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K31 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

K31 product

K31

Thermal Cutoffs (Thermal Fuses)

Thermal FuseATCOSafety Component

The K31 is a reliable, non-resettable alloy-type thermal fuse rated for 221°C and 2A, widely used for over-temperature protection in consumer and industrial electronics.

Best for

  • Over-temperature protection in power supplies
  • Motor thermal protection
  • Appliance safety

Avoid if

  • Applications requiring resettable protection
  • Environments exceeding 250°C

Check before use

  • Soldering temperature and duration limits

Key specifications

Tf
221 °C
Rated Current
2 A
Rated Voltage
250 VAC

Compliance & Environment

RoHS
Compliant
REACH
Compliant
MSL
-
ECCN
-
HTSUS
-

Application

Power SuppliesMotorsAppliances

Datasheet

1bc4f8bfd9c682d42812a30cf5159a43_datasheet.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for K31: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Login required · CAD models billed separately as an add-on

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The K31 is an alloy-type thermal-link (ATCO) designed to permanently open a circuit when the temperature exceeds its rated 221°C.