FETtec Spike Absorber
Out of stock
The FETtec Spike Absorber uses well-chosen TVS-Diodes to prevent the connected components from huge voltage spikes. The Spike Absorber is meant to be used in addition to an electrolytic capacitor. The capacitor can be mounted directly on top of the board.
It will take care that the voltage doesn't rise above a specific level. Which means it absorbs energy once the specific voltage level is reached.
On electrical power systems using brushless motors, ESCs, and LiPo batteries, high current and voltage peaks are common. The most known way to keep them in areas where they don't damage items that are connected to the battery is the usage of capacitors. Capacitors dampen any movement of the voltage. They store energy if the voltage rises and supply it when the voltage falls. But in some cases, there are very short but high voltage spikes where capacitors are too slow. These spikes are mostly very short and appear in the area of some nano microseconds, but can easily be doubled or triple the normal battery voltage.
Most consumer electronics can survive a lot of these spikes, even if they are over their normal voltage rating, but if the spike is too strong, or it happens over a longer period, voltage regulators, capacitors and FETs can be damaged and fail. The Spike Absorber will absorb the energy of these spikes before they get in areas where gear might get damage.

The Spike Absorber absorbs voltage spikes so that damaging voltages are not reached at all.

Includes
- 1 x FETtec Spike Absorber
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Product Specifications
Product Specifications
What's Included
What's Included
Shipping & Returns
Shipping & Returns
Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
Returns: We are happy to accept returns at Rotor Riot. As long as your item qualifies based on the guidelines below, you can print out a return form, fill out the requested information, and send the items back to us with the return form included. Once we have the package we will verify that the below guidelines are met, and then issue your refund.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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How long does it take to process an order?
How long does it take to process an order?
Orders are typically processed within 1–2 business days. You will receive a confirmation email with tracking details once your order has been shipped. Please note that processing times may be slightly longer during high-demand periods or sales events.
Do you ship internationally?
Do you ship internationally?
Yes, we offer international shipping to most countries. Shipping rates and delivery times vary depending on the destination. Any applicable customs duties or taxes will be the responsibility of the recipient.
What is your return policy?
What is your return policy?
We are happy to accept returns at Rotor Riot. As long as your item qualifies based on the guidelines below, you can print out a return form, fill out the requested information, and send the items back to us with the return form included. Once we have the package we will verify that the below guidelines are met, and then issue your refund. If you received an incorrect item, or if your item is defective it is not a return, and you will need to contact customer support to open a ticket. If you have any further questions about how this process is handled please contact customer support for details.
- An item is eligible for return if it is new and unopened. This means that all of the original manufacturer’s packaging is still intact.
- Returns need to be shipped back to us within 15 days of receiving the items for a full refund. After this time you will only be eligible for store credit. (All DJI Avata Bundles must be returned within 7 days)
- Refunds are only issued after the item has been received and processed by our staff. This can take up to 3 business days after we receive the package.
- Once a refund is approved you will be notified by email. Please allow up to three days for this to be processed by your banking institution.
- Built-to-order drones that are returned are subject to a 25% restocking fee. If an order is returned to us due to customs or import fees not being paid the items are subject to a 25% restocking fee.
- Returns will always go back into the account that was used at checkout.

