Varistor Products High Energy Industrial DHB34 Varistor Series NEW ® The DHB34 Series of transient surge suppressors are industrial highenergy Metal-Oxide Varistors (MOVs). 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. 2 VARISTOR PRODUCTS The DHB34 Series provides rigid terminals for through-hole solder mounting on printed circuit boards, thereby eliminating the need for screw mounting. See Ratings and Specifications table for part numbers. Features • Wide Operating Voltage Range VM(AC)RMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110V to 750V • High Energy Absorption Capability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .WTM = 220J to 1050J • High Peak Pulse Current Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ITM = 40,000A* • Rigid Terminals for Secure Through-Hole Solder Mounting • No Derating Up to 85oC Ambient AGENCY APPROVALS: Recognized under the components program of Underwriters Laboratories. Certified by CSA. AGENCY FILE NUMBERS: UL 1449, E75961, UL1414, E56529, CSA LR91788. * NOTE: Ratings are for each individual varistor element in a dual assembly. w w w. l i t t e l f u s e . c o m ® 109 Varistor Products High Energy Industrial DHB34 Varistor Series Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart Continuous: DHB34 SERIES Steady State Applied Voltage: AC Voltage Range (VM(AC)RMS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 to 750 DC Voltage Range (VM(DC)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 to 970 Transient: Peak Pulse Current (ITM) For 8/20µs Current Wave (See Figure 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40,000 Single Pulse Energy Range For 2ms Current Square Wave (WTM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 to 1050 Operating Ambient Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 85 Storage Temperature Range (TSTG). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 125 Temperature Coefficient (αV) of Clamping Voltage (VC) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01 UNITS V V A J C C %/OC O O 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. Device Ratings and Specifications MAXIMUM RATINGS (85 oC) CONTINUOUS MODEL NUMBER SPECIFICATIONS (25 oC) TRANSIENT PEAK CURRENT (8/20µs) VRMS VDC ENERGY (2ms) SIZE VM(AC) VM(DC) WTM ITM (mm) (V) (V) (V) (A) VARISTOR VOLTAGE AT 1mA DC TEST CURRENT MAXIMUM CLAMPING VOLTAGE (VC) AT 200A (8/20µs) TYPICAL CAPACITANCE MIN VN(DC) MAX VC f = 1MHz (V) (pF) (V) (V) (V) 156 173 190 288 11,600 184 200 228 345 10,000 V111DHB34 34 110 148 220 40,000 1 V131DHB34 34 130 175 270 40,000 2 198 220 248 375 9,000 212 240 268 405 8,000 V141DHB34 34 140 188 291 40,000 3 V151DHB34 34 150 200 300 40,000 4 V181DHB34 34 180 240 330 40,000 254 282 310 468 6,800 V201DHB34 34 200 265 350 40,000 283 314 345 533 6,350 V251DHB34 34 250 330 370 40,000 354 390 429 650 5,000 V271DHB34 34 275 369 400 40,000 389 430 473 730 4,500 V301DHB34 34 300 410 430 40,000 433 478 526 780 4,100 V321DHB34 34 320 420 460 40,000 462 510 561 830 3,800 V331DHB34 34 330 435 475 40,000 467 519 570 843 3,750 V351DHB34 34 350 460 500 40,000 495 550 604 894 3,600 NOTE: Ratings are for each individual varistor element in dual assembly. 1. Average power dissipation of transients not to exceed 2.0W per varistor element (2 varistors per device). 2. 40kA capability depends on applications rated up to 115VRMS . 30kA applies if > 115 VRMS . 3. 40kA capability depends on applications rated up to 123V RMS . 30kA applies if > 123 VRMS . 4. 40kA capability depends on applications rated up to 132V RMS . 30kA applies if > 132 VRMS . 5. 40kA capability depends on applications rated up to 97VRMS. 30kA applies if > 97 VRMS. 110 w w w. l i t t e l f u s e . c o m Varistor Products High Energy Industrial DHB34 Varistor Series Device Ratings and Specifications CONTINUOUS SPECIFICATIONS (25 oC) TRANSIENT VRMS VDC ENERGY (2ms) PEAK CURRENT (8/20µs) VARISTOR VOLTAGE AT 1mA DC TEST CURRENT MAXIMUM CLAMPING VOLTAGE (VC) AT 200A (8/20µs) TYPICAL CAPACITANCE f = 1MHz SIZE VM(AC) VM(DC) WTM ITM MIN VN(DC) MAX MODEL NUMBER VC (mm) (V) (V) (V) (A) (V) (V) (V) (V) V391DHB34 34 385 510 550 40,000 545 604 663 1,000 3,500 V421DHB34 34 420 560 600 40,000 610 680 748 1,130 3,000 V441DHB34 34 440 585 630 40,000 622 691 759 1,147 2,900 V481DHB34 34 480 640 650 40,000 670 750 825 1,240 2,700 V511DHB34 34 510 675 700 40,000 735 820 910 1,350 2,500 V551DHB34 34 550 710 755 40,000 778 864 949 1,404 2,390 V571DHB34 34 575 730 770 40,000 805 910 1000 1,480 2,200 V661DHB34 34 660 850 900 40,000 940 1050 1160 1,720 2,000 V681DHB34 34 680 875 925 40,000 962 1068 1173 1,777 1,900 V751DHB34 34 750 970 1050 40,000 1080 1200 1320 2,000 1,800 (pF) NOTE: Ratings are for each individual varistor element in dual assembly. 