## Summary of the Document: CHR Series Chip Resistors - Powertron GmbH

This document is a datasheet for the CHR series of chip resistors manufactured by Powertron GmbH. It details the specifications, features, and ordering information for these resistors.

Key Features & Specifications:

️· Resistance Range: Wide range, categorized by tolerance. Ranges from 10% to 20%, 5% to 10%, 1% to 10%, and 0.5% to 10% depending on the resistance value. Resistance values go up to 10M Ohms.
️· Tolerance: Available in 5%, 1%, 0.5%, 10% and 20% tolerance.
️· Temperature Coefficient: TCR options of 50 ppm/°C and 100 ppm/°C.
️· Power Rating: 1W @ 70°C, 0W @ 155°C (derating applies at higher temperatures)
️· Operating Temperature Range: -55°C to +155°C (extended range to 250°C available)
️· Packaging: Available in bulk or blister tape (IEC 60286-3). Minimum quantities apply.
️· Sizes: Available in CHR 0402, 0504, 0603, 0805, and 1206 sizes (dimensions detailed in the document).

Key Testing/Performance Characteristics:

️· Long-Term Stability: Tested for stability under various conditions (125°C/1000h, 155°C/1000h)
️· Load Life: Tested under 70°C and 70% of rated power for 1000 hours.
️· Humidity: Tested under 96% RH, 40°C for 56 days.
️· Solderability: Meets requirements for 250°C / 3s soldering.

Ordering Information:

The document provides an example of how to order resistors, including specifying the part number, resistance value, tolerance, TCR, and packaging type.

Overall:

This datasheet is a comprehensive guide for engineers and purchasers seeking information on Powertron's CHR series chip resistors. It provides the necessary specifications and details to ensure proper selection and application of these components. The power derating curve helps determine appropriate operating conditions.