![]() With subpar tools, you're going to be pulling your hair out. Plus if the die is too wide, getting the crimp body to roll over correctly and form a proper crimp may be tricky. Because of how small they are, the relative thickness of the crimp body is quite high, so getting the right crimp pressure without a ratcheting crimper may be tricky, or at least take a lot if trial and error. Once you get it down, the magnification is only needed for inspection. I'd also highly suggest some sort of magnification for getting the hang of it initially. The insulation portion of the crimp is quite small, so 0.7mm can be the difference between not crimping the insulation at all, and having the insulation get into the conductor portion of the crimp. You're going to need a good stripper that can leave a clean edge and some very sharp cutters to trim the conductor to length without leaving a long point. And a micro fit tool definitely isn't going to work with them, they are a good bit smaller than the microfit pins. Picoblade pins and sockets are absurdly tiny, and without a holder on the tool you're going to regret the decision quite quickly. It is available from Amazon on-line and elsewhere.I'd go for the Molex tool. It works right down to JST-SH 1.00mm although they require a lot of care. The only low cost crimper I was ever able to find for these small connectors was the Engineer PA-09 Lots of clear pictures and dimensions plus useful identification tips. UPDATE 26Sep2015: Mark Christian has put up a nice guide to the common 1.00 -1.50mm pitch connectors on the MicronWings website. Note that one data sheet covers all the connectors of the same family no matter how many pins they have. I have also attached spec sheets for the connectors which have all the physical measurements. Gene has done a similar one in post 6 which adds the usage info. The attached picture of the 3 micro connectors and also the common JST balance plug shows the sizes and what they look like front and back. Vendors have had a habit of producing connectors with the wiring swapped around. You should always check the wiring polarity is also correct. Used for servo connection in Spektrum AR6400 "Brick" and the HobbyKing SuperMicro (not DSM2) systems. The 2 pin version is used on the PZ bricks as a battery connector. The HobbyKing 1.7 and 2.2g Servos have this connector. Used in Futaba, FlyDream, Walkera and the new Hobby King Micro (DSM2) 2.4G systems. Used in the Spektrum AR 6300 system and a compatible DSM2 Rx from DelTang (DelTangs are available with all 3 connectors). The standard Futaba/JR style servo plugs are this spacing. Used in most balance plugs on LiPos and is the "standard" header spacing in many electronic components including PCs. JST-XH is 2.5mm pin spacing (same as 0.1inch for all practical purposes) RC-Connectors, and Hansen Hobbies in the US and Micron in the UK are all people I can personally recommend for the servo connectors. There are a few specialist vendors that supply these small leads and/or a change over service. ![]() Soldering also works but will cause the wire to break easily if it is not also crimped at the strain relief. There are no crimping tools for ordinary folks at a reasonable price for these sizes that I am aware of (except for the one mentioned below) and very high quality needle nose pliers are the best option. ![]() Crimping the connectors is not easy but possible. This is a lot easier than changing the connectors over for most people but you need to try it and see. There is limited possibility to move the pins from one system into the shell of another (generally bigger) one, sometimes by trimming very slightly the retaining nylon tabs. Feel free to correct any errors or add any other manufacturers/items that use the common 3 small ones to add to the information base. Hobby King and others however refer to anything small and white as a "JST" connector. One of them is not even a JST connector but is made by Molex. Leaving aside the proprietary systems from Micro Invent etc I thought it might be helpful to gather in one place the info about the most common types. With the growth of more mainstream micro gear the confusion around the common "JST" connectors has grown.
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