ELECTRO-TIN
WITH CLEAR PRESERVATIVE COATING ( ET )
Applicable
Industry Spec: ASTM
B545, K product -CLASS B, SMT product - CLASS A, SR-0, ER-0
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- The
parts shall be capable of passing an adhesion test per
ASTM B545 Appendix X2 and the porosity test per ASTM
B246.
- The
parts shall be aged and then tested for solderability
per ASTM B678.
- Typically,
electro-tin plus clear preservative coating offered
by PEM is .0002" (.0001" for SMT parts) to
minimum of electrodeposited tin applied to all significant
surfaces. Significant surfaces exclude such features
as threads, holes, deep recesses and bases of angles.
- A
clear preservative coating is applied after electro-tin
plating.
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ELECTRO-SOLDER
( ES )
Applicable
Industry Spec: MIL-P-81728
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- The
parts shall be capable of passing an adhesion and solderability
test per MIL-P-81728.
- Typically,
electro-solder offered by PEM is .0002" to minimum
of electrodeposited tin-lead plating applied to all
significant surfaces. Significant surfaces exclude such
features as threads, holes, deep recesses and bases
of angles.
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MATTE
ELECTRO-TIN WITH CLEAR PRESERVATIVE COATING ( DT )
Applicable Industry Spec: ASTM
B545, CLASS A, SR-0, ER-0
|
- The
parts shall be capable of passing an adhesion test per
ASTM B545 Appendix X2 and the porosity test per ASTM
B246.
- The
parts shall be aged and then tested for solderability
per ASTM B678.
- Typically,
electro-tin plus clear preservative coating offered
by PEM is .0001" to minimum of electrodeposited
tin applied to all significant surfaces. Significant
surfaces exclude such features as threads, holes, deep
recesses and bases of angles.
- Parts
are bake annealed at 300° F for 1 hour to deter
Tin Whisker Growth per iNEMI recommendations.
- A
clear preservative coating is applied after electro-tin
plating.
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