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77081820

77081820 Description

The 77081820 from CTS Resistor Products (a division of CTS Corporation) is a 7-resistor bussed network designed for through-hole mounting. This obsolete but REACH-unaffected component features a compact 8-pin SIP package with dimensions of 0.800" x 0.098" (20.32mm x 2.50mm) and a seated height of 0.195" (4.95mm). Each resistor in the network offers a 82Ω resistance with a tight ±2% tolerance and a ±100ppm/°C temperature coefficient, ensuring stable performance across varying environmental conditions. With a 100mW power rating per element, this ROHS3-compliant array is ideal for space-constrained applications requiring reliable resistance matching.

77081820 Features

• Bussed Circuit Design: Simplifies PCB layout by sharing a common node, reducing wiring complexity.
• High Power Handling: 100mW per resistor supports moderate current loads.
• Precision Tolerance: ±2% tolerance ensures consistent performance in precision circuits.
• Low Thermal Drift: ±100ppm/°C coefficient minimizes resistance variation with temperature fluctuations.
• Robust Construction: Through-hole mounting provides mechanical stability for harsh environments.
• Compliance: ROHS3, REACH, and EAR99 certifications ensure global usability.

77081820 Applications

• Industrial Control Systems: Used in PLCs and sensor interfaces for signal conditioning.
• Consumer Electronics: Ideal for legacy audio equipment, power supplies, and display drivers.
• Automotive Electronics: Suitable for dashboard clusters and lighting controls (non-safety-critical).
• Test & Measurement Equipment: Provides stable reference resistances in calibration circuits.
• Telecom Hardware: Used in filtering and termination networks for legacy communication devices.

Conclusion of 77081820

The 77081820 resistor network balances compactness, precision, and durability, making it a versatile choice for legacy or low-volume designs. While obsolete, its bussed architecture, tight tolerance, and robust through-hole construction offer advantages over discrete resistors in space-sensitive applications. Engineers seeking matched resistances with minimal drift in industrial, automotive, or telecom systems will find this array a reliable solution. For new designs, consider modern alternatives, but for repairs or niche uses, the 77081820 remains a technically sound option.