CNY70 from Vishay, 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	A	passive	Anode of the infrared emitter LED (lambda_p = 950 nm). Drive through a current-limit resistor; typical I_F = 20 mA, V_F ~= 1.25 V (max 1.6 V at 50 mA). Absolute max forward current 50 mA continuous, 3 A pulsed (t_p <= 10 us); reverse voltage max 5 V.
2	C	passive	Cathode of the infrared emitter LED. Return path for the LED forward current; typically tied to sensor GND through the current-limit resistor.
3	E	passive	Emitter of the NPN phototransistor detector. Normally tied to sensor GND (or to a sense resistor for emitter-follower readout).
4	C	passive	Collector of the NPN phototransistor detector. Pull up through a load resistor to Vcc (V_CEO max 32 V, I_C max 50 mA). Typical output current under test I_C = 1 mA at I_F = 20 mA with a Kodak neutral card (white side) at d = 0.3 mm; dark current I_CEO <= 200 nA at V_CE = 20 V.

Key specifications

Parameter	Value
Manufacturer	Vishay
Package	DIP-4
Category	Sensor
Pins	4

Ordering variants

Same part, different packaging or reel option.

CNY70

CAD (KiCad official)

Symbol: CNY70
Footprint: Package_DIP:DIP-4_W7.62mm
3D model: DIP-4 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`cny70.step`	158 KB	You want the bare part, or you mark your own boards.
`cny70-etched.step`	936 KB	You want the part with `CNY70` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 224 faces against 80 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Vishay datasheet (11 pp, sha256 cac0716ccafb5b0b, retrieved 2026-08-17, tier: manufacturer)
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