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High voltage contacts
 
 
 
SILVER TIN OXIDE/SILVER TIN OXIDE INDIUM OXIDE
  
AgSnO2 is the best material for substitution of AgCdO. It has very good welding resistance and arc erosion resistance, and has been widely applied to contactors, universal relays, magnetic latching relays and automobile relays.
AgSnO2In2O3, with 3 - 5% of In2O3, can have better resistance against material transfer under DC load conditions, and is suitable for application in the field of automobile relays.

Mechanical and Physical Properties of the Materials

Designation

Material

Density
g/cm3

Resistivity
¦Ì¦¸¡¤cm

Hardness
HV 0.3

Tensile
Strength
MPa

Elongation
%

Applications
STA07
AgSnO2(12)
9.75
2.25
70~80
250~270
20
AC contactors
STA08
AgSnO2(12)
9.75
2.25
75~90
270~300
20
STA09
AgSnO2(14)
9.65
2.35
80~100
290~320
15
STC05
AgSnO2(10)
9.85
2.15
80~90
290~320
20
Middle and small relays and switches
STC08
AgSnO2(12)
9.80
2.20
90~110
300~330
20
magnetic latching relays, AC contactors, and leakage protection devices
STC09
AgSnO2(12)
9.75
2.25
90~110
280~300
20
STC15
AgSnO2(14.5)
9.60
2.45
85~100
280~310
18
STC16
AgSnO2(16)
9.50
2.50
80~100
280~300
20
STC17
AgSnO2(12)
9.75
2.25
80~95
280~310
25
STD05
AgSnO2(10)
9.85
2.15
90~110
230~260
28
Middle and small universal relays
STD08
AgSnO2(12)
9.75
2.25
85~100
270~300
25
SIE06
AgSnO2(7)In2O3(3)
9.90
2.15
80~90
300~330
28
Automobile relays and universal relays
SIE08
AgSnO2(8)In2O3(4)
9.80
2.25
90~100
310~340
25
SIE09
AgSnO2(10)In2O3(4.5)
9.65
2.35
95~110
320~350
23

Microsections

 

STA08 200X¡¡crosswise

STC09 200X¡¡crosswise

STD05 200X¡¡crosswise

SIE08 200X¡¡crosswise

 

STA08 200X¡¡lengthways

STC09 200X¡¡lengthways

STD05 200X¡¡lengthways

SIE08 200X¡¡lengthways

 

AgSnO2/Ag 100X

 

AgSnO2/Ag/Cu 100X

 

AgSnO2/Ag/L-Ag15P 100X
 
 
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