Varistor Metal Oxide Varistor Products Page 192 Varistor Metal-Oxide Varistor Products

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > DHB34 Series DHB34 Varistor Series Description The DHB34 Series of transient surge suppressors is comprised of two industrial high-energy Metal-Oxide Varistors (MOVs) discs placed in parallel as a single device. They are designed to provide surge suppression in the AC mains outdoor and service entrance environment (distribution panels) of buildings. DHB34 applications also include industrial heavy motors, controls, and power supplies such as used in the oil-drilling, mining, and transportation fields, including HVAC and motor/generator applications. The DHB34 Series provides rigid terminals for through- hole solder mounting on printed circuit boards, thereby eliminating the need for screw mounting. Features Lead-Free, Halogen- Free and RoHS Compliant Wide operating voltage range V M(AC)RMS 110V to 750V High-energy absorption capability W TM = 220J to 1050J High peak pulse current (Each of two discs placed in parallel) capability I TM = 40,000A Rigid terminals for secure through-hole solder mounting No derating up to 85C ambient Dual Disc Device - two 34mm varistor discs in parallel in a single package. Agency Approvals Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart Agency Agency Approval Agency File Number UL1449 E320116 22.2-1 91788 Continuous DHB34 Series Units Steady State Applied Voltage: AC Voltage Range (V M(AC)RMS ) 110 to 750 V DC Voltage Range (V M(DC) ) 148 to 970 V Transients: Peak Pulse Current (I TM ) For 8/20 s Current Wave (See Figure 2) 40000 A Single Pulse Energy Range For 2ms Current Wave (W TM ) 220 to 1050 J Operating Ambient Temperature Range (T A ) -55 to + 85 C Storage Temperature Range (T STG ) -55 to + 125 C Temperature Coefficient (a V ) of Clamping Voltage (V C ) at Specified Test Current <0.01 %/C Hi-Pot Encapsulation (COATING Isolation Voltage Capability) 2500 V COATING Insulation Resistance 1000 M CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. RoHS Additional Information Datasheet Samples Resources

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