1. Average power dissipation of transients not to exceed 2.0W per varistor element (2 varistors per device). 2. 40kA capability depends on applications rated up to 115VRMS . 30kA applies if > 115 VRMS . 3. 40kA capability depends on applications rated up to 123V RMS . 30kA applies if > 123 VRMS . 4. 40kA capability depends on applications rated up to 132V RMS . 30kA applies if > 132 VRMS . 5. 40kA capability depends on applications rated up to 97VRMS. 30kA applies if > 97 VRMS. w w w. l i t t e l f u s e . c o m 111 2 VARISTOR PRODUCTS MAXIMUM RATINGS (85 oC) Varistor Products High Energy Industrial DHB34 Varistor Series Power Dissipation Ratings PERCENT OF PEAK VALUE Should transients occur in rapid succession, the average power dissipation result is simply the energy (watt-seconds) per pulse times the number of pulses per second. The power so developed must be within the specifications shown on the Device Ratings and Specifications table for the specific device. The operating values must be derated as shown in Figure 1. 100 90 50 10 O1 T TIME T1 T2 O1 = Virtual Origin of Wave T = Time From 10% to 90% of Peak T1 = Virtual Front time = 1.25 • t T2 = Virtual Time to Half Value (Impulse Duration) Example: For an 8/20µs Current Waveform: 8µs = T1 = Virtual Front Time 20µs = T2 = Virtual Time to Half Value FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM Transient V-I Characteristics Curves 10000 TA = -55 C to 85C Maximum Clamping Voltage DHB34 Series 110 to 750V AC Rating V751 V661 Voltage Volts V511 V551 V681 V571 1000 V481 V141 V131 V111 V441 V151 Current - AMPS 100 0.001 0.01 0.1 1 10 100 1000 10000 V421 V391 V351 V331 V321 V301 V271 V251 V201 V181 FIGURE 3. CLAMPING VOLTAGE FOR DHB34 SERIES 112 w w w. l i t t e l f u s e . c o m 100000 Varistor Products High Energy Industrial DHB34 Varistor Series Mechanical Dimensions Pulse Rating Curves 50,000 DISC SIZE 34mm V131DHB34 - V751DHB34 1 SURGE CURRENT (A) 10,000 2 10 5,000 102 2,000 103 1,000 105 T max 37.5 max 2 106 104 500 VARISTOR PRODUCTS 20,000 56 max 200 100 12.7 typ 50 20 10 3.7 typ INDEFINITE Dia 3.81 +/- 0.08 20 100 1,000 S1 10,000 25.4 +/- 0.5 IMPULSE DURATION ( µs) S2 0.51 typ FIGURE 4. SURGE CURRENT RATING CURVES FOR V131DHB34 - V751DHB34 7.06 +/- 0.2 NOTE: If pulse ratings are exceeded, a shift of VN(DC) (at specified current) of more than ±10% could result. This type of shift, which normally results in a decrease of VN(DC), may result in the device not meeting the original published specifications, but it does not prevent the device from continuing to function, and to provide ample protection. Terminals Configuration: Terminals A & B are connected to one varistor element. Terminals B & C connected to second varistor element. Terminal materials: Tin Plated over copper. TABLE OF DIMENSIONS THICKNESS AND TERMINAL OFFSETS TYPE Ordering Information V 13 1DHB 34 VARISTOR DESIGNATOR MAX AC RMS WORKING VOLTAGE (FIRST SIGNIFICANT DIGITS) V M(AC) DISC SIZE (mm) SERIES DESIGNATOR VM(AC) VOLTAGE DECADE MULTIPLIER T MAX S1 +/- 1.15 mm S2 +/- 2.30mm V111DHB34 7.6 2.65 5.50 V131DHB34 7.8 2.85 5.70 V141DHB34 8.2 3.00 6.00 V151DHB34 8.8 3.15 6.30 V181DHB34 9.0 3.25 6.50 V201DHB34 9.2 3.35 6.70 V251DHB34 7.8 3.00 6.00 V271DHB34 8.7 3.25 6.50 V301DHB34 8.9 3.50 7.00 V321DHB34 9.3 3.66 7.24 V331DHB34 9.5 3.70 7.40 V351DHB34 10.5 4.10 8.20 V391DHB34 11.2 4.45 8.90 V421DHB34 11.3 4.50 9.00 V441DHB34 11.5 4.55 9.10 V481DHB34 12.2 4.80 9.60 V511DHB34 13.4 5.25 10.50 V551DHB34 14.6 5.70 11.40 V571DHB34 14.8 5.80 11.60 V661DHB34 17.20 6.65 13.30 V681DHB34 17.5 7.00 14.00 V751DHB34 18.20 7.35 14.70 w w w. l i t t e l f u s e . c o m 113