LZ633 is a high-precision narrow-width carrier tape built for miniature 3A-AG/33 discrete semiconductors, widely used in small power switches, signal diodes, and mini control circuits of consumer electronics. Tiny SMD chips with ultra-fine pins require ultra-tight tolerance cavities to limit movement; generic carrier tapes leave excessive internal clearance, causing component shifting and pin damage during shipping and high-speed taping.
Hatro calibrates the compact 1.80×3.40×1.55mm pocket strictly to the exact outline of 3A-AG/33 chips, minimizing free space inside the pocket to lock the component firmly in place. The upgraded 0.20mm thin conductive PC substrate maintains good flatness without permanent bending after multi-layer reel winding. The 1.00° balanced demolding angle optimizes mold forming efficiency and ensures smooth component ejection during SMT mounting. The integral conductive black PC material delivers stable permanent anti-static performance without surface coating peeling, protecting ultra-fine pins from electrostatic damage. All dimensional data strictly complies with EIA-481 global carrier tape industry specifications, fully compatible with all mainstream 8mm narrow-width automated taping and pick-and-place machines.
Complete Technical Parameter Table
| Parameter Name | EIA-481 Tolerance (mm) | LZ633 Custom Value (mm) | Industrial Practical Advantages |
|---|---|---|---|
| W Tape Width | 8±0.10 | 8 | Universal narrow width fits all global mini-component automated taping equipment, zero equipment modification cost |
| P1 Feed Hole Pitch | 4±0.10 | 4 | Standard 4mm sprocket pitch delivers consistent stable traction, eliminates tape skip and jamming in non-stop mass production |
| T Base Thickness | 0.20±0.02 | 0.20 | Ultra-thin flexible conductive substrate avoids hard curling after thousands of winding layers, ideal for small mini chip reels |
| A0 Cavity Width | 1.80±0.05 | 1.80 | Precision narrow pocket restricts lateral movement of tiny 3A-AG/33 semiconductor chips |
| B0 Cavity Length | 3.40±0.05 | 3.40 | Matched longitudinal outline of miniature components, prevents front-back sliding and overturning |
| K0 Cavity Depth | 1.55±0.05 | 1.55 | Moderate pocket depth matches chip thickness, ensures stable suction nozzle contact to lower empty pick rate |
| D1 Draft Angle | 1.00 | 1.00 | Balanced demolding angle reduces mold sticking rate and enables effortless chip ejection at SMT stations |
Core Competitive Advantages
- Ultra-Tight Precision Compact Cavity: Minimal internal clearance firmly locks tiny 3A-AG/33 chips, effectively preventing component shifting and delicate pin bending.
- Integral Conductive Black PC Material: Permanent 10⁶~10⁹Ω/sq ESD resistance with no surface coating shedding, full-cycle static protection for sensitive miniature semiconductors.
- 0.20mm Flexible Thin Substrate: Lightweight flexible substrate reduces overall reel weight to cut logistics cost for bulk shipments, no permanent winding curl.
- 1.00° Optimized Demolding Angle: Balanced draft angle improves continuous thermoforming productivity and reduces pocket surface blemishes.
- One-Stop Supporting Packaging Accessories: Matching anti-static cover tape and small plastic reels supplied together, rapid custom mold adjustment for special variant small chip sizes.
Application Scenarios
- 3A-AG/33 packaged small signal diodes, miniature switching semiconductors for consumer electronics, smart wearables, and miniature control modules
- Semiconductor packaging factories with high-precision mini-chip SMT mass production lines
- Electronic manufacturers requiring long-term stable static protection for tiny discrete semiconductors
Q&A Session
Q: What is the advantage of this tightly sized precision pocket compared with generic large cavities?
A: Generic carrier tape leaves large gaps inside the pocket, so tiny 3A-AG/33 chips shift freely during transportation and bend ultra-fine pins. Our tightly calibrated cavity fits the chip outline precisely, limiting component movement and drastically cutting pin damage defects.
Q: Why choose integral conductive PC instead of coated anti-static material?
A: Surface-coated carrier tapes will lose ESD protection after repeated friction during taping. Our integral conductive formula mixes conductive material evenly into the raw PC, maintaining stable anti-static performance for the full component storage and assembly cycle.
