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SG230 Inrush Current Limiter (ICL) with 20 Ohm resistance, 1.75A maximum steady-state current, and 230V voltage rating.
Mfr Part #:

SG230

Available from 1 distributors
Mfr Name: Ametherm Inc
Ametherm Inc
Inrush Current Limiter (ICL) with 20 Ohm resistance, 1.75A maximum steady-state current, and 230V voltage rating.
Total Stock: 23 pcs

SG230 Available from 1 distributor

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SG230 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Current
Diameter
Fail Short
Impulse Discharge Current (8
Lead Spacing
Mounting Type
Number of Poles
R @ 25°C
R @ Current
Tape & Reel
Tolerance
Voltage

SG230 Description

Short technical summary and product information.

The Ametherm SG230 is an Inrush Current Limiter (ICL) designed to suppress high inrush current surges in power supply circuits. It features a nominal resistance of 20 Ohms at 25°C with a tolerance of ±15%, and a maximum steady-state current rating of 1.75 Amps. The device is rated for a maximum voltage of 230 Volts and can handle impulse discharge currents up to 1000 Amps (8/20 µs waveform).

 

This surface-mount component is housed in a 1812 (4532 Metric) package with a diameter of 12.70 mm and a lead spacing of 7.87 mm. It is a 2-pole device that does not fail short. The SG230 is suitable for use in applications requiring inrush current limiting, such as power supply input stages and AC-DC converters.

 

The component carries CSA and UR safety approvals. Compliance data for RoHS, REACH, and MSL is unverified and should be confirmed with the manufacturer.

SG230 Quick Information

Product Type: Inrush Current Limiter (ICL)
Canonical Name: Ametherm SG230 Inrush Current Limiter
Subcategory: NTC Thermistor

SG230 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SG230 Features

  • 20 Ohm resistance at 25°C.
  • 1.75A maximum steady-state current.
  • 230V maximum voltage rating.
  • 1000A impulse discharge capability.
  • Surface mount 1812 package.

SG230 Applications

  • Suppresses inrush current in power supplies.
  • Protects diode bridge rectifiers at turn-on.
  • Reduces fuse failures in AC-DC converters.
  • Suitable for high current surge applications.

SG230 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the resistance of the SG230 at 25°C?

The nominal resistance at 25°C is 20 Ohms with a tolerance of ±15%.

What is the maximum current rating of the SG230?

The maximum steady-state current is 1.75 Amps.

What is the voltage rating of the SG230?

The maximum voltage rating is 230 Volts.

What is the package type of the SG230?

The SG230 is a surface mount device in a 1812 (4532 Metric) package.

What is the diameter of the SG230?

The nominal diameter is 12.70 mm (0.500 inches).

What safety approvals does the SG230 have?

The SG230 is approved by CSA and UR.

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