Surge-Gard™ InRush Current Limiting NTC Thermistors from API Technologies Reduce Circuit Failures

Surge-Gard™ NTC Thermistors | API
Technologies Corp.

LONG BEACH, CA & ORLANDO, FL (APEC: Booth #907)  — March 18, 2013 — API Technologies Corp. (NASDAQ:ATNY) (“API” or the “Company”), a trusted provider of RF/microwave, microelectronics, and security solutions for critical and high-reliability applications, announced today their latest development in NTC thermistors, Surge-Gard™ inrush current limiting devices. This NTC thermistor is currently being showcased at Booth #907 at the 2013 Annual Applied Power Electronics Conference & Expo (APEC), which takes place in Long Beach, CA. APEC runs from March 17-21. 

Designed to limit the inrush current that occurs when power is applied to a system, Surge-Gard NTC thermistors help reduce circuit failures and lower rectifier costs by reducing required peak forward surge current ratings. Featuring steady state current ratings ranging from 1 to 36 amps and resistance values from 0.5Ω to 220Ω, the Surge-Gard is manufactured using specially formulated metal oxide ceramic materials that allow the thermistors to suppress high inrush current surges. 

“Surge-Gard inrush current limiting NTC thermistors are ideal for switching power supplies where the low impedance of the charging capacitor exposes the diode bridge rectifier to an excessively high current surge at turn-on,” said Larry Howanitz, Vice President, EIS & Sensors, API Technologies. “They offer maximum current protection when the power supply is turned on, allowing the design engineer to select lower peak current rated diode bridge rectifiers for use in the switching power supply.”

API offers fast prototyping of custom designs that utilize the new Surge-Gard, as well as a wide variety of lead gauges and configuration. API’s in-house design capabilities, diagnostic testing, and world-class manufacturing offers application-specific products that lower costs and reduce time to market. 

To schedule an appointment to meet with one of our product/solution specialists, please contact, or visit

API Technologies' Sensors line is the leading manufacturer of precision position sensing, temperature sensing, and inertial measurement products. The Company offers a wide line of custom and off-the-shelf products and is a preferred supplier to many of the world’s leading OEMs. For additional information, please visit, or contact API's sales team at or by calling 855-294-3800. 

About API Technologies Corp.
API Technologies designs, develops and manufactures electronic systems, subsystems, RF and secure solutions for technically demanding defense, aerospace and commercial applications. API Technologies' customers include many leading Fortune 500 companies. API Technologies trades on the NASDAQ under the symbol ATNY. For further information, please visit the Company website at 



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