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EL357C
OPTOISOLATOR 3.75KV 1CH TRANS SOP4
UMW
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Design a Custom BoardAbout This Component
Single-channel optoisolator combining an AlGaAs infrared LED with a silicon phototransistor detector, providing 3750V RMS isolation in a 4-pin SOP package. Features DC input with transistor output, 60mA forward current rating, and operating range of -55°C to 110°C. Ideal for switching power supplies, programmable controllers, and industrial equipment requiring galvanic isolation.
Package: SOP-4 (3.8×4.1mm, P2.54mm) · 4 pins
Why does this need a breakout?
This 4-pin SOP photorelay is too small and tightly pitched (2.54mm) for reliable hand soldering or breadboard use. A breakout board brings the pins to standard 0.1-inch spacing, enabling rapid prototyping of optoisolated switching circuits without the frustration of soldering microscopic leads or dealing with isolation requirements.
Specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | UMW |
| Part Number | EL357C |
| Package | SOP-4 (3.8×4.1mm, P2.54mm) |
| Pin Count | 4 |
| Current - DC Forward (If) (Max) | 60 mA |
| Current - Output / Channel | 50mA |
| Input Type | DC |
| Number of Channels | 1 |
| Output Type | Transistor |
| Rise / Fall Time (Typ) | 3µs, 4µs |
| Voltage - Forward (Vf) (Typ) | 1.24V |
| Voltage - Isolation | 3750Vrms |
What's Included
BILL OF MATERIALS
- 1x EL357C soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL