The T2B79-390RFI is a thick film resistor manufactured by International Resistive. Thick film resistors are created by depositing a thick film of resistive material onto a ceramic substrate. The '390R' signifies a resistance value of 390 ohms. The other characters likely relate to tolerance, temperature coefficient, and packaging.

Applications:

• Current Limiting: Limits current flow in various electronic circuits.
• Voltage Division: Divides voltage in voltage divider circuits.
• Pull-up/Pull-down Resistors: Provides pull-up or pull-down resistance for digital logic circuits.
• Load Resistors: Acts as a load resistor in various electronic circuits.
• Snubber Circuits: Used in snubber circuits to suppress voltage transients.

Features:

• Stable Resistance: Maintains stable resistance over a wide range of operating conditions.
• Compact Size: Small form factor allows for integration into space-constrained applications.
• High Reliability: Robust design ensures reliable performance.
• Wide Resistance Range: Available in a wide range of resistance values.
• RoHS Compliant: Complies with RoHS directives, ensuring environmental friendliness.

Benefits:

• Accurate Circuit Performance: Stable resistance ensures accurate circuit operation.
• Space Savings: Compact size allows for high-density circuit designs.
• Long-Term Reliability: Robust design guarantees long-term reliability.
• Versatile Applications: Suitable for a wide range of electronic circuits.
• Environmental Compliance: RoHS compliance ensures that the product is environmentally friendly.

Technical Specifications:

To determine specific electrical characteristics, consult the official datasheet from International Resistive. Typical parameters include:

• Resistance Value: 390 ohms (indicated by '390R').
• Tolerance: Specifies the acceptable deviation from the nominal resistance value.
• Power Rating: Specifies the maximum power the resistor can dissipate without damage.
• Temperature Coefficient of Resistance (TCR): Indicates how much the resistance changes per degree Celsius.
• Operating Temperature Range: Specifies the range of temperatures the resistor can operate within.