| Photo | Mfr. Part # | Availability | Quantity | Datasheet | Package / Case | Series | Packaging | Product Status | Maximum AC Volts | Maximum DC Volts | Varistor Voltage (Min) | Varistor Voltage (Typ) | Varistor Voltage (Max) | Current - Surge | Energy | Number of Circuits | Capacitance @ Frequency | Operating Temperature | Features | Grade | Qualification | Mounting Type | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|   | V251DHB34VARISTOR 390V 40KA SQUARE 34MM Littelfuse Inc. | 3,909 |  |   Datasheet | Square 34mm, Tabs | DHB34 | Bulk | Active | 250 V | 330 V | 351 V | 390 V | 429 V | 40 kA | 370J | 1 | 5000 pF @ 1 MHz | -55°C ~ 85°C (TA) | - | - | - | Through Hole | 
|   | V301DHB34VARISTOR 470V 40KA SQUARE 34MM Littelfuse Inc. | 7,418 |  |   Datasheet | Square 34mm, Tabs | DHB34 | Bulk | Active | 300 V | 410 V | 423 V | 470 V | 517 V | 40 kA | 430J | 1 | 4100 pF @ 1 MHz | -55°C ~ 85°C (TA) | - | - | - | Through Hole | 
|   | V321DHB34VARISTOR 510V 40KA SQUARE 34MM Littelfuse Inc. | 7,362 |  |   Datasheet | Square 34mm, Tabs | DHB34 | Bulk | Active | 320 V | 420 V | 459 V | 510 V | 561 V | 40 kA | 460J | 1 | 3800 pF @ 1 MHz | -55°C ~ 85°C (TA) | - | - | - | Through Hole | 
|   | V351DHB34VARISTOR 549.5V 40KA SQUARE 34MM Littelfuse Inc. | 4,556 |  |   Datasheet | Square 34mm, Tabs | DHB34 | Bulk | Active | 350 V | 460 V | 495 V | 549.5 V | 604 V | 40 kA | 500J | 1 | 3600 pF @ 1 MHz | -55°C ~ 85°C (TA) | - | - | - | Through Hole | 
|   | V421DHB34VARISTOR 680V 40KA SQUARE 34MM Littelfuse Inc. | 6,693 |  |   Datasheet | Square 34mm, Tabs | DHB34 | Bulk | Active | 420 V | 560 V | 612 V | 680 V | 748 V | 40 kA | 600J | 1 | 3000 pF @ 1 MHz | -55°C ~ 85°C (TA) | - | - | - | Through Hole | 
|   | V391DHB34VARISTOR 604V 40KA SQUARE 34MM Littelfuse Inc. | 9,801 |  |   Datasheet | Square 34mm, Tabs | DHB34 | Bulk | Active | 385 V | 510 V | 545 V | 604 V | 663 V | 40 kA | 550J | 1 | 3500 pF @ 1 MHz | -55°C ~ 85°C (TA) | - | - | - | Through Hole | 
|   | V441DHB34VARISTOR 690V 40KA SQUARE 34MM Littelfuse Inc. | 2,924 |  |   Datasheet | Square 34mm, Tabs | DHB34 | Bulk | Active | 440 V | 585 V | 622 V | 690 V | 758 V | 40 kA | 630J | 1 | 2900 pF @ 1 MHz | -55°C ~ 85°C (TA) | - | - | - | Through Hole | 
|   | V331DHB34VARISTOR 518.5V 40KA SQUARE 34MM Littelfuse Inc. | 7,217 |  |   Datasheet | Square 34mm, Tabs | DHB34 | Bulk | Active | 330 V | 435 V | 467 V | 518.5 V | 570 V | 40 kA | 475J | 1 | 3750 pF @ 1 MHz | -55°C ~ 85°C (TA) | - | - | - | Through Hole | 
|   | V481HA32VARISTOR 750V 25KA DISC 32MM Littelfuse Inc. | 6,924 |  |   Datasheet | Disc 32mm, Formed Tabs | HA | Bulk | Active | 480 V | 640 V | 675 V | 750 V | 825 V | 25 kA | 450J | 1 | 1300 pF @ 1 MHz | -55°C ~ 85°C (TA) | - | - | - | Bolt Mount | 
|   | V511HA32VARISTOR 820V 25KA DISC 32MM Littelfuse Inc. | 4,677 |  |   Datasheet | Disc 32mm, Formed Tabs | HA | Bulk | Active | 510 V | 675 V | 738 V | 820 V | 902 V | 25 kA | 500J | 1 | 1200 pF @ 1 MHz | -55°C ~ 85°C (TA) | - | - | - | Bolt Mount |