72R185XF Littelfuse Inc, 72R185XF Datasheet - Page 3

• Manufacturer Part Number: 72R185XF
• Description: PTC RESETTABLE 72V 1.85A RADIAL
• Manufacturer: Littelfuse Inc
• Series: POLYFUSE® 72Rr

Specifications of 72R185XF

• R Min/max: 0.080 ~ 0.190 Ohm
• Voltage - Max: 72V
• Time To Trip: 12.6s
• Current - Hold (ih) (max): 1.85A
• Current - Trip (it): 3.7A
• Current - Max: 40A
• Package / Case: Radial
• Holding Current: 1.85A
• Tripping Current: 3.7A
• Initial Resistance Max: 0.19ohm
• Operating Voltage: 72VDC
• Ptc Fuse Case: Radial Lead
• Initial Resistance Min: 0.08ohm
• External Depth: 3.1mm
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 72R185X; F3203

© 2010 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/72R.html for current information.
Soldering Parameters - Wave Soldering
Pre-Heating Zone
Soldering Zone
Cooling Zone
Physical Specifications
Lead Material
Soldering
Characteristics
Insulating Material
Lead Solderability
0.20-0.40A: Tin-plated Copper clad steel
0.50-3.75A: Tin-plated Copper
Solderability per MIL–STD–202, Method
208E
Cured, flame retardant epoxy polymer
meets UL 94V-0 requirements.
Marked with ‘LF’, voltage, current rating,
and date code.
Refer to the condition recommended by
the flux manufacturer.
Max. ramping rate should not exceed
4°C/Sec.
Max. solder temperature should not
exceed 260°C
Cooling by natural convection in air.
Radial Leaded > 72R Series
POLYFUSE
Revised: July 12, 2010
®
93
Resettable PTCs
Operating/Storage
Temperature
Maximum Device Surface
Temperature in Tripped State
Passive Aging
Humidity Aging
Thermal Shock
Solvent Resistance
Moistrue Sesitivity Level
Environmental Specifications
260
220
160
190
0
Preheating
60 min.
Soldering
5 max.
Time(s)
-40°C to +85°C
125°C
+85°C, 1000 hours
-/+5% typical resistance change
+85°C, 85% R.H. 1000 hours
-/+5% typical resistance change
+85°C to -40°C 10 times
-/+5% typical resistance change
MIL–STD–202, Method 215F
Level 1, J–STD–020C
Cooling
72R Series