|
|
Varistori MOV 510V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200
- 511KH10-AT
- YAGEO
-
1:
0.427 CHF
-
2 620A magazzino
-
400In ordine
-
Nuovo prodotto
|
Codice Mouser
603-511KH10-AT
Nuovo prodotto
|
YAGEO
|
Varistori MOV 510V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200
|
|
2 620A magazzino
400In ordine
|
|
|
0.427 CHF
|
|
|
0.263 CHF
|
|
|
0.227 CHF
|
|
|
0.204 CHF
|
|
|
Visualizza
|
|
|
0.194 CHF
|
|
|
0.19 CHF
|
|
|
0.174 CHF
|
|
|
0.147 CHF
|
|
Min: 1
Mult.: 1
|
|
|
KH-AT
|
Varistor
|
PCB Mount
|
Through Hole
|
|
320 VAC
|
415 VDC
|
510 V
|
845 V
|
10 mm
|
3.5 kA
|
90 J
|
|
- 40 C
|
+ 125 C
|
|
Bulk
|
|
|
|
Varistori MLV, 040, 4V, StandardClamp Variant
- B72590X0040M060
- TDK
-
1:
0.418 CHF
-
10 000A magazzino
-
Nuovo prodotto
|
Codice Mouser
871-B72590X0040M060
Nuovo prodotto
|
TDK
|
Varistori MLV, 040, 4V, StandardClamp Variant
|
|
10 000A magazzino
|
|
|
0.418 CHF
|
|
|
0.272 CHF
|
|
|
0.169 CHF
|
|
|
0.142 CHF
|
|
|
Visualizza
|
|
|
0.071 CHF
|
|
|
0.116 CHF
|
|
|
0.101 CHF
|
|
|
0.089 CHF
|
|
|
0.078 CHF
|
|
|
0.071 CHF
|
|
Min: 1
Mult.: 1
:
10 000
|
|
|
X-series, 0402
|
TVS Diodes
|
|
SMD/SMT
|
0402 (1005 metric)
|
|
|
|
24 V
|
|
|
|
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape
|
|
|
|
Varistori 1210 30Vrms 300A
- B72530E0300K062
- TDK
-
1:
0.62 CHF
-
49 645A magazzino
|
Codice Mouser
871-B72530E0300K062
|
TDK
|
Varistori 1210 30Vrms 300A
|
|
49 645A magazzino
|
|
|
0.62 CHF
|
|
|
0.394 CHF
|
|
|
0.344 CHF
|
|
|
0.321 CHF
|
|
|
0.26 CHF
|
|
|
Visualizza
|
|
|
0.308 CHF
|
|
|
0.294 CHF
|
|
|
0.252 CHF
|
|
|
0.244 CHF
|
|
Min: 1
Mult.: 1
:
2 000
|
|
|
Standard
|
MLVs
|
PCB Mount
|
SMD/SMT
|
1210 (3225 metric)
|
30 VAC
|
38 VDC
|
47 V
|
77 V
|
|
300 A
|
2 J
|
1 nF
|
- 55 C
|
+ 150 C
|
AEC-Q100
|
Reel, Cut Tape, MouseReel
|
|
|
|
Varistori 460VAC 10% 4032mm
- B72660M0461K093
- TDK
-
1:
0.821 CHF
-
49 992A magazzino
|
Codice Mouser
871-B72660M0461K093
|
TDK
|
Varistori 460VAC 10% 4032mm
|
|
49 992A magazzino
|
|
|
0.821 CHF
|
|
|
0.629 CHF
|
|
|
0.555 CHF
|
|
|
0.52 CHF
|
|
|
Visualizza
|
|
|
0.499 CHF
|
|
|
0.431 CHF
|
|
|
0.405 CHF
|
|
|
0.402 CHF
|
|
Min: 1
Mult.: 1
|
|
|
CeraDiodes Standard
|
MOVs
|
PCB Mount
|
SMD/SMT
|
4032 (10280 metric)
