K
CONNECTOR SERIES
Medium & High Density PCB Connectors
Hyperboloid
TecHnology
Smiths Connectors offers an extensive range of superior contact technologies suitable for standard and custom
solutions. Hypertac
®
(HYPERboloid conTACT) is the original superior performing hyperboloid contact technology
designed for use in all applications and in harsh and demanding environments where high reliability and safety
are critical. The inherent electrical and mechanical characteristics of the Hypertac hyperboloid contact ensures
unrivalled performance in terms of reliability, number of mating cycles, low contact force and minimal contact
resistance. The shape of the contact sleeve is formed by hyperbolically arranged contact wires, which align
themselves elastically as contact lines around the pin, providing a number of linear contact paths.
FeATUre
LOW INSERTION/EXTRACTION FORCES
The angle of the socket wires allows tight control of the pin
insertion and extraction forces. The spring wires are
smoothly deflected to make line contact with the pin.
LONG CONTACT LIFE
The smooth and light wiping action minimizes wear on the
contact surfaces. Contacts perform up to 100,000 insertion/
extraction cycles with minimal degradation in performance.
LOWER CONTACT RESISTANCE
The design provides a far greater contact area and the wiping
action of the wires insures a clean and polished contact
surface. Our contact technology has about half the resistance
of conventional contact designs.
HIGHER CURRENT RATINGS
The design parameters of the contact (e.g., the number,
diameter and angle of the wires) may be modified for any
requirement. The number of wires can be increased so the
contact area is distributed over a larger surface. Thus, the
high current carried by each wire because of its intimate line
contact, can be multiplied many times.
IMMUNITY TO SHOCK & VIBRATION
The low mass and resultant low inertia of the wires enable
them to follow the most abrupt or extreme excursions of the pin
without loss of contact. The contact area extends 360° around
the pin and is uniform over its entire length.
The 3 dimensional symmetry of the Hypertac contact design
guarantees electrical continuity in all circumstances.
beneFiT
HIGH DENSITY INTERCONNECT SYSTEMS
Significant reductions in size and weight of sub-system
designs. No additional hardware is required to overcome
mating and un-mating forces.
LOW COST OF OWNERSHIP
The Hypertac contact technology will surpass most product
requirements, thus eliminating the burden and cost of having
to replace the connector or the entire subsystem.
LOW POWER CONSUMPTION
The lower contact resistance of our technology results in a
lower voltage drop across the connector reducing the power
consumption and heat generation within the system.
MAXIMUM CONTACT PERFORMANCE
The lower contact resistance of the Hypertac contact reduces
heat build-up; therefore Hypertac contacts are able to handle
far greater current in smaller contact assemblies without the
detrimental effects of high temperature.
RELIABILITY UNDER HARSH ENVIRONMENTS
Harsh environmental conditions require connectors that will
sustain their electrical integrity even under the most demanding
conditions such as shock and vibration. The Hypertac contact
provides unmatched stability in demanding environments when
failure is not an option.
TABLE OF CONTENTS
Kn SerieS -
Medium Density PCB Connectors
KNB series (2 rows)
.........................................................................................................
2
KXB series (2 rows)
.......................................................................................................
19
KNC/KND series (3 rows)
.............................................................................................
22
Contacts
...........................................................................................................................
38
Accessories and tools
....................................................................................................
39
KM SerieS -
High Density PCB Connectors
KMC Series (3 rows)
......................................................................................................
42
KMH Series (3 rows)
......................................................................................................
65
Accessories and tools
....................................................................................................
