Metal Oxide Power Film Resistors (RSS, RSN)

(RSS, RSN) Power Film Resistor - Introduction

Metal Oxide Power Resistors on the pulse in various forming styles for different applications

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  • Power Film Resistor (RSS, RSN)
  • Power Metal Oxide Film Resistors (RSS, RSN)
  • Metal Oxide Power Film Resistors (RSS, RSN)
  • Metal Oxide Power Resistors (RSS, RSN)
  • Power Metal Oxide Resistors (RSS, RSN)

Now available from Token Electronics is a new range of highly stable and reliable metal oxide resistors providing high power in a small package with various forming styles and different leads for different applications.

New RS series resistors are ideal for pulse applications in adverse conditions and are available in different sizes with power ratings of 0.5W to 10W for a power voltage range from 200V to 850V. Highly temperature resistant the devices feature a resistance range from 10Ω to 47KΩ.

RS series resistors are available in various forming styles and different leads for different applications like power supplies, amplifiers, household appliances and ballasts.

Manufactured by depositing a homogeneous oxide film of metal alloy onto a high-grade ceramic body, the metal oxide resistors are coated with a nonflammable lacquer providing mechanical, electrical and climatic protection.

The devices come packaged in ammo pack boxed or tape and reel format. All RS Series devices are RoHS-compliant, and compatible with high temperature soldering processes normally employed for lead free solders.

Contact us with your specific needs. Download complete specification - Power Metal Oxide Resistors (RSS, RSN).

Applications :
  • Ballasts, Amplifiers, Telecommunications, Household appliances.
  • Automotive, Power supplies, Computer, Instrumentation.
Features :
  • Lead (Pb)-free and RoHS compliant
  • Operating temperature range: -55°C~200°C
  • Axial leaded type, high power at compact sizes.
  • Replace carbon composition components in some applications
  • Tolerances: G (±2%), J (±5%), Power wattages up to 10W at + 25 °C.

(RSS, RSN) Specifications & Dimensions (Unit: mm)

Metal Oxide Film (RSS, RSN) Dimensions
Dimensions (Unit: mm)
(RSS, RSN) Metal Oxide Power Film Resistors
Type Dimensions (Unit: mm) Resistance Range Tolerance E24 MAX Working Voltage Dielectric Withstanding Voltage
RSS RSN L D H d ± 0.05 (Ω) (%) RSS RSN RSS RSN
1/2W 1/4W 6.0 ± 0.3 2.3 ± 0.3 26 ± 1 0.40~0.50 10Ω ~ 22KΩ ±2%, ±5% 200V 300V 400V 500V
1W 1/2W 9.0 ± 0.5 3.0 ± 0.5 26 ± 1 0.50~0.55 10Ω ~ 33KΩ ±2%, ±5% 250V 350V 500V 600V
2W 1W 11 ± 1.0 4.0 ± 0.5 26 ± 3 0.75~0.80 10Ω ~ 47KΩ ±2%, ±5% 300V 350V 600V 700V
3W 2W 15 ± 1.0 5.0 ± 0.5 35 ± 3 0.75~0.80 10Ω ~ 47KΩ ±2%, ±5% 350V 350V 700V 700V
5W 3W 17± 1.0 6.0 ± 0.5 35 ± 3 0.75~0.80 10Ω ~ 47KΩ ±2%, ±5% 350V 500V 700V 1000V
- 5W 24 ± 1.0 8.0 ± 0.5 38 ± 3 0.75~0.80 10Ω ~ 47KΩ ±2%, ±5% 500V 700V 800V 1000V
7W 6W 24 ± 1.0 8.0 ± 0.5 38 ± 3 0.75~0.80 10Ω ~ 47KΩ ±2%, ±5% 500V 700V 800V 1000V
10W 7W 41 ± 1.0 8.0 ± 0.5 38 ± 3 0.75~0.80 10Ω ~ 47KΩ ±2%, ±5% 750V 850V 850V 1000V
  10W 53 ± 1.0 8.0 ± 0.5 38 ± 3 0.75~0.80 10Ω ~ 47KΩ ±2%, ±5% 750V 850V 850V 1000V
  • Resistance value 47KΩ ~ 100KΩ is available on request.

(RSS, RSN) Electrical Performance

Requirements Characteristics Test Method
JIS C 5202 MIL-R-22684B
Operating Temp.Range -55°C~200°C    
Temp.Coefficient (ppm C) ± 300 5.2 4.6.11
Short Time Overload ± (1%+0.05Ω) 5.2A 4.6.5
Effect of Soldering ± (1%+0.05Ω) 6.4 350°C 2Sec 4.6.9
Temp.Cycling ± (1%+0.05Ω) 7.4-55°C / 85°C 4.6.3
Moisture Resistance ± 5% 7.9 1,000hr 4.6.10
Load Life ± 5% 7.10 1,000hr 4.6.12
Dielectric Withstanding Voltage ± (0.5%+0.05Ω) 5.7A 4.6.7
Non-Combustibility The resistor shall withstand Overload test in accordance with Artice UL492.2 13 without producing a fire hazard.
Resistance to Solvents No damage on the appearance,co.or bands.

Non-flammable Resistor Application Notes (RSS, RSN)

  1. Never use organic solvents to clean non-flammable resistors.

  2. Maintaining a surface temperature of 200°C or less will extend resistors service life.

  3. Although the hardness exceeds that of a 3H pencil lead, do not nick the coating with screwdrivers or other pointed objects.

  4. Smoke emitted from non-flammable resistors on initial use in powered circuits is a normal phenomenon and the component can be safely utilized.

  5. Non-flammable resistors cannot be utilized in oil. Non-flammable resistors cannot be used in high frequency machinery because of the inductance produced by the grooving.

  6. Avoid touching non-flammable resistors in operation; the surface temperature ranges from approximately 350 °C to 400°C when utilized at the full rated value.

  7. All metal oxide film resistors (RSS, RSN) manufactured by Token Electronics Co., Ltd. comply with the U.S. UL-94 non-flammability test, Class V-0, a continuous combustion period of zero seconds.

  8. Less resistant against external shocks than ordinary resistors due to special flame retardant coating. So, never give shocks or vibrations on the resistors. Also never damage them by picking up the coated films with pliers, tweezers, etc.

  9. After cleaning, no external power should be put on the coated films before they are well dried.

Order Codes (RSS, RSN)

Part Number
Rated Power (W)
Resistance Value (Ω)
10R 10Ω
100R 100Ω
1K 1KΩ
10K 10KΩ
Resistance Tolerance (%)
G ±2%
J ±5%
TB Taping Box
P Bluk