As a simplified block diagram shows, a complex system of pumps, motors, and heaters allows coffee makers and espresso machines to grind beans,
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The RA Series transient surge suppressors are varistors (MOVs) supplied in a low-profile box that features a precise seating plane to increase mechanical stability for secure circuit-board mounting. This feature makes these devices suitable for industrial applications critical to vibration. Their construction permits operation up to 125°C (ambient) without derating.
- The RA series are available in voltage ratings up to 275V V M(AC)RMS and energy levels up to 140J.
- These varistors are used in automotive, motor control, telecommunication, and military applications.
- Lead–free/RoHS compliant parts available (add suffix "x2749")
- Low profile outline with precise seating plane
- No derating up to 125ºC ambient
- In-line leads
- Wide operating voltage range: VM(AC)RMS: 4 – 275V VM(DC): 5.5 – 369V
- High energy absorption capability W TMup to 140J
- 3 model sizes available A8, RA16, and RA22
RA Parts
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| 60 | 81 | 20 | 4500 | 100 | 90 | 110 | 175 | Bi-directional | 2000 | ||||
| 60 | 81 | 20 | 4500 | 102.5 | 95 | 110 | 175 | ||||||
| 60 | 81 | 5 | 1200 | 100 | 90 | 110 | 165 | Bi-directional | 400 | ||||
| 60 | 81 | 5 | 1200 | 100 | 90 | 110 | 165 | ||||||
| 75 | 102 | 22 | 4500 | 120 | 108 | 132 | 205 | Bi-directional | 1700 | ||||
| 75 | 102 | 22 | 4500 | 120 | 108 | 132 | 205 | ||||||
| 75 | 102 | 6 | 1200 | 120 | 108 | 132 | 205 | Bi-directional | 300 | ||||
| 75 | 102 | 6 | 1200 | 120 | 108 | 132 | 205 | ||||||
| 6 | 8 | 0.6 | 150 | 12 | 9 | 16 | 34 | Bi-directional | 2500 | ||||
| 6 | 8 | 0.6 | 150 | 12.5 | 9 | 16 | 34 | ||||||
| 95 | 127 | 30 | 4500 | 150 | 135 | 165 | 255 | Bi-directional | 1400 | ||||
| 95 | 127 | 30 | 4500 | 150 | 135 | 165 | 255 |
RA Applications
Pumps, Heaters & Small Motors
RA Custom Products Request
Need your RA 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.