NSM20 Surface-Mount Metal Oxide Varistors (MOV)

Littelfuse NSM20 Surface-Mount Metal Oxide Varistors (MOVs) offer ultra-high surge-current handling (40 surges at 8kV/4kA) to absorb excess energy from transient overvoltage surges. These varistors feature a 12kA (single-pulse, 8/20µs) peak surge current rating (Imax), and a 6kA (15 pulses, 8/20µs) nominal discharge current (In). The NSM20 varistors are constructed with an MOV disc and tin-plated terminals within a polymer molding package. These MOVs are fully qualified for lead-free soldering and are compatible with both reflow and wave soldering processes. Typical applications include electricity power storage systems, EV on-board chargers, EV off-board charging equipment, and general electronic and electrical products requiring transient overvoltage protection.

Results: 6
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Description Datasheet Availability Pricing (PEN) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Mounting Style
Termination Style
Voltage Rating AC
Voltage Rating DC
Varistor Voltage
Clamping Voltage
Max Surge Current
Surge Energy Rating
Capacitance
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Littelfuse Varistors SMD Bidirectional 250V
Datasheet
200Expected 1/21/2027
Cut Tape
S/ 42.97
S/ 35.54
S/ 33.86
Reel
S/ 29.35
S/ 23.74
S/ 23.36
MouseReel Available
Min.: 1
Mult.: 1
: 100
NSM20 Metal Oxide Varistors PCB Mount SMD/SMT 250 VAC 320 VDC 390 V 750 V 12 kA 300 J 1.05 nF - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Varistors SMD Bidirectional 275V
Datasheet
200Expected 1/21/2027
Cut Tape
S/ 39.47
S/ 30.75
S/ 28.57
Reel
S/ 21.45
S/ 21.06
S/ 20.44
MouseReel Available
Min.: 1
Mult.: 1
: 100
NSM20 Metal Oxide Varistors PCB Mount SMD/SMT 275 VAC 350 VDC 430 V 800 V 12 kA 320 J 980 pF - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Varistors SMD Bidirectional 320V
Datasheet
200Expected 1/21/2027
Cut Tape
S/ 42.97
S/ 35.54
S/ 33.86
Reel
S/ 29.35
S/ 23.74
S/ 23.36
MouseReel Available
Min.: 1
Mult.: 1
: 100
NSM20 Metal Oxide Varistors PCB Mount SMD/SMT 320 VAC 420 VDC 510 V 950 V 12 kA 380 J 820 pF - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Varistors SMD Bidirectional 350V
Datasheet
200Expected 1/21/2027
Cut Tape
S/ 42.97
S/ 35.54
S/ 34.18
Reel
S/ 29.00
S/ 23.74
View
MouseReel Available
Min.: 1
Mult.: 1
: 100
NSM20 Metal Oxide Varistors PCB Mount SMD/SMT 350 VAC 460 VDC 560 V 1.05 kV 12 kA 400 J 730 pF - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Varistors SMD Bidirectional 385V
Datasheet
200Expected 1/21/2027
Cut Tape
S/ 42.97
S/ 35.54
S/ 34.18
Reel
S/ 29.00
S/ 23.74
View
MouseReel Available
Min.: 1
Mult.: 1
: 100
NSM20 Metal Oxide Varistors PCB Mount SMD/SMT 385 VAC 505 VDC 620 V 1.15 kV 12 kA 420 J 610 pF - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Varistors SMD Bidirectional 420V
Datasheet
200Expected 1/21/2027
Cut Tape
S/ 42.93
S/ 35.50
S/ 33.83
Reel
S/ 29.35
S/ 23.74
S/ 23.36
MouseReel Available
Min.: 1
Mult.: 1
: 100
NSM20 Metal Oxide Varistors PCB Mount SMD/SMT 420 VAC 560 VDC 680 V 1.25 kV 12 kA 440 J 490 pF - 40 C + 125 C Reel, Cut Tape, MouseReel