Surge Withstanding Resistor (SWR Series)-Tech Company

Thick Film Resistor (CR..A Series)

Surge Withstanding Resistor (SWR Series)

0603 / 0805 / 1206 / 1210 / 2010 / 2512

Surge Withstanding Chip Resistor - SWR Series

Derating Curve
Derating Curve

Excellent Surge withstanding chip resistor , high power is available.

Features

  • High power rating.
  • Excellent surge withstanding & pulse withstanding performance.
  • Improved working voltage ratings.
  • Standard package sizes of 0603~2512.
  • AEC-Q200 Compliance.

Applications

  • Metering (Testing/Measurement)
  • Medical Devices
  • Automotive
  • Power supply
  • Charger
  • Inverter
  • LCD Video Monitors

Construction

Surge Withstanding Chip Resistor - SWR Series Construction

Part Numbering


Standard Electrical Specifications

Item
Type
Power Rating
at 70°C
Operating Temp.
Range
Max.
Operating Voltage
Max.
Overload Voltage
Resistance Range TCR 
(PPM/°C)
±5% ±10% ±20%
SWR03 (0603) 1/8W -55 ~ +155°C 50V 100V 10Ω - 270Ω ±200
300Ω - 1MΩ ±100
SWR05 (0805) 1/4W -55 ~ +155°C 150V 300V 1Ω - 270Ω ±200
300Ω - 20MΩ ±100
SWR06 (1206) 1/3W -55 ~ +155°C 200V 400V 1Ω - 20Ω ±200
22Ω - 20MΩ ±100
SWR13 (1210) 1/2W -55 ~ +155°C 200V 400V 1Ω - 20Ω ±200
22Ω - 20MΩ ±100
SWR10 (2010) 3/4W -55 ~ +155°C 400V 800V 1Ω - 20Ω ±200
22Ω - 20MΩ ±100
SWR12 (2512) 1.5W -55 ~ +155°C 500V 1000V 1Ω - 20Ω ±200
22Ω - 20MΩ ±100

Operating Voltage=√(P*R) or Max. Operating Voltage listed above, whichever is lower.
Overload Voltage=2.5*√(P*R) or Max. Overload Voltage listed above, whichever is lower. 
☑ Helisto is capable of manufacturing the optional spec based on customer's requirement.

Pulse Withstanding Capacity

The single impulse graph is the result of 50 impulses of rectangular shape applied at one-minute intervals. The limit of acceptance was a shift in resistance of less than 1% from the initial value. The power applied was subject to the restrictions of the maximum permissible impulse voltage graph shown.

Continuous Pulse

The continuous load graph was obtained by applying repetitive rectangular pulses where the pulse period was adjusted so that the average power dissipated in the resistor was equal to its rated power at 70°C. Again the limit of acceptance was a shift in resistance of less than 1% from the initial value.

Lightning Surge

Resistors are tested in accordance with IEC 60115-1 using both 1.2/50us and 10/700 pulse shapes. The limit of acceptance is a shift in resistance of less than 1% from the initial value.

Files Download

RoHS Report


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