90In / 7Sn / 3Ag Lead-Free Indium Solder Wire

90In / 7Sn / 3Ag Lead-Free Indium Solder Wire
90In / 7Sn / 3Ag lead-free indium solder wire is a flux-coated indium-rich solder wire for convenient low-temperature soldering. It is suitable for electronics assembly, low-temperature soldering, rework, bonding, and customized soldering processes where alloy composition, wire diameter, and flux form need to be matched carefully.
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90In / 7Sn / 3Ag Lead-Free Indium Solder Wire

An indium-rich, flux-coated lead-free solder wire developed for controlled low-temperature joining, precision electronics and specialty bonding processes.

In90Sn7Ag3Indium-rich alloy
Flux-CoatedConvenient soldering
Lead-FreeSpecialty joining
90In / 7Sn / 3Ag Lead-Free Indium Solder Wire
90In / 7Sn / 3Ag Indium Solder Wire

Indium-rich solder wire for controlled low-temperature joining

The high indium content supports soft joint behavior and lower-temperature processing compared with conventional tin-rich solder systems. Its flux-coated format is intended to simplify manual soldering and engineering evaluation where thermal stress, delicate substrates and controlled solder flow matter.

01

Indium-Rich Composition

High indium content supports soft, compliant solder joints for specialty assemblies.

02

Flux-Coated Format

External flux coating helps simplify operation during controlled manual soldering.

03

Reduced Thermal Stress

Suitable for applications where lower process temperature can help protect sensitive parts.

04

Precision Bonding

Designed for small joints, specialty interfaces and carefully controlled solder volume.

05

Lead-Free Alloy

Provides a lead-free option for electronics and specialized joining requirements.

06

Custom Supply Options

Diameter, packaging and supply form can be matched to evaluation or production needs.

Product Specifications

Core alloy, wire form and packaging information for engineering review and quotation.

Recommended Use

Recommended for low-temperature manual soldering, optical assemblies, sensors, precision electronics and specialty bonding evaluation.

Product Name
90In / 7Sn / 3Ag Lead-Free Indium Solder Wire
Alloy Composition
In90 / Sn7 / Ag3
Alloy Family
Indium-Tin-Silver
Melting Point
Confirm by product specification
Wire Diameter
Custom diameter available
Wire Form
Flux-coated wire
Flux Option
External flux coating
Packaging
Tube, spool or export carton; customized by order
Typical Applications
Optical Modules, Sensors & Detectors, Precision Electronics, Specialty Bonding

Typical Applications

Application suitability should be confirmed against substrate finish, flux chemistry, heating profile and reliability requirements.

Application 01Optical Modules
Application 02Sensors & Detectors
Application 03Precision Electronics
Application 04Specialty Bonding
View the complete lead-free indium solder wire series →

Need 90In / 7Sn / 3Ag solder wire for your process?

Contact Jufeng Solder for alloy confirmation, diameter options, sample evaluation, packaging and quotation support.

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