Flat hard brush from DESCO
The Desco 238125 is a flat, hard conductive brush designed to minimize electrostatic charges and dissipate existing charges to ground when the brush is held by grounded personnel. The product is listed in Desco's conductive-plastic brush family specification and is designated as a part with bristle dimensions of 20 mm (L) x 50 mm (W) x 6 mm (D).
Material and electrical properties
- Bristles: hard; made from conductive yarn mixed with pig hair and horse hair.
- Handle: dissipative black polypropylene with the ability to dissipate charges to ground.
- Volume resistance, conductive fibers: 1 x 10^3 to < 1 x 10^5 ohms (per ANSI/ESD STM11.12).
- Volume resistance, dissipative handle: 1 x 10^4 to < 1 x 10^11 ohms (per ANSI/ESD STM11.12).
Typical applications
The Desco 238125 is used to minimize static charge generation and to dissipate electrostatic charges to ground when the brush is operated by grounded personnel. According to the manufacturer, hard bristles are especially intended for electronics, including circuit boards ("mainly for electronics, especially circuit boards").
Documentation
The manufacturer's technical documentation specifies the above materials and electrical characteristics. For further technical details and family overview, please refer to the manufacturer's datasheet: See datasheet from the manufacturer.
Specifications
- Product: Desco 238125 (flat hard brush)
- Bristle dimensions: 20 mm (L) x 50 mm (W) x 6 mm (D)
- Bristle hardness: hard
- Bristle material: conductive yarn mixed with pig hair and horse hair
- Handle material: dissipative black polypropylene
- Volume resistance, conductive fibers: 1 x 10^3 to < 1 x 10^5 ohms (per ANSI/ESD STM11.12)
- Volume resistance, dissipative handle: 1 x 10^4 to < 1 x 10^11 ohms (per ANSI/ESD STM11.12)
Source: DESCO product family documentation and datasheet for conductive plastic brushes (Drawing Number 238100).
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