onsemi AR0521 · 5.0MP 1/2.5" rolling-shutter CMOS image sensor
AR0521 Sensor Specifications & Compatible M12 and C-Mount Lenses
The AR0521 from onsemi is a 1/2.5-inch rolling-shutter CMOS image sensor for industrial and embedded imaging. It produces 2592x1944 (5.0 MP) at 48 fps using 2.2um pixels across a 7.13mm diagonal, with HiSPi, MIPI CSI-2, or parallel output in color or mono. Commonlands matches M12 Lenses to this image circle and reports the calculated horizontal, vertical, and diagonal field of view for each match.
AR0521 specifications
| Part number | AR0521 |
|---|---|
| 제조사 | 온세미 |
| Family | AR0521 |
| 결의안 | 2592x1944 (5.0 MP) |
| 광학 형식 | 1/2.5인치 |
| Active area | 5.7 × 4.28 mm |
| Sensor diagonal | 7.13 mm |
| 픽셀 크기 | 2.2 µm |
| 셔터 | 구르기 |
| 최대 프레임 속도 | 48 fps |
| 인터페이스 | HiSPi / MIPI CSI-2 / 병렬 |
| Color / mono | Color / Mono |
Manufacturer datasheet: onsemi AR0521 product page
Compatible Commonlands Lenses for the AR0521 with Calculated Field of View
Each field of view below is calculated for the AR0521 active area (5.7 × 4.28 mm) from Commonlands’ per-lens field-of-view data, which reflects each lens’s real distortion rather than a focal-length-only estimate. Alongside the horizontal, vertical, and diagonal field of view, each row lists the lens aperture (F#), distortion, ingress protection, total track length (TTL), and rated resolution, so you can shortlist on optics and mechanics in one pass. Coverage shows whether the lens image circle covers the 7.13 mm sensor diagonal. Only lenses that cover the full diagonal are listed. Run exact working-distance and object-size numbers through the field of view calculator.
Engineering picks for the AR0521
- Best ~30° HFoV: Telephoto 10.4mm M12 Lens (CIL104) (10.4 mm, f/3.8). Why: the closest covering option to 30° horizontal, chosen for tight inspection framing and long read ranges. Field of view on the AR0521: 31° H × 23° V (38° diagonal); image circle covers the full sensor; verified 2026-07-02.
- Best ~60° HFoV: Low Distortion 5.2mm M12 Lens (CIL052) (5.2 mm, f/3.4). Why: the closest covering option to 60° horizontal, chosen for general-purpose machine-vision framing. Field of view on the AR0521: 58° H × 45° V (69° diagonal); image circle covers the full sensor; verified 2026-07-02.
- Best ~120° HFoV: Low Distortion 1.8mm M12 Lens (CIL018) (1.8 mm, f/2.8). Why: the closest covering option to 120° horizontal, chosen for wide navigation and room-scale coverage. Field of view on the AR0521: 120° H × 103° V (133° diagonal); image circle covers the full sensor; verified 2026-07-02.
- Lowest distortion: Low Distortion 4.4mm M12 Lens (CIL043) (4.4 mm, f/3.2). Why: measured -0.5% TV distortion, the flattest image among covering lenses. Field of view on the AR0521: 66° H × 52° V (78° diagonal); image circle covers the full sensor; verified 2026-07-02.
- Best low light: 8mm C-Mount Lens (CIL521) (8 mm, f/1.5). Why: the fastest covering aperture (f/1.5), which collects the most light per pixel. Field of view on the AR0521: 39° H × 30° V (48° diagonal); image circle covers the full sensor; verified 2026-07-02.
Commonlands offers 57 lens options for the AR0521: M12 Lenses and C-Mount Lenses from 1.5 mm to 100 mm focal length, spanning 3° to 190° horizontal field of view on the AR0521 active area.
covers means the lens image circle is at least as large as the 7.13 mm sensor diagonal, so the corners are not cropped. Need a focal length or coverage that is not listed here? Ask our engineers to confirm a match.
How to choose a lens for the AR0521
Start from the field of view your application needs, then read across to the focal length that produces it on the AR0521. Confirm the lens image circle covers the 7.13 mm diagonal so the corners are not cropped, and check the lens resolution is rated for 5.0 MP or higher so it resolves the 2.2 µm pixels. For exact working-distance and object-size numbers, run the figures through the Commonlands field of view calculator.
Sourcing a camera module around the AR0521? Commonlands manufactures the M12 Lenses and C-Mount Lenses above and ships from San Diego, with same-day shipping on in-stock lenses ordered by 12 PM PST. We also design and build custom MIPI CSI-2 camera modules that integrate the lens, the AR0521 sensor, and the carrier board, available from 1,000 units per year, and assemble consigned AR0521 boards with Commonlands lenses in our San Diego ISO 6 cleanroom from 100 to 100,000 units per year. Talk to an applications engineer.
Related guides and tools
AR0521 lens and camera module FAQ
What lens fits the AR0521 sensor?
Commonlands M12 Lenses and C-Mount Lenses whose image circle covers the AR0521’s 7.13 mm diagonal fit the sensor. The table above lists each compatible lens with its calculated horizontal, vertical, and diagonal field of view on the AR0521 active area (5.7 × 4.28 mm).
What is the AR0521 sensor size?
The AR0521 is a 1/2.5" format sensor with a 5.7 × 4.28 mm active area and a 7.13 mm diagonal, built on 2.2 µm pixels at 2592x1944 resolution.
Does Commonlands build a custom MIPI camera module for the AR0521?
Yes. Commonlands designs and builds custom MIPI CSI-2 camera modules that integrate the lens, the AR0521 sensor, and the carrier board, available from 1,000 units per year with active lens-to-sensor alignment and 100% MTF testing. Consigned assembly of your AR0521 boards with Commonlands lenses runs from 100 to 100,000 units per year in our San Diego ISO 6 cleanroom. Talk to an applications engineer to scope a module.
Match a lens to your AR0521 camera
Get an engineer-verified lens recommendation for your sensor, format, and field of view.
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