Solder Connection

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Telecore HF-850 Flux Cored Solder Wire

ALPHA® Telecore HF-850 is the fastest wetting and  lowest spattering, Halogen Free and Halide Free cored wire offering from Alpha. It performs admirably when benchmarked against Halogen and  Halide containing competitive products available in the market and is a viable option to meet environmental requirements. HF-850’s rapid wetting meets drag soldering and all other common soldering needs. Its clear residue allows easy inspection of solder  joints and the very low spatter rate ensures board cosmetics and user comfort is maintained. All this translates to a safe and environmentally compliant product that is operator friendly and a delight to use.

Key Products Features & Benefits: 

  • Very fast wetting → Low Cycle times for component touch-up and manual assembly.
  • Very low flux spatter →Safe to use, Operator Friendly, Less Residues on Boards.
  • Good spread characteristics→Excellent First Pass Solder Joints. JIS Spread ≥ 80%.
  • Very low levels of fumes→Cleaner Working Environment, Less Extraction Maintenance.    
  • Clear non-tacky residue→No-Clean Residues, Useful for all Applications.    
  • Provides good joint appearance→Makes Inspection easy.    
  • Halogen and Halide Free→Environmental compliance and High Electrical Reliability.
  • J-STD Classification: ROL0


Product Number : HF-850

Prod. No. 176950
Telecore HF-850 SnCXPlus07 1.00 mm 2.2% 500g (On a 1kg reel)

Prod. No. 160653
Telecore HF-850 SAC305 0.4mm 2.2% 250gm Reel

Prod. No. 160652
Telecore HF-850 SAC305 0.25mm 2.2% 250gm Reel

Prod. No. 160518
Telecore HF-850 SACX 0.4mm 2.2% 250gm Reel

Prod. No. 161425
Telecore HF-850 SACX 0.75mm 2.2% 500gm Reel

Prod. No. 162427
Telecore HF-850 SACX 1.25mm 2.2% 500gm Reel

Prod. No. 161445
Telecore HF-850 SAC305 0.75mm 2.2% 500gm Reel

Prod. No. 160187
Telecore HF-850 SAC305 1.00mm 2.2% 500gm

Prod. No. 162227
Telecore HF-850 63/37 0.4mm 2.2% 250gm Reel

Prod. No. 162254
Telecore HF-850 63/37 0.75mm 2.2% 500gm Reel

Prod. No. 162986
Telecore HF-850 62/36/2 0.5mm 1.1% 250gm


Q - What is colophony and can it cause any health issues?
A - Colophony is a generic term for rosin, this is the sap or sticky substance that derives from pine and spruce trees. Its "stickiness" lends itself to being used in a wide range of products. We have traditionally used this product in fluxes due to these specific properties it can however lead to breathing difficulties and skin sensitivity. Always use fume filtration when soldering and change filters regularly.

Q - What is the difference between rosins and resins?
A - The terms are often used interchangeably, but rosin is a naturally occurring substance, and resin is either a modified rosin or completely synthetic material. Rosins are plant based products and are subject to more natural variation than resins, however resins are commonly used in newer flux formulations due to their more consistent performance.

Q - How does IPCJ-STD-004B flux classification work.
A - Flux designation has three components. The first two letters, RO, RE or OR, represent the basic chemical composition: rosin-based, resin-based or organic acid-based. The next component is flux designation, L, M or H, which describes the flux’s activity level as low, medium or high, and the final component, 0 or 1, this indicates if halides are present.

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