What kind of resistor is CRH2512F91R0E04Z 2512 91R 2W

CRH2512F91R0E04Z is a high-power thick-film chip resistor manufactured by EVEROHMS (Tian'er Technology), part of its CRH series designed for compact, high-reliability circuits. With a 2512 package (6.35mm×3.2mm), it offers a nominal resistance of 91Ω, rated power of 2W, tolerance of ±1% (F), temperature coefficient of ±100ppm/°C, and operating temperature range from -55°C to +155°C. It complies with AEC-Q200 automotive grade and RoHS 2.0 environmental standards.

In standard 2512 packages, typical thick-film resistors are rated at 1W. This model achieves double the power density through enhanced alumina ceramic substrate and ruthenium-based thick-film printing, coupled with extended side electrodes for improved heat dissipation. At 91Ω, it safely handles up to 148mA continuous current, with short-term surge tolerance up to 5W. Ideal for switch-mode power supply feedback loops, DC-DC converter current sensing, motor drive current limiting, and onboard charger (OBC) signal conditioning circuits.

Its low temperature drift ensures stable performance across extreme environments, while sulfur-resistant plating protects against industrial corrosion. Common applications include EV battery management systems (BMS), industrial PLCs, telecom power modules, and LED drivers—especially where space is constrained but power demands are high.

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