Deutsch connectors are a family of rugged electrical connectors designed for harsh automotive, marine, and industrial environments. Originally developed by Deutsch (now part of TE Connectivity), these connectors are known for their reliability, weatherproof sealing, and resistance to vibration, corrosion, and extreme temperatures.

Deutsch connectors feature:

• Sealed design with environmental protection (IP67/IP68 ratings)
• Positive locking mechanisms
• Color-coded housings for easy identification
• Wide temperature range operation (-55°C to +125°C)
• Vibration and shock resistance
• Multiple contact arrangements

The most common series, widely used in automotive and heavy-duty applications.

Compact version of the DT series for space-constrained applications.

Panel-mount versions with threaded coupling nuts.

High-current applications with larger contact sizes.

 1   2
 o   o

   1
   o
2  o  o 3

1 o   o 2
   \ /
    X
   / \
4 o   o 3

  1 o   o 2
     \ /
3 o   X   o 6
     / \
  4 o   o 5

1 o       o 2
   o     o
3    o o    6
   o     o
4 o       o 5
     8 7

    1 o   o 2
  12 o o o o 3
       | |
  11 o | | o 4
       | |
  10 o o o o 5
    9 o   o 6
        8 7

Deutsch connector part numbers follow a specific format:

DT[M][HD]SS-NNX[-YYYY]

• DT: Deutsch Truck series identifier
• M: (Optional) Miniature version
• HD: (Optional) Heavy Duty version
• SS: Shell size (04, 06, etc.)
• NN: Number of positions
• X: P = Pin/Plug, S = Socket/Receptacle
• YYYY: (Optional) Additional specifications

• DT04-4P = DT series, size 04, 4-pin plug
• DT06-6S = DT series, size 06, 6-socket receptacle
• DTM04-2P = DTM series, size 04, 2-pin plug

• Use proper Deutsch crimping tools (e.g., HDT-48-00, M22520/5-01)
• Follow manufacturer's crimp specifications
• Inspect crimps for proper formation and retention

1. Insert crimped contacts into connector housing
2. Ensure contacts are fully seated and locked
3. Apply dielectric grease to mating surfaces
4. Install wedge or position assurance device
5. Mate connectors with firm, straight motion
6. Verify positive lock engagement

• IP67 rating when properly mated
• Use appropriate cable seals and grommets
• Apply dielectric grease for corrosion protection
• Ensure proper strain relief on cables

• Engine management systems
• Lighting circuits
• Transmission controls
• ABS/traction control
• HVAC systems

• Navigation equipment
• Bilge pump controls
• Engine instrumentation
• Lighting systems

• Heavy machinery
• Agricultural equipment
• Construction vehicles
• Mining equipment
• Rail applications

• SAE J1128: Low Voltage Primary Cable
• SAE J1939: Heavy Duty Vehicle Network
• IEC 60529: IP Rating classifications
• ISO 8092: Road vehicles - Connectors

• Check for corrosion, damage, or contamination
• Verify proper contact retention
• Test continuity and resistance
• Inspect cable strain relief

• Use isopropyl alcohol for cleaning contacts
• Apply fresh dielectric grease after cleaning
• Replace seals if damaged or deteriorated

• Store in original packaging when possible
• Keep in dry, temperature-controlled environment
• Protect contacts from contamination