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HomeProductsCircuit ProtectionFuses0437003.WR
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0437003.WR - Littelfuse Inc.

Manufacturer Part Number
0437003.WR
Manufacturer
Littelfuse
Allelco Part Number
32D-0437003.WR
ECAD Model
Parts Description
FUSE BRD MNT 3A 32VAC 35VDC 1206
Package
1206 (3216 Metric)
Data sheet
Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 51080

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Quantity
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Payment method
Our certification

Specifications

0437003.WR Tech Specifications
Littelfuse Inc. - 0437003.WR technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - 0437003.WR

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 0.4  
Fuse Type Board Mount (Cartridge Style Excluded)  
DC Cold Resistance 0.033 Ohms  
Current Rating (Amps) 3 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

WR

Manufacturer

littelfuse

Introduction

The littelfuse 0437003.WR is a high-performance, surface mount circuit protection fuse designed for a wide range of applications. This fuse offers reliable overcurrent protection, ensuring the safety and reliability of your electronic devices.

Product Features and Performance

Surface mount design for easy integration into PCBs

Fast blow response time to quickly interrupt fault currents

Current rating of 3A to protect against overloads and short circuits

Voltage ratings of 32VAC and 35VDC to handle a variety of power supply voltages

Breaking capacity of 50A at rated voltage for robust fault protection

Melting I²t of 0.4 for precise fuse response

Compact 1206 (3216 metric) package size

Product Advantages

Reliable overcurrent protection to prevent damage to sensitive electronic components

Compact and space-saving design for efficient board layout

Fast response time to minimize damage during fault conditions

Wide operating temperature range of -55°C to 150°C for versatile use

Key Reasons to Choose This Product

Robust circuit protection to ensure the safety and reliability of your electronic devices

Proven performance and quality from a trusted manufacturer, Littelfuse

Versatile design suitable for a wide range of applications

Compact and easy-to-integrate surface mount package

Quality and Safety Features

Approved by CSA and UR for quality and safety compliance

Designed and manufactured to the highest standards of reliability and durability

Compatibility

This fuse is compatible with a wide range of electronic devices and applications that require reliable circuit protection, including:

Consumer electronics

Industrial equipment

Automotive systems

Power supplies

Telecommunications equipment

Application Areas

Overcurrent protection for sensitive electronic components

Short circuit protection for power supply circuits

Fault current interruption in various electronic systems

Product Lifecycle

The littelfuse 0437003.WR is an active product currently in production. There are no plans for discontinuation at this time. If you require further information or have questions about equivalent or alternative models, please contact our sales team through our website.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. 0437003.WR

Product Attribute 0437003.WR 0437002.WRA 0437005.WRA 0437.750WR
Part Number 0437003.WR 0437002.WRA 0437005.WRA 0437.750WR
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Package / Case 1206 (3216 Metric) 1206 (3216 Metric) 1206 (3216 Metric) 1206 (3216 Metric)
Color - - - -
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Current Rating (Amps) 3 A 2 A 5 A 750 mA
Response Time Fast Blow Fast Blow Fast Blow Fast Blow
Melting I²t 0.4 0.197 2.3 0.064
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Approval Agency CSA, UR CSA, cURus CSA, cURus CSA, UR
Breaking Capacity @ Rated Voltage 50A 50A 50A 50A
Operating Temperature -55°C ~ 150°C -55°C ~ 150°C -55°C ~ 150°C -55°C ~ 150°C
Series 437 437A 437A 437
Voltage Rating - DC 35 V 63 V 35 V 63 V
Voltage Rating - AC 32 V 63 V 32 V 63 V
DC Cold Resistance 0.033 Ohms - 0.0159 Ohms 0.665 Ohms
Fuse Type Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded)
Size / Dimension 0.126' L x 0.064' W x 0.032' H (3.20mm x 1.63mm x 0.82mm) 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 0.033" 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)

0437003.WR Datasheet PDF

Download 0437003.WR pdf datasheets and Littelfuse Inc. documentation for 0437003.WR - Littelfuse Inc..

HTML Datasheet
Cylindrical Battery Holders.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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0437003.WR Image

0437003.WR

Littelfuse Inc.
32D-0437003.WR

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