Tech Wear HOJ-53C-L Smock - Hallmark Style OFX-100 - Jacket - 3 Pocket Color = Gray, Large, Knitted Cuffs
Tech Wear HOJ-53C-L — Hallmark Style OFX-100 ESD Jacket Smock, Gray, Large, Knitted Cuffs
The Tech Wear HOJ-53C-L (SKU: HOJ-53C-L) is a Hallmark series ESD jacket smock made from lightweight OFX-100 fabric (2.3 oz/yd²). Designed to ground the garment and wearer via ground snaps at the hip pocket for wrist strap cord connection. “C” style includes ESD grid-knit cuffs for additional static control at the wrist. Three patch pockets and snap front closure. Surface resistivity approximately 10⁵ Ω/sq; static decay from 5,000V to 500V in less than 0.1 seconds. Gray, Large.
Key Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | HOJ-53C-L |
| Series | Hallmark |
| Fabric | OFX-100 |
| Fabric Weight | 2.3 oz/yd² |
| Style | Jacket / smock |
| Color | Gray |
| Size | Large |
| Cuff Style | ESD grid-knit cuffs (“C” style) |
| Pockets | 3 patch pockets |
| Closure | Snap front |
| Grounding | Ground snaps at hip pocket for wrist strap cord connection |
| Surface Resistivity | ~10⁵ Ω/sq |
| Static Decay | 5,000V → 500V in <0.1 seconds |
| Brand | Tech Wear |
Key Features
- OFX-100 ESD fabric — lightweight 2.3 oz/yd² construction for all-day comfort in production and lab environments
- ESD grid-knit cuffs — “C” style knit cuffs provide static control at the wrist, reducing charge generation from sleeve movement
- Ground snaps at hip pocket — connects to a wrist strap coiled cord to ground both the garment and the wearer through a single connection point
- Fast static decay — 5,000V to 500V in less than 0.1 seconds for rapid charge dissipation
- 3 patch pockets + snap front — functional design for production floor and lab use; snap closure for quick donning and doffing
Frequently Asked Questions
What does the “C” designation mean in HOJ-53C-L?
The “C” in the model number indicates that this smock includes ESD grid-knit cuffs. Tech Wear Hallmark series smocks are available in styles with and without knit cuffs. The “C” style is recommended for environments where wrist-level static control is important — particularly when working with ESD-sensitive components at a bench where sleeve movement could generate charge near the work surface.
How does the HOJ-53C-L ground the wearer?
The HOJ-53C-L includes ground snaps at the hip pocket that accept a standard wrist strap coiled cord. When connected, the cord grounds both the garment and the wearer through the smock’s conductive OFX-100 fabric to the ESD ground point. This provides a complete grounding path from the wearer’s body through the garment to ground, in addition to or instead of a traditional wrist strap worn directly on the skin.
What is OFX-100 fabric and how does it compare to other ESD garment materials?
OFX-100 is a lightweight (2.3 oz/yd²) ESD-dissipative fabric used in Tech Wear’s Hallmark series garments. It provides a surface resistivity of approximately 10⁵ Ω/sq and fast static decay (<0.1 seconds from 5,000V to 500V), meeting the requirements of ANSI/ESD S20.20 ESD garment specifications. The lightweight construction makes it comfortable for extended wear in production and laboratory environments.
Is the HOJ-53C-L compliant with ANSI/ESD S20.20?
The HOJ-53C-L is designed to meet the ESD garment requirements of ANSI/ESD S20.20 ESD control programs. The surface resistivity (~10⁵ Ω/sq) and static decay performance (<0.1 seconds) are consistent with ANSI/ESD S20.20 garment qualification requirements. Verify compliance with your specific program requirements and test per ESD TR53 as part of your garment qualification process.
