JST connector
JST connector is an electrical connector that is manufactured by J.S.T. Mfg. Co. (Japan Solderless Terminal).[1] JST manufactures numerous series (families) and pitches (pin-to-pin distance) of connectors.[2][3]
JST connectors are commonly used by electronics hobbyists and consumer products for rechargeable battery packs, battery balancers, battery eliminator circuits, and radio controlled servos.[4]
The term "JST" is commonly and incorrectly used as a vernacular term meaning a small white electrical connector mounted on PCBs inside products manufactured from Asia.[citation needed]
Connector series
JST manufactures a large number of series (families) of connectors.[2] The PCB (wire-to-board) connectors are available in top (vertical) or side (horizontal) entry, and through-hole or surface-mount.
JST Series |
Pin-to-Pin Pitch |
Pin Rows |
Current (Amp) |
Voltage (Volt) |
Wire Size (AWG) |
Shroud | Lock | Notes | Datasheet |
---|---|---|---|---|---|---|---|---|---|
VH [5] | Yes/No | Yes | Unshrouded seems to be more popular than shrouded. | JST VH | |||||
EH [6] | Yes | No | JST EH | ||||||
XH [7] | Yes | No | Used by many R/C batteries. Not 0.1" pitch. | JST XH | |||||
PA [8] | Yes | Yes | Used by FMA Cellpro R/C battery chargers. | JST PA | |||||
PH [9] | Yes | No | Compatible with KR, KRD, CR series.[10][11][12] | JST PH | |||||
ZH [13] | Yes | No | Compatible with ZR, ZM series.[14][15] | JST ZH | |||||
GH [16] | Yes | Yes | Some people confuse with Molex PicoBlade.[citation needed] | JST GH | |||||
SH [17] | Yes | No | Compatible with SR, SZ series.[18] | JST SH |
JST Series |
Pin-to-Pin Pitch |
Pin Rows |
Current (Amp) |
Voltage (Volt) |
Wire Size (AWG) |
Features | Notes | Datasheet |
---|---|---|---|---|---|---|---|---|
RCY [19] | Locking | Used in radio control (R/C), also known as BEC or P connector. Commonly found on small models, toys, and small lipo packs. | JST RCY | |||||
SM [20] | Locking, High force | Used in some RGB LED decorative light strips. | JST SM |
Connector soldering
A majority of JST through-hole headers can't withstand the temperatures required for reflow soldering, because the plastic has a lower melting point since they were designed for wave soldering methods. Some JST surface-mount headers are designed to handle higher temperatures of reflow soldering.[22]
Connector confusion on the internet
End-users and 3rd-party sellers on eBay often describe connectors by their wrong name thus perpetuating confusion of the exact series of a specific connector. Unfortunately, it is very common in blogs and websites to incorrectly name a specific connector only by the name of the manufacturer.
To minimize confusion, it is best to describe a connector using: the manufacturer's name, exact connector series, and optionally the pitch; such as "JST-XH" or "JST-XH-2.50mm" or "2.50mm JST XH-series" or other variations.
The official J.S.T. Co. website has a tool which allows users to check certain models for their authenticity and specifications.[23]
In recent years, it is preferred to use millimeter (mm) instead of inches for pin-to-pin pitch distance. Note: Some 2.50 mm parts are incorrectly sold on the internet as 2.54 mm (0.100 in), and the 1.25 mm parts as 1.27 mm (0.050 in).
See also
References
- ^ JST Corporate Profile / History / Buildings.
- ^ a b List of JST connector series; JST.
- ^ Search by connector application; JST.
- ^ "JST" connector confusion - the real story; rcgroups blog.
- ^ JST VH-series webpage.
- ^ JST EH-series webpage.
- ^ JST XH-series webpage.
- ^ JST PA-series webpage.
- ^ JST PH-series webpage.
- ^ JST KR-series webpage.
- ^ JST KRD-series webpage.
- ^ JST CR-series webpage.
- ^ JST ZH-series webpage.
- ^ JST ZR-series webpage.
- ^ JST ZM-series webpage.
- ^ JST GH-series webpage.
- ^ JST SH-series webpage.
- ^ JST SR/SZ-series webpage.
- ^ JST RCY-series webpage.
- ^ JST SM-series webpage.
- ^ Parrot AR.Drone battery technical details
- ^ JST through-hole soldering; Official JST blog.
- ^ "Choosing the Right JST Connector". DronesEtc. Retrieved 13 August 2015.
External links
- Official
- Official website, top-level websites for 16 countries, such as America and UK.
- Official list of JST connector series
- Official training slides for JST connector series
- Other