Thick Film Chip Resistors Guide – Active Components × ROYALOHM
What Are Thick Film Chip Resistors?
Thick Film Chip Resistors are one of the most widely used resistor types in modern electronic circuits. As surface-mount devices (SMD), they are designed to be compact, reliable, and cost-effective, making them ideal for high-volume production in consumer electronics, industrial equipment, and automotive systems.
The term “thick film” refers to the manufacturing process: a resistive paste, typically based on ruthenium oxide (RuO₂), is printed onto a ceramic substrate and then fired at high temperatures. This process creates a durable resistive layer that delivers stable performance across a wide range of operating conditions.
Key Features of ROYALOHM Thick Film Chip Resistors
ROYALOHM’s Thick Film Chip Resistors are designed to combine compact size, high reliability, and cost efficiency, making them suitable for a wide range of electronic applications.
Features of Standard Thick Film Chip Resistors:
Small Size & Lightweight: Ideal for modern compact device designs where board space is limited.
Cost-Effective Assembly: Optimised for compatibility with automated placement machines, helping manufacturers reduce production costs.
Flexible Soldering Options: Suitable for both wave soldering and reflow soldering processes, ensuring seamless integration into existing assembly lines.
Wide Application Range: Commonly used in GPS navigators, mobile phones, telecom devices, PDAs, digital CATV receivers, and measurement instruments.
Main Features of High-Value Thick Film Chip Resistors:
High-Value Thick Film Chip Resistors are designed for specialised applications where higher resistance levels are required, while maintaining stability and reliability in compact designs.
High Resistance: Provides extended resistance ranges suitable for precision and specialised circuit needs.
Flexible Soldering Compatibility: Suitable for both reflow and wave soldering, ensuring seamless integration into modern production lines.
Application Versatility: Commonly used in AV adapters, LCD back-light circuits, camera strobes, and other consumer electronic devices.
How to Read Resistor Body Markings
ROYALOHM Thick Film Chip Resistors are designed in very compact sizes, and the marking method varies depending on the package size and tolerance level. Here’s how to interpret them:
No Marking for Ultra-Small Sizes: For very small packages such as 01005, 0201, and 0402, ROYALOHM resistors do not carry any body marking due to the limited space.
Standard ±5% Tolerance Resistors: ROYALOHM resistors with ±5% tolerance typically use a 3-digit marking system.
The first 2 digits represent the significant figures of the resistance.
The 3rd digit indicates the number of zeros that follow.
Example: “103” = 10,000 Ω (10 kΩ).
Precision ±1% Tolerance Resistors (0805, 1206, 1210, 2010, 2512): These usually use a 4-digit marking system.
The first 3 digits represent the significant figures.
The 4th digit shows how many zeros follow.
Example: “1002” = 10,000 Ω (10 kΩ).
E-96 Series Values (±1%): For smaller sizes such as 0603, ROYALOHM applies a 3-digit alphanumeric code system.
This structured marking system ensures that ROYALOHM resistors remain easy to identify and reliable in compact PCB designs, supporting engineers with clarity and consistency in every application.
Active Components × ROYALOHM: A Trusted Partnership in New Zealand & Australia
For over 30 years, Active Components has proudly partnered with ROYALOHM, one of the world’s leading manufacturers of resistors. Together, we bring reliable, high-quality Thick Film Chip Resistors and a wide range of passive components to the New Zealand and Australian markets.
At Active Components, our mission is to provide engineers, manufacturers, and OEMs with components that deliver both performance and long-term reliability. By working closely with ROYALOHM for more than three decades, we ensure consistent quality, competitive pricing, and strong technical support across every project.
Download the latest Catalogue: ROYALOHM Datasheet - Active Components.pdf
Why this partnership matters:
Proven reliability: ROYALOHM’s global reputation for producing dependable resistors is backed by our local market expertise.
Local support: With dedicated teams in New Zealand and Australia, Active Components provides fast delivery, technical guidance, and responsive customer service.
Long-term trust: A 30-year partnership reflects stability, consistency, and a shared commitment to innovation and customer satisfaction.
Whether you are designing consumer electronics, industrial equipment, or automotive solutions, Active Components and ROYALOHM remain your trusted partners for passive components in the region.
Ready to source reliable resistors? Contact the Active Components team today and discover how ROYALOHM solutions can support your next project in New Zealand or Australia.
