component
K10101D
Public Made by Adomby adom
Cosmo Electronics 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
markdownK10101D
Cosmo Electronics · Transistor, Photovoltaic Output Optoisolators · DIP-4
K10101D from Cosmo Electronics, 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 | input | Input LED anode; absolute maximum forward current IF is 50 mA, peak forward current IFM is 1 A, and reverse voltage VR is 6 V (Ta=25℃). |
| 2 | Cathode | passive | Input LED cathode; it shares the input LED ratings of IF 50 mA, IFM 1 A and VR 6 V (Ta=25℃). |
| 3 | Emitter | passive | Phototransistor emitter; the emitter-collector voltage VECO is 6 V maximum (Ta=25℃). |
| 4 | Collector | output | Phototransistor collector; the collector-emitter voltage VCEO is 80 V maximum, collector current IC is 50 mA maximum, and collector power dissipation PC is 150 mW (Ta=25℃). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Cosmo Electronics |
| Package | DIP-4 |
| Category | Optoisolators |
| Pins | 4 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Current transfer ratio, rank D | CTR | 300 | 600 | % | 4 | ||
| Current transfer ratio | CTR | 15 | % | IF=1mA, VCE=5V | 3 | ||
| Forward voltage | VF | 1.2 | 1.4 | V | IF=20mA | 3 | |
| Peak forward voltage | VFM | 3 | V | IFM=0.5A | 3 | ||
| Reverse current | IR | 10 | μA | VR=4V | 3 | ||
| Collector dark current | ICEO | 0.1 | μA | VCE=20V, IF=0 | 3 | ||
| Collector-emitter saturation voltage | VCE(sat) | 0.1 | 0.2 | V | IF=20mA, IC=1mA | 3 | |
| Floating capacitance | Cf | 0.6 | 1 | pF | V=0, f=1MHz | 3 | |
| Response time (rise) | tr | 4 | 18 | μs | VCE=2V, IC=2mA, RL=100Ω | 3 | |
| Response time (fall) | tf | 3 | 18 | μs | VCE=2V, IC=2mA, RL=100Ω | 3 | |
| Forward current | IF | 50 | mA | 3 | |||
| Peak forward current | IFM | 1 | A | 3 | |||
| Reverse voltage | VR | 6 | V | 3 | |||
| Input power dissipation | PD | 70 | mW | 3 | |||
| Collector-emitter voltage | VCEO | 80 | V | 3 | |||
| Emitter-collector voltage | VECO | 6 | V | 3 | |||
| Collector current | IC | 50 | mA | 3 | |||
| Collector power dissipation | PC | 150 | mW | 3 | |||
| Total power dissipation | Ptot | 200 | mW | 3 | |||
| Isolation voltage | Viso | 5000 | Vrms | 1 minute | 3 | ||
| Operating temperature | Topr | -55 | 115 | ℃ | 3 | ||
| Storage temperature | Tstg | -55 | 125 | ℃ | 3 | ||
| Soldering temperature | Tsol | 260 | ℃ | 10 seconds | 3 |
CAD (KiCad official)
- Symbol:
K10101D - Footprint:
Package_DIP:DIP-4_W7.62mm - 3D model: DIP-4 (KiCad packages3D, STEP)
- 3D model files:
k10101d-etched.step/k10101d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);k10101d.step/k10101d.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 2026-10-17, 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).