Kester NP505-LT

Sn42/Bi57/Ag1 Lead-Free, Halogen-Free No-Clean Solder Paste

Lead-Free

Classified as ROL0 per IPC J-STD-004B
Zero-halogen
Shelf Life 6 months from date of manufacture when refrigerated
Low reflow peak temperatures 175 to 215 °C
Reduces reflow temperatures improving efficiency in energy and cost
Reduction in board-to-package warpage
Low voiding potential under QFN
Wide reflow profile window with gold solderability on various PCB surface finish
Excellent activity and printability
Extremely stable paste properties
Colorless residues for easy post-reflow inspection
Non-stocked Kester items may be subject to minimum orders.

Grouped product items
Product Name	Qty
Kester 70-4003-2110 Sn42/Bi57/Ag1 Lead-Free, No-Clean 89.0% T4 Solder Paste, 500g Jar (Box of 10) $1,295.16
Kester 70-4003-2111 Sn42/Bi57/Ag1 Lead-Free, No-Clean 89.0% T4 Solder Paste, 600g Cartridge (Box of 10) $1,554.19

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Technical Documents

Product Info & TDS Sheets

Kester NP505-LT Solder Paste Data Sheet

SDS/MSDS Sheets

Kester NP505-LT Solder Paste Safety Data Sheet (SDS)

Warranty

Kester Product Warranty

Details

NP505-LT is a no-clean, Pb-free, zero-halogen solder paste for assemblies that have temperature sensitive substrates and components. Warping is becoming more evident with the trend towards complex boards and the trend of using thinner and larger packages and boards. The defects caused by the warpage may decrease board reliability and increase in rework. NP505-LT is designed to reduce warpage inherent to board-to-package. NP505-LT is classified ROL0.

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