Packaging for technology and electronics
Electronic assemblies are light, expensive and unforgiving. The failure modes are rarely a crushed box - they are a cracked solder joint, a scuffed bezel or a board that arrives dead from static or condensation.
What actually fails
Most electronics damage is invisible on arrival. A drop that leaves the carton unmarked can still transmit enough acceleration through a rigid product to crack a joint or unseat a connector, and the unit only fails once it is powered up - by which point it is a warranty return, not a packaging complaint. That gap is why electronics packaging has to be designed against shock transmitted to the product, not against how the box looks after the test.
The other three recurring failures are abrasion on finished surfaces, corrosion from condensation, and electrostatic discharge. Each has a different answer, and conflating them is the usual mistake.
Shock: isolate, do not just fill
A fragile assembly needs its acceleration limited, which means the product must be allowed to decelerate over a distance. Void fill does not do this - it stops the product moving, which is a different job. Cushioning requires designed deflection: molded pulp with ribs sized to the product's mass, corrugated crumple fitments, or suspension and retention formats that hold the unit away from every wall.
The bearing area matters as much as the material. A cushion sized for a heavier product will be too stiff to deflect and will transmit the shock straight through; sized too small it bottoms out. This is why a fitment cannot simply be copied from a similar-looking SKU.
ESD is a materials question, not a bag question
Plain corrugated is insulative, and an insulative surface rubbing against a product is exactly how charge is generated. Where the assembly is ESD-sensitive, the protection has to be specified deliberately - dissipative or conductive liners and fitments, and the correct shielding at the primary level - rather than assumed because there is a bag somewhere in the pack. Specify the surface resistivity you need and the level it applies at, and treat the corrugated as part of the ESD system rather than as neutral packaging around it.
Corrosion and condensation
Air-freighted and sea-freighted electronics move through large temperature swings, and a cold product entering a warm humid warehouse condenses. Corrugated is hygroscopic, so it both takes up that moisture and loses compression strength as it does. For sensitive assemblies this means considering barrier at the primary level, desiccant where the standard supports it, and derating the board for the humidity the pack will actually see - not the 23 C / 50% RH lab climate that strength figures are quoted at.
The test profile
Most electronics ship parcel or small-pallet, which puts you in ISTA 3A territory: drops, vibration and atmospheric conditioning. Where product travels a longer or mixed distribution chain, an ASTM D4169 cycle chosen to match the real lane is the better reference. ASTM D642 covers compression where the cases stack.
Test with the real product or a dummy of the same mass and rigidity. A flexible surrogate absorbs energy a rigid PCBA will not, and a test that passes with the surrogate tells you nothing about the assembly.
What we need from you
- Product mass, dimensions and where it is rigid or fragile - connectors, screens, heatsinks.
- Whether it is ESD-sensitive, and at what level.
- The lane: parcel, palletized, air or sea, and the climate at both ends.
- Any drop-height or acceleration limit your engineering team already works to.
- Whether the pack is customer-facing - unboxing changes the design, not just the print.
We manufacture and deliver across India, APAC and the US, so the same specification can be produced close to each line rather than shipping empty boxes between regions.