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HomeProductsCircuit ProtectionPTC Resettable Fuses250R145-RAU
250R145-RAU Image
Image may be representation.
See specifications for product details.

250R145-RAU - Littelfuse Inc.

Manufacturer Part Number
250R145-RAU
Manufacturer
Littelfuse
Allelco Part Number
32D-250R145-RAU
ECAD Model
Parts Description
PTC RESET FUSE 60V 145MA RADIAL
Detailed Description
Package
Radial, Disc
Data sheet
Cylindrical Battery Holders.pdf
Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
In stock: 4150

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Quantity

Specifications

250R145-RAU Tech Specifications
Littelfuse Inc. - 250R145-RAU technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - 250R145-RAU

Product Attribute Attribute Value  
Manufacturer Littelfuse  
Voltage - Max 60V (250V Int)  
Type Polymeric  
Time to Trip 2.5 s  
Thickness (Max) -  
Size / Dimension 0.256' L x 0.181' W (6.50mm x 4.60mm)  
Series POLY-FUSE®, 250R  
Resistance - Post Trip (R1) (Max) 12 Ohms  
Resistance - Initial (Ri) (Min) 3 Ohms  
Ratings -  
Product Attribute Attribute Value  
Package / Case Radial, Disc  
Package Bulk  
Operating Temperature -40°C ~ 85°C  
Mounting Type Through Hole  
Lead Spacing 0.201' (5.10mm)  
Height - Seated (Max) 0.433' (11.00mm)  
Current - Trip (It) 290 mA  
Current - Max 3 A  
Current - Hold (Ih) (Max) 145 mA  
Approval Agency cURus, TUV  

Parts Introduction

Manufacturer Part Number

250R145-RAU

Manufacturer

littelfuse

Introduction

The littelfuse 250R145-RAU is a polymeric resettable fuse that provides overcurrent and overtemperature protection for electronic circuits. It is part of the POLY-FUSE® 250R series and offers reliable circuit protection in a compact radial disc package.

Product Features and Performance

Voltage rating up to 60V (250V internal)

Hold current of 145mA

Trip current of 290mA

Maximum current of 3A

Time to trip: 2.5 seconds

Initial resistance of 3 ohms (min)

Post-trip resistance of 12 ohms (max)

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

Product Advantages

Resettable design allows the device to be reused after the fault condition is removed

Compact size for space-constrained applications

Reliable overcurrent and overtemperature protection

Approved to cURus and TUV safety standards

Key Reasons to Choose This Product

Proven circuit protection performance in a small footprint

Versatile operating parameters to suit a wide range of applications

Robust construction and safety certifications for reliable operation

Cost-effective solution for protecting sensitive electronic components

Quality and Safety Features

Approved to cURus and TUV safety standards

Reliable construction for long-lasting performance

Compatibility

This product is compatible with a variety of electronic devices and circuits that require overcurrent and overtemperature protection.

Application Areas

Consumer electronics

Industrial equipment

Telecommunications equipment

Automotive electronics

Product Lifecycle

The 250R145-RAU is an obsolete product. Customers should contact our website's sales team for information on equivalent or alternative models that may be available.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. 250R145-RAU

Product Attribute 250R145-RAU 250R180MR 250R120TU 250R145-RBU
Part Number 250R145-RAU 250R180MR 250R120TU 250R145-RBU
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Current - Trip (It) 290 mA 650 mA 240 mA 290 mA
Size / Dimension 0.256' L x 0.181' W (6.50mm x 4.60mm) 0.374' Dia x 0.181' T (9.50mm x 4.60mm) 0.256' L x 0.181' W (6.50mm x 4.60mm) 0.256' L x 0.181' W (6.50mm x 4.60mm)
Voltage - Max 60V (250V Int) 60V (250V Int) 60V (250V Int) 60V (250V Int)
Ratings - - - -
Lead Spacing 0.201' (5.10mm) 0.201' (5.10mm) 0.201' (5.10mm) 0.201' (5.10mm)
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Current - Max 3 A 10 A 3 A 3 A
Time to Trip 2.5 s 20 s 2.5 s 2.5 s
Resistance - Initial (Ri) (Min) 3 Ohms 800 mOhms 7 Ohms 4.5 Ohms
Series POLY-FUSE®, 250R POLY-FUSE®, 250R POLY-FUSE®, 250R POLY-FUSE®, 250R
Package Bulk Cut Tape (CT) Bulk Bulk
Type Polymeric Polymeric Polymeric Polymeric
Height - Seated (Max) 0.433' (11.00mm) 0.472' (12.00mm) 0.433' (11.00mm) 0.433' (11.00mm)
Approval Agency cURus, TUV cURus, TUV cURus, TUV cURus, TUV
Resistance - Post Trip (R1) (Max) 12 Ohms 4 Ohms 16 Ohms 14 Ohms
Mounting Type Through Hole Through Hole Through Hole Through Hole
Current - Hold (Ih) (Max) 145 mA 180 mA 120 mA 145 mA
Thickness (Max) - - - -
Package / Case Radial, Disc Radial, Disc Radial, Disc Radial, Disc

250R145-RAU Datasheet PDF

Download 250R145-RAU pdf datasheets and Littelfuse Inc. documentation for 250R145-RAU - Littelfuse Inc..

Datasheets
Cylindrical Battery Holders.pdf
HTML Datasheet
Cylindrical Battery Holders.pdf
PCN Obsolescence/ EOL
Cylindrical Battery Holders.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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250R145-RAU Image

250R145-RAU

Littelfuse Inc.
32D-250R145-RAU

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