In newer automotive applications, operating temperatures and power
throughput are steadily increasing. Most of today’s terminals designed for such
demanding applications are made of beryllium copper which is very expensive.
Zierick’s response is a new family of economically priced High Performance
Terminals. These components can operate at higher temperatures and have a
higher current rating than their standard equivalents.
They are stamped from an alloy with high temperature, high conductivity and
improved stress relaxation properties. The stress relaxation feature is far superior
to that of cartridge brass in elevated temperatures and heating applications.
This material easily lends itself to being used with our existing tooling
and fabrication methods with little or no additional cost to the custom
receptacle is required.
Stress relaxation is a critical inherent property of the material since the spring
design feature in many receptacles is needed to maintain reliable connections
at elevated temperatures. The tables below illustrate the various physical
attributes of Alloy C7025.
| Alloy C7025 Physical Properties |
| Physical Properties |
English Units |
Metric Units |
| Melting Point (Liquids) |
2003°F |
1095°C |
| Melting Point (Solids) |
1967°F |
1075°C |
| Density |
.318 lbs/cu in @ 68°F |
8.82 gm/cu cm |
| Thermal Conductivity |
85-110 Btu ft/sq ft hr °F @ 68°F |
0.35-0.45 cal cm/sq cm sec °C @ 20°C |
| Electrical Resistivity |
25.9 ohms (cir mil/ft) |
4.3 microhm-cm @ 20°C |
| Modulus of Elasticity |
19,000,000 psi |
13,500 kg/sq mm |
| Electrical Conductivity |
| |
TR02 |
40% IACS* Min. @ 68°F |
0.23 megmho/cm @ 20°C |
|
TM00 |
40% IACS* Min. @ 68°F |
0.17 megmho/cm @ 20°C |
|
TM02 & TM02 Special |
40% IACS* Min. @ 68°F |
0.23 megmho/cm @ 20°C |
|
TM03 |
35% IACS* Min. @ 68°F |
0.20 megmho/cm @ 20°C |
|
TH03 |
50% IACS* Min @ 68°F |
0.29 megmho/cm @ 20°C |
*International Annealed Copper Standard |
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| These Universal Tab
Receptacles mate with a range of tabs from .025" to .032" thick and widths from .062" wide and larger. They have low insertion forces and are forgiving for mating misalignment. |
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| Zierick's Through Hole Insulation Displacement Connector has a built-in wire strain relief which prevents wire motion from transmitting to the contact interface. |
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| The SMT Box Receptacle mates, top entry, with a pin from .032" diameter round or square up to .090" round or square, and can also be placed upside down on the board to mate with a through-board pin. |
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| All high performance terminals are a special order. Please call Zierick for more information. |
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Surface Mount Connectors
Through Hole Connectors
