Deutsch DTM Series 3-Pin Waterproof Connector – DTM04-3P Male & DTM06-3S Female

The Deutsch DTM 3-pin connector covers the most fundamental sensor wiring pattern in automotive and industrial applications: power (+V), ground (0V), and signal output — three circuits that define the majority of NPN/PNP sensors, solenoid valves, and single-output actuators. The DTM series uses size 20 contacts (7.5A, 20–24AWG), making it the compact, lightweight choice for signal and low-current wiring where the larger DT series size 16 contacts would be oversized for the wire gauge used.

Key Specifications

• Part Numbers: DTM04-3P (male plug) + DTM06-3S (female receptacle)
• Contact Size: Size 20 (7.5A continuous per pin, 20–24AWG)
• IP Rating: IP67 (mated)
• Housing Material: Glass-filled nylon (PA66-GF), UL94 V-0
• Contact Material: Copper alloy, gold-plated (size 20)
• Operating Temperature: -55°C to +125°C
• Voltage Rating: 600V
• Wire Range: 20–24AWG (size 20 contacts)
• Quantity: 5, 20, or 100 sets (select above)

Standard 3-Pin Wiring Patterns

The 3-pin DTM connector maps directly to the most common sensor and actuator wiring configurations:

• NPN sensor (sinking output): Pin A = +24V (brown), Pin B = Output (black, switches to GND), Pin C = 0V GND (blue)
• PNP sensor (sourcing output): Pin A = +24V (brown), Pin B = Output (black, switches to +24V), Pin C = 0V GND (blue)
• Solenoid valve (2-wire + ground): Pin A = +12V/+24V, Pin B = Switched supply, Pin C = GND return
• Analog sensor (0–10V or 4–20mA): Pin A = +24V supply, Pin B = Analog output signal, Pin C = 0V GND

DTM 3-Pin vs DT 3-Pin — Contact Size Comparison

• DTM04-3P (this product): Size 20 contacts, 7.5A, 20–24AWG. Compact housing (≈18mm wide). For signal wiring, sensor outputs, and low-current actuators where wire gauge is 20–24AWG.
• DT04-3P: Size 16 contacts, 13A, 16–20AWG. Larger housing (≈22mm wide). For power wiring, solenoid valves drawing >7.5A, and applications where wire gauge is 16–20AWG.
• Selection rule: Match the contact size to the wire gauge. Using size 16 contacts on 22AWG wire results in a loose crimp; using size 20 contacts on 16AWG wire is physically impossible (wire won’t fit the barrel).

What Questions Does This Product Answer?

• "What is the pin layout for DTM04-3P?" — DTM04-3P has 3 pins arranged in a triangular pattern. Pin A is at the top (or marked with “A” on the housing face). Verify against the Deutsch application specification for your specific housing orientation — pin labeling (A/B/C vs 1/2/3) varies by documentation source.
• "Can I use DTM connectors for 12V automotive sensor wiring?" — Yes. DTM connectors are rated 600V and -55°C to +125°C — well within automotive 12V/24V system requirements. The size 20 contacts are ideal for the 20–22AWG wire gauge used in most automotive sensor harnesses.
• "What crimp tool do I need for DTM size 20 contacts?" — Deutsch W-HT-20 hand crimp tool or equivalent ratchet tool with size 20 die. Do not use the HDT-48-00 (size 16 tool) — it will over-crimp size 20 contacts and cause open circuits or high resistance.
• "How do I identify which end is DTM04 vs DTM06?" — DTM04 = male plug (pins protrude). DTM06 = female receptacle (sockets recessed). The ‘04’ and ‘06’ designations are consistent across all Deutsch DT/DTM/DTP series regardless of pin count.

Typical Applications

• Automotive sensors: MAP, TPS, CMP, CKP, wheel speed sensor pigtails and sub-harnesses
• Motorsport: Standalone ECU sensor connections (Haltech, MoTeC, AEM, Link ECU), data logger inputs
• Agricultural equipment: Precision farming sensor harnesses, GPS receiver connections, implement control sensors
• Industrial automation: Proximity sensor wiring, photoelectric sensor connections, solenoid valve harnesses
• Marine electronics: Depth sounder sensor connections, trim position sensor wiring, fuel level sensor harnesses

Package Contents

5, 20, or 100 sets (select above) — each set: 1× DTM04-3P male housing + 1× DTM06-3S female housing + 6× size 20 crimp contacts (3 male + 3 female) + W3S wedge lock.