LZ640 is a heavy-duty wide-format carrier tape built exclusively for SOP-8 small outline ICs. Ordinary 12mm carrier tapes with standard 4mm feed pitch often slip and deviate when running heavy reels loaded with SOP-8 chips, causing machine downtime. To solve this problem, we upgraded LZ640 with an 8mm widened feed hole structure, which greatly increases meshing area with the taping machine gears to ensure stable traction even on full heavy reels.
The 0.25mm thick new PC substrate delivers excellent rigidity, eliminating permanent curling after long-term winding and cross-border cold shipping. The 6.40×5.40×2.10mm precision pocket perfectly fits the full outline of SOP-8 chips, limiting lateral and longitudinal movement to prevent pin bending and component overturning. The 1.50° large demolding angle optimizes continuous thermoforming efficiency and ensures smooth SMT nozzle pickup. The integral conductive black PC provides long-lasting ESD protection and light shielding to protect sensitive ICs from static damage and light aging. All dimensions fully comply with EIA-481 international industry standards, compatible with all mainstream 12mm wide taping and SMT placement machines.
Complete Technical Parameter Table
| Parameter Name | EIA-481 Tolerance (mm) | LZ640 Custom Value (mm) | Practical Industrial Benefits |
|---|---|---|---|
| W Tape Width | 12±0.10 | 12 | Standard wide width fits all global 12mm wide-format automated taping equipment |
| P1 Feed Hole Pitch | 8±0.10 | 8 | Wider sprocket pitch strengthens traction, eliminates slipping and deviation for heavy SOP-8 full reels |
| T Base Thickness | 0.25±0.02 | 0.25 | Thick new PC improves flatness, no deformation after thousands of winding layers |
| A0 Cavity Width | 6.40±0.05 | 6.40 | Wide pocket matches the width of SOP-8 body, restricts horizontal chip offset |
| B0 Cavity Length | 5.40±0.05 | 5.40 | Precision length locks the full longitudinal outline of SOP-8 ICs |
| K0 Cavity Depth | 2.10±0.05 | 2.10 | Moderate depth fully protects IC pins from extrusion damage |
| D1 Draft Angle | 1.50 | 1.50 | Wide demolding angle reduces mold sticking and raises continuous forming productivity |
Core Competitive Advantages
- 8mm Widened Feed Hole Design: Solves feed slipping problems of heavy SOP-8 reels, ensuring stable operation on 24-hour non-stop production lines.
- Low-Temperature Toughened New PC Material: Resists brittleness under low-temperature sea freight, maintains good toughness for cross-border shipments.
- Precision Calibrated SOP-8 Exclusive Pocket: Minimizes internal clearance to lock chips firmly, drastically cutting pin bending defects.
- 0.25mm Thick Rigid Substrate: Keeps tape flat after long-term reel stacking, no warping even for fully loaded heavy reels.
- Permanent Integral Anti-Static Performance: Conductive material blended evenly into raw PC, no coating peeling, full-cycle ESD protection for semiconductors.
Application Scenarios
- Changdian SOP-8 packaged MOSFETs, logic ICs and small power semiconductors
- 12mm wide high-volume taping lines for semiconductor packaging factories
- Manufacturers with strict reel flatness requirements for long-term bulk inventory and export logistics
Q&A Session
Q: What’s the advantage of 8mm widened feed pitch compared with standard 4mm pitch?
A: SOP-8 filled reels are heavy. Standard 4mm sprockets easily slip under heavy load. The 8mm widened holes have larger contact area with drive gears, delivering stronger traction and eliminating tape deviation and jamming.
Q: Why choose new PC material instead of ordinary black PC?
A: Ordinary PC becomes brittle in cold long-distance shipping. Our new toughened PC formula retains flexibility at low temperatures, avoiding cracking during cold warehouse storage and ocean transportation.
