Overview of ZCM Series SMD Precision Metal Film Resistors
The ZCM Series Datasheet targets the electronics industry, providing comprehensive information on its SMD Precision Metal Film Resistors in MELF style. These resistors are designed to meet demanding applications such as in the Automotive, Charger Power Supply, Alternative Energy, Home Appliances, and Industrial sectors. ZCM Series resistors are well-suited for scenarios where high precision and stability against environmental changes are required.
Key Features
These resistors are characterized by advanced MELF technology, ensuring excellent performance stability under different environmental conditions. They are acknowledged for best-in-class pulse load capability and intrinsic sulfur resistance. Importantly, they come with certifications like AEC-Q200 Qualification and are RoHS & REACH Compliant. The series provides a wide resistance range, with options including E24, E96, and E192 series. Tolerances are listed from ±0.1% up to ±5%, and temperature coefficients range from ±5 ppm/°C to ±100 ppm/°C.
Electrical Specifications
The datasheet lists detailed electrical specifications such as power ratings ranging from 0.4W to 1.0W, resistance values from 0.22Ω to 10MΩ, and operating temperatures of -55°C to +155°C. The maximum working voltage for the 0.4W and 1.0W parts are 200V and 350V RMS, respectively, while the dielectric withstanding voltages are 300V and 500V RMS.
Mechanical Data and Packaging
Information on the dimensions and masses of resistors helps in the design of PCBs. For instance, the ZCM204 component has a mass of 22 milligrams, while the ZCM207 is slightly heavier at 77 milligrams. The recommend solder pads are detailed for both wave and reflow soldering, ensuring optimal connectivity.
Performance and Durability
The performance data highlights the ZCM series’ capabilities to endure short-time overloads, single and periodic electric overloads, and single pulse high voltage overloads. They exhibit a low failure rate (10^-9/h) and can endure high temperatures and damp conditions. The endurance is also evident from its resistance to soldering heat, and it passes stress tests like vibration, temperature cycling, and electrostatic discharges.
Marking and Notes
For ease of identification, the resistors come with a color code marking system that adheres to IEC 60062. This allows for quick recognition of resistance values and tolerances. The system follows a standard that ensures visibility of markings despite potential voids in the bands.
Contact information, including telephone numbers and email support, are provided for Vitrohm, the company behind the ZCM series, showcasing their commitment to customer service and technical support.
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