Military and aerospace electronics are vulnerable not only to drops and rough handling but also to environmental factors. Among these risks, electrostatic discharge (ESD) is a major concern. The National Aeronautics and Space Administration (NASA) treats ESD as a key risk in its operations mainly because it is difficult to detect right away, with damage that may not become apparent until later during critical operations. This risk especially matters when shipments contain sensitive components used in defense systems.
You need a sound shipping plan when handling military and aerospace electronics. The process starts with identifying the correct packaging conditions, with thoughtful consideration of cushioning and moisture prevention. Correct Products supports this process with a wide range of ESD shipping materials.
Why Is ESD-Safe Shipping Necessary for Military and Aerospace Electronics?
ESD happens when electrical charge moves suddenly between objects. Because many military and aerospace electronics are susceptible to ESD, proper handling is extremely important. A person, tool, work surface, or package material can carry static charge. ESD damage is hard to detect at first; a component may look normal from the outside, and the damage may not become noticeable until use.
ESD prevention protocols continue even after production ends. NASA’s ESD workmanship handbook states that ESD control is necessary from manufacturing through testing to shipment. This means shipping is integral to the ESD control process.
The Defense Logistics Agency’s (DLA) guidance on ESD states that simply walking across nylon carpet can produce up to 35,000 volts on a dry day. Even picking up a plastic bag can generate 20,000 volts. To compare, it only takes 30 to 50 volts of static to cause the malfunction of chips installed in M-1 tanks and F-18 aircraft. This shows why ordinary packaging will not suffice.
Start With the Item and Its Packaging Requirement
The first step is to identify the item and its ESD package requirements. Choosing materials based on component size or weight is not enough. You need to check what the item’s technical sheet and packaging instructions demand.
ESD codes often tell you whether an item is susceptible to ESD:
- Code B indicates the component is ESD-sensitive.
- Code C denotes sensitivity to electromagnetic interference (EMI).
- Code D means the item has both ESD and EMI sensitivity.
After the first review, the packaging or logistics team can choose the appropriate ESD barrier, such as static-shielding bags, mil-spec bags, or dry packaging.
Use the Right ESD Barrier Before Adding Cushioning
The DLA has published guidelines explaining that ESD- or EMI-susceptible parts require special packaging. Using an inner barrier provides additional shielding against ESD. The inner layer is necessary when a product leaves the ESD-controlled work area and enters the supply chain.
For high-value items such as exposed boards, ICs, and microcircuits, a shielding barrier is a more suitable choice. For example, static-shielding bags provide a barrier against external static fields. You can use black conductive bags if the process needs more conductive material. Meanwhile, anti-static bags are a more affordable option if the part doesn’t need high static protection.
A simple rule to remember is not to place exposed military or aerospace electronics into regular plastic packaging. Choose the correct ESD barrier first, then add cushioning and the outer shipping container.
When Mil-Spec ESD Barrier Materials Matter
For military shipments, you can find packaging specifications in the item’s drawing or packaging instructions. It is the responsibility of the packaging or logistics team to confirm whether the components for shipment require military-grade ESD barriers. This is a necessary step if the parts include microcircuits, semiconductor devices, sensitive resistors, and other high-value electronic parts.
It’s not advisable to choose mil-spec packaging solely by appearance. The packaging team should check the documented requirement and confirm that the selected material matches it. DLA says suppliers must verify that the materials came from a qualified manufacturer.
Add Cushioning That Protects Pins, Leads, and Circuit Boards
An ESD barrier alone does not protect well against physical damage. A component may have ESD protection but still be vulnerable to shifting, warping, and punctures. DLA notes that packaging for contacts, leads, terminals, and other protrusions must have both ESD and physical protection. Wrapping, cushioning, and container design are ways to provide that security.
Cushioning can help hold the product securely and shield vulnerable spots. Small parts with pins can use conductive foam or anti-static foam. Circuit boards may need fitted inserts or circuit board shipping boxes. Larger modules may need ESD cushion pouches or other static-safe cushioning.
It’s not advisable to wrap exposed electronics in non-ESD bubble wrap. The first layer should be an ESD barrier, followed by ESD bubble cushioning or some other ESD cushioning material.
