Panasonic ERJPC Series

High Precision (±0.1%, ±25 ppm/K) Thick Film Resistors Enabling Robust Replacement of Thin Film Alternatives.

The Panasonic ERJPC Series are ultra-high precision thick film chip resistors developed with proprietary material and process design to achieve thin film level performance, including tight tolerance (±0.1%) and low TCR (±25 ppm/K).

They offer high reliability and stability in harsh conditions, making them an ideal solution for engineers looking to reduce costs and enhance durability by partially replacing thin film components in critical circuits.

The ERJPC series represents a significant step forward in thick film technology. Developed with the concept of achieving thin film level precision in a thick film structure, these resistors surpass Panasonic's conventional high-precision thick film ERJPB series in both tolerance and reliability. This allows for the partial replacement of thin film resistors in applications where thin film’s high cost or susceptibility to ESD/corrosion is a concern,. The ERJPC series provides superior operational stability even under severe testing conditions, such as high temperatures and temperature cycling (-55℃～+155℃)

Features

• Ultra-High Precision: Resistance tolerance of ±0.1%, and low TCR of ±25 ppm/K 
• Industry-Leading Reliability: Achieves the industry's highest level of resistance stability for thick film resistors (resistance change ratio ±0.2% or less in reliability tests).
• Space Saving: Enables down-sizing by 1 to 2 sizes due to higher rated power compared to conventional thin film products.
• Superior Durability: Features unique soft electrodes to suppress solder crack progression, contributing to set long-life and enhanced reliability.
• AEC-Q200 Qualified: Suitable for automotive applications

Applications

       The ERJPC series is primarily targeted at high-precision circuits across demanding markets:

• Target Circuits: Sensing circuits, Voltage dividing circuits for power supply monitoring, and Operational Amplifier (Op Amp) amplifying circuits.
• Automotive Uses: ADAS
• Industrial Uses: Precision processing machines, Industrial robots, Measurement machines, and Power supply units.
• ICT: Applications like data servers and AI generation servers where high precision is required

Key Components 

• Available Sizes (inch): 0402, 0603, 0805, 1206.
• Rated Power: Up to 0.4W (1206 size).
• Tolerance Options: Standard ±0.1% and ±0.5%.
• TCR: ±25 ppm/K (Hot TCR),.
• Materials: Designed using raw materials that do not contain lead, in line with environmental considerations.

Benefits

• Enhanced Reliability: The thick film structure provides superior robustness against factors like ESD and corrosion, which can compromise thin film resistors.
• Design Flexibility: Higher rated power allows for significant size reduction. For instance, replacing an 0805 thin film resistor with an 0603 thick film ERJPC results in a 55% chip size reduction.
• Long-Term Stability: Contributes to the long operational life of the final equipment through improved solder crack resistance and long-term stability.

Block Diagram