Executive Summary
HVC Capacitor Manufacturing Co., Ltd. (HVC) announces a high-performance alternative to the KOA Speer RK92 series (including RK92, RK92D, and RK92L). With the RK92/RK92D officially reaching End-of-Life (EOL) and the RK92L designated as Not Recommended for New Designs (NRND), HVC provides a "plug-and-play" solution that ensures supply chain continuity. Leveraging over 20 years of expertise in thick film technology and CNC ceramic precision cutting, HVC delivers 100% mechanical compatibility with superior electrical specifications compared to the original Japanese manufacturer.

The RK92 Series Lifecycle Challenge
The KOA RK92 series comprises high-voltage Single In-Line Package (SIP) thick film resistors designed for precision voltage division and discharge circuits. However, current procurement faces significant risks:
• RK92 & RK92D (EOL): Discontinued with a final order deadline of March 31, 2027.
• RK92L (NRND): Long-term supply is no longer guaranteed for new projects.
• Substitution Barriers: Major Western brands (e.g., Ohmite, EBG, Vishay) typically lack custom SIP form-factor services for through-hole resistors, making direct pin-to-pin replacement difficult and expensive.

HVC Engineering & Technical Superiority
HVC’s high-voltage division, led by seasoned experts in thick film materials, utilizes advanced European technology and 96% alumina ceramic substrates. Our Ruthenium-based (RuO₂) resistor paste is sintered at 850°C, meeting the quality standards required by industry leaders like Spellman and Hitek Power.

Core Substitution Advantages
• 100% Drop-in Compatibility: CNC precision cutting ensures HVC SIP packages match the exact pin spacing, length, and thickness of KOA originals. No PCB layout modifications are required.
• Low MOQ & Customization: HVC offers a Minimum Order Quantity (MOQ) of just 50 pieces—significantly lower than the industry standard of 1,000 pieces.
• Supply Chain Resilience: Standard lead times are 3–4 weeks, compared to 10+ weeks for traditional international brands.

Performance Comparison: HVC vs. KOA Speer
The HVC GFP/GXP series (launched 2025) significantly extends the operational envelope of the legacy RK92 series:

Cross-Reference Quick Guide
Engineers can use the following table for direct model matching:

Application Scope
HVC high-voltage resistors are engineered for critical systems, including:
• Medical Imaging: X-ray systems and Electron Microscopes
• Infrastructure: Smart Grid sensing, metering, and HV power supplies
• Industrial: High-voltage generators, electrostatic controls, and instrumentation

Compliance & Quality Assurance
HVC operates under ISO 9001:2015 and IATF 16949-2016 quality management systems. All replacement products feature UL94V-0 flame-retardant coatings and lead-free terminations compliant with EU RoHS regulations.
For technical support or to request samples, please visit our official website at www.hv-caps.com.

KOA RK92 Series E.O.L Part number