PFRX.375 Allicdata Electronics

PFRX.375 Circuit Protection

Allicdata Part #:

PFRX.375-ND

Manufacturer Part#:

PFRX.375

Price: $ 0.00
Product Category:

Circuit Protection

Manufacturer: Schurter Inc.
Short Description: PTC RESET FUSE 60V 3.75A RADIAL
More Detail: Polymeric PTC Resettable Fuse 60V 3.75A Ih Through...
DataSheet: PFRX.375 datasheetPFRX.375 Datasheet/PDF
Quantity: 1000
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Resistance - Initial (Ri) (Min): 30 mOhms
Approvals: CSA, TUV, UR
Lead Spacing: 0.402" (10.20mm)
Thickness (Max): --
Height - Seated (Max): 1.319" (33.50mm)
Size / Dimension: 1.118" Dia x 0.122" W (28.40mm x 3.10mm)
Package / Case: Radial, Disc
Mounting Type: Through Hole
Ratings: --
Operating Temperature: -40°C ~ 85°C
Resistance - Post Trip (R1) (Max): 80 mOhms
Series: PFRX
Time to Trip: 24s
Current - Trip (It): 7.5A
Current - Hold (Ih) (Max): 3.75A
Current - Max: 40A
Voltage - Max: 60V
Type: Polymeric
Part Status: Obsolete
Lead Free Status / RoHS Status: --
Packaging: Bulk 
Description

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PTC resettable fuses are a type of circuit protection device that prevents potential damage to electrical circuits from overload or short circuit conditions. The PTC fuse provides both overload and short circuit protection – a significant advantage over traditional fuses. The PTC fuse is composed of a PTC element and a housing. The PTC element is composed of polymer and metal particles embedded in a matrix that is typically thermally activated. Its application field and working principle varies with different types of PTC fuses and is based on the design of the PTC element in the housing.

For the PFRX.375, the application field and working principle is quite simple. The fuse is designed to provide overcurrent protection in DC circuits and is suitable for use with AC/DC applications from up to 375V. It has a fast response time and offers excellent protection from thermal runaway and short-circuit conditions. In normal operating conditions, the PFRX.375 will remain in the “on” state and can handle up to 375V with no damage. When it senses an overcurrent, it will immediately trip to the “off” state and disconnect the circuit. It can then be reset by cycling the circuit breaker to the “on” position.

The working principle of the PFRX.375 is based on a PTC curve, which is a thermally-activated resistance characteristic that changes with temperature. This polymer-based resistance element increases in resistance when heated, resulting in a decrease in current flow. This property allows the PFRX.375 to sense an overcurrent condition and immediately trip to the”off” state. The PFRX.375 uses a PTC element with a current rating of 1.6A, at 30°C in an ambient temperature range of between 10°C and 55°C.

The current rating of the PFRX.375 can be increased or decreased depending on the application. A high current rating will provide excellent protection against overcurrents, while a lower current rating will provide better protection against short-circuit conditions. The fuse can also be adjusted to provide a different response time depending on the application.

The PFRX.375 is easy to install and will provide protection against both overload or short-circuit conditions in DC circuits up to 375V. It is an economical and reliable solution for circuit protection and is suitable for a wide variety of applications.

The specific data is subject to PDF, and the above content is for reference

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