Ultra-Rapid Semiconductor Fuses

DENCO ultra-rapid semiconductor fuses protect thyristors, diodes, rectifiers and other solid-state devices. They are current-limiting with very low I²t let-through, supplied in Form 101 cylindrical, NH square body and ferrule cartridge formats.

Request a quoteCross-reference a partCall +1 (305) 273-6226

Specifications

Series in the catalog

• Semiconductor fuse application notes (catalog pp.9–20)
• Form 101 cylindrical semiconductor fuses (catalog pp.98–100)
• DIN 43620 knife-blade semiconductor fuses (aR/gR) (catalog pp.98, 101–104, 112, 122)
• DIN 43653 German-standard semiconductor fuses (catalog pp.98, 105–106, 108–111, 117–121, 123–124, 128–131)
• American Standard (BS 88) NH semiconductor fuses (catalog pp.98, 113–114, 125)
• Press-pack semiconductor fuses (catalog pp.98, 115, 126)
• French standard semiconductor fuses (catalog pp.98, 107, 116, 127)
• Ferrule semiconductor protection fuses (catalog pp.98, 132)

Catalog numbers

Applications

• Thyristors, triacs and diodes
• Electrochemical rectifiers
• DC drives, UPS and inverters
• Heavy traction equipment

Limits and boundaries

• Ultra-rapid characteristic — not a substitute for general-purpose overload protection

Standards and testing

• In accordance with IEC 269.1
• In accordance with VDE 636-23
• In accordance with UL / CSA

Wording reflects the evidence DENCO holds. “Designed to” a standard is not the same as certified or listed to it; where a certification exists we publish the certificate number.

Technical documents

Data sheets, dimensional drawings and time-current curves for this family are available on request. Ask for the documents you need.

What we need to quote

Voltage and whether the system is AC or DC, continuous current, required interrupting rating, physical dimensions and mounting, any indicator requirement, and the standard or approval you must meet. A photograph or drawing of the existing part is usually the fastest route.

Common questions

12 more questions about ultra-rapid semiconductor fuses in the full list of fuse questions.

Technical review

Specifications on this page are quoted from DENCO’s product catalog. Confirm any rating against DENCO engineering before specifying.

Related

• All fuse product families
• Cross-reference and discontinued replacement

Request a quote for Ultra-Rapid Semiconductor Fuses