View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsCircuit ProtectionFuses0437001.WR
0437001.WR Image
Image may be representation.
See specifications for product details.
EXPRESS OPTION
Payment method

0437001.WR - Littelfuse Inc.

Manufacturer Part Number
0437001.WR
Manufacturer
Littelfuse
Allelco Part Number
32D-0437001.WR
ECAD Model
Parts Description
FUSE BOARD MNT 1A 63VAC/VDC 1206
Package
1206 (3216 Metric)
Data sheet
Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 57620

Required fields are indicated by an asterisk (*)
Please send RFQ, we will respond immediately.

Quantity
EXPRESS OPTION
Payment method
Our certification

Specifications

0437001.WR Tech Specifications
Littelfuse Inc. - 0437001.WR technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - 0437001.WR

Product Attribute Attribute Value  
Manufacturer Littelfuse  
Voltage Rating - DC 63 V  
Voltage Rating - AC 63 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 0.1  
Fuse Type Board Mount (Cartridge Style Excluded)  
DC Cold Resistance 0.36 Ohms  
Current Rating (Amps) 1 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 0437001.WR is a surface mount fuse from Littelfuse's 437 series. It is a fast-blow, board-mountable fuse designed to provide reliable circuit protection in a compact 1206 package. This fuse offers a range of performance characteristics and safety approvals, making it suitable for use in various electronic applications.

Product Features and Performance

Rated for 1A current, 63V AC/DC voltage

Fast-blow response time

Compact 1206 (3216 metric) package size

Wide operating temperature range of -55°C to 150°C

Low DC cold resistance of 0.36 Ohms

Breaking capacity of 50A at rated voltage

Melting I²t of 0.1

Product Advantages

Reliable circuit protection in a small footprint

Fast-acting fuse response to prevent damage

Suitable for a wide range of operating conditions

Compliance with safety standards (CSA, UR)

Key Reasons to Choose This Product

Compact size and surface mount design for space-constrained applications

Robust performance characteristics to meet diverse circuit protection needs

Trusted Littelfuse brand quality and reliability

Safety approvals for confidence in use

Quality and Safety Features

Compliant with CSA and UL safety standards

Designed for reliable performance and long service life

Compatibility

Suitable for use in a variety of electronic devices and equipment

Application Areas

Suitable for use in consumer electronics, industrial equipment, and other applications requiring compact circuit protection

Product Lifecycle

The 0437001.WR is an active product in Littelfuse's 437 series. There are equivalent and alternative models available from Littelfuse, such as the 0437002.WR and 0437003.WR, which offer similar ratings and characteristics. Customers are advised to contact our website's sales team for the most up-to-date information on product availability and alternatives.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. 0437001.WR

Product Attribute 0437001.WR 0437001.WRA 0437.500WR 0437002.WR
Part Number 0437001.WR 0437001.WRA 0437.500WR 0437002.WR
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Melting I²t 0.1 0.1 0.018 0.144
Voltage Rating - AC 63 V 63 V 63 V 63 V
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Series 437 437A 437 437
Fuse Type Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded) Board Mount (Cartridge Style Excluded)
DC Cold Resistance 0.36 Ohms - 0.908 Ohms 0.058 Ohms
Package / Case 1206 (3216 Metric) 1206 (3216 Metric) 1206 (3216 Metric) 1206 (3216 Metric)
Approval Agency CSA, UR CSA, cURus CSA, UR CSA, UR
Voltage Rating - DC 63 V 63 V 63 V 63 V
Current Rating (Amps) 1 A 1 A 500 mA 2 A
Response Time Fast Blow Fast Blow Fast Blow Fast Blow
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 0.032' H (3.20mm x 1.63mm x 0.82mm) 0.126" L x 0.064" W x 0.032" H (3.20mm x 1.63mm x 0.82mm)
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
Color - - - -

0437001.WR Datasheet PDF

Download 0437001.WR pdf datasheets and Littelfuse Inc. documentation for 0437001.WR - Littelfuse Inc..

HTML Datasheet
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

View More
0437001.WR Image

0437001.WR

Littelfuse Inc.
32D-0437001.WR

Want a better price? Please Add to Cart, we'll contact you immediately.

0 RFQ
Shopping cart (0 Items)
It is empty.
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB