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QMSS-078-xx-L-Dx-A-x fiches techniques PDF

Samtec - Shielded Header

Numéro de référence QMSS-078-xx-L-Dx-A-x
Description Shielded Header
Fabricant Samtec 
Logo Samtec 





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QMSS-078-xx-L-Dx-A-x fiche technique
F-209-1
QMSS – 048 – 0 6.75 – L– D – DP– PC4
TM QMSS–052–06.75–L–D–A
QMSS – 026 – 0 6.75 – L– D –A
0,635 SHIELDED HEADERwww.datasheet4u.com
mm
QMSS
SERIES
SPECIFICATIONS
For complete specifications and
recommended PCB layouts see
www.samtec.com?QMSS
Insulator Material:
Liquid Crystal
Polymer
Terminal, Ground
Plane & Shield Material:
Phosphor Bronze
Plating:
Au over 50µ" (1,27µm) Ni
(Tin on Ground Plane Tail)
Current Rating:
Signal Contact: 1.8A @ 80°C
Power Contact: 3.95A @ 80°C
Ground Plane: 8.9A @ 80°C
Voltage Rating:
300 VAC mated with QFSS
Operating Temp:
-55°C to +125°C
RoHS Compliant:
Yes
Processing:
Max Processing Temp:
230°C for 60 seconds, or
260°C for 20 seconds 3x
Lead–Free Solderable:
Yes
SMT Lead Coplanarity:
(0,10mm) .004" max (026-078)
(0,15mm) .006" max (104)
Board Stacking:
For applications requiring
more than two connectors
per board or 4 banks or more,
APPLICATION
SPECIFIC OPTION
• Headers without
Alignment Pins
• 8 Power Pins/End
• 4 or 8 Power Pins/End
for (2,36mm) 0.93"
thick board
• Guide Post
• Edge Mount
• Hot Pluggable
Call Samtec.
APPLICATION
Board Mates:
QFSS
Integral metal plane
for power or ground
Cable Mates:
6QDPS
APPLICATIONS
See SO Series for precision
machined standoffs.
Grounds
to shield
11mm Stack Height
Based on ± 10%
Impedance/Crosstalk
Single-Ended Signaling 2.3 GHz / 4.6 Gbps
Differential Pair Signaling 1.4 GHz / 2.8 Gbps
Signal Pairs
Differential routing
QMSS
PINS PER ROW
NO. OF PAIRS
06.75
PLATING
OPTION
–026, –052, –078, –104
(52 total pins per bank
40 signals + 12 grounds to shield = –D)
–016, –032, –048, –064
(16 pairs per bank = –D–DP)
No. of Banks x (21,34) .840 - (0,51) .020
(2,29)
.090
(21,35) .840
01
(7,26)
.286
(3,18)
.125
(0,635)
.025
(0,23)
.009
02
(6,35)
.250
–L
= 10µ" (0,25µm)
Gold on Signal
Pins, Shield and
Ground Plane
(Gold flash on
Signal Pin tails,
Tin on Ground
Plane tails)
(0,25)
.010
(6,73)
.265
Increased insertion
depth for rugged applications
Optional
Power Pins
TYPE
A
OTHER
OPTION
–D
= Single-Ended
–D–DP
= Differential Pair
–K
= (5,50mm)
.217" DIA
Polyimide
film Pick &
Place Pad
(N/A with –PC4)
– PC4
= 4 Power
Pins/End
(N/A with
–104 or –A)
(6,35)
.250
(7,52)
QFSS
.296
QMSS
(11,00)
.433
(2,00) .07874
(2,31)
01 .091
Note: Some lengths,
styles and options are
non-standard, non-returnable.
02
No. of Banks x (21,34) .840 + (13,21) .520
–PC4
(2,54)
.100
WWW.SAMTEC.COM
(2,54)
.100

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