component
EL357N
Public Made by Adomby adom
Everlight Elec Transistor, Photovoltaic Output Optoisolators, SOP-4-2.54mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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EL357N
Everlight Elec · Transistor, Photovoltaic Output Optoisolators · SOP-4-2.54mm
EL357N from Everlight Elec, in a SOP-4-2.54mm. 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 input infrared emitting diode; the isolation test note on page 2 shorts pins 1 and 2 together for the input side. |
| 2 | Cathode | passive | Cathode of the input infrared emitting diode; the device has a reverse voltage rating of 6 V and the datasheet states it is not designed for reverse operation. |
| 3 | Emitter | passive | Emitter of the output phototransistor; the emitter-collector breakdown voltage BVECO is specified at a minimum of 7 V (IE = 0.01 mA). |
| 4 | Collector | passive | Collector of the output phototransistor; the collector-emitter breakdown voltage BVCEO is specified at a minimum of 80 V (IC = 0.1 mA) and the collector current rating is 50 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Everlight Elec |
| Package | SOP-4-2.54mm |
| Category | Optoisolators |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
EL357N - Footprint:
Package_SO:SOP-4_3.8x4.1mm_P2.54mm - 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
- 3D model files:
el357n-etched.step/el357n-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);el357n.step/el357n.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Everlight Elec datasheet (14 pp, sha256
feae46b4e0b5b619, retrieved 2026-10-12, 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).
# EL357N
**Everlight Elec** · Transistor, Photovoltaic Output Optoisolators · SOP-4-2.54mm
EL357N from Everlight Elec, in a SOP-4-2.54mm. 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 input infrared emitting diode; the isolation test note on page 2 shorts pins 1 and 2 together for the input side. |
| 2 | Cathode | passive | Cathode of the input infrared emitting diode; the device has a reverse voltage rating of 6 V and the datasheet states it is not designed for reverse operation. |
| 3 | Emitter | passive | Emitter of the output phototransistor; the emitter-collector breakdown voltage BVECO is specified at a minimum of 7 V (IE = 0.01 mA). |
| 4 | Collector | passive | Collector of the output phototransistor; the collector-emitter breakdown voltage BVCEO is specified at a minimum of 80 V (IC = 0.1 mA) and the collector current rating is 50 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Everlight Elec |
| Package | SOP-4-2.54mm |
| Category | Optoisolators |
| Pins | 4 |
## CAD (KiCad official)
- Symbol: `EL357N`
- Footprint: `Package_SO:SOP-4_3.8x4.1mm_P2.54mm`
- 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
- 3D model files: `el357n-etched.step` / `el357n-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `el357n.step` / `el357n.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Everlight Elec datasheet](https://www.everlighteurope.com/custom/files/datasheets/DPC-0000014.pdf) (14 pp, sha256 `feae46b4e0b5b619`, retrieved 2026-10-12, 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/el357n-datasheet.pdf)