Almit SR37 LFM-48S Lead-Free Solder Wire
Almit SR37 LFM-48S is a high-reliability lead-free solder wire suitable for piston and induction soldering, especially on nickel surfaces. Composed of Sn-3.0Ag-0.5Cu, it delivers clean results with reduced solder waste.
SR37 LFM-48S Features
- Excellent solderability at 217–221°C
- Flux content: 3.5%, REM1, no-clean type
- Minimizes tip waste
- Stable performance with added metals
SR37 LFM-48S Applications
- Induction soldering
- Piston soldering
- Nickel-plated component soldering
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
Need help selecting the right product or solution?
Physical Properties
|
Solidus °C |
Liquidus °C |
Specific Gravity |
|
217 |
221 |
7.4 |
Characterisitcs:
|
Test |
Characteristics |
Test Methods |
|
Flux Content |
3,5% 3.0 ~ 4.0 (%) |
IPC-TM-650:2.3.34.1 |
|
Copper Mirror Test |
|
n.a |
|
Silver Chromate |
n.a |
n.a |
|
Flux materials composition |
RE |
J-STD-004A |
|
Quantitative Halide |
M1 < 0.5% |
J-STD-004A |
|
SIR (85°C, 85%, 168hr) (Ω) |
≥ 1 x 10 8 |
IPC-TM-650:2.6.3.3 |
|
Corrosion Test |
pass |
IPC-TM-650:2.6.15 |
Identification
|
Reel |
Cardboard |
||
|
Name |
SR37 LFM-48 S |
Name |
SR37 LFM-48 S |
|
Flux Content |
3,5% |
Flux Content |
3,5% |
|
Diameter |
mm |
Diameter |
mm |
|
Net-Weight |
e.g. 500g |
Net-Weight |
e.g. 5kg |
|
Lot Nr. |
e.g. 13.11.25 |
Lot Nr. |
e.g. 13.11.25 |
|
Maker |
Nihon Almit Co. Ltd. |
Maker |
Nihon Almit Co. Ltd. |
