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SMD300F-2 Polymeric PTC resettable fuse rated for 6V max and 3A hold current. Surface mount in a 2-SMD package.
Mfr Part #:

SMD300F-2

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Polymeric PTC resettable fuse rated for 6V max and 3A hold current. Surface mount in a 2-SMD package.
Total Stock: 21 pcs
$ Price Range: $0.27 - $0.84

SMD300F-2 Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
21 pcs
21 pcs On Request 1 On Request On Request On Request On Request On Request

SMD300F-2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Length
Mounting Type
Operating Temperature
Resistance
Tape & Reel
Thickness (Max)
Time to Trip
Type
Voltage
Width

SMD300F-2 Description

Short technical summary and product information.

The Littelfuse SMD300F-2 is a polymeric PTC resettable fuse designed for overcurrent protection in low-voltage circuits. It features a maximum voltage rating of 6V and a hold current of 3A, with an initial resistance of 48 mΩ. The device trips in 35 seconds under fault conditions, providing reliable circuit protection.

 

This component is housed in a compact 2-SMD surface mount package measuring 7.36mm x 5.12mm with a maximum thickness of 3.00mm. It operates over a temperature range of -40°C to 85°C, making it suitable for a variety of environments.

 

As a resettable fuse, the SMD300F-2 automatically resets after the fault is cleared and power is removed, eliminating the need for replacement. It is commonly used in applications requiring compact overcurrent protection where space is limited.

SMD300F-2 Quick Information

Product Type: PTC Resettable Fuse
Series: SMD
Canonical Name: Littelfuse SMD300F-2 Polymeric PTC Resettable Fuse
Subcategory: Surface Mount PTC Fuses

SMD300F-2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 2
REACH Status: REACH Unaffected

SMD300F-2 Estimated Pricing

Qty Low High
1+ $0.84 $0.84
5+ $0.70 $0.70
10+ $0.64 $0.64
50+ $0.53 $0.53
100+ $0.49 $0.49
250+ $0.44 $0.44
500+ $0.41 $0.41
1,000+ $0.38 $0.38
2,000+ $0.30 $0.30
4,000+ $0.27 $0.27
6,000+ $0.27 $0.27

Estimated market price range - modelled values for guidance only, not live distributor offers.

SMD300F-2 Features

  • Polymeric PTC resettable overcurrent protection.
  • Rated for 6V maximum voltage operation.
  • 3A hold current with 48 mΩ initial resistance.
  • Surface mount in compact 2-SMD package.
  • Operates from -40°C to 85°C temperature range.

SMD300F-2 Applications

  • Overcurrent protection in low-voltage circuits.
  • Ideal for compact surface mount designs.
  • Used in portable electronics and peripherals.
  • Suitable for battery protection applications.

SMD300F-2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum voltage rating of the SMD300F-2?

The maximum voltage rating is 6V.

What is the hold current of this PTC fuse?

The hold current is 3A.

What is the initial resistance of the SMD300F-2?

The initial resistance is 48 mΩ.

What is the time to trip for this device?

The time to trip is 35 seconds.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What package type does the SMD300F-2 use?

It uses a 2-SMD surface mount package.

What are the dimensions of the SMD300F-2?

The dimensions are 7.36mm length, 5.12mm width, and 3.00mm maximum thickness.

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