EL817C / PC817 / FL817 Series Optocoupler ICs DIP-4 Package
These optoisolators are widely used in microcontroller input/output isolation, SMPS feedback circuits, and industrial switching applications. With excellent current transfer ratio (CTR) options and high isolation voltage, they provide robust performance and electrical safety.
EL817C / PC817 / FL817 Series Optocoupler ICs DIP-4 Package
Available:In Stock
- Product SKU: INTEG225
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Specification
Description
EL817C / PC817 / FL817 Series Optocoupler ICs – DIP-4 Package
The EL817C / PC817 / FL817 series comprises popular, single-channel optocoupler ICs designed for signal isolation between low-voltage logic and high-voltage circuits. Each IC contains a high-efficiency infrared LED optically coupled to a silicon NPN phototransistor, encapsulated in a compact DIP-4 through-hole package.These optoisolators are widely used in microcontroller input/output isolation, SMPS feedback circuits, and industrial switching applications. With excellent current transfer ratio (CTR) options and high isolation voltage, they provide robust performance and electrical safety.
Technical Details
- IC Series: EL817C / PC817 / FL817
- Type: Single-Channel Optocoupler (Phototransistor Output)
- Input: Infrared LED
- Output: NPN Phototransistor
- Isolation Voltage: 5000Vrms (1 minute)
- CTR (Current Transfer Ratio): 50% to 600% (model/grade dependent)
- Collector-Emitter Voltage (VCEO): 35V
- Input Forward Voltage: ~1.2V typical
- Input Forward Current: 20mA typical, 50mA max
- Response Time: Rise ~4µs, Fall ~3µs (typical)
- Package: DIP-4 (Dual Inline Package)
- Mounting Type: Through-Hole
- Operating Temperature Range: -30°C to +100°C
Features
- High isolation voltage (5000Vrms)
- Single-channel configuration
- Compact and economical DIP-4 package
- High CTR versions available (A/B/C/D grades)
- Fast switching performance
- Low input drive current
- RoHS compliant and widely used across industry
Applications
- Microcontroller input/output isolation
- Switching power supply (SMPS) feedback control
- Signal isolation in industrial systems
- AC mains detection and zero-crossing circuits
- Consumer electronics and smart appliance interfaces
Physical Attributes
- Package: DIP-4
- Pin Count: 4
- Dimensions: ~6.5mm x 4.5mm x 3.5mm (L x W x H)
- Mounting Type: Through-Hole
- Weight: ~0.2g
Package Includes
- 1 x EL817C / PC817 / FL817 Optocoupler IC (DIP-4 Package)