component

RPI-441C1E

Public Unreviewed

by Ray

ROHM Photointerrupters - Slot Type - Transistor Output, DIP-4. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentsensorrpi-441c1e
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗

Symbol & Footprint

Schematic Symbol

Open full view ↗

PCB Footprint

Open full view ↗
Contents

README

markdown

RPI-441C1E

ROHM · Photointerrupters - Slot Type - Transistor Output · DIP-4

RPI-441C1E from ROHM, 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 Anode passive Anode of the infrared emitter LED. Forward voltage VF = 1.4V typ (1.7V max) at IF = 10mA. Absolute max forward current IF = 35mA; reverse voltage VR = 5V max; power dissipation PD = 70mW. Drive through a current-limiting resistor from the positive supply.
2 Cathode passive Cathode of the infrared emitter LED. Returns LED forward current to ground (or to the low side of the drive circuit). Paired with pin 1 (Anode) as the input side of the photointerrupter.
3 Collector passive Collector of the NPN phototransistor (output side). Typically tied to VCC via a pull-up load resistor; the output signal is taken here. VCEO = 30V max, IC = 30mA max, PC = 80mW max. Typical IC = 0.55mA at VCE = 5V, IF = 10mA; VCE(sat) = 0.4V max at IF = 10mA / IC = 0.1mA. Dark current ICEO = 0.5µA max at VCE = 10V.
4 Emitter passive Emitter of the NPN phototransistor. Normally tied to ground (common-emitter configuration). VECO = 4.5V max (emitter-collector reverse).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • RPI-441C1E

CAD (KiCad official)

  • Symbol: RPI-441C1E
  • 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
rpi-441c1e.step 158 KB You want the bare part, or you mark your own boards.
rpi-441c1e-etched.step 1.4 MB You want the part with RPI-441C1E already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 373 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: ROHM datasheet (6 pp, sha256 6ca10eeeb0a59d96, 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