|
460 VAC
|
615 VDC
|
750 V
|
1.24 kV
|
|
1 kA
|
36 J
|
55 pF
|
- 40 C
|
+ 85 C
|
|
Blister Pack
|
|
|
|
Varistori 20mm Radial Disc MOV - Kinked Leads, Bulk
- MOV-20D182KK
- Bourns
-
1:
2.35 CHF
-
2 676A magazzino
|
Codice Mouser
652-MOV-20D182KK
|
Bourns
|
Varistori 20mm Radial Disc MOV - Kinked Leads, Bulk
|
|
2 676A magazzino
|
|
|
2.35 CHF
|
|
|
1.74 CHF
|
|
|
1.58 CHF
|
|
|
1.36 CHF
|
|
|
Visualizza
|
|
|
1.30 CHF
|
|
|
1.22 CHF
|
|
|
1.07 CHF
|
|
|
1.03 CHF
|
|
|
0.992 CHF
|
|
Min: 1
Mult.: 1
|
|
|
MOV-20D
|
Varistors
|
Through Hole
|
Radial
|
|
1.1 kVAC
|
1.465 kVDC
|
1.8 kV
|
2.97 kV
|
23 mm
|
6.5 kA
|
625 J
|
312 pF
|
- 40 C
|
+ 105 C
|
|
Bulk
|
|
|
|
Varistori 20mm Radial Disc MOV - Kinked Leads, T&R
- MOV-20D781KKTR
- Bourns
-
1:
1.66 CHF
-
3 952A magazzino
|
Codice Mouser
652-MOV-20D781KKTR
|
Bourns
|
Varistori 20mm Radial Disc MOV - Kinked Leads, T&R
|
|
3 952A magazzino
|
|
|
1.66 CHF
|
|
|
1.04 CHF
|
|
|
0.934 CHF
|
|
|
0.763 CHF
|
|
|
0.712 CHF
|
|
|
Visualizza
|
|
|
0.63 CHF
|
|
|
0.497 CHF
|
|
|
0.485 CHF
|
|
Min: 1
Mult.: 1
:
250
|
|
|
MOV-20D
|
Varistors
|
Through Hole
|
Radial
|
23 mm x 28 mm
|
485 VAC
|
640 VDC
|
780 V
|
1.29 kV
|
23 mm
|
6.5 kA
|
255 J
|
612 pF
|
- 40 C
|
+ 105 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
Varistori 60VAC 85VDC 1100pF AEC-Q200
- V85MLA1812NRAUTO
- Littelfuse
-
1:
2.45 CHF
-
1 871A magazzino
|
Codice Mouser
576-V85MLA1812NRAUTO
|
Littelfuse
|
Varistori 60VAC 85VDC 1100pF AEC-Q200
|
|
1 871A magazzino
|
|
|
2.45 CHF
|
|
|
1.77 CHF
|
|
|
1.67 CHF
|
|
|
1.42 CHF
|
|
|
0.983 CHF
|
|
|
Visualizza
|
|
|
1.34 CHF
|
|
|
1.17 CHF
|
|
|
0.945 CHF
|
|
Min: 1
Mult.: 1
:
1 000
|
|
|
MLA1812NR
|
Automotive Multilayer Varistors
|
SMD/SMT
|
SMD/SMT
|
1812 (4532 metric)
|
60 VAC
|
85 VDC
|
90 V to 110 V
|
145 V
|
|
400 A
|
|
1.1 nF
|
- 40 C
|
+ 125 C
|
AEC-Q200
|
Reel, Cut Tape, MouseReel
|
|
|
|
Varistori 35VAC 45VDC 1800pF AEC-Q200
- V45MLA1812NRAUTO
- Littelfuse
-
1:
2.45 CHF
-
1 404A magazzino
|
Codice Mouser
576-V45MLA1812NRAUTO
|
Littelfuse
|
Varistori 35VAC 45VDC 1800pF AEC-Q200
|
|
1 404A magazzino
|
|
|
2.45 CHF
|
|
|
1.77 CHF
|
|
|
1.67 CHF
|
|
|
1.42 CHF
|
|
|
1.04 CHF
|
|
|
Visualizza
|
|
|
1.34 CHF
|
|
|
1.17 CHF
