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HomeProductsCircuit ProtectionPTC Resettable FusesFSMD300R
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FSMD300R - RFE/Fuzetec

Manufacturer Part Number
FSMD300R
Manufacturer
RFE/Fuzetec
Allelco Part Number
32D-FSMD300R
ECAD Model
Parts Description
RESETTABLE FUSE - SMD, 1812 SIZE
Detailed Description
Package
1812 (4532 Metric), Concave
Data sheet
FSMD1812 Series.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 307550
  • Unit Price: $0.29
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
50+ $0.29 $14.50
100+ $0.25 $25.00
250+ $0.23 $57.50
500+ $0.20 $100.00
1000+ $0.18 $180.00
1500+ $0.13 $195.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.
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Our certification

Specifications

FSMD300R Tech Specifications
RFE/Fuzetec - FSMD300R technical specifications, attributes, parameters and parts with similar specifications to RFE/Fuzetec - FSMD300R

Product Attribute Attribute Value  
Manufacturer RFE/Fuzetec  
Voltage - Max 6V  
Type -  
Time to Trip 4 s  
Thickness (Max) 0.061" (1.55mm)  
Size / Dimension 0.179" L x 0.128" W (4.55mm x 3.24mm)  
Series FSMD1812  
Resistance - Post Trip (R1) (Max) 40 mOhms  
Resistance - Initial (Ri) (Min) 12 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) 5 A  
Current - Max 100 A  
Current - Hold (Ih) (Max) 3 A  
Approval Agency cUL, TUV, UL  

Parts Introduction

Manufacturer Part Number

FSMD300R

Manufacturer

rfe-fuzetec

Introduction

The FSMD300R is a surface mount, resettable PTC (Positive Temperature Coefficient) fuse from rfe-fuzetec. It is designed to provide overcurrent and overtemperature protection for sensitive electronic circuits and devices. This compact 1812 (4532 metric) fuse offers reliable circuit protection with its fast trip time and low resistance.

Product Features and Performance

Rated for up to 6V voltage

Hold current of 3A and trip current of 5A

Maximum current capacity of 100A

4 second time to trip

Initial resistance of 12mΩ, post-trip resistance of 40mΩ

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

Product Advantages

Resettable design allows the fuse to automatically reset after the overcurrent condition is resolved

Compact 1812 (4532 metric) surface mount package

Fast acting with 4 second time to trip

Low resistance for minimal voltage drop

Key Reasons to Choose This Product

Reliable circuit protection for sensitive electronics

Compact size allows for space-constrained designs

Automatic reset feature eliminates the need to replace the fuse

Certified to cUL, TUV, and UL safety standards

Quality and Safety Features

Certified to cUL, TUV, and UL safety standards

Designed and manufactured to high quality standards

Compatibility

The FSMD300R is a surface mount, resettable PTC fuse that can be used in a variety of electronic devices and applications.

Application Areas

Computers and peripherals

Consumer electronics

Industrial equipment

Telecommunications equipment

Automotive electronics

Product Lifecycle

The FSMD300R is an active product. There are equivalent or alternative models available from rfe-fuzetec, but for the most up-to-date information, please contact our website's sales team.

Parts with Similar Specifications

The three parts on the right have similar specifications to RFE/Fuzetec FSMD300R

Product Attribute FSMD300R FSMD200-16R FSMD500-16-2920R FSMD200R
Part Number FSMD300R FSMD200-16R FSMD500-16-2920R FSMD200R
Manufacturer RFE/Fuzetec RFE/Fuzetec RFE/Fuzetec RFE/Fuzetec
Package / Case 1812 (4532 Metric), Concave 1812 (4532 Metric), Concave 2920 (7351 Metric), Concave 1812 (4532 Metric), Concave
Current - Trip (It) 5 A 3.5 A 10 A 3.5 A
Series FSMD1812 FSMD1812 FSMD2920 FSMD1812
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Resistance - Post Trip (R1) (Max) 40 mOhms 85 mOhms 25 mOhms 70 mOhms
Approval Agency cUL, TUV, UL cUL, TUV, UL cUL, TUV, UL cUL, TUV, UL
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) 0.290" L x 0.202" W (7.36mm x 5.12mm) 0.179" L x 0.128" W (4.55mm x 3.24mm)
Current - Hold (Ih) (Max) 3 A 2 A 5 A 2 A
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Time to Trip 4 s 5 s 5 s 2 s
Ratings - - - -
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Height - Seated (Max) - - - -
Type - - - -
Lead Spacing - - - -
Current - Max 100 A 100 A 100 A 100 A
Voltage - Max 6V 16V 16V 8V
Resistance - Initial (Ri) (Min) 12 mOhms 20 mOhms 5 mOhms 20 mOhms
Thickness (Max) 0.061" (1.55mm) 0.061" (1.55mm) 0.059" (1.50mm) 0.047" (1.20mm)

FSMD300R Datasheet PDF

Download FSMD300R pdf datasheets and RFE/Fuzetec documentation for FSMD300R - RFE/Fuzetec.

Datasheets
FSMD1812 Series.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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FSMD300R

RFE/Fuzetec
32D-FSMD300R

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