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Image source: Maker series photo: Littelfuse MEGA High Performance 70V-SF51 fuses, the product picture on page 1 of Littelfuse's datasheet for its 998 series, whose ordering table prints "0998xxx.UX-2M8 60 - 500 M8 2 500" and whose ratings table prints "0998100._ 100". It shows five fuses marked 80 A to 500 A, with two, one or no mounting holes, so it is not specific to the 0998100.UX-2M8. Figure from the manufacturer's document, page 1.No sellers found.
DigiKey prints "0998100.UX-2M8" in the Manufacturer Part Number column of its Littelfuse 998 series product highlight page, row "0998100.UX-2M8 FUSE AUTO 100A 70VDC AUTO LINK 70 V" (captured on October 13, 2026). Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document.
Distributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: "MEGA® Fuse - M8 Bolt Hole" table, row 0998100.UX-2M8, Manufacturer Part Number column
Documented
Littelfuse's datasheet (PDF page 1) prints "Refer to: ISO 20934 - Type SF51" and the heading "MEGA® High Performance Series Bolt-down Fuses – Rated 70V-SF51". The earlier note's statement that no fuse class under a fuse standard is printed described DigiKey's page; the maker's datasheet prints ISO 20934 Type SF51. Corrected on November 2, 2026: the catalog had published MEGA 70 V high performance (998 series), cited to DigiKey (digikey.com). Littelfuse's own datasheet, now the primary source, prints the class: "Refer to: ISO 20934 - Type SF51" and the heading "MEGA® High Performance Series Bolt-down Fuses – Rated 70V-SF51". DigiKey's "High Performance 70 V MEGA" wording stays listed as the other source; the two agree. Earlier note: "DigiKey prints "High Performance 70 V MEGA® Automotive Bolt Down Fuses" with the 998 series name, and "Littelfuse's MEGA 70 V high performance (HP) automotive fuse". No fuse class under a fuse standard is printed. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document."
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: PDF page 1, page heading and Specifications
Documented
DigiKey prints "Voltage rating: 70 V DC" for the 998 series and "70VDC" in this part's description; no AC rating is printed. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "Voltage Rating: 70 V DC" in its Specifications table (PDF page 1); no AC rating is printed. Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: Features list, Voltage rating; "MEGA® Fuse - M8 Bolt Hole" table, row 0998100.UX-2M8
Documented
DigiKey lists this part under the heading "MEGA® Fuse - M8 Bolt Hole". Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "0998xxx.UX-2M8 60 - 500 M8 2 500" in its ordering table (PDF page 1; columns Part Number, Current Rating (A), Bolt Size, Bolt Hole Qty., Package Size), and its dimension drawing (PDF page 2) gives the hole as "M8: ø 8.6" mm. Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: "MEGA® Fuse - M8 Bolt Hole" table heading
Documented
DigiKey prints "0998100.UX-2M8 FUSE AUTO 100A 70VDC AUTO LINK 70 V" (part number, description, DC voltage rating) for this part. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "0998100._ 100" in its Ratings table (PDF page 2), the row for this rating under the family part number "0998xxx.UX-2M8 60 - 500 M8 2 500" of its ordering table (PDF page 1). Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: "MEGA® Fuse - M8 Bolt Hole" table, row 0998100.UX-2M8, Description column
Documented
DigiKey prints "0998100.UX-2M8 FUSE AUTO 100A 70VDC AUTO LINK 70 V" for this part and "Voltage rating: 70 V DC" in the series features list. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "Voltage Rating: 70 V DC" in its Specifications table (PDF page 1). Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: "MEGA® Fuse - M8 Bolt Hole" table, row 0998100.UX-2M8, Voltage Rating - DC column
Documented
DigiKey prints "Interrupting rating: 2500 A @ 70 V DC" in the features list of the 998 series highlight page, which lists this part; the page prints no figure per part. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "Interrupting Rating: 2500 A @ 70 V DC" in its Specifications table (PDF page 1), for the whole series. Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: Features list, Interrupting rating
Documented
DigiKey prints "Operating temperature range: -40°C to +125°C" in the features list of the 998 series highlight page, which lists this part. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "Recommended Environmental Temperature: –40 ˚C to +125 ˚C" in its Specifications table (PDF page 1); it names the range a recommended environmental temperature. Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: Features list, Operating temperature range
Documented
Littelfuse's datasheet (PDF page 1) prints "Refer to: ISO 20934 - Type SF51" and the heading "MEGA® High Performance Series Bolt-down Fuses – Rated 70V-SF51". The earlier note's statement that no fuse class under a fuse standard is printed described DigiKey's page; the maker's datasheet prints ISO 20934 Type SF51. Corrected on November 2, 2026: the catalog had published MEGA 70 V high performance (998 series), cited to DigiKey (digikey.com). Littelfuse's own datasheet, now the primary source, prints the class: "Refer to: ISO 20934 - Type SF51" and the heading "MEGA® High Performance Series Bolt-down Fuses – Rated 70V-SF51". DigiKey's "High Performance 70 V MEGA" wording stays listed as the other source; the two agree. Earlier note: "DigiKey prints "High Performance 70 V MEGA® Automotive Bolt Down Fuses" with the 998 series name, and "Littelfuse's MEGA 70 V high performance (HP) automotive fuse". No fuse class under a fuse standard is printed. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document."
