component
EL357C
Public Made by Adomby adom
UMW 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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EL357C
UMW · Transistor, Photovoltaic Output Optoisolators · SOP-4-2.54mm
EL357C from UMW, 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 | Infrared emitting diode anode; the datasheet limits forward current to 60 mA continuous and 1 A peak (100 µs pulse, 100 Hz), with reverse voltage rated at 6 V. |
| 2 | Cathode | passive | Infrared emitting diode cathode; the LED reverse voltage is rated at 6 V maximum, with the 60 mA forward current limit applying to the anode-cathode path. |
| 3 | Emitter | passive | Phototransistor emitter; the emitter-collector breakdown voltage (VECO) is rated at 7 V maximum. |
| 4 | Collector | passive | Phototransistor collector; the collector-emitter voltage (VCEO) is rated at 80 V maximum and collector current at 50 mA maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-4-2.54mm |
| Category | Optoisolators |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
EL357C - Footprint:
Package_SO:SOP-4_3.8x4.1mm_P2.54mm - 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
- 3D model files:
el357c-etched.step/el357c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);el357c.step/el357c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (11 pp, sha256
cc585b5963fe432a, 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).
# EL357C
**UMW** · Transistor, Photovoltaic Output Optoisolators · SOP-4-2.54mm
EL357C from UMW, 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 | Infrared emitting diode anode; the datasheet limits forward current to 60 mA continuous and 1 A peak (100 µs pulse, 100 Hz), with reverse voltage rated at 6 V. |
| 2 | Cathode | passive | Infrared emitting diode cathode; the LED reverse voltage is rated at 6 V maximum, with the 60 mA forward current limit applying to the anode-cathode path. |
| 3 | Emitter | passive | Phototransistor emitter; the emitter-collector breakdown voltage (VECO) is rated at 7 V maximum. |
| 4 | Collector | passive | Phototransistor collector; the collector-emitter voltage (VCEO) is rated at 80 V maximum and collector current at 50 mA maximum. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOP-4-2.54mm |
| Category | Optoisolators |
| Pins | 4 |
## CAD (KiCad official)
- Symbol: `EL357C`
- Footprint: `Package_SO:SOP-4_3.8x4.1mm_P2.54mm`
- 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
- 3D model files: `el357c-etched.step` / `el357c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `el357c.step` / `el357c.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756954703248928768) (11 pp, sha256 `cc585b5963fe432a`, 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/el357c-datasheet.pdf)