Thick-film anti-surge resistor handles large pulse loading. Introduction
Anti-surge Pulse Load Resistor (RCR)Thumbnail Gallery
A new range of anti-surge axial leaded power resistors, metal glaze resistive element on ceramic substrates, from Token Electronics.
A carbon film resistor replacement, the new RCR series thick-film style resistors offer numerous benefits over the previous style devices, namely reduced costs, excellent thermal compliance, optimised a variety of surge capabilities and better solder joint reliability against temperature cycles.
Token succeeded in commercialising the compact thick-film type leaded resistors with high power and high antisurge characteristics, meeting latest design engineer requirements and making the parts suitable for industrial, measurement and telecommunication applications as well as for automotive circuits, like Electrical Control Units (ECU) and Air-Bag Systems.
The antisurge characteristics of Token's latest metal glaze power film style resistors are superior to standard metal film resistors. The power film types of RCR resistors are available: 0.25W to 10W power rating, max working voltage up to 3000V and max overload voltage 5000V. The resistance range is 1Ω ~ 100MΩ at operating temperature range -20°C~+155°C.
All RCR series devices are RoHS-compliant, and compatible with high temperature soldering processes normally employed for lead free solders. Resistors are also available in various forming styles and different leads for different applications. Contact us with your specific needs.
- High power at small sizes
- Max working voltage up to 3000V
- Lead (Pb)-free and RoHS compliant
- Operating temperature range: -20°C~+155°C
- Metal glaze power film, axial leaded type
- Max overload voltage 5000V, Tolerances: J (±5%)
- Industrial power supplies
- Household appliances
- Automotive circuits, Computer, Instrumentation
Specifications & Dimensions (Unit: mm) (RCR)
|Type||Power Rating||L||D||d ± 0.05||H|
|RCR25||1/4W||6.5±1||2.3±0.5||0.5 ~ 0.6||26±3|
|RCR100||1W||12.0±1||4.0±0.5||0.7 ~ 0.8|
* Remark: RCR1000 is custom design and on request.
Power Rating (RCR)
|Type||Power Rating||Max Working Voltage||Max Overload Voltage||Dielectric With-standing Voltage||TCP.(ppm/°C)||Resistance Range
|RCR25||1/4W||500V||700V||500V||±350||1 ~ 33M||-20°C
|RCR50||1/2W||1000V||1500V||600V||±350||1 ~ 68M|
|RCR100||1W||1500V||2500V||800V||±350||1 ~ 100M|
|RCR200||2W||2000V||3000V||800V||±350||1 ~ 100M|
|RCR300||3W||2500V||4000V||1000V||±350||1 ~ 100M|
|RCR500||5W||3000V||5000V||1000V||±350||1 ~ 100M|
Loading Conditions (RCR)
|Power||Resistance Range (Ω)||Surge Voltage||Anti-Surge Characteristics||Surge Test Condition|
|0.25 W||50K < R||3KV||(2.5 Sec. ON + 2.5 Sec. Off) × 10 Cycles
ΔR ≤ ±(50%R+0.1Ω)
|In accordance with IEC
65 Safety specification.
|0.5 W||10K ≤ R < 100K||3KV|
|100K ≤ R < 360K||5KV|
|360K ≤ R < 1M||7KV|
|1M ≤ R||10KV|
Order Codes (RCR)
Specification Download (RCR)
Download complete anti-surge (RCR) specification PDF (333KB) - Pulse Load Resistors.
Electronic products have to be surge immune to ensure their continued reliable operation if subjected to realistic levels of surge voltages, and they are required to comply with safety requirements. Surges in electronic circuits are caused by internal conditions:
- Switching operations from other electronic components or due to external conditions on the AC power mains.
- Switching operations in the power grid or from nearby lightning strikes, either directly to the power distribution system or to nearby ground.