ESD Wrist Straps
ESD earthing
ESD wrist straps provide a direct, low-impedance discharge path from the operator to the EPA ground point, keeping body voltage below the 100 V threshold required by IEC 61340-5-1 and ANSI/ESD S1.1. A correctly worn coiled-cord band with a 1 MΩ series resistor limits discharge current to safe levels while maintaining a total system resistance < 3.5 × 10⁷ Ω - the critical pass criterion for continuous and periodic wrist strap monitors. Metal-core elastic bands achieve skin-contact resistance < 10⁶ Ω, well within the 10⁵-10⁷ Ω working-range specification for operators handling ESDS components.
As a specialist distributor for ESD grounding systems, esd.equipment stocks 47 wrist strap variants - from economy single-wire bands to dual-wire continuous-monitor models - all sourced from certified manufacturers and compliant with IEC 61340-5-1, DIN EN 61340-5-2, and ANSI/ESD S1.1. Whether you need a basic periodic-test band for a small repair bench or a 24/7 monitored dual-conductor strap for a high-volume SMT line, every item ships from warehouse stock.
ESD Wrist Strap Types - technical comparison
| Criterion | Dual-wire continuous monitor | Single-wire coiled cord | Wireless / cordless |
|---|---|---|---|
| Ground verification | Continuous, real-time alarm | Periodic manual test | Periodic manual test |
| Series resistor | 1 MΩ per conductor | 1 MΩ | 1 MΩ internal |
| Total system resistance | < 3.5 × 10⁷ Ω (IEC pass) | < 3.5 × 10⁷ Ω | ca. 10⁷-10⁸ Ω |
| Cord length (extended) | ca. 1.8-2.4 m | ca. 1.8-2.4 m | No cord |
| Operator mobility | Limited to cord reach | Limited to cord reach | Full range of motion |
| Norm compliance | IEC 61340-5-1, ANSI S1.1 | IEC 61340-5-1, ANSI S1.1 | ANSI/ESD S1.9 |
| Typical application | High-volume SMT, semiconductor | Repair bench, lab, rework | Warehouse picking, inspection |
| Monitor interface | Dedicated continuous monitor required | Handheld tester, periodic | Handheld tester, periodic |
Typical application areas: Electronics manufacturing SMT lines (IPC-A-610, IEC 61340-5-1), semiconductor wafer handling (SEMI S1/S2), medical device assembly (ISO 13485), automotive electronics production (IATF 16949, VDA 6.3), aerospace avionics assembly (AS9100), PCB rework and repair stations, laboratory and metrology environments, ESD-protected warehouse picking and kitting operations.
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- DESCO 60677. Jewel MagSnap Dual-wire Metal Wrist Band, Medium€15.78Excl. 19% VAT , excl. Shipping Cost
- Warmbier 2052.750.5.3. ESD bracelet, metal links, black, 3 mm snap fastener€14.60Excl. 19% VAT , excl. Shipping Cost
- Warmbier 2052.750.5.10. ESD bracelet, metal links, black, 10 mm snap fastener€14.60Excl. 19% VAT , excl. Shipping Cost
- DESCO 4720. Dual Conductor Adjustable Thermoplastic Wrist Band€11.19Excl. 19% VAT , excl. Shipping Cost
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