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M8340109M4991FCD03

M8340109M4991FCD03 Description

The M8340109M4991FCD03 from Vishay is a high-reliability thick film resistor network designed for demanding applications in military and industrial electronics. Part of the Military M83401/03 series, this 9-resistor bussed (BUS) network offers a 4.99KΩ resistance per element with a tight 1% tolerance and a ±300ppm/°C temperature coefficient. Housed in a molded SIP (Single In-line Package), it features 10 pins with a 2.54mm terminal pitch and through-hole mounting for robust mechanical stability. The device operates over a wide temperature range (-70°C to +125°C) and delivers a total power rating of 1.08W (0.12W per resistor), making it suitable for high-density circuits requiring precision and durability.

M8340109M4991FCD03 Features

• Military-Grade Reliability: Compliant with M83401/03 series standards, ensuring performance in harsh environments.
• Precision Thick Film Technology: Delivers low noise and stable resistance over temperature variations.
• High Power Handling: 1.08W total power dissipation (0.12W per resistor) with 50V maximum voltage rating.
• Robust Construction: Molded SIP package with pin termination for vibration resistance and long-term solderability.
• Space-Efficient Design: Compact 24.97mm length × 2.49mm depth × 4.75mm height footprint ideal for PCB space constraints.
• Bussed Circuit Configuration: Simplifies design by connecting multiple resistors to a common node, reducing component count.

M8340109M4991FCD03 Applications

• Military & Aerospace: Avionics, radar systems, and communication equipment requiring MIL-spec reliability.
• Industrial Controls: PLCs, motor drives, and power supplies needing high-temperature operation.
• Test & Measurement: Precision instrumentation where low TCR (±300ppm/°C) and 1% tolerance are critical.
• Automotive (Non-Automotive Rated): Legacy systems or non-safety-critical circuits demanding robust performance.
• Telecom Infrastructure: Base stations and networking hardware benefiting from bussed network efficiency.

Conclusion of M8340109M4991FCD03

The M8340109M4991FCD03 stands out for its military-grade ruggedness, precision thick film technology, and bussed network efficiency. Its wide operating temperature range, high power rating, and compact SIP package make it a superior choice for applications demanding reliability under extreme conditions. While not RoHS-compliant, it remains a go-to solution for legacy or exempted military/industrial designs. Engineers prioritizing long-term availability (Active status) and Vishay’s quality assurance will find this resistor network ideal for mission-critical systems.