ALPHA® Preform Washers

Preform washers are used in PCB assembly, the integration of PCBs into higher level assemblies, as well as the primary solder material for the construction of numerous electronic and electrical devices.

Washer

solder preform washer


OD
Min = .020" (0.51mm)
Max = 3.00" (76.0mm)
ID
Min = .008" (0.2mm)
Max = OD - .010" (0.25mm)
 
T (Thickness)
Min = .002" (0.05mm)
Max = .110" (2.80mm)
 

Solder Washers - Common Alloys

Low Temp RoHS

High Sn RoHS

High Temp

Low Temp

SnBi58

SAC305

Sn5Pb

SnPb37

SnBi57.6Ag0.4

SACX0307

Sn10Pb88Ag2

SnPb36Ag2

 

SnAg4

 

In50Pb50

 

SnSb1

 

 


Alpha provides a wide variety of solder alloys for washers – please inquire


Flux Overview
 Flux Classification
 Historical Flux Classification
Flux Type
 EN 29454
J-STD-004
 DIN 8511
IPC-SF-818
 QQS 571
RS 1
1.1.3
ROL0 F-SW-32
L3CN
R
RS 2.1
1.1.2
ROL1 F-SW-26
M3CN
RMA

RS 2.2

1.1.2
ROL1
F-SW-26
M3CN
RMA
RS 3
1.1.2
ROL1
F-SW-26
L2CN
RA
RS 4
1.1.2
ROM1
F-SW-26
M3CN
RA
RS 6
1.1.2
ROH1
F-SW-26
M3CN
RSA
RS 7
1.1.2
ROH1
F-SW-26
M3CN
RSA

 

 
  
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