HobbyKing 2.5g / .17kg / .12sec Micro Servo

 kontakos 227 points

They do fit directly on the Spektrum AR6300.

 sweetstik 55 points

Hi. I bought some suitable leads from HK and replaced the provided servo leads. Will avoid these servos in future.

 davereap 4 points

There is a complete mess up with most of these micro servos... 3 socket sizes and the wires going to different pins..
Its a pain to have to swap leads or wires about.. unfortunately a lot different rx's have different wiring setups...I wont avoid the servos because likely they will work ok.. I am just trying to get my gear standardised so I can simply plug and play

 bambooflyer 2 points

Micro-JST is misunderstanding JST-XH series 2.5mm (standard size like balancer) JST-ZH series 1.5mm (AR-6300 or other micro-Rx) JST-SH series 1.0mm (AR-6400) Polarity also differs, the wire's colour may help. For samples and more discussion have a look * RCGroups. NB: 1.25mm of Micro-1S-Lipos is MOLEX pico blade series, no "Japan Standard".

 davereap 4 points

dont avoid the servos, change the leads to fit your rx, its easy enough..the servos are good litle things...

 Mr wizzard 105 points

i soldered 1 half of an extension to the reciver for some servos. some i went without connectors at all the wires looking at rec antena to you go black/brown then red then white/other hope this helped

 Mr wizzard 105 points

if you solder you can save weight on the wire and connector

 davereap 4 points

unfortunately there are a lot of variations in these tiny connectors, and the orientation of the wires.. they look the same but they are not... first you will have to buy the correct size plugs, then make sure they get wired into the correct positions.. I find this a pain.. its about time they were standardised...

 davereap 4 points

Ive been buying the various size plugs and fitting the correct size... its a 1.25mm for the micro orange rx... but make sure you follow the polarity for the plugswhich is shown on the rx..the lead fitting can be worked out of the plug and repositioned easily

 Mr wizzard 105 points

the wire the con all weight you dont need cutthem to length an soilder them to the receiver. if you remove 3/4.oz from a 3.oz aircraft this greatly reduces flying weight.ASD WE ALL KNOW WHAT THAT MEANS.

 Mr wizzard 105 points

change conector

 Fredrik 6 points

No, nylon.

 doddsy01 13 points

No there not all nylon gears

 rcflyboynj 48 points

These are great servos! Just change the plug. ~ Nathan

 Matheus 5 points

what type of plane are you building , or will use it??

 cr8tive_leo 177 points

They will, only if you change the connector from jst to jr or futaba type. These can be used with up to a 6v supply.

 Kai 17 points

you have to cut off the plug and solder the cable 1 to 1 on the new one. Use the self with Futaba. white = data, red = 5 volts (6 max), black = earth, minus. The cables are very thin so be careful when stripping. An adapter is not it.

 Mike Vos 20 points

Yes it will work. just change connector.

 k.smith459 52 points

heres a link www.link Pls :D

 AndruRC 8 points

Do not take others which can be heavier.

 Dreamcatcher 49 points

Why an alternative ? they are available and excellent

 olisoft 154 points

No, It'll fry.

 Jeff 28 points

Are there any here that are JST plugs and can take 2s??

 Jeff 28 points

I need to be able to use 2s batteries with these type of servos... Shouldn't my Rx limit the out put of the power to the servos though??? I am so confused. I have both the nano orange Rx from here, and the nanolite Rx from $pektrum They use the little JST plugs. I need to be able to use servos with them, and a 2s battery. What servos will work??

 olisoft 154 points

Isn't it possible for you to use a external BEC? Or bec in a ESC? Normally the micro servos aren't made to work with more than 5V pover supply. Your receiver doesn't make anything with the voltage.

 Sevick 9 points

4.8v/6.0v from spec. So yes, it will works fine anyway (really you plug it into receiver and get 5v from your ESC)

 Jose Manuel 8 points

Just change the connector for a standard.

 Mike Vos 20 points

Best is to replace the connector with std connector if your receiver is not compatible.

 alisson 20 points

Get a old 9g servo, unmount the conector, take the wire off, and do the same with the servo conector. So you mount the 2,5g servo in the standard conector. Just look that the wire sequence is diferent, but the colors will guide you.

 Christian 5 points

very pleasant and effective servo. Used in a wood scale piper J3 (West Wing) no problem and very good use.

 Dreamcatcher 49 points

That's what i've done too. Nice little light servo, works very well and rather sharp for the size.

 rizka 90 points

***please credit the customer if you are satisfied with the answer***

 Lori 4 points

you need to get product ID AM-1021Bx10 cut off the old connectors and put these on.

 all4smallrc 12 points

They are micro jst connectors. They are standard for micro receivers. Your best option is a $pektrum AR6300. This receiver will work as well. www.link

 JoelP 9 points

Works e.g. with this www.link just changed the plugs and use it with my normal receiver though. It's a very light servo...

 THIERRY 56 points

Hi,

Micro jst plug like $pektrum.

You need change this if you want to use it with another reciever.

 genisis1 18 points

the plugs are jst type but they can be changed to standard jr/futaba plug....vahe had several of these servos and they are awsome for the price!!!!

