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Removing DIPs from vinyl tray | 2,000 V | 4,000 V | 11,500 V |
Removing DIPs from Styrofoam | 3,500 V | 5,000 V | 14,500 V |
Removing bubble pack from PCB | 7,000 V | 20,000 V | 26,500 V |
Packing PCBs in | 5,000 V | 11,000 V | 21,000 V |
These are then
NOTE: 700 volts can degrade a product.
Preventing Electrostatic Damage to Equipment
Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric components and accessories.
●To avoid hand contact, transport products in
●Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.
●Keep electrostatic sensitive parts in their containers until they arrive at
●Place items on a grounded surface before removing them from their container.
●Always be properly grounded when touching a sensitive component or assembly.
●Avoid contact with pins, leads, or circuitry.
●Place reusable
Personal Grounding Methods and Equipment
Use the following equipment to prevent static electricity damage to equipment:
●Wrist straps are flexible straps with a maximum of
●Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both feet with a maximum of
| Static Shielding Protection Levels |
|
|
Method | Voltage |
|
|
Antistatic plastic | 1,500 |
7,500 | |
Metallized laminate | 15,000 |
|
|
46 Chapter 5 Routine Care, SATA Drive Guidelines, and Disassembly Preparation