Maida Development Company - sales@maida.com - (757) 723-0785
STANDARD MARKING
Minimum marking shall consist of an
abbreviated style designation and, when
space is available, the manufacturer’s
initials or company logo.
Example
MDC
Z131
210UL
Where:
MDC - Company Initials
Z - Z
inc Oxide Varistor
131 - AC Voltage rating (130VAC)
210 - Rating code
UL - UL recognition, if applicable
A manufacturing date code and/or
special markings are available upon
request.
Other safety agency designations are
included where applicable.
D MAX.
T MAX.
H MAX.
X NOM.
Y NOM.
d NOM.
Y NOM.
D MAX. T MAX.
H MAX.
X NOM.
d NOM.
HIGH ENERGY SERIES
INTRODUCTION
D 78 80 ZOV 131 RA 210
1. Coating Designation
D – Standard Epoxy Coating
P – Phenolic Coating
S – Square Disc Epoxy Coatin g
PS – Square Disc Phenolic
Coating
Neither – Denote no conformal
coating.
2. Nominal Disk Diameter
S66 – 25mm Square
78 – 32mm
S75 – 34mm Square
75 – 40mm
77 – 53mm
3. Lead Configuration
(Refer to lead codes)
4. Material Identifier
Z
inc Oxide Varistor
5. AC Voltage Rating
Two significant figures plus nu mber
of zeroes that follow, i.e. 131 is 130 VAC
6. Special Instructions, RA is standard
7. Rating Code, up to four numbers
The High Energy Series is our large tab-leaded and
wire-leaded varistors. They are available in round and
square shapes. These varistors are available in
25mm, 32mm, 34mm, 40mm, and 53mm
configurations including single and dual discs. They
are available with maximum continuous operating
voltages (MCOV) ranging from 130VAC to 1000VAC
(up to 1500VAC upon req uest).
The High Energy Series is designed for pulse
repetition and/or very large surge current
environments. Numerous tab forms are available for
all sizes.
STYLE DESIGNATION
The Maida Style Number is the typical means to
identify our components when ordered. The style
number identifies several parameters that are
important for the characteristics of the device. An
alternative ordering method, if known, is by our Item
Number.
The following example is the standard part
numbering system when ordering our High Energy
Series components by the Maida Style Number:
51
Typical
Maida Nominal Minimum Cap.
Style Size Marking
Number 10 x 1000 8 x 20 1 V rms
μ
sec
μ
sec
1 2 Vmin Vmax @1kHz
A B C D E F (mm) (AC) (DC) (J) (J) (A) (A) (V) (V) (V) (A) (pF)
S6680ZOV131RA180 X X 25 C5S-131UL 130 175 180 180 20000 14000 184 224 340 100 5000
D7880ZOV131RA210 X X 32 Z131-210UL 130 175 210 210 25000 20000 184 224 340 200 5400
S7580ZOV131RA310 X X 34 D4S-131UL 130 175 310 310 40000 32000 184 224 340 300 8100
D7580ZOV131RA310 X X 40 Z131-310UL 130 175 310 310 40000 32000 184 224 340 300 7600
D7780ZOV131RA490 X X 53 Z131-490UL 130 175 490 490 70000 56000 184 224 340 500 15000
S6680ZOV141RA190 X X 25 C5S-141UL 140 180 190 190 20000 14000 198 242 360 100 4700
D7880ZOV141RA225 X X 32 Z141-225UL 140 180 225 225 25000 20000 198 242 360 200 5000
S7580ZOV141RA330 X X 34 D4S-141UL 140 180 330 330 40000 32000 198 242 360 300 7500
D7580ZOV141RA330 X X 40 Z141-330UL 140 180 330 330 40000 32000 198 242 360 300 7100
D7780ZOV141RA530 X X 53 Z141-530UL 140 180 530 530 70000 56000 198 242 360 500 14000
S6680ZOV151RA200 X X 25 C5S-151UL 150 200 200 200 20000 14000 212 259 395 100 4300
D7880ZOV151RA240 X X 32 Z151-240UL 150 200 240 240 25000 20000 212 259 395 200 4600
S7580ZOV151RA360 X X 34 D4S-151UL 150 200 360 360 40000 32000 212 259 395 300 6900
D7580ZOV151RA360 X X 40 Z151-360UL 150 200 360 360 40000 32000 212 259 395 300 6500
D7780ZOV151RA570 X X 53 Z151-570UL 150 200 570 570 70000 56000 212 259 395 500 13000