71
1
KNB
TECHNICAL CHARACTERISTICS
Contact diameter
Number of contact
Pitch
Rows
HYPERTAC
®
type Ø 0.60 mm rear removable
Up to 120
2.54mm between rows
1.27mm between quicuncial contacts
2
MATeriAlS & plATingS
Contact
Moulding
Guides
Brass or bronze
Glass fiber filled diallyl - Phtalate
Stainless steel or nickel plated brass
Standard
Pin body
Socket body
Socket wires
0.25 µm Gold / 1.27 µm Ni
0.25 µm Gold / 1.27 µm Ni on activ area
1.27 µm Ni on non activ area
1 µm Gold / 0.20 µm Ni
eSA
1.27 µm Gold / 1.27 µm Ni (min)
0.25 µm Gold / 1.27 µm Ni (min)
1.27 µm Gold / 0.20 µm Ni (min)
elecTricAl
Current rating (at 25°C)
Dielectric withstanding voltage
Contact resistance
Insulation resistance
Standard: 3 A max
ESA: 5 A max
1200 Vrms
≤ 8 mΩ
> 10
4
mΩ (500 Vcc)
MecHAnicAl
Mating & unmating cycle
Guiding
Keying
5000
By two outside guides (2 guiding styles)
and one central guide (3 guidind styles)
By rotating of outside polarised guides (up to 36 keying)
environMenTAl
Temperature range
Conformity
-55° C + 125° C
MIL C 55302, ESA/ESCC3401/016 - 3401/017, NF C-UTE C 93-424
Dimension are in mm
2
KNB
HOW TO ORDER
KNB
1 2 3
4
5
6
7
1
2
3
4
7
SerieS
piTcH or Type
Model
N
1.27 MM PITCH, REAR REMOVABLE CONTACTS
B
2 ROWS
nUMber oF conTAcTS
017
029
041
053
065
072
084
096
120
For the right angle 053 layout, KNB must be replaced by KXB - (details on page 20)
MoUlding polAriTy
nF c-UTe c 93-424
Mil-c-55302
12
13
16
17
14 54 54
Female plug
15 55 55
Male plug
18 - 56
Tinned female plug*
19 - 57
Tinned male plug*
1A
1b
22
23
eSA/eScc 3401/01601b
Tinned female plug**
Tinned male plug**
Female receptacle
Male receptacle
SpAce grAde
-
-
-
-
46
47
-
-
Tinned female receptacle*
Tinned male receptacle*
Tinned female receptacle**
Tinned male receptacle**
1c - 5A
1d - 5b
24 44 44
25 45 45
26
27
2A
2b
28
29
2c
2d
6
7
TerMinATion STyleS
10
11
20
Through board solder - 90°- length 3 mm
Through board solder - 90°- length 4 mm
Crimp
21
30
40
Double crimp
Through board solder - straight
Solder bucket
51
91
13
Wire wrap
(3 wrapping levels)
Female - male
MoUnTing HArdwAre
gUide STyleS
(consult us for special guides)
1 10
1 11
1 13
1 21
1 23
1 24
Male polarised, transverse mount,
standard plug
Male polarised, vertical mount
Male polarised, float mount
Female polarised, vertical mount
Female polarised, float mount
Female polarised, transverse mount
Male polarised, transverse mount
on receptacle only
Female power or mass contact, vertical
mount
Male unpolarised, transverse mount
Female unpolarised, vertical mount
Male unpolarised, vertical mount
Female unpolarised, vertical mount
1 45
1 90
1 25
1 26
1 27
1 30
1 31
1 32
1 33
1 91
110
110
Male unpolarised, transverse mount
Female unpolarised, transverse mount
Female all polarised, transverse mount
Male power or mass contact, vertical
mount
locKing STyleS
MAle plUg
FeMAle recepTAcle
2
2
2
2
2
0
0
0
1
9
1
3
7
1
0
1/4 turn, free connector
1/4 turn, transverse mount
Jackscrew, free connector
Jackscrew, free connector
Jackscrew, vertical mount
2 02
2 04
2 08
2 10
212
1/4 turn, vertical mount
1/4 turn, transverse mount
Jackscrew, transverse mount
Jackscrew, free connector
2 12
2 15
2 19
2 32
130
Jackscrew, transverse mount
Jackscrew, vertical mount
Jackscrew, vertical mount
Jackscrew, with operation button
* For 90° & straight terminations
(splicing on PCB)
** RoHS compliant for 90° & straight terminations
(splicing on PCB)
3
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