Indium NC-771 Solder Flux FLUXOT-84191-PEN | 10ml Pen - Pack of 40
Indium NC-771 — No-Clean Lead-Free Flux Pen, 10ml | FLUXOT-84191-PEN | Pack of 40
The Indium NC-771 flux pen (SKU: FLUXOT-84191-PEN) is a no-clean, lead-free liquid flux in a convenient 10ml pen applicator. NC-771 is formulated for SMT rework, hand soldering, wave soldering touch-up, and selective soldering applications where a low-residue, no-clean flux is required. The pen format provides precise, controlled flux application directly to pads, leads, and joints without overspray or waste. Supplied in packs of 40 pens (MOQ: 40).
Key Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | FLUXOT-84191-PEN |
| Flux Designation | NC-771 |
| Volume | 10ml pen |
| Flux Type | No-clean, liquid |
| Lead Content | Lead-free (Pb-free) |
| Pack Quantity / MOQ | 40 pens |
| Application Method | Pen applicator — direct tip application |
| Brand | Indium Corporation |
Key Features
- No-clean formulation — low, benign residue that does not require post-solder cleaning in most applications
- Lead-free (Pb-free) — compatible with SAC305 and other lead-free alloys for RoHS-compliant assembly
- Pen applicator format — precise, controlled flux delivery directly to target areas; minimizes flux waste and overapplication
- Suitable for rework and touch-up — ideal for SMT rework, BGA reballing, hand soldering, and selective soldering touch-up
Frequently Asked Questions
What applications is the NC-771 flux pen designed for?
NC-771 is a versatile no-clean liquid flux suitable for SMT rework, hand soldering, wave soldering touch-up, selective soldering, and BGA reballing. The pen format is particularly well-suited for rework and repair operations where flux needs to be applied precisely to individual pads, leads, or joints without contaminating surrounding areas.
Does NC-771 residue need to be cleaned after soldering?
NC-771 is a no-clean flux — the post-solder residue is designed to be benign, non-corrosive, and non-conductive in most applications, so cleaning is not required. However, if the assembly will be coated with conformal coating or if ICT probe testing requires low-residue surfaces, verify residue compatibility with your process before skipping cleaning. Refer to the Indium TDS for residue characterization data.
Is NC-771 compatible with lead-free alloys?
Yes — NC-771 is formulated for lead-free (Pb-free) soldering and is compatible with SAC305 (Sn96.5/Ag3.0/Cu0.5) and other common lead-free alloys used in RoHS-compliant electronics assembly.
Why is the MOQ 40 pens?
The FLUXOT-84191-PEN is sold in packs of 40 pens (MOQ: 40). This pack quantity is standard for production environments where flux pens are used regularly across multiple workstations. Contact MTE Solutions if you need to discuss order quantities or pricing for your specific volume requirements.
How do I use the NC-771 flux pen?
Remove the cap and press the tip against the target surface to start flux flow. Apply flux directly to pads, leads, or joints as needed. Replace the cap after use to prevent the tip from drying out. Store horizontally or tip-down to maintain tip saturation. Refer to the Indium TDS for storage and handling guidance.