S6680ZOV181RA250 X X 25 C5S-181UL 180 230 250 250 20000 14000 255 311 465 100 3200
D7880ZOV181RA250 X X 32 Z181-250UL 180 230 250 250 25000 20000 255 311 465 200 2900
S7580ZOV181RA390 X X 34 D4S-181UL 180 230 390 390 40000 32000 255 311 465 300 5600
D7580ZOV181RA390 X X 40 Z181-390UL 180 230 390 390 40000 32000 255 311 465 300 4000
D7780ZOV181RA630 X X 53 Z181-630UL 180 230 630 630 70000 56000 255 311 465 500 6300
S6680ZOV211RA270 X X 25 C5S-211UL 210 270 270 270 20000 14000 297 363 640 100 2700
D7880ZOV211RA360 X 32 Z211-360UL 210 270 360 360 25000 20000 297 363 640 200 2500
S7580ZOV211RA430 X X 34 D4S-211UL 210 270 430 430 40000 32000 297 363 640 300 4800
D7580ZOV211RA430 X 40 Z211-430UL 210 270 430 430 40000 32000 297 363 640 300 3400
D7780ZOV211RA700 X 53 Z211-700UL 210 270 700 700 70000 56000 297 363 640 500 5400
S6680ZOV231RA290 X X 25 C5S-231UL 230 300 290 290 20000 14000 326 397 595 100 2500
D7880ZOV231RA300 X X 32 Z231-300UL 230 300 300 300 25000 20000 326 397 595 200 2300
S7580ZOV231RA460 X X 34 D4S-231UL 230 300 460 460 40000 32000 326 397 595 300 4400
D7580ZOV231RA460 X X 40 Z231-460UL 230 300 460 460 40000 32000 326 397 595 300 3100
D7780ZOV231RA730 X X 53 Z231-730UL 230 300 730 730 70000 56000 326 397 595 500 4900
S6680ZOV251RA310 X X 25 C5S-251UL 250 330 330 330 20000 14000 354 432 650 100 2300
D7880ZOV251RA330 X X 32 Z251-330UL 250 330 360 330 25000 20000 354 432 650 200 2500
S7580ZOV251RA490 X X 34 D4S-251UL 250 330 490 490 40000 32000 354 432 650 300 4100
D7580ZOV251RA490 X X 40 Z251-490UL 250 330 490 490 40000 32000 354 432 650 300 2900
D7780ZOV251RA800 X X 53 Z251-800UL 250 330 880 880 70000 56000 354 432 650 500 4600
S6680ZOV271RA330 X X 25 C5S-271UL 270 360 340 340 20000 14000 382 466 710 100 2100
D7880ZOV271RA360 X X 32 Z271-360UL 270 360 360 360 25000 20000 382 466 710 200 2000
S7580ZOV271RA550 X X 34 D4S-271UL 270 360 550 550 40000 32000 382 466 710 300 3800
D7580ZOV271RA550 X X 40 Z271-550UL 270 360 550 550 40000 32000 382 466 710 300 2700
D7780ZOV271RA860 X X 53 Z271-860UL 270 360 950 950 70000 56000 382 466 710 500 4200
S6680ZOV301RA350 X X 25 C5S-301UL 300 390 350 350 20000 14000 425 518 790 100 1900
D7880ZOV301RA380 X X 32 Z301-380UL 300 390 380 380 25000 20000 425 518 790 200 1700
S7580ZOV301RA600 X X 34 D4S-301UL 300 390 600 600 40000 32000 425 518 790 300 3400
D7580ZOV301RA600 X X 40 Z301-600UL 300 390 600 600 40000 32000 425 518 790 300 2400
D7780ZOV301RA940 X X 53 Z301-940UL 300 390 1000 1000 70000 56000 425 518 790 500 3800
S6680ZOV321RA360 X X 25 C5S-321UL 320 420 360 360 20000 14000 453 553 850 100 1800
D7880ZOV321RA430 X X 32 Z321-430UL 320 420 430 430 25000 20000 453 553 850 200 1600
S7580ZOV321RA640 X X 34 D4S-321UL 320 420 640 640 40000 32000 453 553 850 300 3200
D7580ZOV321RA640 X X 40 Z321-640UL 320 420 640 640 40000 32000 453 553 850 300 2200
D7780ZOV321RA1000 X X 53 Z321-1000UL 320 420 1100 1100 70000 52000 453 553 850 500 3600
NOTES:
Appendix A lists the single-pulse peak current and energy ratings on file with the Safety Agencies.
Maximum transient rating specified in this table are valid. They may differ from those shown in Appendix A.
A = UL1449 D = VDE
B = cUL E =
C = CSA F =
Standards
(
8 x 20
μ
sec
)
Voltage
Agency # Pulses
Safety @1 mA DC (@Test Current)
8 x 20
μ
sec
HIGH ENERGY SERIES
SPECIFICATIONS
VoltageVoltage To CurrentApplied
Maximum Ratings Electrical Characteristics
Recognitions
130VAC thru 320VAC VARISTORS
Max
Energy
Continuous Transient
Varistor ClampingPeak
52