Silverleads Profile

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.

**Johanson Technology's P/N's with Solderable Silver (Ag/Pt) Terminations requiring Vacuum Packaging
0433BM15A00010868BM15C00010892DP15B18500892LP07A0136
0896BL14B0500896BM15B00160900BL15A1000900BL15C050
0915BM15A00011200BP44A5751200LP41B05001200LP41C0500
1400BP41A05501810BP07B2001900HP41B05001900HP41C0500
2025LP15A12251905BP18A00502450BM07A00042345FB39A0050
2450BL07A01002450BM15A00152450BM14E00072450BM15B0009
2450BP07A01002450BP08A01002450BP14D01002450BP14E0100
2450BP14F01002450BP15E01002450BP15F01002450BP15Q0100
2450BP39D100E2450BP15V01002450BP39D100C2450FB15A0100
2450BP39F1002500BP15M4002500FB16A04003350BP39A0500
2595FB16A01002600BP14M02003500FB39A00503600BP14M0600
3600BP15M6000896FB15A01005400BP14A09505425BP15A1050
5525BP15B07502450BM08B00032450DP39K54002450DP39L5400
2450BL05A01002450FB15L00012450BM15B00030900PC15A0036
0845BL05A01000900FM15D00392025LP15B01452440AT62A0085
2440AT62B00852450BM14A00212450BP07C01002450BP08B0100
2450BP14G01002450BP14H01002450BP14J01002450FB14B0050
28R0BP44A10005235CR45A01805697CR45A03600900FM15D0039E
5697CR45A0360E2440AT62A0085E2450FB15A050E5235CR45A0180E
4700BP14A0600