Control Moisture When the Item Requires
Some components may face humid environments in storage or transit. Moisture can be a real problem in these situations. As a result, the product may require both ESD shielding and moisture control.
DLA’s guidance on MIL-PRF-81705 Type I material covers solutions providing both ESD protection and water vapor protection for certain electronic parts. This means dry shipping materials matter for shipment units that need ESD and moisture prevention.
A dry packaging setup may include an ESD moisture barrier bag or ESD vacuum bag, desiccant packs, and humidity indicator cards. A vacuum sealer or heat sealer can close the package when the product requires a sealed barrier.
Do not add dry packaging materials by guesswork. Use them when the part record, customer instruction, or shipping condition calls for dry-packaging measures.
Label the Package for ESD Handling
Your packaging must inform personnel that the product inside needs specialized handling. You can do this by attaching ESD labels to the packing exterior. Without this special label, the receiving handlers could open the package, exposing the items inside.
DLA says that ESD-sensitive products must have appropriate shipping labels. A device attention label with the triangle-and-hand symbol and warning text for static-sensitive devices is the usual label used. The ESD label and tape should be legible and visible to any receiving team.
Step-By-Step Shipping Process
Here is a process you can use for military and aerospace electronics:
- Identify the product. Confirm whether it is a PCB, IC, microcircuit, sensor, module, connector, SMD reel, or finished assembly.
- Check the requirements. Review the drawing, contract, purchase order, packaging code, technical sheet, and ESD or EMI sensitivity code.
- Maintain ESD-safe handling. Package the shipment unit at an ESD-controlled workstation.
- Choose the inner barrier. Use static shielding bags, black conductive bags, mil-spec bags, or another appropriate ESD barrier.
- Protect vulnerable points. Use conductive foam, anti-static foam, inserts, ESD cushion pouches, or circuit board shipping boxes to prevent movement and protect pins, leads, terminals, and connectors.
- Add moisture control. Consider using ESD moisture barrier bags, desiccant, and humidity indicator cards.
- Use the proper outer package. Choose a container that prevents crushing, bending, and loose movement.
- Apply ESD markings. Label the unit pack, as well as the intermediate and exterior containers.
- Record the shipping details. Keep material type, lot number, inspection notes, and special instructions as per QA or procurement rules.
Common Mistakes to Avoid
Avoid these packaging errors:
- Using standard plastic bags for exposed electronics
- Using regular bubble wrap directly against circuit boards
- Treating anti-static bags the same as static shielding bags
- Letting boards or modules move inside the package
- Leaving pins, leads, terminals, or connectors unprotected
- Skipping moisture prevention when the product calls for dry packaging
- Forgetting ESD labels on required containers
- Ignoring ESD, EMI, or shipping codes in the item record.
Each packaging mistake removes one part of the protection system.
Get the Right ESD Packaging for Your Military and Aerospace Electronics Shipment
Correct Products can support the above steps with ESD shipping solutions, such as ESD bags, static-shielding bags, ESD foam, ESD cushion pouches, and ESD tape and labels. Bulk and custom orders are available. Contact Correct Products today at 972-690-6645 or 1-800-870-1199 (toll-free).
Frequently Asked Questions
What is the safest way to ship military electronics?
The best approach is to check the packaging requirements for each item. Use the appropriate ESD barrier and then add ESD cushioning. If the item is moisture-sensitive, apply dry packaging as well. Finally, use the correct ESD labels on the exterior.
Do aerospace electronics always require static-shielding bags?
Not always. The packaging you use will depend on what the component specifies. Exposed boards, microcircuits, semiconductors, and similar vulnerable parts need static shielding or another approved ESD barrier.
Can I use regular bubble wrap for military or aerospace electronics?
The short answer is no. It is highly discouraged to use regular bubble wrap for ESD-sensitive electronics. Use the correct ESD packaging as per item specifics.
Do ESD-sensitive parts need labels?
Yes, when the marking requirement applies. ESD labels warn receiving, warehouse, inspection, and repair teams to handle the package at a static-safe workstation.
When should I use moisture barrier packaging?
Use moisture barrier packaging when product requirements call for moisture protection. A dry package generally includes an ESD moisture barrier bag, a desiccant, a humidity indicator card, and a sealed closure.
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