|
|
|
0.945 CHF
|
|
Min: 1
Mult.: 1
:
1 000
|
|
|
MLA1812NR
|
Automotive Multilayer Varistors
|
SMD/SMT
|
SMD/SMT
|
1812 (4532 metric)
|
35 VAC
|
45 VDC
|
50 V to 62 V
|
90 V
|
|
500 A
|
|
1.8 nF
|
- 40 C
|
+ 125 C
|
AEC-Q200
|
Reel, Cut Tape, MouseReel
|
|
|
|
Varistori 75VAC 10% 40mm High E
- B72240B0750K001
- TDK
-
1:
19.34 CHF
-
1 761A magazzino
|
Codice Mouser
871-B72240B0750K001
|
TDK
|
Varistori 75VAC 10% 40mm High E
|
|
1 761A magazzino
|
|
|
19.34 CHF
|
|
|
15.55 CHF
|
|
|
14.43 CHF
|
|
|
13.55 CHF
|
|
|
Visualizza
|
|
|
13.07 CHF
|
|
|
12.77 CHF
|
|
Min: 1
Mult.: 1
|
|
|
Disc Varistor, High-Energy 40mm
|
MOVs
|
Chassis Mount
|
Screw
|
|
75 VAC
|
100 VDC
|
120 V
|
220 V
|
40 mm
|
25 kA
|
190 J
|
11 nF
|
- 40 C
|
+ 105 C
|
|
Bulk
|
|
|
|
Varistori 4VAC 5.6VDC 0.3J 250 0pF 8.5 V 18V
- V2F105C150Y1FDP
- KYOCERA AVX
-
1:
1.16 CHF
-
81 791A magazzino
-
23 00025.09.2026 previsto
|
Codice Mouser
581-V2F105C150Y1FDP
|
KYOCERA AVX
|
Varistori 4VAC 5.6VDC 0.3J 250 0pF 8.5 V 18V
|
|
81 791A magazzino
23 00025.09.2026 previsto
|
|
|
1.16 CHF
|
|
|
0.544 CHF
|
|
|
0.473 CHF
|
|
|
0.442 CHF
|
|
|
0.378 CHF
|
|
|
0.327 CHF
|
|
Min: 1
Mult.: 1
:
1 000
|
|
|
V2F
|
MLVs
|
PCB Mount
|
SMD/SMT
|
0805 (2012 metric)
|
4 VAC
|
5.6 VDC
|
8.5 V
|
18 V
|
|
120 A
|
300 mJ
|
2.5 nF
|
- 55 C
|
+ 125 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
Varistori 620V 40KA MOV Disc Square 34mm
- 621KS34
- YAGEO
-
1:
4.79 CHF
-
9 833A magazzino
|
Codice Mouser
603-621KS34
|
YAGEO
|
Varistori 620V 40KA MOV Disc Square 34mm
|
|
9 833A magazzino
|
|
|
4.79 CHF
|
|
|
3.66 CHF
|
|
|
3.32 CHF
|
|
|
2.53 CHF
|
|
Min: 1
Mult.: 1
|
|
|
34S
|
MOVs
|
Chassis Mount
|
Screw
|
|
385 VAC
|
505 VDC
|
620 V
|
1.025 kV
|
34 mm
|
40 kA
|
780 J
|
3.6 nF
|
- 40 C
|
+ 85 C
|
|
Bulk
|
|
|
|
Varistori CHIP GUARD 24VOLT
- CG0402MLU-24G
- Bourns
-
1:
0.226 CHF
-
20 561A magazzino
|
Codice Mouser
652-CG0402MLU-24G
|
Bourns
|
Varistori CHIP GUARD 24VOLT
|
|
20 561A magazzino
|
|
|
0.226 CHF
|
|
|
0.14 CHF
|
|
|
0.12 CHF
|
|
|
0.11 CHF
|
|
|
Visualizza
|
|
|
0.086 CHF
|
|
|
0.105 CHF
|
|
|
0.10 CHF
|
|
|
0.095 CHF
|
|
|
0.093 CHF
|
|
|
0.086 CHF
|
|
Min: 1
Mult.: 1
:
10 000
|
|
|
MLU
|
|
|
SMD/SMT
|
0402 (1005 metric)
|
|
|
|
