Kester 70-4102-0611 Solder Paste, No Clean, Lead Free, Sn63Pb37 T4 89.3% 600g CRT, NP545 Series

product id: 72380

Category: Electronic Production Supplies, Solder & Desolder

Manufacturer: Kester

InstruHub is a leading supplier and reseller of Kester Electronic Production Supplies, Solder & Desolder in Kenya, and we ship to all major cities such as Nairobi & Mombassa


  • High Reliability
  • Consistent print performance to 0.5AR
  • Wide reflow profile window with good solderability
  • Shelf life: 6 month unrefrigerated shelf life and 1 year refrigerated shelf life
  • Low QFN/BGA voiding
  • Compatible with multiple conformal coatings
  • Excellent cosmetics and a clear residue

Kester NP545 is a zero-halogen, lead-free no-clean solder paste formula designed for consistency and repeatability. NP545 is extremely stable and has an unrefrigerated shelf life of 6 months with no print or solderability degradation. NP545 consistently delivers paste transfer efficiencies of 0.55 to 0.5AR. The paste is also fully capable of printing and reflowing 01005 components, even in air reflow, with minimal graping behavior. NP545 is classified as type ROL0 per IPC J-STD-004B.

Alloy Sn63Pb37
Features NP545 is a no-clean formula. The residues do not need to be removed for typical applications. Although NP545 is designed for no-clean applications; its residues can be removed using automated cleaning equipment (in-line or batch) with a variety of readily
Flux Type No Clean
Package Type Jar
Series NP545 Series
Lead Type Lead Free
Volume 600 g
Powder Mesh Size T4
Halogen Content Zero Halogen
Metal % 89.3 %
Package 600G CRT
Shelf Life NP545 has a unrefrigerated shelf life, at a max temperature of 26°C (79°F), of 6 months; however if refrigerated, NP545 should be stabilized at room temperature prior to printing. Shelf life is 1 year from the date of manufacture when handled properly and

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