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> Servos & Parts > Micro Servo 5-10g


HXT900 Micro Servo 1.6kg / 0.12sec / 9g

HXT900 Micro Servo 1.6kg / 0.12sec / 9g
HXT900 Micro Servo 1.6kg / 0.12sec / 9g

HXT900, one of the most famous and the best value micro servos available.
Used by tens of thousands of hobbyiests world wide. The HXT900 is the #1 trusted low cost 9g servo.

• Plastic Bushing
• 25cm wire
• Coreless motor
• Servo arms & screw included

Size : 21x12x22 mm / 0.74x0.42x0.78 in
Voltage : 3v ~ 6v
Weight: 9g / 0.39oz
Speed : 0.12 sec/60(4.8V)
Torque : 1.6kg-cm
Working Temp : -30C~60C
Gears: Nylon White type

Note: Due to customer demand we have changed back to the original white gear HXT900.

These servos can be found on eBay and other asian sellers at close to this price, however be warned, they do not contain Taiwan/Japan components. HexTronik (the manufacturers of these servos) have two standards, one is for local sale, and the other is export quality with imported connectors and resin gears from Taiwan and Japan.
Our HXT500 and HXT900 are export only, and not built for the domestic market. You will not find the same quality servo for less, anywhere!


Weight (g) 9
Torque (kg) 1.6
Speed(Sec/60deg) 0.12
A(mm) 29
B(mm) 23
C(mm) 26
D(mm) 12
E(mm) 32
F(mm) 16
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Customer Data

Weight: 19g
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Price  $2.69

  • HXT900 (POM) Replacement Servo Gear Set

    Combo Price: $0.75   IN STOCK

Further discounts available for registered & logged-in customers.

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 Customer rated
Total of 642 discussions.
taifou  2 points - 10/21/2015
can these servos work for a plane that has a weight of 1500grams
 Jakob L Hansen 38 points
Yes, but mostly depends on the size of the control surfaces. But you should be fine - we use these everywhere :-)
 hanafi 141 points
you better go with 2kg torque metal servo, just imagine if you plane dive and make turn and hit 2G you plane will have twice it weight, this servo may work but it will work in extremely condition and will make it easy to broke. 1.6kg you see on description was mean to stall rate, it's not good to play near that rate.
 RonRC 4226 points
My F-22 weighed in at 1000g and used only two of these for the Elevon control surfaces (about 7 inches by 4 inches each). They worked great. I did some quick snap loops after gunning it and one time it tore a half moon on the elevon around the control horn but the servo was fine. This F-22 reached a speed of 88mph and these servos handled it well.
 Kevin 2 points
Love these servos, great for anything small, I have not had one fail me yet!
Ronald  2 points - 8/12/2015
I have used this servo on all my Flite Test planes and it has never failed me to this day(over a year). Such a great deal at this price and size. would recommend for any small size foamy.
 RonRC 4226 points
Hi Ronald, I had some I stripped out by trying them on a tricopter and crashing. So, I used the spare parts to make two good servos and used those on a scratch built gimbal. They worked GREAT! Just don't try them for the tail servo on a tricopter unless you never intend to crash.. Ha ha!
Gary1698  1 points - 8/10/2015
I've got these on two Coreflute planes I've made, they are really good and have been through some heavy landings and crashes. The only time I've broken these is by trying to make adjustments to push rods while they were powered up. The motor is so powerful it stripped the gears trying to keep the arm in position. Replacement gears are cheap and easy to install too.
 Ral fRotten 2342 points
They always strip gears, these are very poor servo's the turnigy 9g are better than these, they don't strip the teeth!
Electric Power  707 points - 6/15/2015
use these servo in many planes, some with 300 flights on them. Perfect rock solid servo
 Napstr 1263 points
I would concur with that - have heaps of these in many models giving great service every time - they are my go to reliable servos - I replace the hobbyking branded servos in the plug and fly models with these as the cases are the same size and I can rely on these
 hanafi 141 points
more like a review than a question. :)
 Ral fRotten 2342 points
300 flights a? do you people keep note books? LOL!
derek  2 points - 6/11/2015
I plan on using about 12 of these servos for an up coming project, about how much current do these draw and would a 6.0v 5000mAh battery pack work well to directly power all 12? Would a battery like this one work:
 DR01D 121 points
I just did some tests. They draw about 400mA under a heavy load. It can draw up to 1A if I force it to bind. I think that battery pack would be sufficient.
 Ral fRotten 2342 points
These are low quality servo's, prone to stripping gears, don't rely on them.
Customer Reviews
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Overall Rating
456 thumbs up!
One of the best and MOST HOT selling servos... These come into stock and within 3 days are again out of stock... HOT SELLING Item. The performance of this servo is extremly good and fast. Very accurate and there are no centering issues. The gears are resin/plastic and for the money totally worth it.
I have been using these on my foamies for a long time now. A bit noisy but torque is good. Highly recommended. Buy them before they go OUT OF STOCK AGAIN.

