Mini Delta Ribbon (MDR) 68-Pin Dual Breakout Board

BRKAMC68FF-S-DIN

BRKAMC68FF-S-DIN
(click image to enlarge)
BRKAMC68FF-S-DIN
BRKAMC68FF-S-FT
BRKAMC68FF-S-FT (Overhead View)
MDR 68-Pin Connector
  • Two Mini Delta Ribbon (MDR) connectors
  • Screw terminal for each of the 68 lines, plus shield
  • Solder pad connection space for all 68 lines, plus shield
  • Rubber feet or DIN rail mount
See Also: MDR Cables,   More Breakout Boards,   VHDCI 68-Pin Breakout Board


General Description

Centronics, MDR, VHDCI, HPDSUB  Connector Guide

These breakout boards feature two 68-pin Mini D Ribbon (MDR) Female connectors wired 1:1, with all pins brought out to screw terminals for easy connection. Having two connectors allows the board to be easily inserted "in-line" with an existing connection, allowing signals to pass through while being monitored. Similarly, it can be used to break out some signals for use while daisy chaining the connection on to another piece of equipment.

Each pin is also brought to solder pads (2 per pin) at 0.1" spacing, allowing easy addition of 0.1" pin headers or other components. Please note that the breakout boards are manufactured with a connection between each connector pin and the corresponding terminal block position; no soldering of any type is necessary. The solder pads simply provide an area for making optional connections to additional headers or other components.

The connector used on this product goes by several different names, including Mini D Ribbon, Mini Delta Ribbon, MDR, Mini Centronics, Half-Pitch Centronics, HPCN, HPCN68, Half-Pitch CN, and Micro Centronics. It is also occasionally referred to as a SCSI2 connector, though that is not typically a proper use of the term. Sometimes these 68-pin MDR connectors are called Mini 68 or SCSI-III connectors. However, be aware that there is some confusion in the terms commonly used. See our connector guide for clarification. Also, the manufacturer and model of the connector on these breakout boards is listed below, making it possible to carefully compare the connector on your application to the connector used on these breakout boards. Contact Winford Engineering for any needed assistance.


These break out boards are perfect for experimentation and prototype work, as well as for use in permanent installations. They are well-suited for interfacing with data acquisition equipment or any other devices that use a Mini D Ribbon connector. A breakout board is sometimes referred to as a "transition module", "terminal board", "terminal block", "breakout box", "breakout adapter", "terminator", or "interface module".

MDR Connector Details

The Mini Delta Ribbon (MDR) series of connectors provides a compact arrangement of durable sliding 'ribbon' contacts. The high contact density and good performance at high speeds have yielded many applications for this connector type. These are 'half-pitch' connectors, meaning that the contact spacing is tighter than full-size Centronics connectors, such as those used on our BRKDC36F or BRKDC50F breakout boards. The 'half-pitch' connectors utilize contacts on 0.05" centers.

Winford Engineering currently utilizes MDR connectors from 3M™ on these breakout boards; connector details are listed below.

MDR Connector Details
Manufacturer 3M
Mfg. Part # Vertical: 10268-6212PC
Threaded Inserts Vertical: M2.5 (See Note)
Latch Blocks Present
Jack Sockets Not Included
Note: The threaded inserts are populated with an M2.5 screw inserted from the bottom of the PCB.

Mounting Options

These products are available in two different mounting variants. Product numbers ending with -DIN come with DIN clips already installed and ready to snap onto 35mm or 32mm DIN rail. Product numbers ending with -FT have stick-on rubber feet installed on the bottom side, allowing for benchtop use or panel mounting. For panel mounting, we suggest 1/4" nylon standoffs under the mounting holes, and #6 screws.
BRKAMC68FF-S-DIN
DIN Rail Mount
BRKAMC68FF-S-DIN
EnlargeClick image to enlarge.
Rail not included
BRKAMC68FF-S-FT
Rubber Feet
BRKAMC68FF-S-FT
EnlargeClick image to enlarge.

Cables

Winford Engineering offers 68-pin MDR cables (shown below) which are compatible with these breakout boards.
CBMDR68MB-3
MDR Cable
CBMDR68MB-3 pictured
EnlargeClick image to enlarge.
MDR Connector
68-Pin MDR Connector
EnlargeClick image to enlarge.

Applications

This breakout board is general-purpose in nature and useful when interfacing to a variety of equipment. There is some use of this 68-pin MDR connector in the data aquisition and instrumentation fields. This breakout board is designed to work with this type of system to split out I/O signals for connection to other equipment. Examples include the GUNT 'FL 151' Multi-Channel Measuring Amplifier.

Product Details

  • Mini D-Ribbon (Mini Delta Ribbon, MDR, Mini Centronics) 68-pin connectors
  • Screw terminal for each of the 68 lines, plus shield
  • Screw terminals accomodate wire sizes from 16AWG to 26AWG
  • Approximate dimensions: 3.84" x 3.5"
  • Rubber feet or DIN rail mount

Screwdrivers Need a quality screwdriver for your breakout boards? Winford sells Wiha screwdrivers!

Pricing and Ordering

Product # Description 1+ 10+ RoHS Buy Now
Mini D Ribbon 68-Pin Straight Connector:
BRKAMC68FF-S-DIN Mini Centronics/MDR 68-Pin Female Dual Breakout Board, Straight Connector, M2.5 Thread, DIN Rail Mount $94.50 $89.50  Yes
BRKAMC68FF-S-FT Mini Centronics/MDR 68-Pin Female Dual Breakout Board, Straight Connector, M2.5 Thread, Rubber Feet $93.00 $88.00  Yes

Mini D Ribbon 68-Pin Straight Connector:
BRKAMC68FF-S-DIN
RoHS   Yes
Mini Centronics/MDR 68-Pin Female Dual Breakout Board, Straight Connector, M2.5 Thread, DIN Rail Mount
QuantityPrice
1+$94.50
10+$89.50
BRKAMC68FF-S-FT
RoHS   Yes
Mini Centronics/MDR 68-Pin Female Dual Breakout Board, Straight Connector, M2.5 Thread, Rubber Feet
QuantityPrice
1+$93.00
10+$88.00

All of the above items are normally stocked. Please call us if you need to verify availability for a specific quantity, or for pricing at higher quantities. Please visit our ordering page for our ordering policies and a list of ordering methods.


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