SURGE-GARD ICL Inrush Current Limiter Circuit Protection Devices SG130 NTC Thermistors 2.5 Ohms ±20% 8A MF73T-1 2.5/8

SURGE-GARD ICL Inrush Current Limiter Circuit Protection Devices NTC Thermistors 2.5 Ohms ±20% 8A MF73T-1 2.5/8

Description

Negative Temperature Coefficient (NTC) thermistors are thermally sensitivesemiconductor resistors which exhibit a decrease in resistance as absolutetemperature increases. Change in the resistance of the NTC thermistor can bebrought about either by a change in the ambient temperature or internally by selfheating resulting from current flowing through the device. Most of the practicalapplications of NTC thermistors are based on these material characteristics.

Specification

Features

• Lowers rectifier cost by reducing required peak forward surge current rating

• Reduces Noise

• Reduces Fuse Failures

• High Current Capability

• Equivalent to SG130

Selection Procedure

• Calculate IMAX

• Calculate R@25°C

• Select SURGEGARD specified to handle the input energy &maximum current with a R@25°C value capable of limiting the inrush current

• Evaluate Joules Rating

• Calculatethe SURGEGARD™resistance at IOPusing the 'M'curve in Figure B

• Check Figure C ifde-rating isrequired for high ambient operating temperature

Installation Options

• Thru-hole Leads

• Insulated/Uninsulated

• Standoffs• Preformed Leads

• See Figure D

Actual Product Photo

2.5 Ohms NTC Thermistors

SURGE-GARD ICL NTC Thermistors

8A NTC Thermistors

SURGE-GARD ICL Inrush Current Limiter Circuit Protection Devices SG130 NTC Thermistors 2.5 Ohms ±20% 8A MF73T-1 2.5/8 Images