We use Cookies to give you best experience on our website. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies. Please see our Privacy Policy for more information.

Findchips Blog
Resistors / Non-linear Resistors / RUEF400K
Datasheets
RUEF400K by:

PTC Resettable Fuse, 0.05ohm, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT

Part Details for RUEF400K by Littelfuse Inc

Results Overview of RUEF400K by Littelfuse Inc

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Consumer Electronics

RUEF400K Information

RUEF400K by Littelfuse Inc is a Non-linear Resistor.
Non-linear Resistors are under the broader part category of Resistors.

Resistors are passive components that work by limiting electron flow in a circuit. They are available as fixed or as variable (potentionmeters). Read more about Resistors on our Resistors part category page.

Price & Stock for RUEF400K

Part # Distributor Description Stock Price Buy
DISTI # RUEF400KHF-ND
DigiKey PTC RESET FUSE 30V 4A RADIAL Min Qty: 1 Lead time: 15 Weeks Container: Bag 1518
In Stock
  • 1 $0.6700
  • 5 $0.5560
  • 10 $0.5130
  • 50 $0.4256
  • 100 $0.3928
  • 250 $0.3531
  • 500 $0.3257
  • 1,000 $0.3003
  • 5,000 $0.2500
$0.2500 / $0.6700 Buy Now
DISTI # 650-RUEF400K
Mouser Electronics Resettable Fuses - PPTC 4A 30V 40A Imax RoHS: Compliant 789
  • 1 $0.5600
  • 10 $0.5130
  • 50 $0.4260
  • 100 $0.3930
  • 250 $0.3540
  • 500 $0.3250
  • 1,000 $0.3000
  • 2,500 $0.2950
  • 5,000 $0.2500
$0.2500 / $0.5600 Buy Now
DISTI # V36:1790_11453577
Arrow Electronics PTC Resettable Fuse 4A(hold) 8A(trip) 30VAC/30VDC 100A 2.5W 12.7s 0.01Ohm Radial 14 X 3 X 19.3mm Bag RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 15 Weeks Date Code: 2510 Americas - 277
  • 1 $0.5130
  • 10 $0.4709
  • 25 $0.3948
  • 100 $0.3305
  • 500 $0.3043
  • 1,000 $0.2440
$0.2440 / $0.5130 Buy Now
DISTI # 59415865
Verical PTC Resettable Fuse 4A(hold) 8A(trip) 30VAC/30VDC 100A 2.5W 12.7s 0.01Ohm Radial 14 X 3 X 19.3mm Bag RoHS: Compliant Min Qty: 143 Package Multiple: 1 Date Code: 2101 Americas - 500
  • 143 $0.5732
  • 250 $0.5502
  • 500 $0.5303
$0.5303 / $0.5732 Buy Now
DISTI # 88122629
Verical PTC Resettable Fuse 4A(hold) 8A(trip) 30VAC/30VDC 100A 2.5W 12.7s 0.01Ohm Radial 14 X 3 X 19.3mm Bag RoHS: Compliant Min Qty: 25 Package Multiple: 1 Date Code: 2510 Americas - 277
  • 25 $0.3948
  • 100 $0.3305
  • 500 $0.3043
  • 1,000 $0.2440
$0.2440 / $0.3948 Buy Now
DISTI # 58785971
Verical PTC Resettable Fuse 4A(hold) 8A(trip) 30VAC/30VDC 100A 2.5W 12.7s 0.01Ohm Radial 14 X 3 X 19.3mm Bag RoHS: Compliant Min Qty: 34 Package Multiple: 1 Date Code: 2101 Americas - 34
  • 34 $2.2170
$2.2170 Buy Now
Quest Components   1609
  • 1 $2.7480
  • 473 $1.1336
  • 883 $1.0305
$1.0305 / $2.7480 Buy Now
DISTI # RUEF400K
TTI Resettable Fuses - PPTC 4A 30V 40A Imax RoHS: Compliant pbFree: Pb-Free Min Qty: 50 Package Multiple: 50 Container: Bulk Americas - 3500
In Stock
  • 50 $0.3830
  • 100 $0.3750
  • 250 $0.3680
  • 500 $0.3610
  • 1,000 $0.3540
  • 1,500 $0.3470
  • 2,500 $0.3400
$0.3400 / $0.3830 Buy Now
LCSC 30V 4A 100A 8A Plugin Resettable Fuses ROHS 10
  • 1 $0.7696
  • 10 $0.7514
  • 30 $0.7408
  • 100 $0.7287
$0.7287 / $0.7696 Buy Now
New Advantage Corporation RUEF Series 30 V 4 A Ihold Radial PTC PolySwitch Resettable Fuse RoHS: Compliant Min Qty: 1 Package Multiple: 1 2818
  • 400 $0.4167
  • 2,818 $0.3846
$0.3846 / $0.4167 Buy Now

