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DMM connectors
Metallic connectors with a pitch of 2.0 mm
DMM METAL CONNECTOR - MICRO-D TYPE
High-Performance Metallic Connectors with a 2.0 mm Pitch
The DMM series connectors are highly durable and conform to MIL-DTL-83513G standards. Designed to optimize space while providing superior electromagnetic (EMI/RFI) and mechanical protection, these connectors are an ideal solution for demanding applications.
A backshell accessory can be added for 360-degree shielding. The DMM connectors also offer a wide variety of standard fixing options for secure mounting.
Key Benefits of DMM Connectors
- MIL-DTL-83513G compliant for high-reliability applications
- Compact, low-profile design with vibration resistance
- 360-degree EMI/RFI shielding
- Configurable from one to four rows of contacts
- Supports mixed contact types: High Power (HP), High Frequency (HF), and Low Frequency (LF)
- Up to 120 high-current contacts (3-5A) or 30 HP contacts (20-40A)
- Multiple termination options: push-wire, perpendicular PCB, angled PCB, Thru-Hole, and SMT
- Wire range:
- Signal contacts: 22 to 32 AWG
- Power and coaxial contacts: 12 to 20 AWG
DMM Series Overview
DMM-100 Series
- Up to 30 signal contacts
- Available terminations: wired, angled, straight to PCB, Thru-Hole, SMT
DMM-220 Series
- Supports mixed contacts: coax (HF), signal (LF), and high-current (HP)
- Two rows of signal contacts (each HP or HF contact replaces four LF contacts)
- Available terminations: crimped, angled, straight to PCB, Thru-Hole, SMT
DMM-320 Series
- Supports up to 40 signal contacts and 15 HP or HF contacts
- Coax frequency support: up to 6 GHz
- Available in three-row arrangements
- Customizable with mixed-contact configurations
DMM-420 & DMM-430 Series
- Four-row configurations, supporting up to 120 signal contacts
- Mixed contacts: coax (up to 6 GHz), signal (3-5A), high-current (20-40A)
- Flexible configurations: up to 30 (DMM-420) or 40 (DMM-430) COAX/HP contacts
- Even/odd arrangement for maximum customization
Start Configuring Your DMM Connector (Registration Required)
Build Your Perfect Connector
With 5M+ configurations available, you can create the best solution for your needs. Register on our website to generate a SKU, access drawings, and download models.
DMM Connectors: Designed for Compact Performance
We designed the DMM series to be more compact than traditional Micro-D solutions, providing high reliability without compromising on performance.
Superior Contact Technology
Nicomatic Signal (LF) Contacts
- Data transmission up to 5 Gbit/s in a 2 mm pitch connector
- Manufactured in-house for high precision and reliability
- Meets and exceeds MIL-DTL-83513G (tested up to 2500 cycles)
- Multi-lip stamped clip made of beryllium copper ensures stable electrical conductivity in harsh environments (vibration resistance: 20G, shock resistance: 100G)
Nicomatic High-Power (HP) Contacts
- Handles up to 30A
- Compact 4 mm pitch for high-density applications
- MIL-DTL-83513G compliant, tested for 500+ mating cycles
- Full derating data available for environmental specifications
Nicomatic High-Frequency (HF) Coaxial Contacts
- Frequency range: 400 MHz - 11 GHz
- Precision-turned for optimal signal integrity
- Designed in collaboration with European research laboratories
- Compatible with flexible and semi-rigid RF cables
Materials & Construction
Aluminum Shell 
- Material: Machined from 6061 aluminum
- Finish: 20µ chemical nickel plating (resistant to 96-hour salt spray exposure)
- Lightweight & rugged for aerospace and military applications
PPS Insulator
- 30% glass fiber-reinforced PPS
- Excellent outgassing and low humidity absorption
- Compliant with high-altitude and space environments
- Modular tooling system allows rapid configuration changes
Fixing Hardware
- Available on both male and female sides
- Two types of fixings: racking and screw-locking
- Made of 316L stainless steel, passivated for salt spray resistance
- Compatible with various PCB and panel thicknesses
DMM Connector Configurations
PCB Mounting Options
Straight PCB
- Thru-Hole or SMT termination
- Compatible with 0.8 to 3.2 mm PCBs
- Mixed layouts supported
90° PCB
- Thru-Hole or SMT termination
- Compact design with racking/locked fixing hardware
- Mixed layout capability
Cabling Options
Pre-Wired & Custom Lengths
- Backpotting option available
- Metal braid and backshell options for EMI shielding
DMM Backshell Solutions
- Material: Aluminum 6061 with 20µ chemical nickel plating
- Provides mechanical protection and 360° EMI/RFI shielding (MIL-STD-1377)
- Compatible with Band-it type systems
Split Backshell 
- Two-piece design for easy assembly and quick prototyping
Mono-Block Backshell 
- Compact, single-piece construction
- Not compatible with low-profile shapes
- Assembled using circlip tooling C17596
Why Choose Nicomatic DMM Connectors?
