Ametherm SURGE-GARD™ NTC Inrush Current Limiters
Ametherm SURGE-GARD™ NTC Inrush Current Limiting devices are manufactured using specially formulated metal oxide ceramic materials and certified to UL 1434 for single- and three-phase input voltages to 480VAC. SURGE-GARD devices are capable of handling high steady-state currents to 36A and input energy to 250J. Available with various options in multiple leaded package styles, the components offer resistance at +25°C (R25) from 0.4Ω to 220Ω with tolerances down to ±10%, maximum operating voltage to 265VRMS, and beta from 3000°K to 3965°K.
These RoHS-2 and REACH-compliant Ametherm inrush current limiters are constructed of specially formulated metal oxide ceramic materials and are optimized for a wide variety of applications that require inrush current limiting to reduce noise and circuit failure - including power supplies, motor drives, HVAC motors, transformers, and amplifiers. In these applications, the devices lower costs and increase reliability by eliminating the need to use resistors, timers, and relays.
Features
- Offers resistance at +25°C from 0.4Ω to 120Ω
- Features tolerances down to 15%
- Offers diameters from 10mm to 32mm
- 265VRMS maximum operating voltage
- 3000°K to 3965°K beta
Applications
- Switching power supplies
- AC motors
- Motor drives
- Audio amplifiers
- Battery chargers
Published: 2014-04-07
| Updated: 2022-03-11