Part Details for RUEF400K

RUEF400K CAD Models

  • Part Symbol

    Part Symbol

  • Footprint

    footprint

  • 3D Model

    3D Model

Available Download Formats

Sign in to download CAD models Register or Sign In

By downloading CAD models, you agree to our Terms & Conditions and Privacy Policy

RUEF400K Part Data Attributes

Parametric Data
RUEF400K Littelfuse Inc
Buy Now Datasheet
Compare Parts:
RUEF400K Littelfuse Inc PTC Resettable Fuse, 0.05ohm, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer LITTELFUSE INC
Package Description RADIAL LEADED, ROHS COMPLIANT
Reach Compliance Code compliant
Samacsys Manufacturer LITTELFUSE
Additional Feature RESISTANCE RANGE(MIN-MAX): 0.01-0.03
JESD-609 Code e3
Mounting Feature THROUGH HOLE MOUNT
Number of Terminals 2
Operating Temperature-Max 85 °C
Package Shape RECTANGULAR PACKAGE
Packing Method BULK
Rated Power Dissipation (P) 2.5 W
Resistance 0.05 Ω
Resistor Type PTC RESETTABLE FUSE
Surface Mount NO
Terminal Finish Matte Tin (Sn)
Terminal Placement RADIAL
Terminal Shape WIRE
Thermistor Application TEMPERATURE SENSING

