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77083221

77083221 Description

The 77083221 from CTS Resistor Products (a division of CTS Corporation) is a 4-resistor network designed for precision through-hole applications. This obsolete but still relevant component features 220Ω resistance per element with a tight ±2% tolerance, ensuring reliable performance in demanding circuits. Its isolated circuit type allows independent resistor operation, while the ±100ppm/°C temperature coefficient ensures stability across varying environmental conditions. Encased in an 8-pin SIP (Single In-Line Package), the device measures 0.800" x 0.098" (20.32mm x 2.50mm) with a seated height of 0.195" (4.95mm), making it suitable for space-constrained layouts.

77083221 Features

• High Precision: ±2% tolerance and ±100ppm/°C thermal stability for consistent performance.
• Robust Construction: Through-hole mounting ensures mechanical durability.
• Isolated Resistors: Independent 220Ω resistors (4 total) enable flexible circuit design.
• Compliance: ROHS3 Compliant and REACH Unaffected, meeting environmental standards.
• Power Handling: 100mW per element balances compact size with adequate dissipation.
• Non-MSIL: Not Applicable moisture sensitivity simplifies storage and handling.

77083221 Applications

Ideal for legacy or maintenance-critical systems, the 77083221 excels in:

• Analog Signal Conditioning: Precision voltage dividers or sensor interfaces in industrial controls.
• Pull-Up/Pull-Down Networks: Reliable logic level stabilization in embedded systems.
• Test Equipment: Calibration circuits requiring stable, matched resistances.
• Retrofit Designs: Drop-in replacement for obsolete arrays in military/aerospace hardware.

Conclusion of 77083221

While marked obsolete, the 77083221 remains a dependable choice for engineers needing high-density, isolated resistors with proven stability. Its through-hole design, tight tolerances, and environmental compliance make it suitable for legacy upgrades or applications demanding repeatable performance. For projects prioritizing precision and durability over miniaturization, this resistor network offers a cost-effective solution.

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