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Lead Free Solder Pastes


Available Alloys: SnAgCu, SnAg, SnAgBi, SnAgBiCu - Please see below for more details


Alloy: SnAgCu

No Clean

F 640
F 640 Solder Paste series is a state-of-the-art lead free no clean solder paste that promotes wetting and minimises soldering defects.

The F 640 Series exhibits minimal slump and has excellent print-after-wait performance.This formula provides superior performance on a variety of surface finishes and leaves behind a clear residue. Reflow can be accomplished in air or nitrogen.

Key Benefits of F 640:

- exceptional print to print consistency
- excellent wetting
- min. 8 hour tack and work life
- very good print after wait performance
- SIR 85/85 > 10E10 Ohm
- constant performance at 30°C for 7days
- work conditions between 20 and 32°C
- Fulfils Siemens Standard accord. DIN EN 29454 Part 1
- Passes J-STD-004

Datasheet
Technical Information on F 640


F 620
F 620 Solder Paste series is a lead free no clean solder paste that promotes wetting and minimizes soldering defects. The F 620 flux system is specifically optimized for Sn/Ag/Cu and SnAg alloy soldering.

Key Benefits of F 620:

· Exceptional print to print consistency
· Excellent wetting
· 8 hour tack and work life
· Very good print after wait performance
· Fulfils
Siemens Norm accord. DIN EN 29454 Part 1
· Passes IPC Norm (see
Trace Lab report from Apr.04)

Datasheet

Technical Information on F 620



Water Soluble:


F 540
is a custom designed water soluble solder paste. Optimized rheology and careful chemical selection result in consistent print volume and excellent print definition.

Advantages
    • Easy cleaning
    • Excellent wetting
    • Minimal voiding
    • Excellent print characteristics
Datasheet
Reflow profile




Alloy: SnAg

No Clean

F 360
- The pastes of the F 360 series are halide-free no clean solder pastes sucessfully used in the electronics industry for many years.

Advantages:
    • Available with SnAg3.5, SnBi58, SnPb and SnPbAg
    • Low, clean residues
Datasheet
Reflow Profile (Ag35)
Cleaning soldered / unsoldered

F 381
- The solder pastes of the F381 Series comprise a ready-to-use homogeneous mixture with low odour characteristics, consisting of metal powders, binders, solvents, fluxes and thixotropic agents.

Datasheet



Water Soluble


F 540
is a custom designed water soluble solder paste. Optimized rheology and careful chemical selection result in consistent print volume and excellent print definition.

Advantages
    • Easy Cleaning
    • Excellent Wetting
    • Minimal Voiding
    • Excellent print characteristics
    Datasheet
    Reflow profile (Ag3.5)

    Alloy: SnBi






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