JST connector

Source: Wikipedia, the free encyclopedia.
2.50 mm JST-XH top-entry (vertical) male PCB connectors

JST connectors are electrical connectors manufactured to the design standards originally developed 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 used in many types of products, and commonly used by electronics hobbyists and consumer products for

3D printers, and radio controlled servos.[4]

The term "JST" is sometimes incorrectly used as a vernacular term meaning any small white electrical connector mounted on PCBs.

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.

Wire-to-board connectors
JST series Pin-to-pin pitch Pin rows Current
(Amp)		 Voltage
(Volt)		 Wire size
(AWG)		 Shroud Lock Notes Datasheet
VH [5]
3.96 mm (0.156 in)
1
10
250
22 to 16
Yes/No Yes Unshrouded seems to be more popular than shrouded. JST VH
RE [6]
2.54 mm (0.100 in)
1
2
250
30 to 24
No No Similar to female
"DuPont" connectors and male pin headers. RF series is double row.[7]
 JST RE
EH [8]
2.50 mm (0.098 in)
1
3
250
32 to 22
Yes No Not 0.1-inch pitch. JST EH
XA [9]
2.50 mm (0.098 in)
1
3
250
30 to 20
Yes Yes Not 0.1-inch pitch. JST XA
XH [10]
2.50 mm (0.098 in)
1
3
250
30 to 22
Yes No Not 0.1-inch pitch. Used by many radio control (R/C) batteries. JST XH
PA [11]
2.00 mm (0.079 in)
1
3
250
28 to 22
Yes Yes Used by FMA Cellpro R/C battery chargers. JST PA
PH [12]
2.00 mm (0.079 in)
1
2
100
32 to 24
Yes No Many
stepper motors. Compatible with KR (IDC), KRD (IDC), CR (IDC) series.[13][14][15]
 JST PH
ZH [16]
1.50 mm (0.059 in)
1
1
50
32 to 26
Yes No Compatible with ZR (IDC) and ZM (crimp) series.[17][18] JST ZH
GH [19]
1.25 mm (0.049 in)
1
1
50
30 to 26
Yes Yes Not 0.05-inch pitch. Sometimes confused with Molex PicoBlade.[20] JST GH
SH [21]
1.00 mm (0.039 in)
1
1
50
32 to 28
Yes No Compatible with SR (IDC) and SZ (IDC) series.[22] JST SH
Wire-to-wire connectors
JST series Pin-to-pin pitch Pin rows Current
(Amp)		 Voltage
(Volt)		 Wire size
(AWG)		 Features Notes Datasheet
RCY [23]
2.50 mm (0.098 in)
1
3
250
28 to 22
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 [24]
2.50 mm (0.098 in)
1
3
250
28 to 22
Locking, High force Used in some
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.[25]

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. 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.[26]

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).

Gallery

  • JST PH 2-pin right-angle through-hole PCB.
    JST PH 2-pin right-angle through-hole PCB.
  • JST PH 2-pin right-angle surface-mount PCB.
    JST PH 2-pin right-angle surface-mount PCB.
  • JST RCY 2-pin.
    JST RCY 2-pin.

See also

References

  1. ^ "JST Corporate Profile and History". JST. Archived from the original on 27 November 2016. Retrieved 13 June 2017.
  2. ^ a b "List of JST connector series; JST". Archived from the original on 2020-11-12. Retrieved 2013-08-31.
  3. ^ Search by connector application; JST.
  4. ^ "JST" connector confusion - the real story; rcgroups blog.
  5. ^ JST VH-series webpage.
  6. ^ JST RE-series webpage.
  7. ^ JST RF-series webpage.
  8. ^ JST EH-series webpage.
  9. ^ JST XA-series webpage.
  10. ^ JST XH-series webpage.
  11. ^ JST PA-series webpage.
  12. ^ JST PH-series webpage.
  13. ^ JST KR-series webpage.
  14. ^ JST KRD-series webpage.
  15. ^ JST CR-series webpage.
  16. ^ JST ZH-series webpage.
  17. ^ JST ZR-series webpage.
  18. ^ JST ZM-series webpage.
  19. ^ JST GH-series webpage.
  20. ^ JST Is Not A Connector
  21. ^ JST SH-series webpage.
  22. ^ JST SR/SZ-series webpage.
  23. ^ JST RCY-series webpage.
  24. ^ JST SM-series webpage.
  25. ^ JST through-hole soldering; Official JST blog.
  26. ^ "Choosing the Right JST Connector". DronesEtc. Archived from the original on 4 March 2016. Retrieved 13 August 2015.

External links

Wikimedia Commons has media related to JST connector.
Retrieved from "https://en.wikipedia.org/w/index.php?title=JST_connector&oldid=1227084852"