# Weller WSW SAC L0 T0051388499 Lead-Free Solder Wire, 0.5 mm, 100 g

Weller WSW SAC L0 T0051388499 is lead-free solder wire listed with a 0.5 mm diameter, Sn96.5Ag3.0Cu0.5 alloy and 3.5% flux content. Its fine diameter and continuous flux-core claim may suit detailed hand soldering, while the listing's material field conflicts with the solder-wire description.

- [Original product page](https://bargainpostbox.co.uk/product/weller-wsw-sac-l0-lead-free-solder-wire-0051388499)
- [View offer](https://bargainpostbox.co.uk/visit/weller-wsw-sac-l0-lead-free-solder-wire-0051388499)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Weller
- Model: T0051388499
- Category: Tools & Garden > Hardware & Building Materials
- Price: 25.65 GBP
- Previous price: 30.18 GBP
- Discount: 15%
- Price checked: 2026-11-14T09:53:08.830Z
- Rating: 4.4 / 5
- Reviews: 32

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing identifies a silver-bearing Sn96.5Ag3.0Cu0.5 lead-free alloy and 3.5% flux content.
- Weller claims a continuous flux core and reduced solder splash, with faster, homogeneous wetting also stated in manufacturer material.
- A 0.5 mm wire diameter is suited to controlled feeding where a finer wire is preferred.

## Pros

- Fine 0.5 mm diameter gives the user control over how much solder is fed to a joint.
- Manufacturer claims a continuous flux core and reduced splash, which may help keep soldering work cleaner.

## Specifications

### Identity and format
- Brand: Weller
- Model: T0051388499
- Listed form: Solid, Round
- Shape: wire
- Colour: silver
### Solder details
- Diameter: 0.5 Millimetres
- Alloy: Sn96.5Ag3.0Cu0.5
- Flux content: 3.5%
- Lead status: Lead Free
- Quantity: 100g
### Weight and materials
- Weight listed: 0.22 Pounds
- Material listed: Carbon Steel
- Finish type: Unfinished
- Grade rating: Commercial

## Before you buy

- The listing's 0.5 mm diameter, Sn96.5Ag3.0Cu0.5 alloy, 3.5% flux and 100 g quantity are stated in the title, while its details also list Carbon Steel as the material and omit the alloy and flux fields. Confirm the exact selected item and material description before purchase. Manufacturer performance and splash-reduction statements are claims, not independently verified results.

## In the box

- Solder wire (Included): Manufacturer contents list states one solder wire.

## A good fit for

- Electronics or repair work where a relatively fine 0.5 mm solder wire is useful.
- Buyers seeking the listed lead-free silver-bearing alloy and 3.5% flux content.

## Less suited to

- Buyers who need a confirmed material specification without checking the conflicting listing details.
- Work requiring a different wire diameter, alloy or flux formulation.

## Customer feedback

Aggregate ratings lean positive, with most ratings in the highest star category, but a smaller spread of lower ratings shows experiences are not uniformly positive. These figures do not explain why customers rated it as they did, so they offer limited guidance on soldering results or consistency for a particular job.

## Frequently asked questions

### What alloy does the listing specify?
The title gives Sn96.5Ag3.0Cu0.5 and describes the wire as lead-free. The details separately list Carbon Steel as the material, so confirm the product specification if this distinction matters.
### What is the wire diameter and pack quantity?
The title states a 0.5 mm diameter and 100 g quantity.
### Does it contain flux?
The title lists 3.5% flux content. Manufacturer material also claims a continuous flux core, but that performance statement is not independently verified.

## Alternative options

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- [Utoolmart Solder Wire 1.2mm Dia Tin Silver 100g Electronics Soldering Tools Soldering Tin Wire 1pcs](https://bargainpostbox.co.uk/visit/weller-wsw-sac-l0-lead-free-solder-wire-0051388499)
- [TABIGER 1.0mm 100g Lead Free Solder Wire Rosin Flux Solder for DIY Soldering Project](https://bargainpostbox.co.uk/visit/weller-wsw-sac-l0-lead-free-solder-wire-0051388499)
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## Images

![Weller WSW SAC L0 T0051388499 Lead-Free Solder Wire, 0.5 mm, 100 g — 1](https://bargainpostbox.co.uk/i/9_ElGMKmQ3drlVFFIrx2wB7A1LeCO3QcrOTCRuJawcfElJjokhn8PHCAKZkkeI_bNS0jA4DwWsOWJiBAnlSbUW3hH2ZDTjYlkW5IJEhZMG9tbGg4pk17sOo_.jpg)

![Weller WSW SAC L0 T0051388499 Lead-Free Solder Wire, 0.5 mm, 100 g — 2](https://bargainpostbox.co.uk/i/JqrwX7Qna_sR6B7CGlYdit9Jj3GeDKqahLTgaF1uNXHU7McY0w-mBN-jPqyelbsBrheMfE8GOx2Nn7nDZmYog1GKYY0PEhrXwzndtogLPMDBen5cc3K9jbMe.jpg)

![Weller WSW SAC L0 T0051388499 Lead-Free Solder Wire, 0.5 mm, 100 g — 3](https://bargainpostbox.co.uk/i/2NV03dqpzl7x41oSTzRQ_dK72-otcWQ0JLbxdV6OVnae9D7_b7ESQ-1RmrA3C5CAky3j3m1AJ7rvDnZbS5AXfXzmo2Z9rDZN8qqnRA5GyD4LI-HYan2OMs8-.jpg)

![Weller WSW SAC L0 T0051388499 Lead-Free Solder Wire, 0.5 mm, 100 g — 4](https://bargainpostbox.co.uk/i/K7KdnM6gzFtfl4MCrkT6Q3mzOsDkOS98iTWRv0NoSQGd8Sp8m-6_p1DOo-4WPqsMLMA0n7HrBg1cgv996cybNgK-0gt3DblyK4GXzwONs6cZ9GsnNMDTKC51.jpg)

![Weller WSW SAC L0 T0051388499 Lead-Free Solder Wire, 0.5 mm, 100 g — 5](https://bargainpostbox.co.uk/i/PX8k4hmK-gz5x35HebIv1iPO_KEN4l39B5fyzucFOuQWXuqX3Vl763mf5fyZ4587Fq-AXOZyBntMuaVAvwzA9UBPBIswUCqeUY3cDHlrMDjSx5wgAmz7z3E_.jpg)

![Weller WSW SAC L0 T0051388499 Lead-Free Solder Wire, 0.5 mm, 100 g — 6](https://bargainpostbox.co.uk/i/jL2Z1DwFNEjUnTvCPuZjRW0lynyBBUC8t5AQ-lYJJzzQeBbdo11dREU9iwEvew7anU69QHww7kNEnvF154_iSUp-plikKTXYs2_YIScJfCPHp578F5WYkygT.jpg)

![Weller WSW SAC L0 T0051388499 Lead-Free Solder Wire, 0.5 mm, 100 g — 7](https://bargainpostbox.co.uk/i/RlKfP7WhNspWA0FA3EVoVI_FB3TawIdjJgmnHHW_os2fIeRcrMGkc3AQS2Tgy1Hj4tQP-qhyoZyYw0xEdN7xpvm5pKiREhcCaedGu5MjavP-TgsblZ5ac6Q1.jpg)