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HomeProductsCircuit ProtectionPTC Resettable Fuses1812L125/16DR
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1812L125/16DR - Littelfuse Inc.

Manufacturer Part Number
1812L125/16DR
Manufacturer
Littelfuse
Allelco Part Number
32D-1812L125/16DR
ECAD Model
Parts Description
PTC RESET FUSE 16V 1.25A 1812
Package
1812 (4532 Metric), Concave
Data sheet
Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 145920

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Specifications

1812L125/16DR Tech Specifications
Littelfuse Inc. - 1812L125/16DR technical specifications, attributes, parameters and parts with similar specifications to Littelfuse Inc. - 1812L125/16DR

Product Attribute Attribute Value  
Manufacturer Littelfuse  
Voltage - Max 16V  
Type Polymeric  
Time to Trip 400 ms  
Thickness (Max) 0.049' (1.25mm)  
Size / Dimension 0.179' L x 0.128' W (4.55mm x 3.24mm)  
Series POLY-FUSE®, 1812L  
Resistance - Post Trip (R1) (Max) 140 mOhms  
Resistance - Initial (Ri) (Min) 50 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) 2.5 A  
Current - Max 100 A  
Current - Hold (Ih) (Max) 1.25 A  
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

1812L125/16DR

Manufacturer

littelfuse

Introduction

The 1812L125/16DR is a high-performance polymeric positive temperature coefficient (PPTC) resettable fuse from Littelfuse. It is designed to provide overcurrent and overtemperature protection in a compact surface mount package. This device offers reliable circuit protection for a wide range of electronic applications.

Product Features and Performance

Polymeric construction provides reliable resetting capability

Fast-acting response time to protect sensitive electronic components

Withstands high inrush current up to 100A

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

Low initial resistance of 50mΩ (min) for minimal voltage drop

Surface mount package with compact 1812 (4532 metric) size

Product Advantages

Resettable protection simplifies design and reduces maintenance costs

Compact size allows for space-saving circuit board layouts

Reliable performance in demanding operating environments

Tested and approved to UL and TUV safety standards

Key Reasons to Choose This Product

Proven circuit protection solution from a trusted industry leader

Versatile design suitable for a wide range of electronic applications

Robust performance and long service life to ensure reliable operation

Cost-effective alternative to traditional fuses or circuit breakers

Quality and Safety Features

Approved to UL and TUV safety standards for enhanced reliability

Withstands high inrush currents up to 100A for reliable protection

Tested for performance in harsh environmental conditions

Compatibility

The 1812L125/16DR is a direct replacement for a variety of existing PPTC resettable fuse models, making it easy to integrate into existing designs.

Application Areas

Consumer electronics

Industrial equipment

Telecommunications systems

Automotive electronics

Power supplies and chargers

Product Lifecycle

The 1812L125/16DR is an active and currently available product. There are several equivalent and alternative models available, including the 1812L100/16DR, 1812L150/16DR, and 1812L200/16DR, which offer different current ratings to suit various application requirements. For the most up-to-date information on product availability and alternatives, please contact our website's sales team.

Parts with Similar Specifications

The three parts on the right have similar specifications to Littelfuse Inc. 1812L125/16DR

Product Attribute 1812L125/16DR 1812L075PR 1812L125DR 1812L110PRT
Part Number 1812L125/16DR 1812L075PR 1812L125DR 1812L110PRT
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
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)
Series POLY-FUSE®, 1812L POLY-FUSE®, 1812L POLY-FUSE®, 1812L POLY-FUSE®, 1812L
Time to Trip 400 ms 200 ms 0.4 s 300 ms
Current - Max 100 A 100 A 100 A 100 A
Approval Agency cURus, TUV cURus, TUV - cURus, TUV
Package / Case 1812 (4532 Metric), Concave 1812 (4532 Metric), Concave 1812 (4532 Metric), Concave 1812 (4532 Metric), Concave
Resistance - Initial (Ri) (Min) 50 mOhms 100 mOhms 50 mOhms 40 mOhms
Current - Trip (It) 2.5 A 1.5 A 2.5 A 2.2 A
Current - Hold (Ih) (Max) 1.25 A 750 mA 1.25 A 1.1 A
Ratings - - - -
Package Tape & Reel (TR) Tape & Reel (TR) Digi-Reel® Tape & Reel (TR)
Type Polymeric Polymeric Polymeric Polymeric
Lead Spacing - - - -
Height - Seated (Max) - - - -
Voltage - Max 16V 13.2V 15V 8V
Resistance - Post Trip (R1) (Max) 140 mOhms 450 mOhms 140 mOhms 210 mOhms
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Thickness (Max) 0.049' (1.25mm) 0.030' (0.75mm) 0.049" (1.25mm) 0.028' (0.71mm)
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C

1812L125/16DR Datasheet PDF

Download 1812L125/16DR pdf datasheets and Littelfuse Inc. documentation for 1812L125/16DR - 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

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1812L125/16DR Image

1812L125/16DR

Littelfuse Inc.
32D-1812L125/16DR

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