Weller WSW SAC M1 Lead-Free Solder Wire with Silver and Copper - Mild Flux

Weller Brand: Weller

Weller WSW SAC M1 is a Lead-Free Solder Wire with 3% Silver and 0.5% Copper. It contains 3.5% mildly activated, no-clean flux cores.

  • Composition 3% Silver (Ag), Copper (Cu) 0.5%, remainder Tin (Sn)
  • Melting point 217 to 221°C
  • Mildly activated, no-clean flux cores (3.5%)
  • Available in a range of wire diameters and spool weights
Description Image Product Buy Pricing (Ex VAT) Weight Wire Diameter Wire Gauge (SWG) Flux Type Leaded / Lead-Free Melting Temperature Solder Alloy Type
Weller T0051388199 WSW SAC M1 96.5/3/0.5 Solder Wire 0.3mm 100g
Weller T0051388199 WSW SAC M1 96.5/3/0.5 Solder Wire 0.3mm 100g
Standard range
Order code: 85-6524
MPN: T0051388199

Despatched same day - 4 in stockAdditional quantity lead time 3 weeks
1+ £31.14
5+ £30.14
Price per unit Ex VAT 		100g 0.30mm 31 No clean Lead-free 217°C Sn96.5Ag3Cu0.5 Wire
Weller T0051388299 WSW SAC M1 96.5/3/0.5 Solder Wire 0.5mm 100g
Weller T0051388299 WSW SAC M1 96.5/3/0.5 Solder Wire 0.5mm 100g
Standard range
Order code: 85-6522
MPN: T0051388299

Despatched same day - 11 in stockAdditional quantity lead time 3 weeks
1+ £26.62
5+ £26.38
Price per unit Ex VAT 		100g 0.50mm 25 No clean Lead-free 217°C Sn96.5Ag3Cu0.5 Wire
Weller T0051388599 WSW SAC M1 96.5/3/0.5 Solder Wire 0.8mm 250g
Weller T0051388599 WSW SAC M1 96.5/3/0.5 Solder Wire 0.8mm 250g
Extended range
Order code: 85-6528
MPN: T0051388599

Available to back orderBack-order availability date - 10/08/2026
1+ £54.21
5+ £53.30
Price per unit Ex VAT 		250g 0.8mm 21 No clean Lead-free 217°C Sn96.5Ag3Cu0.5 Wire
Weller T0051388699 WSW SAC M1 96.5/3/0.5 Solder Wire 1.0mm 250g
Weller T0051388699 WSW SAC M1 96.5/3/0.5 Solder Wire 1.0mm 250g
Extended range
Order code: 85-6526
MPN: T0051388699

Available to back orderBack-order availability date - 10/08/2026
1+ £56.64
Price per unit Ex VAT 		250g 1mm 19 No clean Lead-free 217°C Sn96.5Ag3Cu0.5 Wire
Weller T0051386599 WSW SAC M1 96.5/3/0.5 Solder Wire 0.3mm 500g
Weller T0051386599 WSW SAC M1 96.5/3/0.5 Solder Wire 0.3mm 500g
Extended range
Order code: 85-6540
MPN: T0051386599

Available to back orderBack-order availability date - 10/08/2026
1+ £122.55
5+ £121.20
Price per unit Ex VAT 		500g 0.30mm 31 No clean Lead-free 217°C Sn96.5Ag3Cu0.5 Wire
Weller T0051386499 WSW SAC M1 96.5/3/0.5 Solder Wire 0.5mm 500g
Weller T0051386499 WSW SAC M1 96.5/3/0.5 Solder Wire 0.5mm 500g
Extended range
Order code: 85-6538
MPN: T0051386499

Available to back orderBack-order availability date - 10/08/2026
1+ £117.67
5+ £117.00
Price per unit Ex VAT 		500g 0.50mm 25 No clean Lead-free 217°C Sn96.5Ag3Cu0.5 Wire
Weller T0051386399 WSW SAC M1 96.5/3/0.5 Solder Wire 0.8mm 500g
Weller T0051386399 WSW SAC M1 96.5/3/0.5 Solder Wire 0.8mm 500g
Extended range
Order code: 85-6536
MPN: T0051386399

Available to back orderBack-order availability date - 10/08/2026
1+ £104.70
5+ £104.13
Price per unit Ex VAT 		500g 0.8mm 21 No clean Lead-free 217°C Sn96.5Ag3Cu0.5 Wire
Weller T0051386299 WSW SAC M1 96.5/3/0.5 Solder Wire 1.0mm 500g
Weller T0051386299 WSW SAC M1 96.5/3/0.5 Solder Wire 1.0mm 500g
Extended range
Order code: 85-6534
MPN: T0051386299

Available to back orderBack-order availability date - 10/08/2026
1+ £99.82
5+ £99.02
Price per unit Ex VAT 		500g 1mm 19 No clean Lead-free 217°C Sn96.5Ag3Cu0.5 Wire
Weller T0051386199 WSW SAC M1 96.5/3/0.5 Solder Wire 1.2mm 500g
Weller T0051386199 WSW SAC M1 96.5/3/0.5 Solder Wire 1.2mm 500g
Extended range
Order code: 85-6532
MPN: T0051386199

Available to back orderBack-order availability date - 10/08/2026
1+ £93.24
5+ £92.70
Price per unit Ex VAT 		500g 1.2mm 18 No clean Lead-free 217°C Sn96.5Ag3Cu0.5 Wire
Weller T0051386099 WSW SAC M1 96.5/3/0.5 Solder Wire 1.6mm 500g
Weller T0051386099 WSW SAC M1 96.5/3/0.5 Solder Wire 1.6mm 500g
Extended range
Order code: 85-6530
MPN: T0051386099

Available to back orderBack-order availability date - 10/08/2026
1+ £99.82
5+ £99.25
Price per unit Ex VAT 		500g 1.6mm 16 No clean Lead-free 217°C Sn96.5Ag3Cu0.5 Wire

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