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SL22 1R020 The SL22 1R020 is a 1 Ohm ±20% inrush current limiter from Ametherm, rated for 20A steady state current up to 65°C.
Mfr Part #:

SL22 1R020

Available from 3 distributors
Mfr Name: Ametherm Inc
Ametherm Inc
The SL22 1R020 is a 1 Ohm ±20% inrush current limiter from Ametherm, rated for 20A steady state current up to 65°C.
Total Stock: 1,328 pcs
$ Price Range: $1.79 - $3.90

SL22 1R020 Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
792 pcs
792 pcs On Request 1 On Request On Request 2034+ On Request On Request
Non-Authorised Inventory information
500 pcs
500 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
36 pcs
36 pcs On Request 1 On Request On Request On Request On Request On Request

SL22 1R020 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Body Diameter
Body Temperature at 100% Max Current
Current
Diameter
Dissipation Constant
Lead Diameter
Lead Spacing
Lead Style
Max Steady State Current
Packaging Type
R @ 25°C
R @ Current
Resistance @ 50% Max Current
Tape & Reel
Thermal Time Constant
Tolerance

SL22 1R020 Description

Short technical summary and product information.

The SL22 1R020 is an inrush current limiter (ICL) from Ametherm, part of the SL22 series. It features a resistance of 1 Ohm with ±20% tolerance and a maximum steady state current rating of 20A (up to 65°C). The component has a dissipation constant of 32.4 mW/°C and a thermal time constant of 40 seconds. Under full rated current, the body temperature reaches 187°C.

 

Mechanically, the SL22 1R020 has a disc body diameter of 20.0 mm (22.00 mm overall diameter) with straight leads. Lead diameter is 1.0 mm and lead spacing is 7.8 mm. The device is designed for bulk packaging with straight lead style, suitable for through-hole mounting.

 

This ICL is commonly used in power supply and motor drive circuits to limit inrush current during startup. The resistance decreases as the device self-heats, allowing normal operating current with minimal power loss.

SL22 1R020 Quick Information

Product Type: Inrush Current Limiter
Series: SL22
Canonical Name: SL22 Series Inrush Current Limiter, 1 Ohm ±20%, 20A, 22mm Disc
Subcategory: NTC Thermistor Based ICL

SL22 1R020 Compliance

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

SL22 1R020 Estimated Pricing

Qty Low High
1+ $3.90 $3.90
5+ $3.24 $3.24
10+ $2.99 $2.99
50+ $2.48 $2.48
100+ $2.28 $2.28
200+ $2.00 $2.00
500+ $1.89 $1.89
1,000+ $1.79 $1.79

Estimated market price range - modelled values for guidance only, not live distributor offers.

SL22 1R020 Features

  • 1 Ohm resistance with ±20% tolerance.
  • Rated for 20A steady state current up to 65°C.
  • Dissipation constant of 32.4 mW/°C.
  • Thermal time constant of 40 seconds.
  • 22mm disc size with straight leads.

SL22 1R020 Applications

  • Limits inrush current in power supplies.
  • Protects motor drive circuits during startup.
  • Used in AC-DC converter input stages.

SL22 1R020 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the resistance of the SL22 1R020?

The resistance at 25°C is 1 Ohm with a tolerance of ±20%.

What is the maximum current rating?

The maximum steady state current is 20 Amps up to 65°C.

What is the diameter of this inrush current limiter?

The body diameter is 20.0 mm and overall diameter is 22.0 mm.

What is the lead spacing?

Lead spacing is 7.8 mm and lead diameter is 1.0 mm.

Is the SL22 1R020 RoHS compliant?

RoHS status is listed as RoHS3 Compliant, but this data is unverified with low confidence.

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