High-resistance chip resistors perform critical functions including high-resistance voltage division, high-impedance input, leakage protection and signal isolation in circuits for high-voltage testing, leakage current control, signal voltage division, precision instruments, medical equipment and more.
Standard resistors suffer common drawbacks in high-resistance ranges: poor stability, insufficient voltage resistance, large temperature drift and weak moisture resistance. FOSAN FRG high-resistance thick film chip resistors are engineered exclusively for high-resistance, high-voltage and high-reliability applications. Featuring ultra-high resistance values, outstanding voltage withstand capability, stable performance across wide temperature ranges and superior moisture resistance, they deliver steady support for high-precision and high-impedance systems.
I. Core Value of High-Resistance Resistors
High-resistance resistors are widely applied for high-voltage voltage division, leakage current limiting, high-impedance input and signal sampling. As equipment evolves toward miniaturization, higher voltage ratings and higher precision, stricter standards are imposed on resistors for maximum resistance value, voltage resistance, temperature stability, moisture resistance and long-term reliability.
The core value of FOSAN FRG high-resistance thick film chip resistors:
Adopting high-impedance thick film formulations, multi-layer protective structures and high-voltage optimized design, the FRG series effectively mitigates failure risks such as leakage, high-voltage breakdown and moisture-induced malfunctions, greatly boosting operational stability under complex working conditions.
II. Core Advantages of FOSAN FRG
Ultra-wide high-resistance range to meet premium precision demandsThe FRG series supports far higher resistance values than standard resistors, perfectly matching high-impedance scenarios including medical instruments, precision meters, high-voltage testing and leakage current control.In high-precision sampling, weak signal detection and medical monitoring devices, its high resistance paired with exceptional stability greatly improves system sensitivity and measurement accuracy.
In high-precision sampling, weak signal detection and medical monitoring devices, its high resistance paired with exceptional stability greatly improves system sensitivity and measurement accuracy.
2.Superior voltage withstand for enhanced high-voltage safety margin
Tailored for high-voltage circuits, FRG features optimized structures and materials to raise maximum operating voltage and dielectric withstand voltage. It delivers safer performance in high-voltage voltage division, power supply sampling, relay control and automotive high-voltage detection, effectively preventing hazards like high-voltage breakdown, electric leakage and flashover.
3.Wide-temperature stability with low drift and high precision
Even at high resistance levels, FRG maintains an excellent temperature coefficient. Minimal resistance drift is guaranteed across a broad temperature spectrum of -55°C to +155°C, securing stable signal performance for outdoor, automotive and industrial environments.
4Excellent moisture resistance and high insulation for harsh environments
Designed with dual protective layers and reinforced edge insulation, FRG boasts enhanced resistance to heat-humidity aging, sulfidation and insulation performance. It operates reliably in humid, heavily polluted and harsh industrial settings, lowering risks of leakage and component failure.
5.Full-size lineup and high reliability for premium equipment requirements
The FRG series covers mainstream package sizes, complies with RoHS and halogen-free standards, and passes rigorous reliability tests including temperature cycling, high-temperature load, humidity endurance and dielectric voltage withstand. It satisfies long-term operating requirements for medical, automotive, industrial control and precision electronics equipment.
III. Typical Application Scenarios
High-voltage testing equipment, leakage current control modules, signal divider circuits, precision measuring instruments, medical diagnostic & monitoring devices, automotive high-voltage systems, industrial automation control equipment, weak signal acquisition systems
IV. FOSAN Delivers More Stable & Dependable Solutions
Backed by in-house material development, precision manufacturing and full-process quality control, FOSAN produces high-consistency, highly reliable high-resistance resistors. With four standout strengths — ultra-high resistance, high voltage resistance, low temperature drift and robust moisture resistance — the FRG series has become a trusted choice for clients in medical, automotive, industrial control and instrumentation sectors.
Moving forward, FOSAN will continue to deepen its expertise in high-resistance, high-voltage and high-precision technologies, supplying more stable, safer and higher-precision electronic components for premium equipment worldwide.
