MF-USHT050KX-2 The Bourns MF-USHT050KX-2 is a polymeric PTC resettable fuse with 500mA hold current, 30V maximum voltage, and 20A maximum current. It comes in a compact 1210 surface mount package and is AEC-Q200 qualified for automotive applications.
Mfr Part #:

MF-USHT050KX-2

Available from 1 distributors
Mfr Name: Bourns
Bourns
The Bourns MF-USHT050KX-2 is a polymeric PTC resettable fuse with 500mA hold current, 30V maximum voltage, and 20A maximum current. It comes in a compact 1210 surface mount package and is AEC-Q200 qualified for automotive applications.
Total Stock: 6,000 pcs
$ Price Range: $0.24 - $0.54

MF-USHT050KX-2 Available from 1 distributor

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Non-Authorised
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6,000 pcs
6000 pcs On Request 1 On Request On Request On Request On Request On Request

MF-USHT050KX-2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Agency Approvals
Automotive Grade
Current
Halogen Free
Length
Max Current
Mounting Type
Operating Temperature
Ratings
Resistance
Resistance - Initial (Min)
Tape & Reel
Termination Style
Thickness (Max)
Time to Trip
Trip Current
Tripped Power Dissipation
Type
Voltage
Width

MF-USHT050KX-2 Description

Short technical summary and product information.

The Bourns MF-USHT050KX-2 is a polymeric PTC resettable fuse from the MF-USHT series, designed for overcurrent protection in space-constrained applications. It offers a hold current of 500 mA and a trip current of 2.5 A, with a maximum voltage rating of 30 V and a maximum current rating of 20 A. The device features an initial minimum resistance of 0.3 Ω and a maximum post-reflow resistance of 1.6 Ω. The time to trip is a maximum of 100 ms at 8.0 A, and typical tripped power dissipation is 1.0 W.

 

The PTC fuse operates over a wide temperature range of -40°C to 125°C, making it suitable for harsh environments. It is housed in a 1210 (3225 Metric) concave surface mount package with dimensions of 3.20 mm x 2.55 mm and a maximum thickness of 0.85 mm. The mounting type is surface mount, and the termination style is SMD concave.

 

The MF-USHT050KX-2 is compliant with AEC-Q200 Rev-D automotive qualification and RoHS3, and is halogen free. It holds agency approvals from cUL and TÜV. This component is ideal for overcurrent protection in automotive electronics, power management circuits, and battery protection applications.

MF-USHT050KX-2 Quick Information

Product Type: PTC Resettable Fuse
Series: MF-USHT
Canonical Name: Bourns MF-USHT050KX PTC Resettable Fuse
Subcategory: Polymeric PTC Resettable Fuse

MF-USHT050KX-2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead Free

MF-USHT050KX-2 Estimated Pricing

Qty Low High
1+ $0.54 $0.54
10+ $0.50 $0.50
50+ $0.41 $0.41
100+ $0.37 $0.37
250+ $0.34 $0.34
500+ $0.32 $0.32
1,000+ $0.29 $0.29
3,000+ $0.26 $0.26
6,000+ $0.24 $0.24

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

MF-USHT050KX-2 Features

  • Polymeric PTC resettable overcurrent protection device.
  • 500 mA hold current with 2.5 A trip current.
  • Rated for 30 V DC maximum voltage.
  • Surface mount 1210 (3225 metric) concave package.
  • AEC-Q200 qualified for automotive applications.

MF-USHT050KX-2 Applications

  • Overcurrent protection in automotive electronics.
  • Protection for power supplies and battery circuits.
  • Used in high-temperature environments up to 125°C.
  • Suitable for compact circuit designs.

MF-USHT050KX-2 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the hold current of the MF-USHT050KX-2?

500 mA.

What is the maximum voltage rating?

30 V.

What is the maximum breaking current?

20 A.

What is the response time (time to trip)?

Maximum 100 ms at 8.0 A.

What is the package type?

1210 (3225 Metric) concave surface mount.

What is the operating temperature range?

-40°C to 125°C.

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