W58-124-9019910 Datasheet, PDF (26/28 Pages) ITT Industries – QT-BNC Connector To Tooling Cross Reference

Cannon 75 Ohm Connectors
Product Safety Information
THIS NOTE MUST BE READ IN CON-
JUNCTION WITH THE PRODUCT DATA
SHEET/CATALOG. FAILURE TO
OBSERVE THE ADVICE IN THIS INFOR-
MATION SHEET AND THE OPERATING
CONDITIONS SPECIFIED IN THE PROD-
UCT DATA SHEET/ CATALOG COULD
RESULT IN HAZARDOUS SITUATIONS.
1. MATERIAL CONTENT AND PHYSICAL
FORM
Electrical connectors do not usually contain
hazardous materials. They contain conduct-
ing and non-conducting materials and can be
divided into two groups.
a) Printed circuit types and low cost audio
types which employ all plastic insulators and
casings.
b) Rugged, Fire Barrier and High Reliability
types with metal casings and either natural
rubber, synthetic rubber, plastic or glass
insulating materials. Contact materials vary
with type of connector and also application
and are usually manufactured from either:
Copper, copper alloys, nickel, alumel,
chromel or steel. In special applications,
other alloys may be specified.
2. FIRE CHARACTERISTICS AND ELEC-
TRIC SHOCK HAZARD
There is no fire hazard when the connec-
tor is correctly wired and used within the
specified parameters. Incorrect wiring or
assembly of the connector or careless
use of metal tools or conductive fluids, or
transit damage to any of the component
parts may cause electric shock or burns.
Live circuits must not be broken by sepa-
rating mated connectors as this may
cause arcing, ionization and burning.
Heat dissipation is greater at maximum
resistance in a circuit. Hot spots may occur
when resistance is raised locally by damage,
e.g. cracked or deformed contacts, broken
strands of wire. Local overheating may also
result from the use of the incorrect applica-
tion tools or from poor quality soldering or
slack screw terminals. Overheating may
occur if the ratings in the product Data
Sheet/Catalog are exceeded and can cause
breakdown of insulation and hence electric
shock. If heating is allowed to continue it
intensifies by further increasing the local
resistance through loss of temper of spring
contacts, formation of oxide film on contacts
and wires and leakage currents through car-
bonization of insulation and tracking paths.
Fire can then result in the presence of com-
bustible materials and this may release nox-
ious fumes. Overheating may not be visually
apparent. Burns may result from touching
overheated components.
3. HANDLING
Care must be taken to avoid damage
to any component parts of electrical connec-
tors during installation and use. Although
there are normally no sharp edges, care
must be taken when handling certain compo-
nents to avoid injury to fingers. Electrical
connectors may be damaged in transit to the
customers, and damage may result in cre-
ation of hazards. Products should therefore
be examined prior to installation/use and
rejected if found to be damaged.
4. DISPOSAL
Incineration of certain materials may release
noxious or even toxic fumes.
5. APPLICATION
Connectors with exposed contacts should
not be selected for use on the current supply
side of an electrical circuit, because an elec-
tric shock could result from touching exposed
contacts on an unmated connector. Voltages
in excess of 30 V ac or 42.5 V dc are poten-
tially hazardous and care should be taken to
ensure that such voltages cannot be trans-
mitted in any way to exposed metal parts of
the connector body. The connector and
wiring should be checked, before making
live, to have no damage to metal parts or
insulators, no solder blobs, loose strands,
conducting lubricants, swarf, or any other
undesired conducting particles. Circuit resist-
ance and continuity check should be made to
make certain that there are no high resist-
ance joints or spurious conducting paths.
Always use the correct application tools as
specified in the Data Sheet/Catalog. Do not
permit untrained personnel to wire, assemble
or tamper with connectors. For operation
voltage please see appropriate national reg-
ulations.
IMPORTANT GENERAL INFORMATION
(i) Air and creepage paths/Operating volt-
age. The admissible operating voltages
depend on the individual applications and the
valid national and other applicable safety
regulations.
For this reason the air and creepage path
data are only reference values. Observe
reduction of air and creepage paths due to
PC board and/or harnessing.
(ii) Temperature
All information given are temperature limits.
The operation temperature depends on the
individual application.
(iii) Other important information
Cannon continuously endeavors to improve
their products. Therefore, Cannon products
may deviate from the description, technical
data and shape as shown in this catalog and
data sheets.
“Engineered for life” is a registered trade-
mark of ITT Corporation ©2007. All other
trademarks or registered trademarks are
property of their respective owners. All data
subject to change without notice.
Product Warranty
ITT Electronic Components, a Division of ITT
Corporation manufactures the highest quality
products available in the marketplace; how-
ever these products are intended to be used
in accordance with the specifications in this
publication. Any use or application that devi-
ates from the stated operating specifications
is not recommended and may be unsafe. No
information and data contained in this publi-
cation shall be construed to create any liabil-
ity on the part of Cannon. Any new issue of
this publication shall automatically invalidate
and supersede any and all previous issues. A
limited warranty applies to Cannon products.
Except for obligations assumed by Cannon
under this warranty, Cannon shall not be
liable for any loss, damage, cost of repairs,
incidental or consequential damages of any
kind, whether or not based on express or
implied warranty, contract, negligence or
strict liability arising in connection with the
design, manufacture, sale, use or repair of
the products. Product availability, prices and
delivery dates are exclusively subject to our
respective order confirmation form; the same
applies to orders based on development
samples delivered. This publication is not to
be construed as an offer. It is intended mere-
ly as an invitation to make an offer. By this
publication, Cannon does not assume
responsibility or any liability for any patent
infringements or other rights of third parties
which may result from its use. Reprinting this
publication is generally permitted, indicating
the source. However, Cannon's prior consent
must be obtained in all cases.
Dimensions shown in mm (inch)
Specifications and dimensions subject to change
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