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Deutsch DT 12-Pin — Specs and Wiring Guide

The Deutsch DT 12-pin is the highest pin count in the standard DT family. It consolidates up to twelve circuits into a single sealed connector, making it the preferred choice for complex harness breakouts, ECU interfaces, and multi-sensor nodes in heavy equipment and automotive aftermarket builds. Aftermarket ECU installations commonly use the DT 12-pin as a bulkhead connector between the engine bay and cabin, carrying injector triggers, coil drives, sensor inputs, and power feeds through a single sealed disconnect. Heavy equipment manufacturers use it for joystick controller harnesses and multi-function valve body wiring. The DT 12-pin is also popular for full vehicle front lighting harnesses where headlights, fog lights, turn signals, and daytime running lights all terminate at one connector behind the bumper or fender.

Specifications

Pin Count12
Wire Gauge Range20–16 AWG
Voltage Rating13.5 VDC
Current Rating13A continuous
IP RatingIP68
Mating Cycles100
Operating Temp-55°C to +125°C

Key Features

  • Environmentally sealed to IP68
  • Twelve cavities — the largest standard DT configuration
  • Wedgelock retention system
  • UV and chemical-resistant thermoplastic housing
  • Polarized keying with a robust latch mechanism
  • Drop-in replacement across multiple suppliers

Compatible Terminals & Components

ComponentPart Number
DT Size 16 Socket Contact0462-201-16141
DT Size 16 Pin Contact0460-202-16141
DT 12-Pin WedgelockW12P
DT 12-Pin Plug (housing)DT06-12S
DT 12-Pin Receptacle (housing)DT04-12P

Frequently Asked Questions

Other DT Series Connectors