What is the difference between DT and DTM?

DT is the standard series carrying 13–25 A per contact for general automotive and sensor circuits. DTM is a compact variant for tight spaces, with smaller 5–7.5 A contacts in the same housing footprint.

Which Deutsch DT series handles the highest current?

DTP carries the highest current — 35–40 A per contact across 2–8 cavities with 4–16 AWG wire support, designed for motors and high-current loads.

Are Deutsch DT connectors field-serviceable?

Yes — DT, DTM, DTP, and DTHD connectors use removable contacts with standard crimp tooling (e.g., DMC Daniels), wedges, and silicone seals, allowing field repair and re-pinning without special equipment.

What IP rating do Deutsch DT connectors meet?

DT family connectors are rated IP68 when properly assembled with the correct wedge, seal plug, and crimped contacts — dust-tight and resistant to continuous immersion.

What temperature range can DT connectors survive?

With silicone seals and standard contacts, DT family connectors operate from -55°C to +125°C, covering the full automotive and off-road thermal envelope.

Connector Basics

Deutsch DT Series Connector Guide: DT, DTM, DTP, and DTHD

September 2, 2026 4 min read

Tags:

#Deutsch DT connector #DTM connector #DTP connector #sealed automotive connector #wedge lock

The DT family is widely used where dust, water, vibration, and field serviceability matter. Selecting the correct family requires more than counting cavities: contact size, wire gauge, continuous current, sealing components, keying, and compatible tooling must all be checked as a system.

Quick Reference

Series	Shell Size	Contacts	Current (per contact)	Wire AWG	Best For
DT	2, 3, 4, 6, 8, 12	2–12	13–25A	12–22	General automotive, sensors
DTM	Compact	2–12	5–7.5A	16–22	Signal, compact connectors
DTP	Large contacts	2–8	35–40A	4–16	Power, motors
DTHD	High density	6–35	7.5–13A	16–22	High pin count
DT06 (socket)	2–12	2–12	13–25A	12–22	Receptacle side
DT04 (plug)	2–12	2–12	13–25A	12–22	Plug side

1. What Is the Deutsch DT Series?

Deutsch DT is an automotive-grade sealed connector system developed by Deutsch, now part of TE Connectivity. It is widely used in off-road equipment, commercial vehicles, motorsport, and marine systems that require environmental sealing and vibration resistance.

Key Features

Feature	Benefit
IP68 sealed	Dust-tight, submersion resistant
Wedge lock	Prevents contact backing out under vibration
Silicone seals	Wide temperature range (-55°C to +125°C)
Color-coded wedges	Easy assembly verification
Wipe-on cap	Seals unused cavities
Crimp contacts	Gas-tight, reliable
Mate-assist	Helps align during mating

2. DT vs DTM vs DTP vs DTHD

Series	Contact Size	Current	Wire	Use
DT	1.6mm	13–25A	12–22 AWG	The standard — sensors, actuators, power
DTM	1.0mm	5–7.5A	16–22 AWG	Signal-heavy, compact
DTP	3.6mm	35–40A	4–16 AWG	High-current power
DTHD	1.0mm	7.5–13A	16–22 AWG	High pin count, limited space

3. Naming Convention

Deutsch DT part numbers are structured:

DT06-2S-EP04
│  │  │  │
│  │  │  └─ Contact arrangement (EP04 = 4-pin)
│  │  └──── Gender (S = socket/female receptacle, P = plug/male)
│  └─────── Series (06 = socket, 04 = plug, 02/03 = wedges)
└────────── Series family (DT, DTM, DTP, DTHD)

DT06 = socket (receptacle, female cavities)
DT04 = plug (male, pins)
DT02 = socket wedge
DT03 = plug wedge

4. Contact Crimping

Deutsch DT uses crimp contacts that are inserted into the housing. Correct crimping is essential:

Parameter	Specification
Contact	Solid barrel crimp
Crimp tool	Deutsch-specific dies
Crimp height	Verified per AWG
Insertion	Push until wedge locks
Removal	Extract tool (green DTT)

The wedge lock is the safety feature: it physically blocks contacts from backing out under vibration. If a contact isn’t fully seated, the wedge won’t install — preventing assembly errors.

5. Applications

Application	Why Deutsch DT
Off-road vehicle (construction)	Vibration, dust, IP68
Agricultural machinery	Mud, water, vibration
Marine (boat)	Saltwater, submersion
Motorsport	Vibration, high G
Industrial engine	Heat (-55 to +125°C), oil
Trucks/trailers	Road vibration, weather

6. Selection and Assembly Checklist

Confirm the housing family, cavity count, contact size, wire insulation diameter, sealing plugs, wedge lock, and crimp tooling before ordering. Current ratings are system values and must be derated for wire size, ambient temperature, cavity loading, and duty cycle. After crimping, perform a pull test and verify that every contact is fully seated before installing the wedge lock.

7. GSConn Deutsch-Compatible Series

Series	Compatible With	Contacts	Current	Features
DT-S-06	DT06 socket	2–12	13–25A	IP68, wedge lock
DT-S-04	DT04 plug	2–12	13–25A	IP68, wedge lock
DTM-S	DTM series	2–12	5–7.5A	Compact signal
DTP-S	DTP series	2–8	35–40A	High current power
DT-CRIMP	DT contacts	—	13–25A	Crimp terminals, bulk

Compatibility should be confirmed against the exact housing, keying, contact, seal, and wedge-lock part numbers before mixed-brand mating or field replacement.

GSConn Deutsch DT-compatible connectors cover DT, DTM, DTP, and DTHD series with IP68 sealing and wedge-lock construction. Contacts, wedges, seals, and housings available as a complete system. Drop-in compatible with Deutsch cavity layouts.