20 comments. Reply..

Overall Rating
Anders Höglund
129 thumbs up!
These gems are fast and strong, a bit noisy perhaps.

There is a downside of beeing strong and fast, they draw quite a bit of current.
I measured about 550mA when exercising one HXT900 without load. This is an average, it seems to require more peak current. If used together with a linear BEC it will cause voltage drops.

I tried 2 HXT900 with a 1.5A BEC and a Spektrum AR6200 Rx. I could not exercise those two without loosing power to the Rx and cause it to a "BrownOut Reboot".
With four servos connected, I could not even touch the control stick. The BEC circuit also got so hot it melted its plastic sleeve. Still works though, did not fail completely.

I tried with a larger ESC, having a 2A linear BEC, and it worked much better. But I could still force a "brownout reboot" by wildly excerise all four servos. I dare not fly my Pitts this way.

So, with four servos or more and an AR6200 Rx, I think you must use a larger switch mode BEC capable of 3A at least.

This is a combined problem of high current surge, poor power supply and voltage sensitive Rx. And maybe poor filtering of the powerline.
Not really a problem with the servos as such.

27 comments. Reply..

Overall Rating
Anthony Manti
84 thumbs up!
Alot of flyers in the area are just loveing these. Similar, and in some aspects superior performance to the famous HS-81 at one quarter the price.

Here's some stats from the forums here at Hobby City:

Results in degrees/sec.:

@4.8V 450
@6.0V 560
Results in sec/60degrees.:

@4.8V 0.13


Torque Centering
1.3 .2

3 comments. Reply..

Overall Rating
Quinton Marais
77 thumbs up!
These HC babies kick Hitec HS-65HB's into the weeds starting with a massive 6:1 price ratio saving and ~identical physical size26.8hx23.2Lx12w mm at 9g. They use their own horn spine type however and good quality copper servo wire, and make a similar noise. My tests show very slightly higher power drain than a HiTec HS-65HB
@4.8v smooth flying/hard reversals/stalls @/speed
HXT900 160ma/290ma/690ma/0.14-60° (side-by-side with Hitec)
HS-65HB 135ma/260ma/545ma/0.14-60°
I have bought more than 30 of these and never did one give a problem with normal park flying/crashes and they work fine at 6v but be aware the current will rise to 190ma/370ma/690ma for your BEC. This servo allows you to own and operate 6 models where Hitec would limit you to one model. You decide. My recommendation is get more for less - they are basically the same spec. Sure we all have a few models that we like to run expensive servos on, but these HXT900 are the base to build a big pyramid on, and spend the money you save on buying more airplanes and helicopters. I don't consider them anything like a HS55 which = HXT500. 5 star performance for a 10 star price.

6 comments. Reply..

Overall Rating
62 thumbs up!
These are really nice servo, and you get seven of them included shipping, for the price of one in Portugal.
These servant are fast and very accurate, and the price is fantastic.
Five stars.

8 comments. Reply.. here to see all reviews
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