Hard Metric 2mm

Hard Metric 2mm2mm Hard Metric Press-Fit connectors

Connectors in the 'ept' hardmetric connector system, ept-hm 2.0 comply with IEC 61076-4-101 and are intermateable with all other similarly compliant products from other manufacturers like Harting, Erni, Hirose and Tyco, etc.


Developed for high speed telecom backplane and PC104 for embedded systems, the signal connector for CompactPCI hardware platform is a classic example for the use of hardmetric connectors. The 'hm' 2mm is a gas tight, high density pin-and-socket connector which meets the IEC-61076 international standard. These connectors are now being used more and more in the computer / peripheral market as well as the industrial and instrumentation markets. Important parameters such as the fixing, shielding and coding of the printed circuit boards are compatible regardless of the individual application.

'ept' offers 5 row and 8 row 2.0mm hard metric connectors according to IEC 61076-4-101.

The product family includes all standard types and variants for CompactPCI, Hot Swap and CTI (Computer Telephony Integration). The modules are defined as the 5+2 row types A, B, AB and C and the 8+2 row types D, E and DE.

11.25mm contacts for shielding rows z & f

Press Fit HM2mm

Key Features


Blue Bullet IEC 61076-4-101
Blue Bullet hm 2.0 modules offer a number of possibilities to optimize large contact densities, especially in combination with coaxial or fibre-optic connections.
Blue Bullet Easily connected in series to form a continuous 2mm grid to achieve an overall length as required
Blue Bullet Pressfit contact tails for speed and superior quality, up to 250 contacts
Blue Bullet Connector shrouds
Blue Bullet Premate contacts available
Blue Bullet 5 row and 8 row 2.0mm hard metric connectors according to IEC 61076-4-101. Shielded connectors (rows z & f)
Blue Bullet Adapted press-fit zones for various new PC board surfaces
Blue Bullet Press-fit Assembly tools
Press-fit Assembly machines


Blue Bullet Insulator - Glass fibre reinforced polyester rated UL94V-0
Blue Bullet Contact - Bronze
Blue Bullet Contact surface plating - Au over PdNi over Ni
Blue Bullet

at 20C Tamb. = 1.5A max./at 70C Tamb. = 1.0A

Blue Bullet Test Voltage - 750V rms fully loaded
Blue Bullet Test Voltage - 1500V rms every second position
Blue Bullet Contact Resistance - 20m Ohm max
Blue Bullet Insulation Resistance (Contact/Contact or Contact/Shielding - min. 104
Blue Bullet Mechanical operations
> 250 mating cycles
Blue Bullet Insertion and withdrawal force (per contact) - 0.75 N / Shielding 1N
Blue Bullet

Seperating force - 0.15N

Blue Bullet RoHS compliant/UL (file: E130314)
Blue Bullet Operating Temperature - -55C to +125C
Blue Bullet A, B25, B22, B19, AB25, AB22, AB19, C, D, E, DE, F, L, M, N
Blue Bullet Shielded
Blue Bullet Compact PCi
Blue Bullet hm 2.0-6 (72/144 contacts)
Blue Bullet Through Hole Reflow Solder THTR


The grid

ept hm 2.0 connectors can be easily connected in series to form a continuous 2 mm grid. This grid pattern is advantageous when creating a printed circuit board since no space is lost in the individual connector modules.

Connecting modules

The ends of the insulator material are chamfered to simplify the connection of additional modules and avoid twisting the connectors. The chamfers ensure exact positioning on the printed circuit boards and stabilize the modules.


The connectors must be coded in a modern BUS system to avoid mixing up the printed circuit boards. "Coding keys" can be manually snapped onto the multi-function block of the connector types A, D, L and M. The different inserts are colour-coded and can thus be kept apart.

Multi-function block

The modules A, D, L and M are equipped with a multi-function block. This in turn can be equipped with the coding keys. The moulded guides ensure the correct alignment of the male and female connectors to each other and they offer anti-twist protection before contacting. The coding keys can be inserted or withdrawn using a simple insertion or withdrawal tool.

Contact lengths of the mating and termination side

ept offers three different lengths for the front and four different lengths for the rear side. The different contact lengths are necessary because certain signal or ground contacts need to be the first to be connected/disconnected when adding/removing a module. The 11.25 mm long contacts are mainly required for the shielding rows z and f.


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HM 2mm Hard Metric Backplane

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