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HomeProductsCircuit ProtectionPTC Resettable FusesRUEF500-2
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RUEF500-2 - Littelfuse Inc.

Manufacturer Part Number
RUEF500-2
Manufacturer
Littelfuse
Allelco Part Number
32D-RUEF500-2
ECAD Model
Parts Description
PTC RESET FUSE 30V 5A RADIAL
Package
Radial, Disc
Data sheet
PolySwitch, Radial-leaded Catalog.pdf
RUEF Series Datasheet.pdf
RUEF Series Datasheet.pdf
RUEF500 Spec.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 92910

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Specifications

RUEF500-2 Tech Specifications
Littelfuse Inc. - RUEF500-2 technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - RUEF500-2

Product Attribute Attribute Value  
Manufacturer Littelfuse  
Voltage - Max 30V  
Type Polymeric  
Time to Trip 14.5 s  
Thickness (Max) -  
Size / Dimension 0.551" L x 0.120" W (14.00mm x 3.00mm)  
Series PolySwitch®, RUEF  
Resistance - Post Trip (R1) (Max) 50 mOhms  
Resistance - Initial (Ri) (Min) 10 mOhms  
Ratings -  
Product Attribute Attribute Value  
Package / Case Radial, Disc  
Package Tape & Reel (TR)  
Operating Temperature -40°C ~ 85°C  
Mounting Type Through Hole  
Lead Spacing 0.400" (10.15mm)  
Height - Seated (Max) 0.949" (24.10mm)  
Current - Trip (It) 10 A  
Current - Max 100 A  
Current - Hold (Ih) (Max) 5 A  
Approval Agency CQC, CSA, TUV, UL  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) Not Applicable
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8533.40.8070

Parts Introduction

Manufacturer Part Number

RUEF500-2

Manufacturer

littelfuse

Introduction

The littelfuse RUEF500-2 is a high-performance polymeric resettable fuse designed for circuit protection applications. This device offers reliable overcurrent and short-circuit protection, ensuring the safety and reliability of your electronic systems.

Product Features and Performance

Polymeric design for fast and reliable trip response

Operating temperature range of -40°C to 85°C

Hold current of 5A and trip current of 10A

Maximum current rating of 100A

Low initial resistance of 10mOhms

Post-trip resistance of up to 50mOhms

Compact radial disc package with through-hole mounting

Product Advantages

Robust and reliable circuit protection

Automatic reset functionality for easy system recovery

Compact and space-saving design

Wide operating temperature range for diverse applications

Compliance with various safety agency approvals

Key Reasons to Choose This Product

Proven performance in demanding electronic applications

Comprehensive circuit protection against overcurrent and short-circuit events

Hassle-free device reset for uninterrupted system operation

Trusted brand reputation and technical support from Littelfuse

Quality and Safety Features

Approved by leading safety agencies, including CQC, CSA, TUV, and UL

Robust design and manufacturing process for consistent quality and reliability

Compatibility

The RUEF500-2 is compatible with a wide range of electronic devices and systems that require reliable circuit protection.

Application Areas

Consumer electronics

Industrial automation

Telecommunications equipment

Automotive electronics

Power supplies

Product Lifecycle

The RUEF500-2 is an active product in the Littelfuse portfolio. There are no plans for discontinuation at this time. If you require further information or need to explore alternative options, please contact our website's sales team.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. RUEF500-2

Product Attribute RUEF500-2 RUEF400 RUEF300U RUEF600
Part Number RUEF500-2 RUEF400 RUEF300U RUEF600
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Mounting Type Through Hole Through Hole Through Hole Through Hole
Time to Trip 14.5 s 12.7 s 10.8 s 16 s
Resistance - Post Trip (R1) (Max) 50 mOhms 50 mOhms 80 mOhms 40 mOhms
Type Polymeric Polymeric Polymeric Polymeric
Thickness (Max) - - - -
Current - Hold (Ih) (Max) 5 A 4 A 3 A 6 A
Ratings - - - -
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Approval Agency CQC, CSA, TUV, UL CQC, CSA, TUV, UL CQC, CSA, TUV, UL CQC, CSA, TUV, UL
Series PolySwitch®, RUEF PolySwitch®, RUEF PolySwitch®, RUEF PolySwitch®, RUEF
Size / Dimension 0.551" L x 0.120" W (14.00mm x 3.00mm) 0.551" L x 0.118" W (14.00mm x 3.00mm) 0.449' L x 0.118' W (11.40mm x 3.00mm) 0.650' L x 0.118' W (16.50mm x 3.00mm)
Resistance - Initial (Ri) (Min) 10 mOhms 10 mOhms 20 mOhms 5 mOhms
Package Tape & Reel (TR) Bag Bag Bag
Lead Spacing 0.400" (10.15mm) 0.199" (5.05mm) 0.199' (5.05mm) 0.400' (10.15mm)
Height - Seated (Max) 0.949" (24.10mm) 0.760" (19.30mm) 0.650' (16.50mm) 0.949' (24.10mm)
Voltage - Max 30V 30V 30V 30V
Package / Case Radial, Disc Radial, Disc Radial, Disc Radial, Disc
Current - Max 100 A 100 A 100 A 100 A
Current - Trip (It) 10 A 8 A 6 A 12 A

RUEF500-2 Datasheet PDF

Download RUEF500-2 pdf datasheets and Littelfuse Inc. documentation for RUEF500-2 - Littelfuse Inc..

Datasheets
PolySwitch, Radial-leaded Catalog.pdf RUEF Series Datasheet.pdf RUEF500 Spec.pdf
PCN Packaging
Mult Dev Shipping Chgs 9/Jun/2020.pdf
HTML Datasheet
RUEF Series Datasheet.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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RUEF500-2 Image

RUEF500-2

Littelfuse Inc.
32D-RUEF500-2

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