- Compact & Rugged: Saves space without sacrificing durability
- Customizable: Wide range of configurations to fit your exact needs
- Superior EMI/RFI Protection: 360-degree shielding ensures signal integrity
- Proven Reliability: Meets and exceeds MIL-DTL-83513G standards
Ready to build your perfect connector? Click below to configure your DMM connector, access drawings, and download 3D models.
Start Configuring Your DMM Connector (Registration Required)
Backshell protection
Connectors and wiring solutions
Questions / Answers
What types of power connectors does Nicomatic offer?
Nicomatic offers a wide variety of power connectors, including high-density connectors between the contacts that are resistant to harsh environmental conditions.
How to choose the Power connector for my application?
The choice of a power connector depends on several parameters, including electric current, voltage, the number of contacts and the work environment, the type of application and more. We recommend talking to our experts for professional advice.
What standards do the Nicomatic power connectors meet?
Our power connectors comply with leading international standards such as ISO 9001, and MIL, DTL and RoHS standards - work standard series. To obtain the certification, you can contact us or download from the website.
What is the average shelf life of a Nicomatic power connector?
The lifespan of our power connectors depends on the type of connector and the conditions of use. But most connectors are made to withstand thousands of plugging and unplugging cycles. We would be happy to discuss further details and provide recommendations based on your application.
Can you customize power connectors for certain needs?
Yes, Nicomatic are experts in customization, according to the customer's needs, it is possible to use different materials, different assemblies and create connectors that will be adjusted and meet your unique requirements. Please contact our team to discuss your needs and receive a quote.
What are the normal delivery times for your power connectors?
Our delivery times depend on several parameters, including the type of connector, the order quantity and the available stock. For standard items, the delivery times will be about four weeks, in urgent cases you can get fast deliveries.
How can I get a quote for a large quantity of power connectors?
To receive a quote, please contact us through our website or contact our team directly and we will be happy to provide an offer according to your requirements.
What payment methods are accepted for purchasing power connectors?
You can pay by bank transfer or credit cards. Please contact us for more information on payment options.
What is a single contact (signal)?
Signal contacts, defined for "low" currents of milliamperes up to 3 amps
What is HF contact?
HF contactor in its full name High Frequency contactor is a coaxial contactor that contains a central contact that conducts the signal (signal) isolated and above it a shell of shielding (Braid) K) for EMI/RFI protection.
What is the HP touch?
Contact HP or in its full name High Power, is intended for transferring currents of 3 amperes and up to 20 amperes, the interval between one HP contact and another will be 4 mm.
What is EMI?
Electromagnetic Interference
What is RFI?
Radio Frequency Interference
What is EMI/RFI protection?
While a current is passing through the contact or the cable, a magnetic field is created, the magnetic field that is created can interfere with the electrical data that you want to transmit, and in order to prevent this interference, the cable is wrapped in a shield, with the central conductor electrically isolated from the shield.
What is COAX contact?
A coax contact is intended in communications for transmitting signals at high frequencies, it contains a central contact that conducts the signal (signal) isolated and above it a shell of shielding (Braid) to prevent EMI/RFI interference. EMI - Electromagnetic Interference
RFI - Radio Frequency Interference
How do you choose a connector according to frequency (HZ) and impedance (Impedance-Ω)?
Nicomatic offers connectors for transmitting high frequencies from 1.5GHz to 11GHz depending on the cable. For the purpose of the characterization, it is necessary to define whether the frequency to be transmitted is up to 6GHz or beyond in order to choose the appropriate cable, in case you are not sure about the frequency, it is recommended to choose the appropriate cable for a higher frequency.
When to choose a plastic connector and when to choose a metal connector?
The choice of the connector material depends on the application, plastic connectors must be used for connectors inside the box and connectors that interface outside the box and need better protection from the electrically noisy environment, we will use metal connectors, in more extreme environments, we can add an additional layer of protection to the connector called BackShell (back accessory).
What is the advantage of SMT contacts (Surface Mount Technology) compared to intrusive contacts on the PCB?
In penetrating contacts (Thru-Hole), the connector is prevented from placing components on the other side of the PCB board, while in surface mounting the bottom side of the PCB is intended for independent editing and placing additional components.
Golden advice for designing connectors on a PCB board
Depending on the required task and especially the required mechanical size, it is advisable to use connectors that have a small pitch between the contacts, thus making it possible to design a compact and lightweight package, something that is very much required in optical systems and UAVs (unmanned aerial vehicles).
