Solder - Kester 48, .031", Flux 66, Lead-free 1 lb Spool

Solder - Kester 48, .031", Flux 66, Lead-free 1 lb Spool

Solder - Kester 48, .031", Flux 66, Lead-free 1 lb Spool image 1
Click to zoom in
In Stock

Lead free solder, Sn96.5Ag3.0Cu0.5, 031" diameter, rosin flux, core 66.

Kester SAC305 48 Activated Rosin Flux for cored solder wire was developed for lead-free applications to enable soldering of most common metals. Kester 48 has performance characteristics far exceeding standard RA fluxes.

Kester 48 builds on the performance of its predecessor Kester 44 with “instant-action” wetting to provide fast and reliable solder joints.


  • Classified as ROM1 per J-STD-004
  • Eliminates the need and expense of cleaning
  • Excellent solderability and fast wetting to a variety of surface finishes
  • Low smoke and odor
  • Low spattering
  • Unparalleled wetting performance


  • Alloy: Sn96.5 Ag3.0 Cu0.5
  • Brand: SAC305
  • Core Type: 3.3% Flux (66)
  • Diameter: 0.031
  • Flux Designator: ROM1
  • Flux Formula: 48
  • Flux Type: Rosin, Activated (RA)
  • Melting Range (°F / °C): 423-424°F / 217-218°C
  • RoHS Info: Lead-Free
  • Weight (lb): 1
Item ID:

Accessory Items:

Product Measurements by Type
AlloySn96.5 Ag3.0 Cu0.5
Core Type3.3% Flux (66)
Flux DesignatorROM1
Flux Formula48
Flux TypeRosin, Activated (RA)
Melting Range217°C - 218°C
Packaging Information
Packaging Dimensions2.5 in. × 2.3 in. × 2.3 in.
Weight (Packaging)1.0648 lbs.

My Project Lists

You must be logged in to add items to a project list.

Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet36.84 KB