PFRX.185 PTC resettable fuse, 60V DC, 1.85A hold current, 40A max current, radial through-hole package.
Mfr Part #:

PFRX.185

Available from 1 distributors
Mfr Name: Schurter Inc.
Schurter Inc.
PTC resettable fuse, 60V DC, 1.85A hold current, 40A max current, radial through-hole package.
Total Stock: 377 pcs

PFRX.185 Available from 1 distributor

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PFRX.185 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Height
Lead Spacing
Lead Style
Mounting Type
Operating Temperature
Resistance
Storage Temperature
Time to Trip
Type
Voltage
Weight

PFRX.185 Description

Short technical summary and product information.

The PFRX.185 is a PTC resettable fuse from Schurter Inc., part of the PFRX series. It is rated for a maximum voltage of 60 VDC and a maximum current of 40 A. The hold current is 1.85 A at 23°C, with a trip current of 3.7 A. The device has a maximum time to trip of 12.6 seconds at 9.25 A. Initial resistance ranges from 0.08 Ω to 0.12 Ω at 23°C, with a maximum post-trip resistance of 0.19 Ω after one hour. Tripped power dissipation is 2.10 W at 23°C.

 

The PFRX.185 is housed in a radial disc package with through-hole mounting. Lead spacing is 5.10 mm, lead diameter is 0.81 mm, and the body diameter is 17.80 mm maximum. The device operates over a temperature range of -40°C to 85°C and is UL 1434 approved (File E172175). The terminals are tin-plated copper, and the flammability rating is UL 94V-0. This product is on phase-out and not recommended for new designs; Schurter recommends the PFRY series as a substitute.

PFRX.185 Quick Information

Product Type: PTC Resettable Fuse
Series: PFRX
Canonical Name: PTC Resettable Fuse, 60V, 1.85A Hold, Radial
Subcategory: PTC Resettable Fuse

PFRX.185 Compliance

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

PFRX.185 Features

  • 1.85A hold current at 23°C.
  • 60V DC maximum voltage rating.
  • 40A maximum current capability.
  • Radial through-hole package.
  • UL 1434 approved (File E172175).

PFRX.185 Applications

  • Security and fire alarm systems.
  • Loudspeaker protection circuits.
  • Power transformer overcurrent protection.
  • General low-voltage DC circuit protection.

PFRX.185 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the hold current of the PFRX.185?

The hold current is 1.85 A at 23°C.

What is the maximum voltage rating?

The maximum voltage is 60 VDC.

What is the trip current?

The trip current is 3.7 A at 23°C.

What is the operating temperature range?

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

What package type is the PFRX.185?

It is a radial disc package with through-hole mounting.

What is the maximum time to trip?

The maximum time to trip is 12.6 seconds at 9.25 A.

Is the PFRX.185 UL approved?

Yes, it is UL 1434 approved, File E172175.

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