Crystal Oscillator & SOIC Zip Bags — 2.5" x 3" / 4 Mil / Reclosable Pink Antistatic / 1000 per Case
These 2.5" x 3" reclosable pink antistatic bags are designed for storing and transporting small ESD-sensitive components including crystal oscillators, SOIC packages, small sensor ICs, connector headers, and discrete semiconductor devices. The single-track zipper provides secure reclosable access for kitting and inspection workflows, while the 4 mil gauge gives each bag enough body to handle without collapsing or inverting. Side seam welding prevents splitting under repeated open-and-close cycling.
Specs: 2.5" x 3" | 4 Mil | ESD Dissipative Pink Film | 1000/CS | MIL-PRF-81705E Type II / EIA-541
Applications
Crystal oscillator and resonator component storage, SOIC and small IC package bags, PCB component kitting for contract assembly, QC sample holding bags, ESD-safe parts counting bags, sensor module protection during board-level repair, discrete transistor and diode storage bags.
Features
- Reclosable single-track zipper — rated for repeated open/close cycles
- Side seam welded — prevents zipper-track separation under stress
- 4 mil gauge — enough structure for small parts kitting without overpacking
- Amine-free formulation — will not corrode polycarbonate or metal contacts
- Surface resistivity < 1 x 10¹² ohms/sq — meets ESD dissipative requirements
- Also heat sealable, staple-closed, or tape-closed if reclosure is not needed
Material Notes
Pink antistatic film (ESD dissipative, Type II). Surface resistivity below 1 x 10¹² ohms/sq satisfies static decay requirements of MIL-PRF-81705E Type II and EIA-541. Amine-free formulation is critical for polycarbonate-bodied components — standard antistatic amines can stress-crack polycarbonate housings on connectors and oscillators over time. This bag eliminates that risk.
Use Case Notes
The 2.5x3 footprint is matched to small passive and active components — crystal oscillators (HC-49, SMD), SOIC-8 and SOIC-16 packages, small JST connector sets, and similar. The reclosable zipper makes these useful for kitting operations where the same bag is opened and resealed multiple times before final assembly. For single-use storage or shipment, the bag can be heat sealed over the zipper track for a permanent closure.
Common Questions
What ESD standard does this bag meet?
Surface resistivity is less than 1 x 10¹² ohms/sq, meeting the static decay requirements of MIL-PRF-81705E Type II and EIA-541. These bags are ESD dissipative, not fully conductive Faraday-cage bags.
Why is amine-free formulation important?
Standard antistatic bags use amine-based compounds that can outgas and attack polycarbonate plastics, causing stress cracking and connector failure. Amine-free bags eliminate this risk for polycarbonate-bodied components and precision devices.
Can the bag be heat sealed in addition to the zipper closure?
Yes. The bag can be heat sealed, stapled, or taped shut for permanent closure independent of the zipper track.
Why Buy
The 2.5x3 / 4 mil reclosable format is purpose-suited to the size range where most discrete SMD components and oscillators fall. Amine-free film and MIL-spec compliance make this a specification-safe choice for electronics assembly, contract manufacturing, and QC hold applications where standard antistatic bags carry polycarbonate corrosion risk.
