component
TLP781
Public Made by Adomby adom
TOSHIBA Transistor, Photovoltaic Output Optoisolators, DIP-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTLP781
TOSHIBA · Transistor, Photovoltaic Output Optoisolators · DIP-4
TLP781 from TOSHIBA, in a DIP-4. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Anode | passive | Anode of the gallium arsenide infrared emitting diode (input side), whose reverse voltage rating VR is 5 V maximum and whose forward current is rated 60 mA maximum. |
| 2 | Cathode | passive | Cathode of the gallium arsenide infrared emitting diode (input side), with a reverse voltage rating VR of 5 V. |
| 3 | Emitter | passive | Emitter of the silicon phototransistor (output side), with an emitter-collector voltage VECO rating of 7 V. |
| 4 | Collector | passive | Collector of the silicon phototransistor (output side), rated for collector-emitter voltage VCEO of 80 V and collector current IC of 50 mA maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| Package | DIP-4 |
| Category | Optoisolators |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
TLP781 - Footprint:
Package_DIP:DIP-4_W7.62mm - 3D model: DIP-4 (KiCad packages3D, STEP)
- 3D model files:
tlp781-etched.step/tlp781-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tlp781.step/tlp781.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOSHIBA datasheet (15 pp, sha256
8699e98cf3bf575a, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).