More from Buddy RC →Aikon SEFM 20A ESC with BLHeli_S Program
$8.95$14.95Save 40%
Currently sold out at buddyrc.com
The Aikon SEFM 20A is a compact BLHeli_S electronic speed controller aimed at tight multirotor builds and lightweight racers. It runs on a 48MHz MCU with three-channel PWM output for motor control, and the firmware auto-detects the input signal protocol. It suits quad builders who want a small 20A ESC on BLHeli_S.
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Highlights
- 20A rating in a compact format for small frames
- BLHeli_S firmware with 1000 steps of throttle resolution and auto-detection of the input protocol
- 48MHz MCU with three-channel PWM output
- Low-resistance MOSFETs with dedicated drivers
- Extra capacitance to help smooth voltage spikes
Best for
Builders of lightweight racing quads looking for a single 20A BLHeli_S ESC.
Things to consider
- The listing does not state supported cell count, weight or dimensions, so confirm those against your build
- It was listed as out of stock at the time of this write-up
- BLHeli_S is an older firmware family than some current ESC options
Key specs
| Price | $8.95 |
|---|---|
| Continuous current | 20A |
| Firmware | BLHeli_S |
| MCU | 48MHz |
| Throttle resolution | 1000 steps |
Our take
An inexpensive 20A BLHeli_S ESC for small quads, best bought once you have confirmed the voltage rating with the seller.
Aikon SEFM 20A ESC with BLHeli_S Program at a glance
| Brand | Buddy RC |
|---|---|
| Price | $8.95 (was $14.95) |
| Type | Quad ESC |
| Availability | Sold out at buddyrc.com |
| Returns | Items can be returned within 30 days of receipt with an RMA code requested by email.… |
Price check
At $8.95, the Aikon SEFM 20A ESC is mid-range for Buddy RC, whose 4,520 listed products run $1 to $9,999.
It's currently 40% below its listed price of $14.95. Sale prices can end without notice, so check the live price before you order.
Frequently asked questions
What voltage does the Aikon SEFM 20A support?
The listing does not state a cell count. Check with Buddy RC before pairing it with a battery.
Does it auto-detect DShot or other protocols?
The listing says the firmware auto-detects the input signal protocol, but it does not list which protocols. Confirm with the seller if you need a specific one.
Is the Aikon SEFM 20A ESC on sale?
Yes. Buddy RC lists it at $8.95, down from $14.95 (40% off). Sale prices change, so confirm the live price on buddyrc.com.
Is there a discount on the Aikon SEFM 20A ESC?
Buddy RC publishes these ways to save: Loyalty points with an account. Buddy RC sets the terms, which can change; our Buddy RC coupons page has the details.
What is Buddy RC's return policy?
Items can be returned within 30 days of receipt with an RMA code requested by email. Returns in new condition with original packaging have no restock fee; others are charged 10 to 20%, and shipping fees are not refunded.
How long does Buddy RC take to ship?
Orders placed before 2 p.m. EST usually ship the same business day from Columbus, Ohio, by USPS or UPS, with most packages arriving in 2 to 5 business days. Orders over $100 may ship free within the US, excluding most airplanes, and LiPo batteries ship only by UPS Ground.
Does the Aikon SEFM 20A ESC come with a warranty?
Buddy RC's published warranty terms: Products older than 30 days may be exchanged under warranty but aren't eligible for a refund. Specific warranty terms aren't published in the policy text.
Where can I buy the Aikon SEFM 20A ESC?
The Aikon SEFM 20A ESC is sold directly by Buddy RC on buddyrc.com. The Shop now button on this page goes straight to the product there.
Is the Aikon SEFM 20A ESC in stock?
It is currently listed as sold out on buddyrc.com. Check back, or browse similar items from Buddy RC and other brands below.
Is Buddy RC a legit store?
Buddy RC is a strong pick for RC pilots who need specific parts, power systems or helicopter spares from a US warehouse with same-day dispatch. Skip it if you want generous returns, since shipping is never refunded and returns that aren't in new condition carry a 10 to 20% restock fee. Confirm the exact part number and motor or frame compatibility before ordering, because most of the catalog is model-specific. Our full Buddy RC review covers shipping, returns and what to check before ordering.
Is the Aikon SEFM 20A ESC expensive?
At $8.95 it is mid-range for Buddy RC ($1 to $9,999 across 4,520 products).
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