Need the Littelfuse equivalent to a competitor part? Enter the competitor part number here.
Search for the part(s) number you wish to receive samples. Or, visit the sample center page.
Check distributor stock levels by entering in full or partial part numbers
Littelfuse plants for PolySwitch devices are ISO/TS 16949:2009 and ISO 9001:2008 certified.
PolyZen device is designed to help engineers conserve valuable board space and meet evolving safety and performance standards in the portable electronics, automotive, multimedia and lighting industries.
We use cookies to collect information about how you interact with our website and to remember you. We use this information to improve and customize your browsing experience and for analytics about our visitors on this website and other media. To find out more about the cookies we use, see our Privacy Policy.
We use cookies to collect information about how you interact with our website and to remember you. We use this information to improve and customize your browsing experience and for analytics about our visitors on this website and other media. By selecting among and accepting to our use of the cookie categories below, you direct Littelfuse to store cookies on your device and disclose information as described in our Privacy Policy.
When you use our website, we collect personal data about you and your use of the Website, through cookies and analytics tools. We may also collect personal data such as your name, job title, company name, address, email address and telephone number either directly from you or by combining information we collect through other sources.
Because Littelfuse respects your right to privacy, you can choose to modify the cookies option and disallow some of them. Click on the different category headings to learn more and change default settings. However, blocking some types of cookies may impact your experience of the site and the services we are able to offer.
There are cookies which are needed for our website, applications or services to function properly. For example, these cookies remember your preference not to be tracked and identify trusted web traffic.
These cookies collect information about how visitors and users use our website, applications, and services. These cookies enable us to improve our website, for instance, by ensuring that users are finding the required information.
These cookies don't collect information that identifies a visitor or user. All information collected by these cookies is aggregated and anonymous.
These cookies allow our website, applications and services to remember choices you make (such as your preferred language) and provide enhanced, more personal features. They may also be used to provide services you have asked for.
The information these cookies collect may be anonymized and they cannot track your browsing activity on other websites.
These cookies are used to deliver advertising that may be relevant to you and your interests. They are also used to limit the number of times you see an advertisement as well as help measure the effectiveness of an advertising campaign.
They remember that you have visited a website and this information is shared with other organizations such as advertisers.