Connector Family Guide
DTM Series connectors are compact sealed Deutsch connectors used for low-current signal wiring, sensors, switches, CAN bus circuits, electronic modules and space-constrained electrical systems.
DTM connectors are often selected when a standard DT connector is larger than needed and the circuit does not require the higher current capacity of a DTP connector. Their compact format makes them useful in harnesses where space, signal reliability and environmental protection all matter.
This guide explains what DTM Series connectors are, where they are used, how they compare with DT and DTP connectors, and which contacts, wedgelocks and tools are needed to complete a DTM connector assembly.
Quick Answer: What Are DTM Series Connectors?
DTM Series connectors are compact sealed Deutsch connectors for lower-current signal circuits. They are commonly used for sensors, switches, CAN bus wiring, electronic control modules and compact harness branches where space is limited.
| DTM feature | What it means | Shop or guide |
|---|---|---|
| Connector family | Deutsch DTM Series. | Shop DTM Series |
| Typical contact size | Size 20 contacts. | Shop contacts |
| Typical use | Compact low-current signal wiring. | Sensor connector guide |
| Common applications | Sensors, CAN bus, switches and control wiring. | Application guide |
| Compared with DT | Smaller and better for signal circuits. | DT vs DTM vs DTP |
What Are DTM Series Connectors?
DTM Series connectors are sealed rectangular Deutsch connectors designed for compact wiring applications. They are commonly used when the circuit needs a dependable sealed connection but the wire size and current requirement are smaller than a typical DT or DTP application.
In practical terms, DTM connectors are a strong choice for circuits that carry signals rather than heavier electrical loads. That includes sensor feedback, switches, low-current control wiring and communication circuits.
Browse the DTM Series collection if you already know this is the correct connector family for your application.
DTM Series Specifications
DTM Series specifications should be checked alongside the exact product listing, selected contacts and wire gauge. The connector housing, contacts, wedgelocks and installation method all affect the final assembly.
| Specification | DTM Series detail | Selection note |
|---|---|---|
| Connector family | Deutsch DTM Series | Compact sealed connector family. |
| Typical contact size | Size 20 | Confirm exact contact and wire gauge before ordering. |
| Typical current range | Up to 7.5A per contact, depending on contact and conditions. | Best for low-current signal applications. |
| Common cavity counts | 2, 3, 4, 6, 8 and 12-way configurations. | Match cavity count to the number of circuits. |
| Typical use | Sensors, switches, CAN bus and compact control wiring. | Use DT or DTP for larger wire or higher-current circuits. |
| Accessories | Contacts, wedgelocks, seals, backshells and tools. | Confirm whether each product is housing-only or a kit. |
For electrical load guidance, read the Deutsch Connector Current Rating Guide.
Common Applications
Common applications for DTM Series connectors include sensors, CAN bus wiring, switches, monitoring circuits, electronic control modules, low-current signal wiring and compact harness branches.
| Application | Why DTM fits | Related guide |
|---|---|---|
| Pressure sensors | Compact sealed format for low-current signal wiring. | Sensor connector guide |
| Temperature sensors | Good starting point for smaller sensor circuits. | Sensor connector guide |
| CAN bus circuits | Useful for compact communication wiring where current is low. | Application guide |
| Switch wiring | Works well where the connection is compact and signal-focused. | Shop DTM Series |
| Electronic control wiring | Supports compact harness branches and low-current circuits. | Selection guide |
DTM vs DT vs DTP
DTM, DT and DTP connectors are related Deutsch rectangular connector families, but they are not interchangeable. DTM is the compact low-current option, DT is the general-purpose option and DTP is the higher-current option.
| Connector family | Typical contact size | Best for | Choose when... | Shop |
|---|---|---|---|---|
| DTM Series | Size 20 | Compact signal wiring. | You are wiring sensors, switches or CAN bus circuits. | Shop DTM |
| DT Series | Size 16 | General-purpose sealed wiring. | You are wiring lights, relays, solenoids or equipment harnesses. | Shop DT |
| DTP Series | Size 12 | Higher-current circuits. | You are wiring pumps, fans, motors or power accessories. | Shop DTP |
For a deeper comparison, read DT vs DTM vs DTP Connectors: What’s the Difference?.
DTM Connector Housings
DTM connector housings are available in plug and receptacle configurations. In common DTM part numbers, DTM04 usually identifies a receptacle housing and DTM06 usually identifies a plug housing.
| Receptacle housing | Mating plug housing | Cavity count | Shop |
|---|---|---|---|
| DTM04-2P | DTM06-2S | 2-way | Shop DTM Series |
| DTM04-4P | DTM06-4S | 4-way | Shop DTM Series |
| DTM04-6P | DTM06-6S | 6-way | Shop DTM Series |
For compatibility details, read the Deutsch Connector Mating Guide.
