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HomeProductsCircuit ProtectionPTC Resettable Fuses1812L020PR
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1812L020PR - Littelfuse Inc.

Manufacturer Part Number
1812L020PR
Manufacturer
Littelfuse
Allelco Part Number
32D-1812L020PR
ECAD Model
Parts Description
PTC RESET FUSE 30V 200MA 1812
Package
1812 (4532 Metric), Concave
Data sheet
1812L Series Datasheet.pdf
RoHs Status
ROHS3 Compliant
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Specifications

1812L020PR Tech Specifications
Littelfuse Inc. - 1812L020PR technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - 1812L020PR

Product Attribute Attribute Value  
Manufacturer Littelfuse  
Voltage - Max 30V  
Type Polymeric  
Time to Trip 20 ms  
Thickness (Max) 0.039" (1.00mm)  
Size / Dimension 0.179" L x 0.128" W (4.55mm x 3.24mm)  
Series POLY-FUSE®, 1812L  
Resistance - Post Trip (R1) (Max) 5 Ohms  
Resistance - Initial (Ri) (Min) 800 mOhms  
Ratings -  
Product Attribute Attribute Value  
Package / Case 1812 (4532 Metric), Concave  
Package Tape & Reel (TR)  
Operating Temperature -40°C ~ 85°C  
Mounting Type Surface Mount  
Lead Spacing -  
Height - Seated (Max) -  
Current - Trip (It) 400 mA  
Current - Max 100 A  
Current - Hold (Ih) (Max) 200 mA  
Approval Agency cURus, TUV  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8533.40.8070

Parts Introduction

Manufacturer Part Number

1812L020PR

Manufacturer

littelfuse

Introduction

The 1812L020PR is a polymeric positive temperature coefficient (PPTC) resettable fuse from Littelfuse's POLY-FUSE® series. It is designed to provide overcurrent protection in a wide range of electronic devices and applications, offering reliable circuit protection and resetting capabilities.

Product Features and Performance

Polymeric construction for fast and reliable overcurrent protection

Voltage rating of 30V

Hold current of 200mA and trip current of 400mA

Maximum current rating of 100A

Time to trip: 20ms

Initial resistance of 800mΩ and post-trip resistance of 5Ω

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

Product Advantages

Compact and space-saving 1812 (4532 metric) surface-mount package

Resettable design allows for automatic circuit recovery after fault condition is cleared

Robust performance across a wide temperature range

Approved to cURus and TUV safety standards

Key Reasons to Choose this Product

Reliable overcurrent protection for sensitive electronic circuits

Compact size and surface-mount compatibility for space-constrained designs

Automatic reset function for hassle-free operation

Trusted Littelfuse brand quality and safety

Quality and Safety Features

Approved to cURus and TUV safety standards

Robust polymeric construction for reliable performance

Compatibility

The 1812L020PR is compatible with a wide range of electronic devices and applications that require overcurrent protection, such as:

Consumer electronics

Industrial equipment

Telecom and networking gear

Automotive electronics

Application Areas

Overcurrent protection in electronic circuits

Fault current limiting in power supply circuits

Short-circuit protection in battery-powered devices

Product Lifecycle

The 1812L020PR is an active and available product from Littelfuse. There are no known equivalent or alternative models currently available. For the latest information or assistance, please contact our website's sales team.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. 1812L020PR

Product Attribute 1812L020PR 1812L035/30DR 1812L050/60MR 1812L050PRT
Part Number 1812L020PR 1812L035/30DR 1812L050/60MR 1812L050PRT
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Time to Trip 20 ms 150 ms 150 ms 150 ms
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Thickness (Max) 0.039" (1.00mm) 0.049" (1.25mm) 0.071" (1.80mm) 0.030' (0.75mm)
Package / Case 1812 (4532 Metric), Concave 1812 (4532 Metric), Concave 1812 (4532 Metric), Concave 1812 (4532 Metric), Concave
Size / Dimension 0.179" L x 0.128" W (4.55mm x 3.24mm) 0.179" L x 0.128" W (4.55mm x 3.24mm) 0.179" L x 0.128" W (4.55mm x 3.24mm) 0.179' L x 0.128' W (4.55mm x 3.24mm)
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Ratings - - - -
Current - Hold (Ih) (Max) 200 mA 350 mA 500 mA 500 mA
Lead Spacing - - - -
Voltage - Max 30V 30V 60V 15V
Resistance - Post Trip (R1) (Max) 5 Ohms 1.7 Ohms 1 Ohms 1 Ohms
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Approval Agency cURus, TUV cURus, TUV - cURus, TUV
Height - Seated (Max) - - - -
Resistance - Initial (Ri) (Min) 800 mOhms 400 mOhms 150 mOhms 150 mOhms
Current - Max 100 A 40 A 10 A 100 A
Series POLY-FUSE®, 1812L POLY-FUSE®, 1812L POLY-FUSE®, 1812L POLY-FUSE®, 1812L
Current - Trip (It) 400 mA 750 mA 1 A 1 A
Type Polymeric Polymeric Polymeric Polymeric

1812L020PR Datasheet PDF

Download 1812L020PR pdf datasheets and Littelfuse Inc. documentation for 1812L020PR - Littelfuse Inc..

HTML Datasheet
1812L Series Datasheet.pdf

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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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1812L020PR Image

1812L020PR

Littelfuse Inc.
32D-1812L020PR

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