component
EL851
Public Made by Adomby adom
Everlight Elec Transistor, Photovoltaic Output Optoisolators, DIP-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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EL851
Everlight Elec · Transistor, Photovoltaic Output Optoisolators · DIP-4
EL851 from Everlight Elec, 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 infrared emitting diode (input side), with absolute maximum forward current IF of 60 mA and reverse voltage VR of 6 V. |
| 2 | Cathode | passive | Cathode of the infrared emitting diode (input side), with the same absolute maximum limits of 60 mA forward current and 6 V reverse voltage. |
| 3 | Emitter | passive | Emitter of the phototransistor (output side), with an emitter-collector voltage limit VECO of 7 V. |
| 4 | Collector | passive | Collector of the phototransistor (output side), with a collector-emitter voltage limit VCEO of 350 V and a collector current limit IC of 50 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Everlight Elec |
| Package | DIP-4 |
| Category | Optoisolators |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
EL851 - Footprint:
Package_DIP:DIP-4_W7.62mm - 3D model: DIP-4 (KiCad packages3D, STEP)
- 3D model files:
el851-etched.step/el851-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);el851.step/el851.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Everlight Elec datasheet (13 pp, sha256
2aa838c43c09db73, 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).
# EL851
**Everlight Elec** · Transistor, Photovoltaic Output Optoisolators · DIP-4
EL851 from Everlight Elec, 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 infrared emitting diode (input side), with absolute maximum forward current IF of 60 mA and reverse voltage VR of 6 V. |
| 2 | Cathode | passive | Cathode of the infrared emitting diode (input side), with the same absolute maximum limits of 60 mA forward current and 6 V reverse voltage. |
| 3 | Emitter | passive | Emitter of the phototransistor (output side), with an emitter-collector voltage limit VECO of 7 V. |
| 4 | Collector | passive | Collector of the phototransistor (output side), with a collector-emitter voltage limit VCEO of 350 V and a collector current limit IC of 50 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Everlight Elec |
| Package | DIP-4 |
| Category | Optoisolators |
| Pins | 4 |
## CAD (KiCad official)
- Symbol: `EL851`
- Footprint: `Package_DIP:DIP-4_W7.62mm`
- 3D model: DIP-4 (KiCad packages3D, STEP)
- 3D model files: `el851-etched.step` / `el851-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `el851.step` / `el851.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Everlight Elec datasheet](https://en.everlight.com/wp-content/plugins/ItemRelationship/product_files/pdf/EL851.pdf) (13 pp, sha256 `2aa838c43c09db73`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/el851-datasheet.pdf)