F-219
QMSS–032–06.75–L–D–DP–PC4
QMSS–052–06.75–L–D–A
(0.635 mm) .025"
QMSS–026–06.75–L–D–A
QMSS SERIES
SHIELDED GROUND PLANE HEADER
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 50 µ" (1.27 µm) Ni
(Tin on Ground Plane Tail)
Voltage Rating:
300 VAC mated with QFSS
Operating Temp:
-55 °C to +125 °C
RoHS Compliant:
Yes
Board Mates:
QFSS
Standoffs:
SO
Integral metal plane for
power or ground
Increased insertion
depth for rugged applications
Optional
Power Pins
• Increased
insertion depth
• Integral guide post
Grounds
to shield
(1.30 mm)
.051"
NOMINAL
WIPE
PROCESSING
Lead–Free Solderable:
Yes
SMT Lead Coplanarity:
(0.10 mm) .004" max (026-078)
Board Stacking:
For applications requiring more
than two connectors per board,
contact ipg@samtec.com
HIGH-SPEED CHANNEL PERFORMANCE
QMSS-DP/QFSS-DP @ 11 mm Mated Stack Height
Rating based on Samtec reference channel.
For full SI performance data visit Samtec.com
or contact SIG@samtec.com
14
G b p s
Signal Pairs
Differential routing
RECOGNITIONS
For complete scope of
recognitions see
www.samtec.com/quality
FILE NO. E111594
QMSS
PINS PER ROW
NO. OF PAIRS
06.75
PLATING
OPTION
TYPE
A
OTHER
OPTION
ALSO AVAILABLE
(MOQ Required)
• Headers without
Alignment Pins
• 8 Power Pins/End
• 4 or 8 Power Pins/End for
(2.36 mm) .093" thick board
• Guide Post
• Edge Mount
• 64 (-DP) and 104 pins per row
(52 total pins per bank
40 signals + 12 grounds to shield = –D)
–026, –052, –078
–016, –032, –048
(16 pairs per bank = –D–DP)
= 10 µ" (0.25 µm)
Gold on Signal
Pins, Shield and
Ground Plane
(Tin on Signal Pin
tails, and Ground
Plane tails)
–L
= Single-Ended
–D
= Differential Pair
–D–DP
= (5.50 mm)
.217" DIA
Polyimide
film Pick &
Place Pad
(N/A with –PC4)
–K
No. of Banks x (21.34) .840 - (0.51) .020
(2.29)
.090
(21.35) .840
01
= 4 Power
Pins/End
(N/A with –A)
–PC4
(7.26)
.286
(0.635)
.025
(0.23)
.009
02
(0.25)
.010
(6.35)
.250
(6.35)
.250
(6.73)
.265
(7.52)
.296
OTHER
SOLUTIONS
APPLICATION
QFSS
(3.18)
.125
–D
QMSS
–D–DP
(11.00)
.433
(2.00) .07874
01
(2.31)
.091
See SO Series for precision
machined standoffs.
Notes:
Patented
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
(2.54)
.100
Due to technical progress, all designs, specifications and components are subject to change without notice.
All parts within this catalog are built to Samtec’s specifications.
Customer specific requirements must be approved by Samtec and identified in a Samtec customer-specific drawing to apply.
