Product Information

SN97C

Solder Paste for Printing Grade
Melting Point
218-219℃
Alloy
Sn-Ag-Cu

Products

Product Number SN97C P506 D4 SN97C P608 D4(D5) SN97C P820-5 D4
Variation (D4) (D4・D5) (D4)
Application General-purpose(D4) General-purpose(D4)For micro soldering(D5) Washing unnecessary
Type and Feature Silver-containing12-month shelf life Silver-containingCompletely halogen-freeLow voiding Silver-containingCompletely halogen-freeLow voidingLow residue
Alloy Sn-3.0Ag-0.5Cu Sn-3.0Ag-0.5Cu Sn-3.0Ag-0.5Cu
Melting Point 218-219 218-219 218-219
Flux P506 P608 P820-5
Flux Category ROM1(ROL1) ROL0 ROL0
Presence of Halogen Elements Yes Completely halogen-free Yes
Particle Size D4 (Type 4):20-38µm D4 (Type 4):20-38µm / D5 (Type 5):10-25µm D4 (Type 4):20-38µm

SN97C P506 D4

  • General-purpose / For micro soldering
  • Silver-containing / 12-month shelf life

Easy to use with a nice finish. Ideal for a wide range of soldering applications.

General-purpose, lead-free solder paste suitable for a wide range of soldering applications. Its stable viscosity makes it possible to maintain consistent print quality even when repeating storage (refrigeration) followed by use after adding at room temperature. It contains a silver-free, high strength alloy.
 
- Good quality in repeated printing
- Good wetting
- Prevents chip-side balls

Good wetting at the lead end face

Good wetting at the lead end face

Photo (Left) : SOT23-3 pin
Photo (Right) : 0.4-mm pitch QFP
 
Exhibits good wetting in unplated lead terminals too, forming nice fillets from the base to tip.

SN97C P608 D4 (D5)

  • General-purpose / For micro soldering
  • Silver-containing / Completely halogen-free / Low voiding

Both environmentally friendly (completely halogen-free) and reliable (low voiding)

Reduces voiding compared to conventional products

Reduces voiding compared to conventional products

Completely halogen-free solder paste that reduces voids, which cause critical problems in mounting. It exhibits wetting equivalent to or better than that of halogen-containing products. It contains a silver-free, high strength alloy.
 
Picture (Left) : conventional product used (x-ray photo taken after reflow)
Picture (Right) : P608 used (x-ray photo taken after reflow)

SN97C P820-5 D4

  • Washing unnecessary
  • Silver-containing / Completely halogen-free / Low voiding / Low residue

Makes the washing process after reflow unnecessary because it eliminates flux residue

SEM/EDS mapping analysis of soldering joint

SEM/EDS mapping analysis of soldering joint

Low-residue solder paste that minimizes flux residue. As it eliminates residue, the washing process after mounting is unnecessary. It contains only a small amount of components that gasify when melting, which helps prevent voiding as well.
Photo : We did not detect any organic substances (carbon) remaining as flux residue.