25 V
|
|
|
|
|
- 40 C
|
+ 125 C
|
|
Reel, Cut Tape, MouseReel
|
|
|
|
Varistori IsoMOV 5KA 300Vrms Bulk In-Line
- IsoM5-300-B-L2
- Bourns
-
1:
1.68 CHF
-
3 908A magazzino
|
Codice Mouser
652-ISOM5-300-B-L2
|
Bourns
|
Varistori IsoMOV 5KA 300Vrms Bulk In-Line
|
|
3 908A magazzino
|
|
|
1.68 CHF
|
|
|
1.18 CHF
|
|
|
0.983 CHF
|
|
|
0.934 CHF
|
|
|
Visualizza
|
|
|
0.795 CHF
|
|
|
0.727 CHF
|
|
|
0.678 CHF
|
|
|
0.638 CHF
|
|
Min: 1
Mult.: 1
|
|
|
IsoM5
|
MOVs
|
Through Hole
|
Radial
|
|
300 VAC
|
385 VDC
|
|
800 V
|
17 mm
|
250 A
|
|
40 pF
|
- 40 C
|
+ 125 C
|
|
Bulk
|
|
|
|
Varistori IsoMOV 5KA 420Vrms Bulk In-Line
- IsoM5-420-B-L2
- Bourns
-
1:
1.75 CHF
-
5 065A magazzino
|
Codice Mouser
652-ISOM5-420-B-L2
|
Bourns
|
Varistori IsoMOV 5KA 420Vrms Bulk In-Line
|
|
5 065A magazzino
|
|
|
1.75 CHF
|
|
|
1.20 CHF
|
|
|
0.983 CHF
|
|
|
0.795 CHF
|
|
|
Visualizza
|
|
|
0.727 CHF
|
|
|
0.636 CHF
|
|
|
0.605 CHF
|
|
Min: 1
Mult.: 1
|
|
|
IsoM5
|
MOVs
|
Through Hole
|
Radial
|
|
420 VAC
|
560 VDC
|
|
1.1 kV
|
17 mm
|
250 A
|
|
40 pF
|
- 40 C
|
+ 125 C
|
|
Bulk
|
|
|
|
Varistori PV 300V 10%
- PV300K3225R2
- Bourns
-
1:
0.588 CHF
-
8 634A magazzino
|
Codice Mouser
652-PV300K3225R2
|
Bourns
|
Varistori PV 300V 10%
|
|
8 634A magazzino
|
|
|
0.588 CHF
|
|
|
0.366 CHF
|
|
|
0.325 CHF
|
|
|
0.303 CHF
|
|
|
0.279 CHF
|
|
|
Visualizza
|
|
|
0.29 CHF
|
|
|
0.244 CHF
|
|
|
0.243 CHF
|
|
Min: 1
Mult.: 1
:
1 000
|
|
|
PV
|
MOVs
|
PCB Mount
|
SMD/SMT
|
|
300 VAC
|
385 VDC
|
470 V
|
775 V
|
|
400 A
|
15 J
|
70 pF
|
- 40 C
|
+ 85 C
|
|
Reel, Cut Tape
|
|
|
|
Varistori 175VAC 10% 7mm StandarD
- B72207S0171K101
- TDK
-
1:
0.177 CHF
-
21 334A magazzino
|
Codice Mouser
871-B72207S171K101
|
TDK
|
Varistori 175VAC 10% 7mm StandarD
|
|
21 334A magazzino
|
|
|
0.177 CHF
|
|
|
0.108 CHF
|
|
|
0.093 CHF
|
|
|
0.085 CHF
|
|
|
Visualizza
|
|
|
0.08 CHF
|
|
|
0.077 CHF
|
|
|
0.072 CHF
|
|
|
0.069 CHF
|
|
Min: 1
Mult.: 1
|
|
|
Disc Varistor, StandarD 7mm
|
MOVs
|
PCB Mount
|
Radial
|
|
175 VAC
|
225 VDC
|
270 V
|
455 V
|
7 mm
|
1.2 kA
|
13 J
|
150 pF
|
- 40 C
|
+ 105 C
|
|
Bulk
|
|
|
|
Varistori 275VAC 10% 7mm AdvanceD
- B72207S2271K101
- TDK
-
1:
0.193 CHF
-
28 645A magazzino
|
Codice Mouser
871-B72207S2271K101
|
TDK
