Deutsch DT Series 3-Pin Waterproof Connector – DT04-3P Male & DT06-3S Female

The Deutsch DT 3-pin connector is one of the most widely used configurations in the DT series — providing three sealed circuits for power + ground + signal, three-phase sensor wiring, or any three-wire device connection. The 3-pin layout covers the majority of automotive sensor applications: coolant temperature sensors (supply + signal + ground), wheel speed sensors (supply + signal + ground), and pressure sensors (supply + signal + ground). DT connectors use size 16 contacts (13A, 16–22AWG) — the standard for automotive harness wiring.

Key Specifications

• Part Numbers: DT04-3P (male plug) + DT06-3S (female receptacle)
• Contact Size: Size 16 (13A continuous per pin, 16–22AWG)
• IP Rating: IP67 (mated)
• Housing Material: Glass-filled nylon (PA66-GF), UL94 V-0
• Contact Material: Copper alloy, tin or gold-plated
• Operating Temperature: -55°C to +125°C
• Voltage Rating: 600V
• Wire Range: 16–22AWG (size 16 contacts)
• Quantity: 5, 10, or 100 sets (select above)

Common 3-Pin DT Wiring Configurations

• Automotive sensor (standard): Pin A = +5V reference supply, Pin B = Signal output, Pin C = GND — used for coolant temp, MAP, TPS, and most 3-wire sensors
• Hall effect sensor: Pin A = +12V supply, Pin B = Signal (open collector), Pin C = GND — used for wheel speed sensors, crankshaft position sensors
• Solenoid with feedback: Pin A = +12V switched supply, Pin B = GND return, Pin C = Position feedback signal
• 3-phase motor sensor: Pin A = Hall U, Pin B = Hall V, Pin C = Hall W — used for BLDC motor hall sensor connections
• Always verify pin assignment against the device datasheet or vehicle wiring diagram. DT connector pin labels (A, B, C) are molded into the housing.

DT 3-Pin vs DTM 3-Pin — Which to Choose?

• DT04-3P (this product): Size 16 contacts, 13A per pin, 16–22AWG. Standard housing size. For general automotive harness wiring, sensors, and actuators where wire gauge is 16–22AWG.
• DTM04-3P: Size 20 contacts, 7.5A per pin, 20–24AWG. Compact housing (approximately 40% smaller than DT). For signal wiring, low-current sensors, and applications where space is limited and current is below 7.5A per circuit.

What Questions Does This Product Answer?

• "What is the pin layout for a DT04-3P connector?" — DT04-3P has three cavities labeled A, B, C. Looking at the mating face (the face that connects to the female housing): cavity A is at the top-left, B is at the top-right, C is at the bottom-center. The pin labels are molded into the housing face. Always verify orientation against the housing markings — do not rely on memory.
• "Can I use DT 3-pin connectors for 3-phase motor power?" — Only for low-power 3-phase motors drawing less than 13A per phase. For higher-current 3-phase motor power (e.g., eBike hub motors drawing 20–30A per phase), use DTP series (size 12, 25A) or dedicated high-current motor connectors (Anderson, XT90).
• "How do I identify which cavity is A, B, C on a DT connector?" — The cavity labels are molded into the housing face in small raised letters. Use a flashlight and magnification if needed. On DT04-3P (male): A = top-left, B = top-right, C = bottom-center when viewed from the mating face with the latch at the top.

Typical Applications

• Automotive sensors: Coolant temperature, MAP, TPS, fuel pressure, and exhaust gas temperature sensors
• Agricultural equipment: Hydraulic pressure sensors, implement position sensors, PTO speed sensors
• Marine: Engine temperature sensors, fuel level sensors, bilge pump float switches with feedback
• Motorsport: Sensor sub-harnesses, data acquisition system connections, ECU sensor inputs
• Industrial: Proximity sensor connections, encoder wiring, solenoid valve feedback circuits

Package Contents

5, 10, or 100 sets (select above) — each set: 1× DT04-3P male housing + 1× DT06-3S female housing + 6× size 16 crimp contacts (3 male + 3 female) + W3S wedge lock + wire seals.