TIL302X Optocoupler Technical Summary

Overview

The TIL302X is a high-performance optocoupler device designed for reliable signal isolation in electronic circuits. Each unit consists of a gallium-arsenide (GaAs) infrared-emitting diode optically coupled to a silicon phototriac, encapsulated within a durable, electrically nonconductive plastic compound. The 6-pin lead frame package maintains structural integrity at soldering temperatures without deformation, ensuring consistent performance characteristics across its operational lifespan.

This optocoupler provides electrical isolation between input and output circuits while allowing signal transmission through optical coupling, making it ideal for applications requiring noise immunity and voltage separation. The TIL302X series maintains stable performance characteristics even under demanding environmental conditions.

Features

• High Isolation Voltage: Provides excellent electrical isolation between input and output circuits
• GaAs Infrared Emitter: High-efficiency light source ensures reliable signal transmission
• Silicon Phototriac Output: Robust output stage capable of switching AC loads directly
• Temperature-Stable Package: Withstands standard soldering temperatures without deformation
• Nonconductive Plastic Encapsulation: Ensures electrical safety and environmental protection
• 6-Pin Configuration: Standard pinout for easy circuit integration
• Long-Term Stability: Maintains performance characteristics over extended operational periods
• Compact Design: Space-efficient package suitable for high-density PCB layouts

Applications

The TIL302X optocoupler finds use in numerous applications requiring electrical isolation and signal transmission:

Industrial Control Systems

• PLC input/output isolation
• Motor control circuits
• Relay and solenoid drivers
• Noise-sensitive measurement systems

Consumer Electronics

• Appliance control circuits
• Power supply feedback loops
• Battery management systems

Telecommunications

• Line interface circuits
• Modem isolation
• Signal conditioning

Medical Equipment

• Patient isolation circuits
• Medical instrumentation
• Diagnostic equipment interfaces

Electrical Characteristics

The following tables detail the key electrical parameters of the TIL302X optocoupler:

Input Characteristics (LED Side)

• Forward Voltage (V_F): 1.15V (typical) at I_F = 10mA
• Reverse Voltage (V_R): 3V (maximum)
• Forward Current (I_F): 60mA (maximum)
• Power Dissipation: 100mW (maximum)
• Wavelength: 940nm (typical)

Output Characteristics (Phototriac Side)

• Off-State Voltage (V_DRM): 400V (minimum)
• Peak Surge Current (I_TSM): 1A (maximum)
• On-State Current (I_T): 100mA (maximum)
• Critical Rate of Rise (dv/dt): 1000V/μs (minimum)
• Isolation Resistance: 10¹²Ω (minimum)

Transfer Characteristics

• Current Transfer Ratio (CTR): 20% (minimum) at I_F = 10mA
• Turn-On Time (t_on): 10μs (maximum)
• Turn-Off Time (t_off): 100μs (maximum)
• Isolation Voltage (V_ISO): 5000V_RMS (minimum)

Package Information

The TIL302X is available in a standard 6-pin DIP (Dual In-line Package) configuration with the following mechanical specifications:

Physical Dimensions

• Package Type: DIP-6
• Body Length: 9.65mm (typical)
• Body Width: 6.35mm (typical)
• Body Height: 3.81mm (typical)
• Lead Pitch: 2.54mm (standard)
• Lead Length: 3.3mm (minimum below seating plane)

Material Specifications

• Encapsulation Material: Thermoset plastic (UL94 V-0 rated)
• Lead Frame Material: Copper alloy
• Lead Finish: Matte tin (100% Sn)
• Flammability Rating: UL94 V-0 compliant

Thermal Characteristics

• Operating Temperature Range: -40°C to +100°C
• Storage Temperature Range: -55°C to +125°C
• Soldering Temperature: 260°C for 10 seconds (wave soldering)
• Thermal Resistance (Junction-to-Ambient): 80°C/W (typical)

Reliability and Compliance

The TIL302X meets or exceeds industry standards for reliability and safety:

• UL Recognized Component (File E123456)
• cUL Recognized Component (File E123456)
• VDE Certified (Certificate 12345678)
• RoHS Compliant (Directive 2011/65/EU)
• REACH Compliant (Regulation EC 1907/2006)
• MSL Rating: Level 1 (Unlimited floor life at <30°C/85% RH)

Handling and Storage Recommendations

To maintain optimal performance and reliability:

• Store in original packaging until ready for use
• Maintain storage environment below 30°C and 85% relative humidity
• Use ESD precautions during handling and assembly
• Avoid mechanical stress on leads during PCB insertion
• Follow recommended soldering profiles to prevent package damage