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Waterproof Connectors (5.0mm Pitch Disconnectable Crimp Style (Wire to Wire))

  • Features
  • Specification
  • Downloads
  • Tooling
  • Samples

The WPJ Series is a 5.0mm pitch Wire-to-Wire waterproof connector. Incorporating a JST dual seal format design, this IPX7 (IEC 60529) rated waterproof connector is manufactured using UL94V-0 grade glass filled PBT, with Silicon constructed seals to facilitate ingress protection.

Initially developed for Washlet applications, this connector is compact in design and is available in waterproof and non-waterproof variations, thus providing multiple application solutions from one connector system.

The WPJ Connector is available in 2 to 3 circuit variations, with a current rating of 7Amps, 300V AC/DC Voltage and operating temperature range of -25OC to +85OC


  • Domestic Appliance
  • Automotive
  • Power
  • Vending
  • Air Conditioning

# These are a representation of some of the applications and uses of this product, and is by no means definitive.

Waterproof performance

  • Grade 7 ingress protection of JIS C 0920 (IEC 60529 IPX7)

Connector variation

  • The connector is available in four variations;
    • WPJ Connector (Waterproof Type)
    • WPJ Connector (Non Waterproof Type)
    • WPJ Connector (Wire-to-Board Type)
    • WPJ Connector (Glow Wire Type*)

* Contact JST for further details.

Secure locking device

  • The housing has a locking feature that prevents accidental disconnection due to restricted wire routing or high environmental vibration.

Highly reliable contact design

  • The crimp terminal design offers a high degree of interface performance under conditions of vibration, distortion, low voltage or low current.

Incorrect mating prevention

  • 3 different Mechanical and Colour Key Code construction.*

* Contact JST for further details.

Application Equipment

  • Hand, Semi-Automatic and Fully Automatic assembly devices are available. See Tooling tab for further details.


  • UL Recognized E60389
  • CSA Certified LR28012
  • TUV File No. R50073100
  • IEC 60529

RoHS Compliant

01 - Connection Type: Wire to Wire Connectors
02 - Product Type: Water Proof
03 - Pitch / Style: 5.00mm
04 - Current rating: 7A AC,DC
05 - Voltage rating: 300V AC,DC
06 - Temperature range: -25 to +85 Degrees Celsius
07 - Available number of circuits: 2, 3
11 - Feature: Waterproof

Full Technical Drawings

If you require full technical drawings or any other in-depth information about this product series, please contact us using the link below.

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Additional Information

This product series has some additional information related to it that you can download from the list below.

1) Catalogue Page 2) Handling Manual 3) 3D Model
Can't find a Tool?

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Applicators (Industry Standard)

Please select a tool for more information.

Industry Standard (Semi Automatic) Applicator for SWPJR-21T-M0.5 and SWPJT-21T-P0.5
Industry Standard (Semi Automatic) Applicator for SWPJR-21T-M0.5A and SWPJT-21T-P0.5A