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RF1238-000 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

RF1238-000 product

RF1238-000

Circuit Protection

PTCResettable FuseSurface Mount

The RF1238-000 (SMD185F) is a surface-mount PolySwitch PTC resettable fuse from Littelfuse, rated for 33VDC and 1.85A hold current.

Best for

  • Overcurrent protection
  • Surface mount circuits

Avoid if

  • Applications exceeding 33VDC or 40A interrupt current

Check before use

  • Thermal derating curves for specific operating temperatures

Key specifications

Hold Current
1.85 A
Operating Voltage
33 VDC
Resistance Range
0.065 - 0.165 Ohm

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

General

Datasheet

MIOCD001-DS14-1.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for RF1238-000: 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
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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

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

Design and risk insights

Questions & answers

It is a PolySwitch PTC resettable fuse designed for overcurrent protection in surface-mount applications.