From doors to compressors, Littelfuse provides electronic components for refrigerators. A block diagram shows how our temperature probes, reed


The C-III Series of metal oxide varistors are specifically designed for high surge energy absorption ratings. This is achieved through a special dielectric material formulation which also results in higher repetitive surge ratings than other MOV types.
The C-III series is primarily intended for use in AC line Transient Voltage Surge Suppressor (TVSS) product environment and other similar applications requiring high transient energy and peak current capability in a relatively small package size.
The C-III series is primarily intended for use in AC line Transient Voltage Surge Suppressor (TVSS) product environment and other similar applications requiring high transient energy and peak current capability in a relatively small package size.
- The C-III series is supplied in 14 and 20mm disc versions with various lead options.
- These types are shipped in bulk or Tape and Reel packaging.
- Part number and brand information is provided in the Ratings Table.
- Lead–free, halogen-free, and RoHS compliant
- High energy absorption capability WTM 40 J to 530 J (2 ms)
- High pulse life rating
- High peak pulse current capability ITM from 3.5 kA to 10 kA (8/20μs)ITM from 3.5 kA to 10 kA (8/20μs)
- Wide range of operating voltages VM(AC)RMS 130V to 680V
- Available in tape and reel for automatic insertion; Also available with crimped and/or trimmed lead styles
- No derating up to 85ºC ambient
- The C-III Series is supplied in 10mm, 14mm and 20mm disc versions with various lead options
C-III Parts
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Part Number | Actions | VMAX AC (V) | VMAX DC (V) | Surge Energy (WTM) (J) | ITM 1xAmps (A) | ITM 2xAmps (A) | VNDC (V) | VNDC MIN (V) | VNDC MAX (V) | Vc (V) | Duty Cycle 3kA (pulses) | Duty Cycle 750A (pulses) | Polarity | Agency Approvals |
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Part Number | Actions | VMAX AC (V) | VMAX DC (V) | Surge Energy (WTM) (J) | ITM 1xAmps (A) | ITM 2xAmps (A) | VNDC (V) | VNDC MIN (V) | VNDC MAX (V) | Vc (V) | Duty Cycle 3kA (pulses) | Duty Cycle 750A (pulses) | Polarity | Agency Approvals | |
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1000 | 1200 | 530 | 10000 | 1650 | 1500 | 1800 | 2700 | Bi-directional | cURus / UKCA / CE / IECEX / VDER | ||||||
1000 | 1200 | 260 | 6500 | 1650 | 1500 | 1800 | 2700 | Bi-directional | cURus / UKCA / CE / IECEX / VDER | ||||||
130 | 80 | 6500 | 5000 | 184 | 228 | 340 | 10 | 80 | Bi-directional | cURus / UKCA / CE / IECEX / iecex / VDER | |||||
130 | 200 | 10000 | 7000 | 184 | 228 | 340 | 20 | 120 | Bi-directional | cURus / UKCA / CE / IECEX / iecex / VDER | |||||
130 | 200 | 10000 | 7000 | 184 | 220 | 325 | 20 | 120 | Bi-directional | cURus / UKCA / IECEX / CE / iecex / VDER | |||||
130 | 40 | 3500 | 3000 | 184 | 228 | 340 | 2 | 20 | Bi-directional | iecex | |||||
130 | 40 | 3500 | 3000 | 184 | 228 | 340 | 2 | 20 | Bi-directional | cURus / UKCA / CE / IECEX / iecex / VDER | |||||
130 | 90 | 10000 | 7000 | 184 | 228 | 340 | 20 | 120 | Bi-directional | iecex | |||||
130 | 90 | 10000 | 7000 | 184 | 228 | 340 | 20 | 120 | Bi-directional | iecex | |||||
130 | 90 | 10000 | 7000 | 184 | 228 | 325 | 20 | 120 | Bi-directional | iecex | |||||
130 | 90 | 10000 | 7000 | 184 | 228 | 325 | 20 | 120 | Bi-directional | iecex | |||||
130 | 45 | 6500 | 5000 | 184 | 228 | 340 | 10 | 80 | Bi-directional | iecex |
C-III Applications

Refrigerators

Rice Cooker Motherboards
A simplified block diagram for a rice cooker motherboard illustrates the need for metal oxide varistors, Schottky diode rectifiers, and triacs.
Series: C-III Resources

Varistors Catalog
Learn about Littelfuse varistors and how to choose the best form of overvoltage protection for your application.

Circuit Protection Selection Guide
Consult this guide to learn about circuit protection considerations and the solutions Littelfuse offers. Tables help match products with applications.
C-III Custom Products Request
Need your C-III parts customized? Please let us know about yourself and your project needs, and a Littelfuse expert will be in touch about customizing our product(s) for you.