WWW.SAMTEC.COM
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Samtec
:
QMSS-026-06.75-H-D-A QMSS-016-06.75-L-D-DP-PC4 QMSS-078-06.75-L-D-PC4 QMSS-026-06.75-L-D-PC4
QMSS-052-06.75-L-D-A QMSS-026-06.75-L-D-A QMSS-016-06.75-L-D-DP-A QMSS-032-06.75-L-D-DP-PC4 QMSS-
052-06.75-H-D-PC4 QMSS-032-06.75-H-D-DP-A-GP QMSS-016-01-H-D-DP-EM2 QMSS-104-01-L-D-EM2 QMSS-
016-01-L-D-DP-EM2 QMSS-032-01-L-D-DP-EM2 QMSS-078-01-L-D-EM2-PC4 QMSS-048-01-H-D-DP-EM2-PC4
QMSS-104-01-H-D-EM2 QMSS-016-01-L-D-DP-EM2-PC4 QMSS-048-01-L-D-DP-EM2 QMSS-048-01-H-D-DP-EM2
QMSS-026-01-L-D-EM2 QMSS-026-01-L-D-EM2-PC4 QMSS-052-01-L-D-EM2-PC8 QMSS-016-01-H-D-DP-EM2-PC8
QMSS-052-01-H-D-EM2 QMSS-078-01-H-D-EM2 QMSS-078-01-L-D-EM2 QMSS-026-01-H-D-EM2 QMSS-052-01-
L-D-EM2 QMSS-052-01-L-D-EM2-PC4 QMSS-064-01-H-D-DP-EM2 QMSS-016-01-H-D-DP-EM2-PC4 QMSS-032-01-
H-D-DP-EM2-PC4 QMSS-048-01-L-D-DP-EM2-PC4 QMSS-052-01-H-D-EM2-PC4 QMSS-064-01-L-D-DP-EM2
QMSS-078-01-H-D-EM2-PC4 QMSS-032-01-H-D-DP-EM2-PC8 QMSS-032-01-L-D-DP-EM2-PC4 QMSS-032-01-L-D-
DP-EM2-PC8 QMSS-032-01-L-D-EM2-PC8 QMSS-026-01-H-D-EM2-PC4 QMSS-032-01-H-D-DP-EM2 QMSS-016-
06.75-L-D-DP QMSS-026-06.75-L-D-A-K-TR QMSS-026-06.75-L-D-A-TR QMSS-052-01-L-D-EM2-PC4-TR QMSS-
078-01-H-D-EM2-PC8 QMSS-052-06.75-L-D-A-K QMSS-032-06.75-H-D-DP-PC4 QMSS-048-06.75-H-D-DP-A
QMSS-052-06.75-H-D-A QMSS-052-06.75-H-D-A-K QMSS-078-06.75-L-D QMSS-016-06.75-H-D-DP-A QMSS-048-
06.75-L-D-DP-A-K-TR QMSS-048-06.75-L-D-DP-PC4 QMSS-064-06.75-L-D-DP-A QMSS-078-06.75-H-D-A QMSS-
016-06.75-L-D-DP-A-K-TR QMSS-048-06.75-H-D-DP-PC4 QMSS-052-06.75-H-D-A-GP QMSS-078-06.75-L-D-A
QMSS-026-06.75-H-D-A-K-TR QMSS-032-06.75-L-D-DP-PT8 QMSS-048-01-H-D-DP-EM2-PC8 QMSS-052-06.75-H-
D-A-TR QMSS-078-06.75-L-D-A-K QMSS-078-06.75-L-D-A-K-TR QMSS-016-06.75-L-D-DP-A-TR QMSS-016-06.75-
L-D-DP-PC8 QMSS-026-06.75-H-D-A-K QMSS-048-01-L-D-DP-EM2-PC8 QMSS-052-06.75-L-D-A-GP QMSS-052-
06.75-L-D-A-K-TR QMSS-078-06.75-L-D-PT4 QMSS-016-06.75-L-D-DP-A-K QMSS-032-06.75-L-D-DP-A QMSS-064-
06.75-H-D-DP-A QMSS-078-06.75-H-D-A-GP QMSS-016-06.75-H-D-DP-PC4 QMSS-026-06.75-L-D-PC8 QMSS-026-
06.75-L-D-PT4 QMSS-048-06.75-L-D-DP-A-K QMSS-078-01-L-D-EM2-PC8 QMSS-026-06.75-L-D-A-GP QMSS-032-
06.75-H-D-DP-A QMSS-052-06.75-L-D-PC4 QMSS-052-06.75-L-D-PC8 QMSS-104-06.75-L-D-A QMSS-026-06.75-L-
D-A-K QMSS-048-06.75-L-D-DP QMSS-052-06.75-L-D-PC4-TR QMSS-104-06.75-L-D-A-K QMSS-026-06.75-H-D-
PC4 QMSS-032-06.75-L-D-DP QMSS-048-06.75-L-D-DP-A QMSS-052-06.75-H-D QMSS-078-06.75-H-D-PC4
QMSS-016-06.75-L-D-DP-A-GP
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