Precision Metal Film Melf Resisto MLF

Product catalog summary

Overview: The MLF/MLFM Series Metal Film Melf Resistors by Stackpole Electronics, Inc. are designed for precision and stability using thin film technology. They offer an excellent power-to-size ratio and good pulse power characteristics, and are RoHS compliant and lead-free.

Specifications: The resistors have a maximum working voltage of 400V and are available in various resistance ranges and tolerances. The temperature coefficient of resistance (TCR) varies from ±10 ppm/ºC to ±100 ppm/ºC, depending on the resistance range.

Electrical Specifications: The resistors are available in different power ratings and package sizes, with a maximum overload voltage of 500V. The ohmic range and tolerance are specified for different TCR values.

Mechanical Specifications: The resistors have specific dimensions for body length, diameter, and termination. They are designed to withstand load life, moisture, soldering heat, and short-time overload with minimal resistance change.

Performance Characteristics: The resistors operate within a temperature range of -55ºC to +155ºC and have a minimum insulation resistance of 1GΩ. They exhibit a power derating curve based on ambient temperature.

Pulse Withstanding Capacity: The resistors can handle single and continuous pulses with less than 1% resistance shift from the initial value. The power applied is subject to maximum permissible impulse voltage restrictions.

Frequency Behavior: The resistors function according to ohmic laws up to 100 kHz. At higher frequencies, impedance is affected by additional capacitance and inductance, influenced by component dimensions and environment.

Lightning Surge: The resistors are tested for lightning surge using IEC 60 115-1 standards with 1.2/50μs and 10/700μs pulse shapes, maintaining less than 0.5% resistance shift.

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