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J599FS waterproof 38999-type connector, rendering
J599FS (representative image)
J1784FS waterproof backshell on a 38999-type connector, rendering

J599FS IP67 Waterproof 38999-Type Connectors with J1784FS Backshells

IP67 with J1784FS backshell · threaded 38999 type · rain-tested

J599FS adds a seal at the mating face of our Series III-type connector so that water cannot collect in the five key slots. Paired with a J1784FS waterproof backshell, which seals each wire with a double pressure plate, the complete connector reaches IP67. It keeps the triple-start threaded coupling, anti-decoupling and EMI shielding of the 38999 Series III type.

Coupling
Triple-start thread
Shell sizes
9 to 25
Insert arrangements
32
Contact sizes
22D to 12 (5–23 A)
Temperature
−65 to +200 °C
Protection
IP67 with J1784FS backshell

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Key features

  • Extra mating-face seal: water cannot collect in the key slots
  • IP67 for the complete connector with J1784FS waterproof backshell
  • Passes the GJB 150.8A drip (rain) test: 1.7 mm/min at 18 m/s wind
  • Triple-start threaded coupling with anti-decoupling; scoop-proof and keyed
  • EMI/RFI shielding; aluminum, stainless-steel and titanium shells
  • Lockwire-ready versions (-S) with matching screws for receptacles
  • Contact layouts can be extended to your requirements

Specifications

Sealing
ParameterValueCondition
Ingress protectionIP67Mated, with J1784FS backshells
Rain (drip) test1.7 mm/min, wind 18 m/sGJB 150.8A-2009
Insulation resistance after water immersion≥ 20 MΩ
Hermetic receptacle leak rate≤ 1 × 10⁻⁸ Pa·m³/s0.1 MPa pressure differential
Electrical
ParameterValueCondition
Dielectric withstanding voltage, service rating M1300 Vrms / 800 VrmsSea level / 21,000 m altitude, mated
Dielectric withstanding voltage, service rating N1000 Vrms / 600 VrmsSea level / 21,000 m altitude, mated
Dielectric withstanding voltage, service rating I1800 Vrms / 1000 VrmsSea level / 21,000 m altitude, mated
Dielectric withstanding voltage, service rating II2300 Vrms / 1000 VrmsSea level / 21,000 m altitude, mated
Insulation resistance≥ 5000 MΩRoom temperature
Insulation resistance≥ 1000 MΩ (non-hermetic) / ≥ 200 MΩ (hermetic)High temperature
Mechanical and environmental
ParameterValueCondition
Durability500 mating cycles
Shock2940 m/s²
Sine vibration10–2000 Hz, 60 g (140–2000 Hz), 3 × 12 hWith temperature cycling
Random vibration50–2000 Hz, 1 g²/Hz (100–2000 Hz), 2 × 8 hAt maximum temperature
Random vibration25–2000 Hz, 5 g²/Hz (100–300 Hz), 2 × 8 h
Damp heat10 cycles × 24 h
Operating temperature−65 to +200 °C−65 to +175 °C for cadmium finish
Operating altitude≤ 30,480 m

GJB 599B (Series III type) — Base design; J599FS adds the mating-face seal. GJB 1784 — Base design of the J1784FS backshells.

Values not listed above — for example vibration level, leak rate or other environmental tests — can be tested to your requirements, including third-party testing. Specifications are subject to change; contact us for the current datasheet.

Weights

Weight in grams, socket / pin version.

ShellArrangementReceptacle, stainlessPlug, stainlessReceptacle, aluminumPlug, aluminum
9 (A)4428.6 / 26.735.8 / 33.918.6 / 16.725.8 / 23.9
11 (B)0641.3 / 34.448.6 / 42.731.3 / 24.438.6 / 32.7
13 (C)1356.3 / 45.375.2 / 66.246.3 / 35.360.2 / 51.2
15 (D)2270.1 / 54.790.8 / 78.555.1 / 39.770.8 / 58.5
17 (E)3795.3 / 75.5100.2 / 85.580.3 / 60.575.2 / 60.5
19 (F)42103.2 / 78.9138.1 / 103.883.2 / 88.9108.1 / 73.8
21 (G)55125.7 / 94.6142.7 / 114.6100.7 / 70.6112.7 / 84.6
23 (H)66145.8 / 106.7165.2 / 128.1115.8 / 76.7135.2 / 93.1
25 (J)79165.3 / 120.7185.6 / 141.5125.3 / 80.7145.6 / 101.5

Stainless steel K and S weigh the same; aluminum W and F weigh the same.

