The PFC-W0603LF-03-1742-B-3085 is a precision thin film chip resistor manufactured by TT Electronics. These resistors are known for their high stability, tight tolerance, and low temperature coefficient, making them suitable for applications requiring precise resistance values and minimal drift over temperature and time. The '0603' in the part number indicates the resistor's physical size: 0603, which is a standard EIA (Electronic Industries Alliance) case size. The 'LF' denotes lead-free terminations, signifying compliance with RoHS (Restriction of Hazardous Substances) directives.

Applications:

• Precision analog circuits: These resistors are used where accurate resistance values are critical for circuit performance.
• Medical equipment: High stability and reliability make them suitable for sensitive medical devices.
• Test and measurement equipment: The tight tolerance and low TCR are crucial for accurate measurements.
• Industrial control systems: Used in feedback and control loops where stable resistance values are required.
• Aerospace and defense applications: High reliability and stability make them suitable for demanding environments.

Features:

• Thin film technology: Provides excellent stability and low noise.
• Tight tolerance: Offers precise resistance values.
• Low temperature coefficient: Minimizes resistance drift over temperature.
• Lead-free terminations: Compliant with RoHS requirements.
• Small size (0603): Allows for high-density circuit designs.

Benefits:

• Improved circuit performance: Precise and stable resistance values enhance accuracy and reliability.
• Reduced component count: Tight tolerance reduces the need for trimming or calibration.
• Long-term stability: Thin film construction ensures minimal drift over time.
• Environmental compliance: Lead-free terminations meet RoHS standards.
• Compact design: Small size enables miniaturization of electronic devices.

Technical Specifications:

The PFC-W0603LF-03-1742-B-3085 resistor has a resistance value of 17.4 kΩ (1742 indicates 174 with a multiplier of 10^2). The 'B' signifies a tolerance of ±0.1%. The '03' likely refers to the power rating, typically 0.1W for 0603 size resistors. The TCR (Temperature Coefficient of Resistance) is typically very low for thin film resistors, often in the range of ±25 ppm/°C. The operating temperature range is typically -55°C to +155°C. The termination material is typically nickel barrier with tin plating to ensure solderability and prevent leaching. The resistor is constructed with a ceramic substrate and a thin film resistive layer.