IL300-F: High-Performance Photovoltaic Optoisolator by Vishay Semiconductor

The IL300-F from Vishay Semiconductor Opto Division represents the gold standard in optoisolation technology, combining precision signal transfer with robust electrical isolation. This in-depth guide explores every aspect of the IL300-F to help engineers and designers make informed decisions for their high-voltage applications.

Comprehensive Product Overview

Manufacturer & Product Line

Vishay Semiconductor, a global leader in optoelectronic components, designed the IL300-F as part of their premium isolation product family. The device maintains active production status with full manufacturer support, ensuring long-term availability for critical designs.

Detailed Technical Specifications

Unmatched Isolation Performance

• Isolation Voltage: 5300Vrms (tested per UL1577)
• Creepage Distance: 8.3mm minimum
• Comparative Tracking Index (CTI): >400V

These specifications make the IL300-F suitable for medical equipment, industrial controls, and renewable energy systems requiring reinforced insulation.

Advanced Photovoltaic Technology

• Output Type: Dual photovoltaic cells with servo feedback
• Linearity Error: 0.05% typical
• Gain Stability: 20ppm/ C temperature coefficient

The innovative dual-cell design achieves remarkable linearity, outperforming conventional optocouplers in precision analog applications.

Electrical Characteristics

Parameter	Value
Forward Voltage (Vf)	1.25V typical
Input Current (If)	10-60mA operating range
Output Voltage	500mV maximum
Output Current	70 A typical per channel
Bandwidth	200kHz typical

Extended Application Guide

Industrial Automation Solutions

The IL300-F excels in factory automation systems for:

• 4-20mA signal isolation
• PLC input/output protection
• Motor drive feedback circuits

Medical Electronics

Certified isolation performance enables use in:

• Patient monitoring equipment
• Diagnostic instrument front-ends
• Therapeutic device controls

Renewable Energy Systems

Critical applications include:

• Solar inverter feedback loops
• Battery management systems
• Grid-tie converter controls

Design Considerations

PCB Layout Guidelines

For optimal performance:

• Maintain minimum 8mm clearance between input/output sections
• Use guard rings for high-impedance circuits
• Implement proper grounding techniques

Thermal Management

While operating across -55 C to +100 C:

• Limit continuous forward current to 50mA at maximum temperature
• Provide adequate airflow in high-density designs

Comparative Advantage

The IL300-F outperforms competing optoisolators with:

• 50% better linearity than standard optocouplers
• 3 higher isolation voltage than basic models
• Military-grade temperature range

Purchasing Information

Available through authorized distributors with:

• Standard lead times of 6-8 weeks
• MOQ options from 100 pieces
• Full traceability and RoHS compliance

For engineers seeking uncompromising signal isolation, the Vishay IL300-F delivers exceptional performance across demanding applications. Its combination of precision, reliability, and safety certifications makes it the ideal choice for critical designs.