Safety Issues with Counterfeit Bourns® Trimmers!

RIVERSIDE, CA, July 1, 2005

Customers Beware!

Bourns, Inc. has witnessed an increase in the availability of counterfeit and cloned Bourns® trimming potentiometers worldwide. Purchasers of counterfeit or cloned trimmers should be aware of the following risks:

  1. Counterfeit and Clone Manufacturers may not abide by RoHS legislation or provide compliant product;
  2. Counterfeit Manufacturers do not abide by national and international laws protecting registered trademarks;
  3. Counterfeit and Clone Manufacturers likely will not be willing to provide material data sheets or disclose third party material declarations; and
  4. Counterfeit and Clone Manufacturers likely will not have reliable information on newly required tin whisker testing results.
Purchasers of counterfeit or cloned trimmers probably are not aware whether the material used in counterfeit or cloned trimmers complies with applicable safety standards. Any use of non-compliant material should be of significant concern to purchasers of counterfeit or cloned trimmers. For example, we have posted below a video of flammability testing of a genuine Bourns® trimmer and a counterfeit trimmer. This video clearly shows that the housing material in the counterfeit trimmer does not comply with UL-94V0 requirements for flammability resistance thus creating a potentially unsafe condition.

Trimmer Flammability Testing


Genuine Bourns® Product

For our customers' protection, Bourns recommends that all customers purchase Bourns® products only from authorized Bourns distributors to ensure delivery of genuine products. Authorized Bourns Distributor links are located on the Bourns website at Sales Locations.

Please feel free to contact technical support for more information.


Bourns — 是电子零组件业界的龙头制造供货商,公司总部位于美国加州的河边市,其产品包含:位置与速度传感器、电路保护解决方案、磁性组件、微电子模块、面板控制器及电阻产品,服务产业涵盖汽车、工业、消费、通信、非关键性的生命支持医疗(低/中风险)、音频以及其他各种市场。如需了解更多的公司与产品讯息,欢迎上公司网站查询


† Bourns®产品并非设计用于“救生”、“性命攸关”或“维持生命”应用,也不适用于Bourns®产品故障可能导致人身伤害或死亡的任何其他应用。请参阅法律免责声明

Annette Keller
Keller Communication
(949) 947-7232
Bourns亚太媒体联络人 :
陈侨芬 Josephine Chen
Bourns Asia Pacific, Inc