Bourns® GMOV™ HYBRID OVERVOLTAGE PROTECTION COMPONENT
GMOV™ Hybrid Overvoltage Protection Component Introduction INTRODUCTION BOURNS® GMOV™ COMPONENT DESIGN Metal Oxide Varistors (MOVs) are popular bipolar ceramic components typically used for overvoltage protection on AC and DC power lines. MOVs operate as non-linear resistors exhibiting a high resistance in their off-state. An MOV operates when the voltage applied to the MOV exceeds its maximum operating voltage (MCOV). As the voltage increases across the MOV, its resistance decreases quickly.
BOURNS® GMOV™ COMPONENT vs. STANDARD MOV Technology Clamping Voltage Leakage Current Aging 30 % Voltage Swell Response 130 V MOV 275 V MOV 130 V MOV + TF GDT + MOV 340 710 340 ~360 Poor Good Poor Excellent Poor Good Poor Excellent Possible Fire Increased Leakage Possible Fire Excellent The table above compares several different protection options available for a hypothetical 120 Vrms application.
GMOV™ Hybrid Overvoltage Protector Overview WHY A GMOV™ COMPONENT SOLUTION IS SUPERIOR FEATURES By combining two technologies, the Bourns® GMOV™ component effectively elminates leakage and most damage due to watt loss heating, resulting in a protection solution with zero standby energy consumption. The effect of no leakage significantly increases the MTBF (Mean Time Between Failures) for the MOV.
KEY CHARACTERISTICS Size MCOV Ratings Leakage at MCOV Max. Capacitance Imax 8/20 µs Ring Wave 200 A 14 mm version 45 - 320 Vrms <0.1 µA 4 pF 6 kA ±250 operations 20 mm version 45 - 320 Vrms <0.
14 mm GMOV™ Hybrid Overvoltage Protector Product Information FEATURES GMOV 14D131K 1901 APPLICATIONS AC Line Protection: Hybrid design • White goods Low leakage • Power line communications Bidirectional protection • Smoke alarm systems UL 1449 Listed, Type 5 • High value consumer goods Footprint compatible with • UL1449 SPD standard 14 mm MOV • RoHS compliant** DC Line Protection: • Solar inverters • Power supplies • Distribution systems • • • • • ELECTRICAL CHARACTERISTICS @ 25 ˚C Operating Bourns P
20 mm GMOV™ Hybrid Overvoltage Protector Product Information FEATURES GMOV 20D131K 1901 APPLICATIONS AC Line Protection: Hybrid design • White goods Low leakage • Power line communications Bidirectional protection • Smoke alarm systems Low capacitance • High value consumer goods UL 1449 Listed, Type 5 • UL1449 SPD Footprint compatible with standard 20 mm MOV DC Line Protection: • RoHS compliant** • Solar inverters • Power supplies • Distribution systems • • • • • • ELECTRICAL CHARACTERISTICS @ 25 ˚C
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