 Hansc 373 points

Thanks for the feedback!

 Mikgus 6 points

* red positive, Black ground, Grey data

 boostoman 315 points

yes that's correct

 AdrenaCo 135 points

Red is (plus), Black is - (negative) and the grey one is the pulse.

 Ladul 17 points

My looks and working second season good after many and many crashes :)

 Certifier 23 points

red= voltage Black= ground Grey= signal

 mrfourtysevenman 128 points

yes. i imagine it will fit into a regular receiver. the pinout is
|Signal||ground||positive|
the black wire is on the rightmost side of the receiver.
if not you can just
1) take a T-pin
2)put it on the exposed part of the metal connector and pusk
3)pull out wire and gold plated pin
4) insert into a futaba connector.
if that doesnt work or it does not fit just hotwire a connector.

 kartopla 13 points

Yes, grey is the signal, and the rest speak for themselves

 trroadster 66 points

The idea here is light weight so they have micro connectors. The ultra light $pektrum AR 6200 RX has this type of connector. There are adaptors available to convert to standard servo/rx connectors. Or you can buy standard ends and change them out.

 Andrea 11 points

Just cut the original connector and solder a new one *)

 all4smallrc 12 points

These are meant to be used with a receiver like the AR6300 that has micro jst connectors on it. You can change the connector, but I believe regular jst connectors have a different wire order, so be careful to get it right.

 donaldsnephew 152 points

Sorry, I meant this servo: www.link blue arrow has bigger connectors and does not fit to Walkera.

 Vladimir Klubov 26 points

Have you read instruction? I think you should reverse some leads.

 donaldsnephew 152 points

Hi, I will try to do (got this answer for the other servo, too). My servos did not come with instrudtions, despite its written "Servo comes with accessories, instructions and a full warranty".

 chmel 1 points

What is your receiver?

 toliver66 5 points

The plugs do not fit to Walkera receiver. If you forced it, you broke it.

 chmel 1 points

Yes, compatible with.

 MegaTesla 576 points

Price dropped!! THANKS for listening!!

 maukabud 408 points

Yay...now if they'd only keep em in stock lol!

 MegaTesla 576 points

Price dropped again. Thanks HK!!

 NitroCharged 303 points

Sweet stuff HK! Now they are getting affordable to use in all our micro models. :-))
I greatly appreciate the price cut made!

 max-nix 111 points

According to the BP web site the BA-TS-2.5 servo is out of production and is replaced by the similar Blue Arrow S0251 www.link Arrow BA-TS-2.5 Micro Servo with White Micro JST Connector (White-Black-Red) - DISCONTINUED
Updated by Blue Arrow to the S0251 Servo

This is the latest version of the popular 2.5 gram Blue Arrow servo. Polarity is the same Signal - Negative - Positive (orange/black/red)as the previous version. The servo lead has Micro JST style connectors which are used in JR, Specktrum, Corona, Blue Bird, Blue Arrow, ZX Technology, RC Mart, Microbatics, Plantraco Micro9 Servo, JMP, Wes-Technik, and GWS micro equipment. These servos are designed for small ultra light airplanes (less than 2 ounces). www.link explains the stock -148 situation?

 maukabud 408 points

oops, nevermind, it's in the instructions.

 Smeagle 293 points

I will remove pins from ASSAN 4Ch RX and cut connector and solder directly to save some weight.

- Oliver

 maukabud 408 points

I'm going to be using a Corona RS400 72mhz micro receiver, which has the JST plugs. The ESC that came w/ the mini Yak54 is standard size, so I have to change it to a JST and match up color coding.

 Cristian 20 points

I changed every small connector to regular servo ones. A bit heavier but will work.

 tronchaviones 824 points

You can make it 0.28 grams lighter by eliminating the stickers (0.03g), the retainer (0.07g) and the bottom of the case (0.18g). The lower body of the Yak54 will support the guts of the servo, but the static discharges from the foam may hurt the circuits, and the vibrations will hurt the solder joints (maybe a piece of adhesive tape could help). Anyway, the stickers and retainer are an easy and safe 0.1 grams to save.

If you plan to eliminate the connector-and-wire and solder your own wires, you can save the difference between your wires and the original one (0.40 grams).

Just for the record, the stripped and unwired servo without arm and bolt weighs just 2.43 grams, versus the 3.26-3.33 of the minimum functional configuration.


> Any tips to get better service life?
err... maybe "don't strip it down"? :p

 maukabud 408 points

LOL! :D

 boredom.is.me 88 points

I could understand my question not being answered. I just asked it. But I'm sure the questions above have been here for months. Hobbyking, would that be your responsibility? (currently 2:55pm, message posted around 12pm)

 Daniel 27 points

I'd use .020 carbon rod and heat shrink .032 for the servo and horn ends. Support the .020 every 3-4" with a 1/4" section of coffee stir stick. Works well for me.

 tronchaviones 824 points

They fit tightly a 0.9 mm rod (0.035 inches)

 Hansc 373 points

soon, get a notification on it

 indoorheli 87 points

You can get 6 inch leads from bphobbies.

 Hansc 373 points

It would be hard to get them all the exact same size. If it really is very short you probably got an erratic item.