SMD185F-2 Littelfuse SMD185F-2 is a polymeric PTC resettable fuse rated for 33V maximum voltage and 1.85A hold current, with a 5-second trip time. It comes in a surface-mount 2-SMD package.
Mfr Part #:

SMD185F-2

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse SMD185F-2 is a polymeric PTC resettable fuse rated for 33V maximum voltage and 1.85A hold current, with a 5-second trip time. It comes in a surface-mount 2-SMD package.
Total Stock: 204 pcs
$ Price Range: $0.27 - $0.85

SMD185F-2 Available from 1 distributor

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204 pcs
204 pcs On Request 1 On Request On Request On Request On Request On Request

SMD185F-2 Specifications Quick View

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

SMD185F-2 Description

Short technical summary and product information.

The Littelfuse SMD185F-2 is a polymeric positive temperature coefficient (PTC) resettable fuse designed for overcurrent protection in electronic circuits. It is rated for a maximum voltage of 33V and a hold current of 1.85A, with an initial minimum resistance of 165 mOhm. The device trips within 5 seconds under fault conditions, providing reliable circuit protection.

 

This PTC fuse is housed in a compact 2-SMD surface-mount package measuring 8.70mm x 6.36mm with a maximum thickness of 3.00mm. It is suitable for automated assembly and is designed for operating temperatures ranging from -40°C to 85°C.

 

Typical applications include overcurrent protection in power supplies, battery packs, and consumer electronics where resettable protection is preferred over one-time fuses. The polymeric construction allows the device to reset after the fault is cleared and power is removed.

SMD185F-2 Quick Information

Product Type: PTC Resettable Fuse
Series: SMD
Canonical Name: Littelfuse SMD185F-2 Polymeric PTC Resettable Fuse
Subcategory: Surface Mount PTC

SMD185F-2 Compliance

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

SMD185F-2 Estimated Pricing

Qty Low High
1+ $0.85 $0.85
5+ $0.71 $0.71
10+ $0.65 $0.65
50+ $0.54 $0.54
100+ $0.50 $0.50
250+ $0.45 $0.45
500+ $0.41 $0.41
1,500+ $0.31 $0.31
3,000+ $0.29 $0.29
4,500+ $0.27 $0.27

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

SMD185F-2 Features

  • Polymeric PTC resettable fuse design.
  • Rated for 33V maximum voltage.
  • 1.85A hold current with 5s trip time.
  • Surface mount 2-SMD package.
  • Operating temperature -40°C to 85°C.

SMD185F-2 Applications

  • Overcurrent protection in power supplies.
  • Battery pack protection circuits.
  • Consumer electronics overcurrent protection.

SMD185F-2 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum voltage rating of the SMD185F-2?

The maximum voltage rating is 33V.

What is the hold current of the SMD185F-2?

The hold current (Ih) is 1.85A.

What is the trip time of the SMD185F-2?

The time to trip is 5 seconds.

What is the package type of the SMD185F-2?

The package is 2-SMD, surface mount.

What is the operating temperature range?

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

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