BUYER GUIDE / INDUSTRIAL

Antistatic PS Electronics Tray Guide

Q: What resistance range is targeted?

Tonghou's antistatic PS tray projects target a surface-resistance range of 10^9 to 10^11 ohms, subject to the agreed test method.

Q: Is antistatic the same as conductive?

No. These terms describe different resistance behavior, so the required classification must be stated in the project specification.

Q: What affects the measured resistance?

Material formulation, measurement method, temperature, humidity, conditioning and test location can affect the result.

Q: Why do published resistance ranges differ between sources?

Different standards classify materials differently: IEC 61340-5-1 and ANSI/ESD S541 use surface-resistance bands for packaging, while Chinese engineering references such as SJ/T 10694 and GB 50944-2013 use surface-resistivity bands. Always copy the standard, test method, conditioning and numeric range from the customer specification rather than relying on a generic chart.

Antistatic PS thermoformed trays are used to organize and protect electronic parts during handling and transport. For Tonghou projects, the target surface-resistance range is 10^9 to 10^11 ohms; the required ESD behavior, measurement method, environment, geometry and service life must still be confirmed for each application.

10⁹–10¹¹ Ω

Published and updated: 2026-09-15

Content author: Wenzhou Tonghou Plastic Products Co., Ltd.

Applications

Electronic component process trays
Assembly and transfer trays
Custom cavities for parts requiring controlled handling

Selection criteria

Required ESD classification and test method
Part orientation and sensitive zones
Cavity retention and removal clearance
Temperature, humidity and expected service life

Pre-production validation

Specify the required surface-resistance range, test standard, conditioning environment, measurement locations and acceptance criteria. Confirm fit and handling with production parts before volume manufacture.

04 / DECISION MATRIX

Buyer decision table

Primary decision	What to confirm
Electrical	Target 10^9–10^11 Ω range and test method
Geometry	Part support, clearance and sensitive areas
Handling	Loading, removal and process flow
Environment	Temperature, humidity and required service life

Surface-resistance classification

Classification	Surface resistance (Ω)	Electrical behavior	Typical packaging use
Conductive	< 10⁴	Charge drains quickly and can be routed to ground	Shielding-bag conductive layers, conductive carrier tapes
Static dissipative	10⁴ to < 10¹¹	Charge drains at a controlled rate without abrupt discharge	ESD-safe trays, bins, totes and inner packaging for electronic parts
Insulative	≥ 10¹¹	Charge stays on the surface and can accumulate	General non-ESD packaging; not for ESD-sensitive parts

The bands above follow the packaging classifications in IEC 61340-5-1 and ANSI/ESD S541. Chinese engineering references classify by surface resistivity instead: for example, GB 50944-2013 (citing SJ/T 10694) lists conductive materials below 1.0×10⁸ Ω/square and static-dissipative materials from 1.0×10⁸ to 1.0×10¹¹ Ω/square, and film-industry practice often labels 10⁹–10¹¹ Ω as "antistatic". Because the bands differ between standards, a procurement specification must state the standard, test method, conditioning environment and numeric range; the word "antistatic" alone is not a specification. The 10⁹–10¹¹ Ω target referenced for Tonghou antistatic tray projects is a project target specification, verified per the agreed test method.

05 / BUYER QUESTIONS

Common buyer questions

01What resistance range is targeted?

Tonghou's antistatic PS tray projects target a surface-resistance range of 10^9 to 10^11 ohms, subject to the agreed test method.

02Is antistatic the same as conductive?

No. These terms describe different resistance behavior, so the required classification must be stated in the project specification.

03What affects the measured resistance?

Material formulation, measurement method, temperature, humidity, conditioning and test location can affect the result.

04Why do published resistance ranges differ between sources?

Different standards classify materials differently: IEC 61340-5-1 and ANSI/ESD S541 use surface-resistance bands for packaging, while Chinese engineering references such as SJ/T 10694 and GB 50944-2013 use surface-resistivity bands. Always copy the standard, test method, conditioning and numeric range from the customer specification rather than relying on a generic chart.

06 / SOURCE BOUNDARY

Official references

These sources define terminology, testing or acceptance methods. Citing a standard does not claim Tonghou certification and does not replace project-specific validation.

IEC — IEC 61340-5-1: Protection of electronic devices from electrostatic phenomena — General requirements

Reference scope：Defines conductive (<10⁴ Ω), static-dissipative (10⁴ to <10¹¹ Ω) and insulative (≥10¹¹ Ω) classifications for packaging materials inside an EPA.
ESD Association — ANSI/ESD S541: Packaging materials for ESD sensitive items

Reference scope：US packaging classification: conductive <10⁴ Ω, static dissipative 10⁴ to <10¹¹ Ω, insulative ≥10¹¹ Ω (surface resistance).
《防静电工程技术规范》GB 50944-2013 第3.1条（公开转载文本） — 防静电材料及制品的基本要求

Reference scope：引述 SJ/T 10694 体系：导静电材料表面电阻率 <1.0×10⁸ Ω/□，静电耗散材料 1.0×10⁸–1.0×10¹¹ Ω/□，并注明国内外无统一测试标准。