component
K10101B
Public Made by Adomby adom
Cosmo Electronics Transistor, Photovoltaic Output Optoisolators, DIP-4. Datasheet-verified pinout, 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
markdownK10101B
Cosmo Electronics · Transistor, Photovoltaic Output Optoisolators · DIP-4
K10101B from Cosmo Electronics, 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 | input | Infrared LED anode; forward current input terminal; maximum forward current 50 mA; provides 5000 Vrms isolation from output. |
| 2 | Cathode | power_in | Infrared LED cathode; ground return for LED forward current. |
| 3 | Emitter | power_in | Phototransistor emitter; ground reference terminal; emitter-collector voltage maximum 6 V. |
| 4 | Collector | output | Phototransistor collector; output signal terminal; collector-emitter voltage maximum 80 V; collector current maximum 50 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Cosmo Electronics |
| Package | DIP-4 |
| Category | Optoisolators |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
K10101B - Footprint:
Package_DIP:DIP-4_W7.62mm - 3D model: DIP-4 (KiCad packages3D, STEP)
- 3D model files:
k10101b-etched.step/k10101b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);k10101b.step/k10101b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Cosmo Electronics datasheet (12 pp, sha256
8fc45aaf99a1c8d5, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).