72R Series - 72V PolySwitch® Lead-Free Radial Leaded Resettable PPTC

Series: 72R
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The 72R Series is designed to provide overcurrent protection to 72Vdc maximum voltage with a maximum 40A short circuit rating.

Features:
  • RoHS compliant and lead-free
  • 72Vdc Max Voltage w/max 40A Short Circuit rating
  • Resettable feature
  • Ideal for a broad range of general electronics using a low voltage power supply


Applications:
  • Load protection on wide range of low voltage power supplies
  • Computers
  • Computer peripherals
  • General electronics
 
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Access specifications, certifications, check availability and order parts below

Catalog #IHold (A)ITRIP
(A)		Max Volts
(V)		IMAX
(A)		PDMAX
(W)		RMIN
(Ω)		R1max
(Ω)		Max
Time
To
Trip
(A)		Max
Time
to
Trip Time
(Sec)		Operating TemperaturePartner ECAD ModelsStockSamplesCompare
72R020X0.20.472400.411.834.412.2-40° to 85°C72R020XCheckOrder
72R030X0.30.672400.490.882.11.53-40° to 85°C72R030XCheckOrder
72R040X0.40.872400.560.551.2923.8-40° to 85°C72R040XCheckOrder
72R050X0.5172400.770.51.172.54-40° to 85°C72R050XCheckOrder
72R065X0.651.372400.880.310.723.255.3-40° to 85°C72R065XCheckOrder
72R075X0.751.572400.920.250.63.756.3-40° to 85°C72R075XCheckOrder
72R090X0.91.872400.990.20.474.57.2-40° to 85°C72R090XCheckOrder
72R110X1.12.272401.50.150.385.58.2-40° to 85°C72R110XCheckOrder
72R135X1.352.772401.70.120.36.759.6-40° to 85°C72R135XCheckOrder
72R160X1.63.272401.90.090.22811.4-40° to 85°C72R160XCheckOrder
72R185X1.853.772402.10.080.199.2512.6-40° to 85°C72R185XCheckOrder
72R250X2.5572402.50.050.1312.515.6-40° to 85°C72R250XCheckOrder
72R375X3.757.572403.20.030.0818.7524-40° to 85°C72R375XCheckOrder
72R025X
Obsolete: 2022 -11-22		0.250.572400.451.2531.252.5-40° to 85°C72R025X
72R300X
Obsolete: 2024 -01-07		3672402.80.040.11519.8-40° to 85°C72R300X
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
72R020XPR PTC 72V POLYFUSE AMMO RADIAL LEADS .200A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R020XU PTC 72V POLYFUSE RADIAL LEADS .200A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R025XPR PTC 72V POLYFUSE AMMO RADIAL LEADS .250A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R025XU PTC 72V POLYFUSE RADIAL LEADS .250A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R030XPR PTC 72V POLYFUSE AMMO RADIAL LEADS .300A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R030XU PTC 72V POLYFUSE RADIAL LEADS .300A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R040XU PTC 72V POLYFUSE RADIAL LEADS .400A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R040XPR PTC 72V POLYFUSE AMMO RADIAL LEADS .400A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R050XU PTC 72V POLYFUSE RADIAL LEADS .500A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R050XPR PTC 72V POLYFUSE AMMO RADIAL LEADS .500A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R065XPR PTC 72V POLYFUSE AMMO RADIAL LEADS .650A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R065XU PTC 72V POLYFUSE RADIAL LEADS .650A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R075XPR PTC 72V POLYFUSE AMMO RADIAL LEADS .750A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R075XU PTC 72V POLYFUSE RADIAL LEADS .750A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R090XPR PTC 72V POLYFUSE AMMO RADIAL LEADS .900A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R090XU PTC 72V POLYFUSE RADIAL LEADS .900A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R110XMR PTC 72V POLYFUSE AMMO RADIAL LEADS 1.10A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R110XU PTC 72V POLYFUSE RADIAL LEADS 1.10A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R135XF PTC 72V POLYFUSE RADIAL LEADS 1.35A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R135XMR PTC 72V POLYFUSE AMMO RADIAL LEADS 1.35A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R160XF PTC 72V POLYFUSE RADIAL LEADS 1.60A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R160XMR PTC 72V POLYFUSE AMMO RADIAL LEADS 1.60A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R185XMR PTC 72V POLYFUSE AMMO RADIAL LEADS 1.85A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R185XF PTC 72V POLYFUSE RADIAL LEADS 1.85A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R250XF PTC 72V POLYFUSE RADIAL LEADS 2.50A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R250XMR PTC 72V POLYFUSE AMMO RADIAL LEADS 2.50A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R300XMR PTC 72V POLYFUSE AMMO RADIAL LEADS 3A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R300XF PTC 72V POLYFUSE RADIAL LEADS 3A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
72R375XH PTC 72V POLYFUSE RADIAL LEADS 3.75A RoHS No 07/01/2006 PbFree No 07/01/2006 Yes
01/01/2010
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