Contacts and Terminals
DTM Series connectors typically use Size 20 contacts. The contact must match the connector family, pin or socket side, wire gauge and crimp tooling.
| Contact type | Common role | Selection note | Shop |
|---|---|---|---|
| Pin contacts | Male contacts used on the pin side of the connector. | Match to DTM family, Size 20 contacts and wire gauge. | Shop contacts |
| Socket contacts | Female contacts used on the socket side of the connector. | Match to mating pin contact and DTM housing. | Shop terminals |
| Wire gauge | The selected contact must crimp correctly to the wire. | Check the contact listing before ordering. | Shop contacts |
For a deeper component guide, read Deutsch Contacts, Terminals & Accessories Guide.
Wedgelocks and Accessories
DTM Series connectors use compatible wedgelocks to provide secondary contact retention. Wedgelocks must match the connector housing, housing side and cavity count.
| Accessory | Why it matters | Shop or guide |
|---|---|---|
| Wedgelocks | Help retain and align contacts inside the housing. | Shop wedgelocks |
| Contacts | Must match Size 20 DTM contact requirements. | Shop contacts |
| Seals and accessories | Support correct assembly and environmental protection. | Shop accessories |
| Tools | Crimp and removal tools must match the selected contacts. | Shop tools |
If the connector or wedgelock will not seat correctly, read Deutsch Connector Not Locking?.
Choose DTM Connectors by Application
Choose DTM Series connectors when the circuit is compact, low-current and signal-focused. If the application involves larger wire or higher current, compare DT or DTP before ordering.
| Application need | Is DTM a good fit? | Selection note |
|---|---|---|
| Sensor wiring | Yes | Strong starting point for compact signal circuits. |
| CAN bus wiring | Yes | Useful where current is low and connector space matters. |
| Switch circuits | Yes | Good fit for compact low-current control wiring. |
| General lighting wiring | Sometimes | Compare DT if the wire or current requirement is larger. |
| Fuel pumps, fans or motors | No | Compare DTP for higher-current circuits. |
DTM Series Buying Checklist
Use this checklist before ordering DTM Series connectors. It helps prevent missing components and compatibility mistakes.
| Checklist item | Confirm before ordering | Shop or guide |
|---|---|---|
| Connector family | DTM Series is the correct family for the circuit. | Shop DTM Series |
| Cavity count | Connector positions match the number of circuits. | Shop DTM connectors |
| Plug and receptacle | The mating halves are compatible. | Mating guide |
| Contacts | Size 20 pin and socket contacts match wire gauge. | Shop contacts |
| Wedgelocks | Wedgelocks match the housing side and cavity count. | Shop wedgelocks |
| Tools | Crimp and removal tools match the selected contacts. | Shop tools |
Common DTM Series Selection Mistakes
Most DTM Series mistakes happen when users choose by connector appearance, ignore current requirements or mix DTM parts with DT and DTP components.
| Mistake | Why it causes problems | Better practice |
|---|---|---|
| Using DTM for higher-current loads | DTM is intended for compact lower-current wiring. | Compare DT or DTP if the current requirement is higher. |
| Mixing DTM, DT and DTP parts | Different families use different housings, contacts and wedgelocks. | Keep components matched to the same connector family. |
| Buying only the housing | The housing may not include contacts, wedgelocks or tools. | Confirm the full assembly before ordering. |
| Using the wrong contact size | Wrong contacts may not seat, crimp or retain correctly. | Confirm Size 20 DTM contacts and wire gauge. |
| Forgetting wedgelocks | Contacts may not be retained or aligned correctly. | Add the correct wedgelock for the housing side and cavity count. |
FAQs: DTM Series Connectors Explained
What are DTM Series connectors?
DTM Series connectors are compact sealed Deutsch connectors designed for low-current signal and electronic applications such as sensors, switches, CAN bus wiring and control circuits.
What are DTM connectors used for?
DTM connectors are commonly used for sensors, switches, CAN bus circuits, electronic modules, monitoring equipment and compact low-current wiring harnesses.
What contact size do DTM connectors use?
DTM Series connectors typically use Size 20 contacts. Always confirm the exact contact, wire gauge and product listing before ordering or crimping.
What is the difference between DTM and DT connectors?
DTM connectors are smaller and better suited to compact low-current signal wiring. DT connectors are larger and used for more general-purpose sealed wiring such as lighting, relays and solenoids.
Are DTM connectors good for sensors?
Yes. DTM connectors are often a strong starting point for sensor wiring because they are compact and designed for lower-current signal circuits.
Do DTM connectors need wedgelocks?
Yes. DTM connector assemblies use compatible wedgelocks to provide secondary contact retention and alignment. The wedgelock must match the connector housing, side and cavity count.
Final Recommendation
Choose DTM Series connectors when you need a compact sealed connector for sensors, switches, CAN bus wiring, low-current control circuits or space-constrained harness branches.
Before ordering, confirm the cavity count, plug and receptacle pair, Size 20 contacts, wire gauge, wedgelocks, seals and tools. Browse DTM Series connectors, contacts and terminals, wedgelocks and Deutsch connector tools to complete your DTM connector assembly.