|
Varistori 275VAC 10% 7mm AdvanceD
|
|
28 645A magazzino
|
|
|
0.193 CHF
|
|
|
0.118 CHF
|
|
|
0.101 CHF
|
|
|
0.095 CHF
|
|
|
Visualizza
|
|
|
0.089 CHF
|
|
|
0.082 CHF
|
|
|
0.079 CHF
|
|
|
0.078 CHF
|
|
|
0.073 CHF
|
|
Min: 1
Mult.: 1
|
|
|
Disc Varistor, AdvanceD 7mm
|
MOVs
|
PCB Mount
|
Radial
|
|
275 VAC
|
350 VDC
|
430 V
|
710 V
|
7 mm
|
1.75 kA
|
27.5 J
|
95 pF
|
- 40 C
|
+ 105 C
|
|
Bulk
|
|
|
|
Varistori 550VAC 10% 10mm StandarD
- B72210S551K101
- TDK
-
1:
0.595 CHF
-
6 115A magazzino
|
Codice Mouser
871-B72210S551K101
|
TDK
|
Varistori 550VAC 10% 10mm StandarD
|
|
6 115A magazzino
|
|
|
0.595 CHF
|
|
|
0.376 CHF
|
|
|
0.332 CHF
|
|
|
0.31 CHF
|
|
|
Visualizza
|
|
|
0.284 CHF
|
|
|
0.279 CHF
|
|
|
0.266 CHF
|
|
|
0.242 CHF
|
|
Min: 1
Mult.: 1
|
|
|
B722xxS0
|
MOVs
|
PCB Mount
|
Radial
|
|
550 VAC
|
745 VDC
|
910 V
|
1.5 kV
|
12 mm
|
2.5 kA
|
60 J
|
120 pF
|
- 40 C
|
+ 105 C
|
|
Bulk
|
|
|
|
Varistori Leaded Varistor, 240pF 625VAC, 825VDC
- B72214P2621K101
- TDK
-
1:
0.983 CHF
-
9 706A magazzino
|
Codice Mouser
871-B72214P2621K101
|
TDK
|
Varistori Leaded Varistor, 240pF 625VAC, 825VDC
|
|
9 706A magazzino
|
|
|
0.983 CHF
|
|
|
0.71 CHF
|
|
|
0.644 CHF
|
|
|
0.543 CHF
|
|
|
Visualizza
|
|
|
0.519 CHF
|
|
|
0.508 CHF
|
|
|
0.491 CHF
|
|
|
0.465 CHF
|
|
Min: 1
Mult.: 1
|
|
|
Disc Varistor, Multi_Pulse AdvanceD 14mm
|
MOVs
|
PCB Mount
|
Radial
|
|
625 VAC
|
825 VDC
|
1 kV
|
1.65 kV
|
17 mm
|
6 kA
|
240 J
|
240 pF
|
- 40 C
|
+ 105 C
|
|
Bulk
|
|
|
|
Varistori 625VAC 10% 20mm SuperioR MP
- B72220P3621K101
- TDK
-
1:
1.93 CHF
-
1 650A magazzino
|
Codice Mouser
871-B72220P3621K101
|
TDK
|
Varistori 625VAC 10% 20mm SuperioR MP
|
|
1 650A magazzino
|
|
|
1.93 CHF
|
|
|
1.44 CHF
|
|
|
1.31 CHF
|
|
|
1.16 CHF
|
|
|
Visualizza
|
|
|
1.09 CHF
|
|
|
1.07 CHF
|
|
|
1.05 CHF
|
|
Min: 1
Mult.: 1
|
|
|
Disc Varistor, Multi-Pulse SuperioR 20mm
|
MOVs
|
PCB Mount
|
Radial
|
|
625 VAC
|
825 VDC
|
1 kV
|
1.65 kV
|
23 mm
|
10 kA
|
540 J
|
500 pF
|
- 40 C
|
+ 105 C
|
|
Bulk
|
|
|
|
Varistori 680VAC 10% 20mm StandarD
- B72220S0681K101
- TDK
-
1:
0.636 CHF
-
3 463A magazzino
|
Codice Mouser
871-B72220S0681K101
|
TDK
|
Varistori 680VAC 10% 20mm StandarD
|
|
3 463A magazzino
|
|
Min: 1
Mult.: 1
|
