SS4, ST4 SERIES
(0.40 mm) .0158" SS4–20–3.00–L–D–K–TR
SS4–40–3.00–L–D–K–TR
ST4–40–1.00–L–D–P–TR
ST4–20–1.00–L–D–P–TR
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
SS4 Mates with:
ST4
ST4 Mates with:
SS4
Note:
Some lengths, styles and
options are non-standard,
non-returnable.
For complete specifications
and recommended PCB layouts
see www.samtec.com?SS4 or
www.samtec.com?ST4
Insulator Material:
Black LCP
Contact Material:
Phosphor Bronze
Plating:
Au or Sn over
50 µ" (1.27 µm) Ni
Current Rating:
1.6 A per pin
(2 pins powered)
Operating Temp Range:
-55 °C to +125 °C
RoHS Compliant:
Ye s
For complete scope of
recognitions see
www.samtec.com/quality
RECOGNITIONS
(0.40) .01575 (5.00)
.197
(4.35)
.171
A
(0.15) .006
No. of positions x
(0.40) .01575 + (3.54) .139
B
LEAD
STYLE A B
–3.00 (2.85)
.112
(3.50)
.138
–3.50 (3.35)
.132
(4.00)
.157
SS4 POSITIONS
PER ROW K TR
–10, –20,
–30, –40, –50
LEAD
STYLE
–3.00
= 3.00 mm
–3.50
= 3.50 mm
–L
= 10 µ" (0.25 µm)
Gold on contact,
Matte Tin on tail
(Required
in callout)
–TR
= Tape &
Reel
(Required
in callout)
–K
= (3.50 mm)
.138" DIA
Polyimide
Film Pick &
Place Pad
PLATING
OPTION D
FILE NO. E111594
Gbps
28
HIGH-SPEED CHANNEL PERFORMANCE
SS4/ST4 @ 4 mm Mated Stack Height
Rating based on Samtec reference channel.
For full SI performance data visit Samtec.com
or contact SIG@samtec.com
PROCESSING
Lead-Free Solderable:
Ye s
SMT Lead Coplanarity:
(0.10 mm) .004" max
(4.00)
.157
No. of positions x
(0.40) .01575 + (1.58) .062
(3.70)
.146
A
B
(0.20) .008 (0.40) .01575
ST4 POSITIONS
PER ROW P TR
–10, –20,
–30, –40, –50
LEAD
STYLE
–1.00
= 1.00 mm
–1.50
= 1.50 mm
–2.50
= 2.50 mm
–L
= 10 µ" (0.25 µm)
Gold on contact,
Matte Tin on tail
(Required
in callout)
–TR
= Tape &
Reel
(Required
in callout)
–P
= Pick &
Place Pad
PLATING
OPTION D
ULTRA-FINE PITCH SOCKET & HEADER
SPECIFICATIONS
LEAD
STYLE A B
–1.00 (1.00)
.039
(3.08)
.121
–1.50 (1.50)
.059
(3.58)
.141
–2.50 (2.50)
.098
(4.58)
.180
MATED HEIGHT
MATED HEIGHT*
ST4
LEAD
STYLE
SS4 LEAD STYLE
–3.00 –3.50
–1.00 (4.00)
.157
(4.50)
.177
–1.50 (4.50)
.177
(5.00)
.197
–2.50 (5.50)
.217
(6.00)
.236
*Processing conditions will
affect mated height.
SS4
ST4
MATED
HEIGHT
POWER/SIGNAL
APPLICATION
Compatible with
UMPT/UMPS for flexible
two-piece power/signal solutions
F-219
