AT212-CuH-D

@@ -0,0 +1,50 @@+# AT212-CuH-D++**AOTE** · Solid State Relays (MOS Output) · DIP-4++AT212-CuH-D from AOTE, in a DIP-4. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | AN | passive | Input-side infrared LED anode. Drive with forward current (typ. 5 mA, max IF = 50 mA continuous; VF ≈ 1.3 V typ, 1.4 V max at IF = 5 mA) through a current-limiting resistor to turn the output MOSFET on. |+| 2 | CA | passive | Input-side infrared LED cathode. Return path for the LED drive current; typically tied to the control-side ground or driver's low-side. Reverse voltage rating VR = 6 V. |+| 3 | D1 | passive | Output-side photoMOSFET terminal 1. Bidirectional AC/DC switch pole (normally open); paired with D2 forms a 60 V peak, 500 mA continuous (1.5 A peak) load switch with RON typ 0.8 Ω, max 1.5 Ω. Off-state leakage ≤ 1 µA at VL = 60 V. |+| 4 | D2 | passive | Output-side photoMOSFET terminal 2. Bidirectional AC/DC switch pole (normally open); paired with D1. Ton typ 0.4 ms, Toff typ 0.25 ms at IF = 5 mA, IL = 0.5 A. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | AOTE |+| Package | DIP-4 |+| Category | Optoisolators |+| Pins | 4 |++## Ordering variants++Same part, different packaging or reel option.++- `AT212-CuH-D`+- `AT212-CuH-S`+- `AT212-CuH-M`+- `AT212-CuH-L`+- `AT212-CuH-D222-CuH-D`++## CAD (KiCad official)++- Symbol: `AT212-CuH-D`+- Footprint: `Package_DIP:DIP-4_W7.62mm`+- 3D model: DIP-4 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [AOTE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921406777536512) (14 pp, sha256 `d83e187eed71d9a5`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/at212-cuh-d-datasheet.pdf)

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