at third-party accredited laboratories when the programme requires it.

How to ask

The CGQ-012A belongs to the Switches & Sensors family. For the wider sensor programme — TPMS, rain-light and fuel-level — see the commercial vehicle sensor manufacturer page. The pin definition is in the table above. To request a drawing or a fleet configuration, use the contact page. These help if you already have them: target vehicle programme, expected annual volume, mounting position and connector preference. Drawings welcome.

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