Over-Current Protectors

Features

  • Fast Switching
  • No Electrical Noise
  • Virtually Unlimited Life
  • Self Resetting
  • No Contacts
  • Automatic Operation
  • Efficient

Description

Positive Temperature Coefficient thermistors are used in a wide variety of applications to protect sensitive components against Over-Current conditions. The PTC is unique in its ability to limit excess current during fault conditions, and then automatically reset to a normal operating mode when the fault is removed. Select a part from our Standard Over-Current Protectors or contact Spectrum Sensors & Controls engineering to design a PTC to meet your specific application requirements.

 CustomizeThis Protector! Over-Current Protectors PTC Thermistor Over-Current
Protectors Datasheet (169K) Create a Custom Over-Current
Protectors Solution
Over-Current Protector Product Information
Part Number Vmax R25 Ins Ims Dmax Wire Diameter Customize
Solution
Maximum
Voltage		 Resistance at 25°C
(±20%)		 Maximum
No Switch
Current		 Minimum
Must Switch Current		 Maximum Diameter
  (volts) Ω (Amps) (Amps) (in.) (in.) AWG#  
P6004A120X080F 15 0.8 0.89 1.58 .650 .025 22 Customize and configure your PTC Over-Current Protector Solution
P5504A120X100F 15 1.0 0.77 1.37 .600 .025 22 Customize and configure your PTC Over-Current Protector Solution
P4004A120X200F 15 2.0 0.46 0.82 .450 .020 24 Customize and configure your PTC Over-Current Protector Solution
P6006C120X500F 50 5 0.36 0.63 .650 .025 22 Customize and configure your PTC Over-Current Protector Solution
P4006C120X101F 50 10 0.21 0.37 .450 .025 22 Customize and configure your PTC Over-Current Protector Solution
P3006C120X201F 50 20 0.13 0.23 .350 .020 24 Customize and configure your PTC Over-Current Protector Solution
P6010D120X700F 132 7 0.31 0.55 .650 .025 22 Customize and configure your PTC Over-Current Protector Solution
P5510D120X101F 132 10 0.25 0.45 .600 .025 22 Customize and configure your PTC Over-Current Protector Solution
P3510D120X251F 132 25 0.13 0.23 .400 .025 22 Customize and configure your PTC Over-Current Protector Solution
P2510D120X501F 132 50 0.08 0.15 .300 .020 24 Customize and configure your PTC Over-Current Protector Solution
P2010D120X102F 132 100 0.05 0.10 .250 .020 24 Customize and configure your PTC Over-Current Protector Solution
P4015E120X251F 265 25 0.14 0.25 .450 0.25 22 Customize and configure your PTC Over-Current Protector Solution
P3015E120X501F 265 50 0.09 0.16 .350 0.20 24 Customize and configure your PTC Over-Current Protector Solution
P2015E120X102F 265 100 0.06 0.10 .250 0.20 24 Customize and configure your PTC Over-Current Protector Solution
P3520F120X501F 400 50 0.10 0.18 .400 0.25 22 Customize and configure your PTC Over-Current Protector Solution
P2520F120X102F 400 100 0.06 0.11 .300 0.20 24 Customize and configure your PTC Over-Current Protector Solution
Notes:
  1. Maximum Voltage listed as DC or 60 Hz. AC.
  2. Maximum No Switch Current (Ins) is the maximum current that the PTC can pass without switching into its high resistance state.
  3. Minimum Must Switch Current (Ims) is the minimum current that is necessary to switch the PTC into its high resistance state.
  4. I ns is calculated at the maximum ambient temperature, while Ims is determined at the minimum ambient temperature. For Spectrum Sensors & Controls standard products, Tamin is 0°C and Tamax is 50°C.