Key Benefits:
- Recognized by Underwriters Laboratories (UL) for ensured safety
- Enhanced performance over traditional inrush current limiters:
- Lower current density
- Faster reset times
- Wider temperature range without derating
- One-component solution
Key Specifications:
- Withstand high currents from 6 A to 50 A and 250 J to 800 J of input energy
- Hot R from 0.0074 Ω to 0.380 Ω · Resistance at 25 ºC from .50 Ω to 50 Ω
- Maximum capacitance at 680 VAC from 500 µF to 1730 µF
- Available with diameters of 30 mm and 36 mm
Target Applications:
- Protection of pre-charge circuits in lithium ion batteries; variable-frequency drives in sports equipment like treadmills, high-speed computers, and processors; switch mode power supplies for plasma cutters and welders; and audio amplifiers, MRIs, and x-ray machines
Key Specifications:
| Part | UL | R | SSI Max |
Joules Max |
D Max (mm) |
T Nom (mm) |
Get-It-Now Mouser |
Get-It-Now Digikey |
|
|---|---|---|---|---|---|---|---|---|---|
| AS32 0R536 | Y | 0.5 | 30 | 300 | 29 | 8 | 995-AS32-0R536-100 | 570-1103-ND | |
| AS32 0R530 | Y | 0.5 | 30 | 300 | 29 | 5 | 995-AS32-0R530-100 | 570-1118-ND | |
| AS32 1R030 | Y | 1.0 | 30 | 300 | 30 | 8 | 995-AS32-1R030 | 570-1104-ND | |
| AS32 1R036 | Y | 1.0 | 36 | 300 | 30 | 8 | 995-AS32-1R036-100 | 570-1119-ND | |
| AS32 2R025 | Y | 2.0 | 25 | 300 | 30 | 8 | 995-AS32-2R025 | 570-1105-ND | |
| AS32 5R020 | Y | 5.0 | 20 | 300 | 32 | 8 | 995-AS32-5R020 | 570-1106-ND | |
| AS32 10015 | Y | 10.0 | 15 | 250 | 30 | 9 | 995-AS32-10015 | 570-1107-ND | |
| AS32 20010 | 20.0 | 10 | 250 | 29 | 9 | 570-1108-ND | |||
| AS32 50006 | 50.0 | 6 | 250 | 30 | 9 | 570-1109-ND |
The Context: Designed to withstand high steady-state currents and input energy, AS Series inrush current limiting NTC thermistors reduce costs and greatly simplifying designs by providing simple one-component alternatives to using power resistors with timers and relays. Compared to traditional inrush current limiters, the devices offer lower current density, faster reset times, and a wider temperature range without derating. While traditional inrush current limiters handle approximately 167 A per square inch for the duration of the inrush current, AS Series devices are designed to withstand 400 A per square inch. This lower current density, in combination with a uniform temperature gradient throughout the disc, increases reliability by eliminating hot spots from fatigue.
Availability: Samples of the AS Series are available in three to five days. Production quantities are available with lead times of four weeks.
Datasheets: https://www.ametherm.com/inrush-current/as-series-inrush-current-limiters
Download this New Product Announcement as a PDF: AS Series New Product Announcement – July 2013
Request a Sample: Call 800-808-2434 (toll free in the United States) or 775-884-2434 from outside the US and Canada.