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ID1014

更新时间: 2024-11-10 23:57:47
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描述
White Bronze

ID1014 数据手册

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1307057  
White Bronze  
M/A-COM’s White Bronze is similar in composition  
and performance to other copper/tin/zinc alloys  
High Quality Surface Plating &  
Excellent Intermodulation  
®
developed in the industry such as Sucoplate and BBR.  
Comprehensive conditioning tests have been  
performed to provide a thorough evaluation of  
M/A-COM’s White Bronze plated connector bodies. The  
tests were performed to the specifications of the  
European and International RF connector standards —  
CECC 22000/IEC 68-2-14/IEC 169-1. The results are  
summarized on page 3.  
Performance for RF-Connectors  
Introduction  
M/A-COM’s new White Bronze surface finish  
represents a dramatic improvement upon the wear  
characteristics and life expectancy of silver plating, at the  
same time offering a far better electrical performance  
than nickel. White Bronze plated connectors exhibit  
intermodulation characteristics significantly better than  
stainless steel or nickel plated products. Silver has  
always been the preferred finish from an electrical  
standpoint but its corrosion and wear characteristics  
especially in harsh conditions are often unacceptable.  
While nickel is an extremely rugged finish it has  
properties undesirable in many RF applications;  
including, high RF and insertion losses, poor  
intermodulation performance, high permeability and  
poor screening effectiveness.  
Deposit Characteristics  
Composition: Copper (55-60%), Tin (20-25%),  
Zinc (15-20%)  
7.9-8.1 g/cm  
300-380 HV  
3
Density:  
Hardness:  
Passivation: Immersion Chrome  
Advantages  
The M/A-COM White Bronze finish offers the  
following advantages:  
M/A-COM’s White Bronze is composed of copper, tin  
and zinc which are applied simultaneously to  
produce a finished color similar to stainless steel. With  
one of the most advanced industrial electroplating  
facilities in the world M/A-COM can achieve the levels  
of control over the complex galvanic process necessary in  
the application of this alloy.  
• low intermodulation  
• high corrosion resistance  
• low porosity  
• low RF losses  
• non magnetic  
• wear & scratch resistant  
Low Intermodulation Products  
Dissimilar metals, finishes and discontinuities within  
a coaxial line structure give rise to intermodulation  
products (IMP). This is of particular concern in  
applications requiring low levels of intermodulation,  
such as cellular base stations and antennas. White Bronze  
plated connectors offer better IMP performance and  
lifetime characteristics than nickel. Due to the similarity  
of electrolytic potentials and the non magnetic properties  
of the finish, levels of intermodulation are commensurate  
with silver and far in excess of stainless steel/nickel  
connectors. At the same time the excellent wear  
characteristics and durability of the finish ensure that the  
intermodulation life of the connector is greater than  
M/A-COM’s industrial electroplating facilities is one of the most  
advanced in the world.  
V5.00  
M/A-COM Division of AMP Incorporated North America: Tel. (800) 366-2266, Fax (800) 618-8883 Asia/Pacific: Tel. +85 2 2111 8088, Fax +85 2 2111 8087  
Europe: Tel. +44 (1344) 869 595, Fax +44 (1344) 300 020  
www.macom.com  
AMP and Connecting at a Higher Level are trademarks.  
Specifications subject to change without notice.  

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