Metal Oxide Varistors

What are they?
Metal Oxide Varistors, more commonly known as ’MOVs’ are devices that provide excellent transient voltage suppression. They are a type of non-linear device that feature similar characteristics to Zener diodes. They are used to protect vulnerable electronic circuits and components from overvoltage conditions that can cause damage. Any potentially destructive overvoltage energy is dissipated as heat.
Construction:
Metal oxide varistors are typically constructed from zinc oxide and combined with small additions of other metal oxides such as cobalt, magnese or bismuth. These materials are sintered into ceramic casings during manufacture. Although MOVs are available in different formats, they are most commonly radial leaded discs.
Applications:
• Suppression of lightning and other high levels of transient energy
• Low voltage power supplies in DC circuits
• Low voltage power supply in automotive applications
• Protection from internal transients within capacitor discharges, relay switching and inductive load switching

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Description Price Varistor Voltage Maximum AC Voltage Rating Maximum DC Voltage Rating Clamping Voltage Clamping Current Energy Series Diameter Maximum Surge Current Capacitance Length Depth Thickness Dimensions
RS庫存編號 785-8960
製造零件編號ERZE14A431
BrandPanasonic
HK$7.27
/個 (每包:5個)
單位
430V 275V 350V 710V 100A 303J ZNR 16.5mm 10000A 800pF - - 6.2mm 16.5 x 6.2mm
RS庫存編號 138-9307
製造零件編號B72214S0381K101
BrandEPCOS
HK$3.29
個 (以毎袋:25)
單位
620V 385Vrms 505V 1025V 50A 80J Standard - 4500A 315pF 15.5mm 19mm 5.9mm 15.5 x 5.9 x 19mm
RS庫存編號 171-0017
製造零件編號V5.5MLA0603H
BrandLittelfuse
HK$1.284
個 (在毎卷:2500)
單位
9.3V 4V 5.5V 17.5V 1A 0.1J ML - 30A 500pF 1.6mm 1mm 0.8mm 1.6 x 0.8 x 1mm
RS庫存編號 800-7093
製造零件編號V39ZA1P
BrandLittelfuse
HK$2.699
/個 (每包:25個)
單位
43V 25V 31V 79V 2.5A 1.2J ZA 9mm 250A 1.35nF - - 5mm 9 (Dia.) x 5mm
RS庫存編號 851-8414
製造零件編號MOV-20D821K
BrandBourns
HK$8.21
單位
820V - 670V 1355V 100A 265J MOV-20D 23mm - 500pF - - 7.8mm 23 (Dia.) x 7.8mm
RS庫存編號 291-3475
製造零件編號B72240B0750K001
BrandEPCOS
HK$243.35
單位
120V 75V 100V 220V 300A 190J HighE - 40000A 11nF 60mm 14mm - -
RS庫存編號 887-6690
製造零件編號CANAT01DP
BrandAVX
HK$1.46
/個 (每包:100個)
單位
- - - - - - CAN - - - 1.6mm 0.8mm - 1.6 x 0.8 x 0.9mm
RS庫存編號 851-8290
製造零件編號MOV-14D221K
BrandBourns
HK$1.97
單位
220V - 180V 360V 50A 60J MOV-14D 16.5mm - 900pF - - 3.9mm 16.5 (Dia.) x 3.9mm
RS庫存編號 187-8149
製造零件編號ERZE14A821SC
BrandPanasonic
HK$4.345
個 (以毎袋:1000)
單位
820V 510V 670V 1355V 100A 460J E14-S1 17.5mm 7500A 500pF - - 8.5mm 17.5 Dia. x 8.5mm
RS庫存編號 167-8505
製造零件編號B72240B0231K001
BrandEPCOS
HK$225.107
個 (以毎盒:10)
單位
360V 230V 300V 595V 300A 460J HighE - 40000A 3.2nF 60mm 14mm - -
RS庫存編號 720-9759
製造零件編號ERZV05D101
BrandPanasonic
HK$2.76
/個 (每包:10個)
單位
100V 60V 85V 175V 5A 4J ZNR 7mm 800A 400pF - - 4.3mm 7 (Dia.) x 4.3mm
RS庫存編號 162-0229
製造零件編號B72500E0140K060
BrandEPCOS
HK$0.857
個 (在毎卷:4000)
單位
19.8 → 24.2V 14V 18V 40V 1A 0.2J - - 30A 100pF 1.6mm 0.8mm - 1.6 x 0.8 x 0.9mm
RS庫存編號 669-4317
製造零件編號820572501
HK$6.08
/個 (每包:5個)
單位
39V 25V 31V 77V 2.5A 2.4J WE-VD 9mm 250A 1.82nF - - 4.7mm 9 (Dia.) x 4.7mm
RS庫存編號 468-207
製造零件編號B72214Q0251K101
BrandEPCOS
HK$9.342
/個 (每包:5個)
單位
390V 250V 320V 650V 65A 140J EnergetiQ 16.5mm 8000A 500pF - - 5.7mm 16.5 (Dia.) x 5.7mm
RS庫存編號 170-2824
製造零件編號B72205S0301K101
BrandEPCOS
HK$0.958
個 (在毎卷:1000)
單位
470V 300V 385V - 400A 9.6J StandarD 7mm - 45pF - - 4.5mm 7 (Dia.) x 4.5mm
RS庫存編號 187-8440
製造零件編號ERZE14A221SC
BrandPanasonic
HK$6.207
/個 (每包:10個)
單位
220V 140V 180V 360V 100A 155J E14-S1 16.5mm 7500A 1200pF - - 5.3mm 16.5 Dia. x 5.3mm
RS庫存編號 146-2728
製造零件編號B72590D0160H060
BrandEPCOS
HK$1.99
/個 (每包:50個)
單位
65V - 16V 290V - - High Speed - - 3pF 1.15mm 0.6mm 0.6mm 1.15 x 0.6 x 0.6mm
RS庫存編號 266-5390
製造零件編號B72240B0271K001
BrandEPCOS
HK$236.26
單位
430V 275V 350V 710V 300A 550J HighE - 40000A 2.7nF 60mm 14mm - -
RS庫存編號 162-0260
製造零件編號B72660M0271K072
BrandEPCOS
HK$3.852
個 (在毎卷:1000)
單位
430V 275Vrms 350V 710V 10A - CU - 1200A 95pF 10.2mm 8mm 4.5mm 10.2 x 8 x 4.5mm
RS庫存編號 720-9948
製造零件編號ERZV14D121
BrandPanasonic
HK$4.408
/個 (每包:5個)
單位
120V 75V 100V 200V 50A - ZNR 15.5mm 6000A 2.7nF - - - 15.5 (Dia.) x 4.9mm