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HomeProductsCircuit ProtectionFuses043702.5WR
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043702.5WR - Littelfuse Inc.

Manufacturer Part Number
043702.5WR
Manufacturer
Littelfuse
Allelco Part Number
32D-043702.5WR
ECAD Model
Parts Description
FUSE BOARD MNT 2.5A 32VAC 35VDC
Package
1206 (3216 Metric)
Data sheet
437 Series.pdf
437 Series.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 64660

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Specifications

043702.5WR Tech Specifications
Littelfuse Inc. - 043702.5WR technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - 043702.5WR

Product Attribute Attribute Value  
Manufacturer Littelfuse  
Voltage Rating - DC 35 V  
Voltage Rating - AC 32 V  
Size / Dimension 0.126" L x 0.064" W x 0.032" H (3.20mm x 1.63mm x 0.82mm)  
Series 437  
Response Time Fast Blow  
Package / Case 1206 (3216 Metric)  
Package Tape & Reel (TR)  
Operating Temperature -55°C ~ 150°C  
Product Attribute Attribute Value  
Mounting Type Surface Mount  
Melting I²t 0.225  
Fuse Type Board Mount (Cartridge Style Excluded)  
DC Cold Resistance 0.043 Ohms  
Current Rating (Amps) 2.5 A  
Color -  
Breaking Capacity @ Rated Voltage 50A  
Approval Agency CSA, UR  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8536.10.0040

Parts Introduction

Manufacturer Part Number

5WR

Manufacturer

littelfuse

Introduction

The littelfuse 043702.5WR is a high-performance surface mount fuse designed for circuit protection in a variety of electronic applications. This fuse offers reliable and fast-acting overcurrent protection, ensuring the safety and integrity of delicate electronic components.

Product Features and Performance

5A current rating

32V AC / 35V DC voltage rating

Fast-blow response time for quick interruption of excessive current

50A breaking capacity at rated voltage

225 melting I²t for precise and consistent operation

Operating temperature range of -55°C to 150°C

Product Advantages

Compact 1206 (3216 metric) surface mount package for efficient board utilization

Robust construction for reliable performance and long service life

Compliance with industry-standard safety certifications (CSA, UL)

Suitable for a wide range of electronic applications

Key Reasons to Choose This Product

Dependable overcurrent protection for sensitive electronic circuits

Compact and space-efficient design for easy integration into tight spaces

Consistent and predictable performance for reliable circuit protection

Compliance with safety standards for peace of mind

Quality and Safety Features

Rigorous testing and quality control measures to ensure consistent performance

Compliance with industry safety standards (CSA, UL) for enhanced protection

Robust construction and materials for long-lasting reliability

Compatibility

This fuse is suitable for a wide range of electronic applications, including:

Consumer electronics

Industrial equipment

Telecommunication systems

Automotive electronics

Power supplies

Application Areas

Circuit protection in various electronic devices

Overcurrent protection for sensitive components

Safety backup for critical power circuits

Product Lifecycle

The 043702.5WR is an active product in the littelfuse portfolio. There are no immediate plans for discontinuation, and it remains a viable option for customers' circuit protection needs. If you require information about equivalent or alternative models, please contact our sales team through our website for the most up-to-date product availability and recommendations.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. 043702.5WR

Product Attribute 043702.5WR 0438.500WRA 0437005.WRA 0437008.WR
Part Number 043702.5WR 0438.500WRA 0437005.WRA 0437008.WR
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
DC Cold Resistance 0.043 Ohms 0.829 Ohms 0.0159 Ohms 0.0084 Ohms
Breaking Capacity @ Rated Voltage 50A 50A 50A 50A
Color - - - -
Size / Dimension 0.126" L x 0.064" W x 0.032" H (3.20mm x 1.63mm x 0.82mm) 0.062" L x 0.033" W x 0.024" H (1.58mm x 0.85mm x 0.61mm) 0.126" L x 0.064" W x 0.033" H (3.20mm x 1.63mm x 0.84mm) 0.126" L x 0.064" W x 0.032" H (3.20mm x 1.63mm x 0.82mm)
Series 437 438A 437A 437
Package / Case 1206 (3216 Metric) 0603 (1608 Metric) 1206 (3216 Metric) 1206 (3216 Metric)
Voltage Rating - AC 32 V 32 V 32 V 32 V
Approval Agency CSA, UR CSA, UR CSA, cURus CSA, UR
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Melting I²t 0.225 0.01 2.3 6.4
Current Rating (Amps) 2.5 A 500 mA 5 A 8 A
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Response Time Fast Blow Fast Blow Fast Blow Fast Blow
Fuse Type Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded)
Operating Temperature -55°C ~ 150°C -55°C ~ 150°C -55°C ~ 150°C -55°C ~ 150°C
Voltage Rating - DC 35 V 63 V 35 V 35 V

043702.5WR Datasheet PDF

Download 043702.5WR pdf datasheets and Littelfuse Inc. documentation for 043702.5WR - Littelfuse Inc..

Datasheets
437 Series.pdf
HTML Datasheet
437 Series.pdf
PCN Design/Specification
TF 437/ 501 Series Marking Chg 16/Jul/2015.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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043702.5WR Image

043702.5WR

Littelfuse Inc.
32D-043702.5WR

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