Alternate Parts for RUEF400K

This table gives cross-reference parts and alternative options found for RUEF400K. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of RUEF400K, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
RUEF400-2 Littelfuse Inc $0.4008 PTC Resettable Fuse, 0.05ohm, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT RUEF400K vs RUEF400-2
RUEF400-2 TE Connectivity $0.4177 PTC Resettable Fuse, 0.05ohm, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT RUEF400K vs RUEF400-2
RUEF400-1 TE Connectivity $0.4762 PTC Resettable Fuse, 0.05ohm, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT RUEF400K vs RUEF400-1
RF2753-000 Littelfuse Inc $0.4896 PTC Resettable Fuse RUEF400K vs RF2753-000
RUEF400-AP TE Connectivity Check for Price PTC Resettable Fuse, 0.05ohm, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT RUEF400K vs RUEF400-AP
RF2729-000 Littelfuse Inc Check for Price PTC Resettable Fuse, 0.05ohm, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT RUEF400K vs RF2729-000
RUE400 TE Connectivity Check for Price RESISTOR, TEMPERATURE DEPENDENT, PTC, THROUGH HOLE MOUNT, RADIAL LEADED RUEF400K vs RUE400
RUEF400-1 Littelfuse Inc Check for Price PTC Resettable Fuse, 0.05ohm, Through Hole Mount, RADIAL LEADED, ROHS COMPLIANT RUEF400K vs RUEF400-1
Part Number Manufacturer Composite Price Description Compare
RUE400K-1 TE Connectivity Check for Price RESISTOR, TEMPERATURE DEPENDENT, PTC, THROUGH HOLE MOUNT, RADIAL LEADED RUEF400K vs RUE400K-1
RUE400K-X.X TE Connectivity Check for Price RESISTOR, TEMPERATURE DEPENDENT, PTC, THROUGH HOLE MOUNT, RADIAL LEADED RUEF400K vs RUE400K-X.X
RUE400K-AP TE Connectivity Check for Price RESISTOR, TEMPERATURE DEPENDENT, PTC, THROUGH HOLE MOUNT, RADIAL LEADED RUEF400K vs RUE400K-AP
RUE400-AP TE Connectivity Check for Price RESISTOR, TEMPERATURE DEPENDENT, PTC RESETTABLE FUSE, THROUGH HOLE MOUNT, RADIAL LEADED RUEF400K vs RUE400-AP
RUE400-1 TE Connectivity Check for Price RESISTOR, TEMPERATURE DEPENDENT, PTC RESETTABLE FUSE, THROUGH HOLE MOUNT, RADIAL LEADED RUEF400K vs RUE400-1
RXE300-1 TE Connectivity Check for Price RESISTOR, TEMPERATURE DEPENDENT, PTC RESETTABLE FUSE, THROUGH HOLE MOUNT, RADIAL LEADED RUEF400K vs RXE300-1
RXE300-2 TE Connectivity Check for Price RESISTOR, TEMPERATURE DEPENDENT, PTC RESETTABLE FUSE, THROUGH HOLE MOUNT, RADIAL LEADED RUEF400K vs RXE300-2
PFRX.300 Schurter Electronic Components Check for Price RESISTOR, TEMPERATURE DEPENDENT, PTC RESETTABLE FUSE, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT RUEF400K vs PFRX.300

RUEF400K Related Parts

RUEF400K Frequently Asked Questions (FAQ)

  • The recommended mounting torque for the RUEF400K is 10-15 in-lbs (1.1-1.7 Nm).

  • Yes, the RUEF400K is designed to operate in high-temperature applications up to 150°C (302°F). However, the fuse's current rating may be derated at higher temperatures.

  • Yes, the RUEF400K is designed to withstand high-vibration environments and meets the vibration requirements of IEC 60068-2-6.

  • Yes, the RUEF400K is designed for outdoor use and meets the environmental requirements of IEC 60068-2-11.

  • The recommended wire size for connecting to the RUEF400K is 14 AWG (2.5 mm²) or larger.

Share by Email

Something went wrong!
Please enter a valid e-mail address
Email sent!
Recipient Email:
Add a recipient
Hello!

We are passing along some cool findings on Findchips sent to you from .

The data is for RUEF400K by Littelfuse Inc.
They’ve also added a data comparison to this page with by .

Click on the link below to check it out on Findchips.com.

Update Alert Settings for: RUEF400K by Littelfuse Inc

Select Manufacturer
Which Manufacturer of RUEF400K would you like to use for your alert(s)?
Inventory Alert
  • Please alert me when RUEF400K inventory levels are or equal to a quantity of from one of my selected distributors.
  • Also alert me for RUEF400K alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.
No pricing information is available at this time
Pricing Alert
  • Please alert me when the single part price for RUEF400K to
    $
    for at least parts from one of my selected distributors.
    Your Pricing Alert is set to expire on .
    Set this alert to expire in Update this alert to expire · Expired on
  • Also alert me for RUEF400K alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.

Your part alert has been saved!

Alerts are triggered based off of individual distributors that you choose. Select your distributor(s) below.

Your part alert has been saved!

Register
Password Guidelines

Is at least 8 characters in length

Must include at least 3 of the following:

One lower-case character (a-z)

One upper-case character (A-Z)

One numeric character (0-9)

One special character (!#$%^&*)

Alert is successfully saved for RUEF400K.
Looks like you've reached your alert limit!  Please delete some alerts or contact us if you need help.

Compare RUEF400K by Littelfuse Inc

Select a part to compare:
Part Number Manufacturer Description
No result found.
Something went wrong!
Or search for a different part: