High Reliability Varistors by Littelfuse

Category: Electronics, Littelfuse Inc, Resistors

Description

Littelfuse’s High Reliability Varistors have been designed to provide peak performance and are suitable for applications that demand adherence to strict quality and reliability standards. These standards include military specifications such as MIL-STD-19500 and MIL-STD-750, Method 202, ensuring product consistency and dependability for critical uses. The varistors exhibit superior radiation hardness in comparison to Silicon Diode suppressors. This attribute is demonstrated in a comparison figure (Figure 1) within the datasheet, signifying Littelfuse’s advanced technological capabilities in producing varistors that can withstand harsher environments.

ZA Series

The datasheet highlights the ZA Series of Littelfuse High-Reliability Varistors. These components are offered under four distinct categories, catering to a range of requirements for reliability certification and qualification:

DSSC Qualified Parts List (QPL) MIL-R-83530: The series includes four items that are currently available and have met the stringent criteria set by MIL-R-83530 standards.
Littelfuse High Reliability Series TX Equivalents: This category boasts 29 available items that meet comparable levels of high-reliability and performance characteristics.
Custom Types Processed: Varistors in this category are manufactured according to customer-specific requirements (SCD) or adhere to Standard Military Flow, providing customization to meet unique application needs.

Agency Approvals

In addition to the QPL and custom options, the varistors have garnered a number of Agency Approvals signaling their broad acceptance and certification. These approvals include recognition and certifications from prominent international bodies:

DSSC Approved
QPL Listed
CECC Certified
ISO Approved
UL Recognized
CSA Certified

Additional Information

The datasheet also mentions the availability of Commercial Item Descriptors (CID) for government utilization. Specifically, it cites CID AA-55564-3 that refers to the Littelfuse ZA series. This suggests that the products are suitable and have been cataloged for government procurement, indicating a level of trust and standardization.

Resources

For those interested in obtaining more information or sampling products, the datasheet includes sections for resources and the availability of samples, demonstrating Littelfuse’s commitment to providing customers with the necessary tools to evaluate their High Reliability Varistors.

Note

The datasheet includes a disclaimer stating that “Specifications are subject to change without notice,” and it indicates the revision date as 09/03/14. This note ensures that readers are aware that the provided information is dynamic and may have been updated post-publication.