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Storage Sensitive Material Technical Note and Soldering profile for components with Silver Leads/Pads

Abstract:
This technical note applies to components that require storage in Vacuum Sealed Bags due to Silver Platinum (AgPt) terminations or contacts.

Storage:
Silver Leaded components should not be exposed to moisture and air contaminants, such as sulfur and chlorine, which may adversely affect device solderability and electrical performance
The appearance of lead/pad tarnish can range from a slight discoloration of the leads to leads turning completely black.
Vacuum packaging is mandatory if device soldering will not occur within 168 hours after opening the Johanson Technology vacuum pack. If cumulative exposure outside a vacuum sealed container is 168 hours or longer, it may adversely affect the components’ solderability and electrical performance; therefore, AgPt leaded parts require vacuum sealing during periods of storage. It is recommended that a control log of exposure to air be maintained.
As preventative measure, a desiccant is placed at the bottom corner of every vacuum sealed bag at time of shipment.
A Caution label (Figure 1) is placed on the outside of the vacuum bag and on the reel to make the user aware of the special handling and storage conditions.
The shelf life of the packaged component is 18 months

Silverlead Caution message

Soldering Profile:
Typical Soldering Profile for Solderable Silver (Ag) Terminated Components:**

solder profile graph

**Johanson Technology’s P/N’s with Solderable silver Terminations. For a list of applicable part numbers go to: http://www.johansontechnology.com/typical-soldering-profile.html

**Johanson Technology's P/N's with Solderable Silver (Ag/Pt) Terminations requiring Vacuum Packaging
0200FA18A02000300LA15A03000400FA15A04000400FA18A0400
0400LP15A01000433BM15A00010866BL15C2000868BM15C0001
0869LD14A18100892DP15A19400892DP15B18500892FB15A0100
0892LP07A01360896BL14B0500896BM15A00010896BM15A0025
0896BM15B00160900BL15A1000900BL15C0500915BM15A0001
1000ED18A00011200BP44A5751200LP41B05001200LP41C0500
1400BP41A05501810BP07B2001900HP41B05001900HP41C0500
2025LP15A12251905BP18A00501906BP18C0271906BP39B027
2450BM07A00042345FB39A00502350FB39A00502450BL07A0100
2450BM15A00152450BM14_00072450BM14A00042450BM15B0009
2450BP07A01002450BP08A01002450BP15D01002450BP14D0100
2450BP14E01002450BP14F01002450BP15J01002450BP15E0100
2450BP15F01002450BP15G01002450BP15U01002450BP15K0100
2450BP15Q01002450BP39D100E2450BP15V01002450BP39D100B
2450BP39D100C2450FB15A01002450BP39F1002450DP15R5400
2450DP15S54002500BP15M4002500FB16A04003350BP39A0500
2595FB16A01002595FB39A00502600BP14M02003550FB39B0050
3500FB16A01003500FB39A00503550BP14A05005375BP15A0950
3600BP14M06003600BP14N06003600BP15M6000896FB15A0100
5400BP14A09505425BP15A10505525BP15B07502450BM08B0003
2450DP39K54002450DP39L5400