Attleboro, MA
Fairfield, OH Mexico City
Foshan City, China


Press Release: Precision Engineered Products, LLC (PEP) announces the establishment of its new European sales office, PEP-Euro.

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pep

A Subsidiary of Precision Engineered Products LLC



48 Frank Mossberg Drive
Attleboro, MA 02703
P: 508.226.1200
F: 508 226.8703


Contact Materials

Material
Density
(OzT/in^2)
Electrical Conductivity
(%IACS)

Approx
Annealed
15T

Hardness
Hard
15T

 Desireable Properties Typical Applications

Fine Silver
99.9Ag

5.54
105
30
75
Highest electrical & thermal conductivity, low contact resistance, operates at low contact force
Appliance and heating thermostats, light duty switches and controls (AC & DC)
Silver Cadmium-Oxide
90Ag,10CdO
86.5Ag,13.5CdO
85Ag,15CdO

5.44
5.37
5.30

82
76
72

53
54
55

75
76
77
High conductivity, arc quenching properties, resists sticking, low arc erosion, high current carrying capability
Medium to heavy duty switches & controls, wall switches, motor starters, DC switches & relays, AC & DC circuit breakers, motor protectors

Silver Tin-Oxide
92Ag,8SnO2
90Ag,10SnO2
88Ag,12SnO2


5.31
5.24
5.16

86
82
77

56
60
66

73
77
82
High conductivity, resists sticking, very low arc erosion, high current carrying capability
Automotive switches & relays, medium to heavy duty switching devices
Silver Nickel
90Ag,10Ni
85Ag,15Ni

5.44
5.39

89
82

51
53

72
73
High conductivity, resists sticking, operates at fairly low contact force

Medium duty AC switches & relays, general purpose switching devices
Coin Silver
90Ag,10Cu
5.43
85
70
84
Increased hardness, lower cost
Automotive switches & relays, sliding contacts, light duty switches & controls
75Ag,24.5Cu,0.5Ni
5.27
75
78
88
Low cost, increased hardness even at high operating temperatures, low material transfer
Automotive & other low voltage DC devices
85Ag, 15Cd

5.36
35
45
84
Increased hardness, low material transfer, resists sticking
Automotive relays, DC motor controls & other DC devices with high surge currents
90Ag, 10Pd

5.57
27
63
80
Low contact resistance, operates with low con-tact force, resists sulfide formation
Light duty relays, alarms, AC & DC devices
72Ag, 28Cu

5.24
84
79
85
Low cost, relatively low contact resistance, good machining and spring properties
Medium duty relays and switches
90Ag, 10Fe

5.37
90
54
74
High conductivity, resists sticking, low contact resistance
Thermostats, light force medium duty switches
75Au, 25Ag

9.12
16
45
77
Low contact resistance, operates with low contact force, resists oxidation and other film formation
Connectors, dry circuit to light duty relays and switches, high reliability devices
69Au, 25Ag, 6Pt

8.39
10
70
84
Excellent corrosion resistance, excellent wear resistance
Dry circuit to light duty switches and relays, sliding contacts, high reliability devices
35Pd, 30Ag, 10Au,
10Pt, 14Cu, 1Zn
6.13
5
90
94
Age hardened brush alloy, excellent wear resist-ance, very good corrosion resistance
Sliding contacts, potentiometers
44Pd, 38Ag, 16Cu,
1Pt, 1Ni
5.69
6
90
94
Age hardened brush alloy, excellent wear resist-ance, good corrosion resistance
Sliding contacts, potentiometers