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.

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Specifications

Catalog numbers

Full list renders once DENCO confirms per-part availability (Q2).

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.

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

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