Versions

Series codeVersionNotes
J599FS/20Square-flange receptacle
J599FS/26Plug
J1784FS/38, /39Waterproof cable-clamp backshell, straight / 90°For J599 connectors; metric M12 × 1 to M37 × 1 thread; finishes to match the connector
J1784FS/88, /90Waterproof shielded backshell, straight / 90°For J599 connectors; optional band ring for 360° shield termination
J1784FS/49, /47Waterproof cable-clamp backshell, straight / 90°For JY27 (Series I and II) connectors; UNEF thread
J1784FS/85, /87Waterproof shielded backshell, straight / 90°For JY27 (Series I and II) connectors

Shell materials and finishes

CodeShell materialFinishShell conductivityEMI shieldingTemperatureSalt spray
W (B)Aluminum alloyOlive-drab cadmium2.5 mΩ50 dB at 10 GHz−65 to +175 °C500 h
FAluminum alloyNickel1 mΩ50 dB at 10 GHz−65 to +200 °C96 h
KStainless steelPassivated50 mΩ—−65 to +200 °C500 h
SStainless steelNickel1 mΩ—−65 to +200 °C500 h
TATitanium alloyNone10 mΩ65 dB at 10 GHz−65 to +200 °C500 h

Contact sizes and current ratings

Contact sizeEngaging diameterContact resistanceContact resistance (hermetic)Current ratingWire size
22D0.76 mm≤ 14.6 mΩ≤ 28 mΩ5 AAWG 22–26 (0.13–0.33 mm²)
201.02 mm≤ 7.3 mΩ≤ 12.0 mΩ7.5 AAWG 20–24 (0.20–0.52 mm²)
161.58 mm≤ 3.7 mΩ≤ 8.5 mΩ13 AAWG 16–20 (0.52–1.31 mm²)
122.41 mm≤ 1.83 mΩ≤ 5 mΩ23 AAWG 12–14 (2.08–3.31 mm²)

How to order

J599FS/ [type] H [finish] [shell] [arrangement] [contact] [key] [suffix] -[lockwire]

Example: J599FS/20HWB06PNR2-S — Square-flange receptacle, olive-drab cadmium, shell B (size 11), arrangement 11-06, pin contacts, key N, two pairs of thermocouple contacts, lockwire version with M3 × 12 screws

Code segmentOptions
Type
  • 20 Square-flange receptacle
  • 26 Plug
H
  • H Waterproof version (always present)
Finish
  • W (or B) / F Aluminum — olive-drab cadmium / nickel
  • K / S Stainless steel — passivated / nickel
  • TA Titanium alloy
Shell
  • A B C D E F G H J Shell size 9, 11, 13, 15, 17, 19, 21, 23, 25
Arrangement
  • e.g. 06 See the insert arrangement table below
Contact
  • P / S Pin / socket
Key
  • N A B C D E Key positions
Suffix
  • V Fluorosilicone seals (oil resistant)
  • Rn n pairs of thermocouple contacts
Lockwire
  • -S Plug or receptacle, receptacle with M3 × 12 screws
  • -S08 / -S14 Receptacle with M3 × 8 / M3 × 14 screws
  • -SC / -S10C Receptacle with M3 × 12 / M3 × 10 countersunk screws

Backshell example: J1784FS/88-HW1522S01 — straight shielded backshell for J599, olive-drab cadmium, shell 15, arrangement 15-22, socket side, wire range 01. Wire range 01 or 02 is chosen from your wire insulation diameter (Ø 1.04–3.63 mm across all sizes).

Insert arrangements

32 standard layouts, viewed from the mating face of the pin insert. The arrangement number is written as shell size – layout (for example 25-35). The service rating sets the withstanding voltage (see specifications).

32 layouts

ArrangementContactsContact sizesService rating
9-0333 × size 20I
9-4444 × size 22DM
9-9833 × size 20I
11-0222 × size 16I
11-0444 × size 20I
11-0555 × size 20I
11-0666 × size 22DM
13-0333 × size 16II
13-0888 × size 20I
13-131313 × size 22DM
15-04A44 × size 12M
15-0555 × size 16II
15-06A66 × size 16M
15-181818 × size 20I
15-222222 × size 22DM
17-0888 × size 16II
17-262626 × size 20I
17-373737 × size 22DM
19-111111 × size 16II
19-323232 × size 20I
19-424242 × size 22DM
21-161616 × size 16II
21-242424 × size 20I
21-252525 × size 20I
21-272727 × size 20I
21-555555 × size 22DI
23-991111 × size 16II
23-323232 × size 20I
23-666666 × size 22DM
25-292929 × size 16I
25-616161 × size 20I
25-797979 × size 22DI

Typical applications

  • Outdoor rail and transit equipment
  • Wind, solar and energy systems
  • Construction and agricultural machinery
  • Outdoor telecom and surveillance equipment
  • Marine deck electronics

Frequently asked questions

Is J599FS IP67 on its own?

The IP67 rating applies to the complete connector: J599FS plug and receptacle mated, with J1784FS waterproof backshells sealing the wire entry. Standard backshells do not seal each wire.

How is J599FS different from a standard 38999 Series III connector?

A standard connector can hold water in the key slots at the mating face. J599FS adds a seal there, and the J1784FS backshell seals each wire with a double pressure plate.

Can I get other insert arrangements?

Yes. The listed layouts are standard; other layouts can be added to your requirements.

Selection guides

From sample to production

  1. Send your requirement

    Part number, drawing, pin-out or a short description of your application.

  2. Configuration and quote

    Our engineers match the configuration and reply with a drawing and quotation.

  3. Samples

    Samples are made to your order. Third-party testing to your specification is available on request.

  4. Your approval

    You test the samples in your own equipment and approve them.

  5. Series production

    Production follows the approved sample configuration.

Need a quote or a drawing?

Send your part number, pin-out or drawing. An engineer will reply by email.

Request a quote

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