User Manual

MC45 Hardware Interface Description
P R E L I M I N A R Y
MC45_HD_01_V00.02a Page 70 of 90 12.08.2002
5.3 Board-to-board connector
This chapter provides specifications for the 50-pin board-to-board connector which serves as
physical interface to the host application. The receptacle assembled on the MC45 PCB is
type Hirose DF12C. Mating headers from Hirose are available in different stacking heights.
Figure 30: Hirose DF12C receptacle on MC45 Figure 31: Header Hirose DF12 series
Table 21: Ordering information DF12 series
Item Part number Stacking
height (mm)
HRS number
Receptacle on MC45 DF12C(3.0)-50DS-0.5V(81) 3 - 5 537-0694-9-81
Headers DF12 series DF12E(3.0)-50DP-0.5V(81)
DF12E(3.5)-50DP-0.5V(81)
DF12E(4.0)-50DP-0.5V(81)
DF12E(5.0)-50DP-0.5V(81)
3.0
3.5
4.0
5.0
537-0834-6-**
537-0534-2-**
537-0559-3-**
537-0584-0-**
Notes: The headers listed above are without boss and metal fitting. Please contact Hirose for details on
other types of mating headers. Asterixed HRS numbers denote different types of packaging.
Table 22: Electrical and mechanical characteristics of the Hirose DF12C connector
Parameter Specification (50 pin Board to Board connector)
Number of Contacts 50
Quantity delivered 2000 Connectors per Tape & Reel
Voltage 50V
Current Rating 0.5A max per contact
Resistance 0.05 Ohm per contact
Dielectric Withstanding Voltage 500V RMS min
Operating Temperature -45°C...+125°C
Contact Material phosphor bronze (surface: gold plated)
Insulator Material PA , beige natural
Stacking height 3.0 mm ; 3.5 mm ; 4.0 mm ; 5.0 mm
Insertion force 21.8N
Withdrawal force 1st 10N
Withdrawal force 50th 10N
Maximum connection cycles 50