|
|
Disc Varistor, StandarD 20mm
|
MOVs
|
PCB Mount
|
Radial
|
|
680 VAC
|
895 VDC
|
1.1 kV
|
1.815 kV
|
21.5 mm
|
6.5 kA
|
250 J
|
340 pF
|
- 40 C
|
+ 105 C
|
|
Bulk
|
|
|
|
Varistori 14Vrms 120A
- B72510E0140K062
- TDK
-
1:
0.378 CHF
-
55 902A magazzino
|
Codice Mouser
871-B72510E0140K062
|
TDK
|
Varistori 14Vrms 120A
|
|
55 902A magazzino
|
|
|
0.378 CHF
|
|
|
0.233 CHF
|
|
|
0.203 CHF
|
|
|
0.187 CHF
|
|
|
Visualizza
|
|
|
0.153 CHF
|
|
|
0.179 CHF
|
|
|
0.171 CHF
|
|
|
0.153 CHF
|
|
Min: 1
Mult.: 1
:
3 000
|
|
|
SMD Disc Varistor, 4032mm
|
MLVs
|
PCB Mount
|
SMD/SMT
|
0805 (2012 metric)
|
14 VAC
|
18 VDC
|
22 V
|
40 V
|
|
120 A
|
300 mJ
|
350 pF
|
- 55 C
|
+ 150 C
|
AEC-Q100
|
Reel, Cut Tape, MouseReel
|
|
|
|
Varistori 150VAC 10% 3225mm
- B72650M0151K093
- TDK
-
1:
0.765 CHF
-
4 074A magazzino
|
Codice Mouser
871-B72650M0151K093
|
TDK
|
Varistori 150VAC 10% 3225mm
|
|
4 074A magazzino
|
|
|
0.765 CHF
|
|
|
0.493 CHF
|
|
|
0.434 CHF
|
|
|
0.405 CHF
|
|
|
Visualizza
|
|
|
0.388 CHF
|
|
|
0.374 CHF
|
|
|
0.357 CHF
|
|
|
0.346 CHF
|
|
|
0.311 CHF
|
|
Min: 1
Mult.: 1
|
|
|
Automotive Standard
|
MLVs
|
PCB Mount
|
SMD/SMT
|
|
150 VAC
|
200 VDC
|
240 V
|
395 V
|
|
400 A
|
4.9 J
|
90 pF
|
- 40 C
|
+ 85 C
|
|
Blister Pack
|
|
|
|
Varistori 230VAC 10% 4032mm
- B72660M0231K072
- TDK
-
1:
0.821 CHF
-
6 406A magazzino
|
Codice Mouser
871-B72660M0231K072
|
TDK
|
Varistori 230VAC 10% 4032mm
|
|
6 406A magazzino
|
|
|
0.821 CHF
|
|
|
0.531 CHF
|
|
|
0.468 CHF
|
|
|
0.437 CHF
|
|
|
Visualizza
|
|
|
0.419 CHF
|
|
|
0.404 CHF
|
|
|
0.373 CHF
|
|
|
0.37 CHF
|
|
|
0.336 CHF
|
|
Min: 1
Mult.: 1
|
|
|
Standard Telecom
|
MLVs
|
PCB Mount
|
SMD/SMT
|
4032 (10280 metric)
|
230 VAC
|
300 VDC
|
360 V
|
595 V
|
|
1.2 kA
|
17 J
|
115 pF
|
- 40 C
|
+ 85 C
|
|
Blister Pack
|
|
|
|
Varistori 275VAC 10% 4032mm
- B72660M0271K093
- TDK
-
1:
0.964 CHF
-
2 645A magazzino
|
Codice Mouser
871-B72660M0271K093
|
TDK
|
Varistori 275VAC 10% 4032mm
|
|
2 645A magazzino
|
|
|
0.964 CHF
|
|
|
0.628 CHF
|
|
|
0.555 CHF
|
|
|
0.519 CHF
|
|
|
Visualizza
|
|
|
0.498 CHF
|
|
|
0.431 CHF
|
|
|
0.423 CHF
|
|
|
0.402 CHF
|
|
Min: 1
Mult.: 1
|
|
|
Automotive SHCV
|
|
|
|
|
275 VAC
|
|
|
|
|
|
|
|
|
|
|
Blister Pack
|
|
Svizzera