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: PDF page 1, page heading and Specifications
Documented
DigiKey prints "Voltage rating: 70 V DC" for the 998 series and "70VDC" in this part's description; no AC rating is printed. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "Voltage Rating: 70 V DC" in its Specifications table (PDF page 1); no AC rating is printed. Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: Features list, Voltage rating; "MEGA® Fuse - M8 Bolt Hole" table, row 0998100.UX-2M8
Documented
DigiKey lists this part under the heading "MEGA® Fuse - M8 Bolt Hole". Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "0998xxx.UX-2M8 60 - 500 M8 2 500" in its ordering table (PDF page 1; columns Part Number, Current Rating (A), Bolt Size, Bolt Hole Qty., Package Size), and its dimension drawing (PDF page 2) gives the hole as "M8: ø 8.6" mm. Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: "MEGA® Fuse - M8 Bolt Hole" table heading
Documented
DigiKey prints "0998100.UX-2M8 FUSE AUTO 100A 70VDC AUTO LINK 70 V" (part number, description, DC voltage rating) for this part. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "0998100._ 100" in its Ratings table (PDF page 2), the row for this rating under the family part number "0998xxx.UX-2M8 60 - 500 M8 2 500" of its ordering table (PDF page 1). Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: "MEGA® Fuse - M8 Bolt Hole" table, row 0998100.UX-2M8, Description column
Documented
DigiKey prints "0998100.UX-2M8 FUSE AUTO 100A 70VDC AUTO LINK 70 V" for this part and "Voltage rating: 70 V DC" in the series features list. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "Voltage Rating: 70 V DC" in its Specifications table (PDF page 1). Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: "MEGA® Fuse - M8 Bolt Hole" table, row 0998100.UX-2M8, Voltage Rating - DC column
Documented
DigiKey prints "Interrupting rating: 2500 A @ 70 V DC" in the features list of the 998 series highlight page, which lists this part; the page prints no figure per part. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "Interrupting Rating: 2500 A @ 70 V DC" in its Specifications table (PDF page 1), for the whole series. Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: Features list, Interrupting rating
Documented
DigiKey prints "Operating temperature range: -40°C to +125°C" in the features list of the 998 series highlight page, which lists this part. Distributor fallback: Littelfuse's own pages and datasheet were not reachable to our tools, so this is DigiKey's statement, not a Littelfuse document. Littelfuse's datasheet prints "Recommended Environmental Temperature: –40 ˚C to +125 ˚C" in its Specifications table (PDF page 1); it names the range a recommended environmental temperature. Re-cited on November 2, 2026 to the manufacturer's own document; previously cited to DigiKey (digikey.com), which stays listed as an additional source.
Official datasheet: Littelfuse MEGA High Performance Series Bolt-down Fuses, Rated 70V-SF51 datasheet (998 series, revised 09/24/2026) (November 2, 2026 capture) Rev Revised 09/24/2026 · September 24, 2026 · Checked · Earlier documentDistributor product page: DigiKey product highlight: High Performance 70 V MEGA Automotive Bolt Down Fuses, 998 Series (Littelfuse) (October 13, 2026 capture) Checked · Earlier documentLocation: Features list, Operating temperature range
Documented
Published claims and calculations, not independent test results.
The address names the file littelfuse_datasheet_998_mega_hp_70v_sf51_r2.4.pdf; the file served was named Littelfuse-Datasheet-998-MEGA-HP-70V-SF51-r4-1.pdf. Obtained by Alternative Research in an ordinary browser tab, captured 2026-11-02T16:53:14.824Z (archived copy).
Location: PDF page 1 (product picture, Features & Benefits, Specifications, Ordering Information); PDF page 2 (Ratings, one row per current rating; Dimensions); PDF pages 3 and 4 (time-current and derating curves)
Retrieved
Littelfuse's own 4-page datasheet for its MEGA High Performance 70V-SF51 bolt-down fuses, part numbers 0998xxx.UX-2M8, -1M8, -2M6, -1M6 and -NH in ratings of 60 A to 500 A, revised 09/24/2026. Obtained by Alternative Research on November 2, 2026 (download completed 16:53:14.824 UTC) as Littelfuse serves it, because Littelfuse's site answers our fetcher with a 403; each fact was checked against the printed page. It prints family part numbers with xxx for the rating, and one Ratings row per rating. Manufacturer claims, not independent tests.
Archived copy of a document published by Littelfuse. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Littelfuse published. Original address: https://www.littelfuse.com/assetdocs/littelfuse_datasheet_998_mega_hp_70v_sf51_r2.4.pdf?assetguid=01891f75-4b5c-40fe-900a-f1b91afc557a. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 5ef870248eebf934554b205456845b456bdabb861cbb55082bf4a52ca1b169ac
Archived copy captured on 2026-10-13.
Location: Features list; "MEGA® Fuse - M6 Bolt Hole" and "MEGA® Fuse - M8 Bolt Hole" tables
Retrieved
DigiKey's product highlight page for Littelfuse's 998 series MEGA 70 V fuses (published 2022-05-10), captured on October 13, 2026. Used as a distributor fallback because Littelfuse's own site and datasheet were not reachable to our tools. It prints a series features list and two part tables (M6 and M8 bolt hole) with part number, description and DC voltage rating. These are DigiKey's statements, not a Littelfuse document; prices and stock shown on the page are not recorded.
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Archived copy of a document published by Littelfuse. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Littelfuse published. Original address: https://www.littelfuse.com/assetdocs/littelfuse_datasheet_998_mega_hp_70v_sf51_r2.4.pdf?assetguid=01891f75-4b5c-40fe-900a-f1b91afc557a. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 5ef870248eebf934554b205456845b456bdabb861cbb55082bf4a52ca1b169ac
No warranty terms on file.
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Manufacturer SKU 0998100.UX-2M8
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