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
0433BM15A00010868BM15C00010892DP15B18505235CR45A0180E
0892LP07A01360896BL14B0502450FB15A050E0896BM15B0016
0900BL15A1000900BL15C0500915BM15A00011200BP44A575
1200LP41B05001200LP41C05001400BP41A05501810BP07B200
1900HP41B05001900HP41C05002025LP15A12251905BP18A0050
2440AT62A0085E2450BM07A00042345FB39A00502450BL07A0100
2450BM15A00152450BM14E00072450BL05A01002450BM15B0009
2450BP07A01002450BP08A01002450BP14D01002450BP14E0100
2450BP14F01002450BP15E01002450BP15F01002450BP15Q0100
2450BP39D100E2450BP15V01002450BP39D100C2450FB15A0100
2450BP39F1005697CR45A0360E2500BP15M4002500FB16A0400
3350BP39A05002595FB16A01002600BP14M02000900FM15D0039E
3500FB39A00503600BP14M06003600BP15M6000896FB15A0100
5400BP14A09505425BP15A10505525BP15B07502450BM08B0003
2450DP39K54002450DP39L54002450FB15L00012450BM15B0003
0900PC15A00360845BL05A01000900FM15D00392025LP15B0145
2440AT62A00852440AT62B00852450BM14A00212450BP07C0100
2450BP08B01002450BP14G01002450BP14H01002450BP14J0100
2450FB14B005028R0BP44A10005235CR45A01805697CR45A0360