Eaton TPS-25L Telecommunication Fuse - 100 kAIC RoHS
Part Number: TPS-25L
Quick Summary
TPS-25L telecommunication fuse from Eaton protects telecom power rails and PCB circuits in data centers and network gear. Engineers often wrestle with nuisance trips or slow protection when faults occur on crowded DC rails. RoHS compliance and CE marking ensure global deployment; the device also offers 25 A, 170 Vdc, and 100 kAIC protection. This fuse's PCB tab mounting and current-limiting action help minimize board real estate and maintenance costs, aligning with modern telecom and data-center procurement goals. Its glass melamine tube technology and silver-plated ferrules deliver reliable performance in harsh environments. The non-indicating design minimizes visual wear on indicator circuits while delivering precise protection on DC telecom rails.
Product Information
Extended Description
TPS-25L Eaton: Eaton Bussmann series TPS telecommunication fuse, PCB tab, 170 Vdc, 25 A, 100 kAIC, Non Indicating, Current-limiting, Glass melamine tube, Silver-plated brass ferrules
Product Name
Eaton Bussmann series TPS telecommunication fuse
Catalog Number
TPS-25L
UPC
051712562058
Product Length/Depth
0.56 in
Product Height
0.88 in
Product Width
0.56 in
Product Weight
0.3 lb
Warranty
Not Applicable
Compliances
RoHS Compliant CE Marked
Amperage Rating
25 A
Interrupt rating
100 kAIC
Voltage rating
170 Vdc
Packaging type
Standard
Fuse indicator
Non-indicating
Special features
PCB tab
TPS-25L~TELPOWER 25A W/END TERMIN
TPS-25L~TELPOWER 25A W/END TERMIN
Bussmann series Fuseology
Eaton Specification Sheet - TPS-25L
Feature → Business Impact → Application: The TPS-25L uses a PCB tab connection, enabling compact board layouts and faster assembly, which reduces time-to-production in telecom equipment and network gear. This translates to lower labor costs and tighter project timelines. Application: Data-center power modules and line-card assemblies benefit from a small footprint without sacrificing protection. Feature → Business Impact → Application: Current-limiting, fast-acting protection minimizes arc energy and downstream damage during faults, reducing downtime and extending component life in critical DSU/PSU circuits. Application: Network switches and customer premises equipment (CPE) DC rails require reliable protection with minimal false trips. Feature → Business Impact → Application: An interrupt rating of 100 kAIC provides robust fault tolerance in high-current environments, improving resilience in telecom racks and UPS input stages. Application: Server room and central office deployments where fault current can surge. Feature → Business Impact → Application: 170 Vdc voltage rating supports telecom DC distribution, ensuring safe operation across typical telecom power rails and DC-rail protection schemes. Application: DC distribution panels and telecom line cards. Feature → Business Impact → Application: Glass melamine tube construction with silver-plated ferrules delivers durability and stable conductivity in rugged environments, reducing maintenance cycles. Application: Harsh industrial telecom installations and outdoor-rated enclosures. Feature → Business Impact → Application: Non-indicating fuse design minimizes indicator-related wear on assemblies while maintaining reliable protection, simplifying visual checks and diagnostics. Application: Space-constrained PCB layouts in dense telecom equipment. Feature → Business Impact → Application: RoHS compliant and CE marked ensures regulatory compliance across global deployments, easing procurement for multinational networks. Application: Global telecom and data-center deployments with strict environmental standards.
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FAQs
TPS-25L uses a PCB tab termination designed for direct mounting on standard circuit boards. During installation, ensure adequate solder fillets, proper copper thickness, and sufficient clearance for 170 Vdc operation. Secure mechanical mounting to withstand vibration, and follow anti-oxidation practices to preserve the silver-plated ferrules. This minimizes contact resistance and enhances long-term reliability.
The TPS-25L provides a 25 A amperage rating, a 170 Vdc voltage rating, and a 100 kAIC interrupt rating, with current-limiting protection and a glass melamine tube construction. It is non-indicating, featuring PCB tab terminations and RoHS CE compliance. These specs support fast response to faults while protecting downstream electronics in telecom DC rails.
Yes. The TPS-25L is designed for telecom and data-center applications, protecting DC power rails and board-level circuits. Its 170 Vdc rating aligns with telecom power architectures, while the 25 A current rating and 100 kAIC interrupt capability provide robust protection against short circuits. The PCB tab design also helps with compact, reliable integration in dense equipment.
The TPS-25L is RoHS compliant and CE marked, meeting European regulatory requirements for environmental and safety standards. While not offering indicators or SIL ratings, these certifications support global deployment in regulated markets and align with standard procurement expectations for telecom and industrial equipment.
Using the TPS-25L can lower maintenance and downtime by delivering reliable current-limiting protection and fast fault response in DC rails. Its durable construction with a PCB tab, glass-melamine tube, and silver-plated ferrules reduces replacement frequency. The compact footprint frees board space, enabling higher device density and favorable total cost of ownership for telecom and data-center deployments.