Protective device with laser-trimmed melt element
DE602022030023T2Active Publication Date: 2026-02-11LITTELFUSE INC
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Patent Information
- Application Number
- DE602022030023
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-03-25
- Filing Date
- 2022-03-24
- Publication Date
- 2026-02-11
- Estimated Expiration
- 2042-03-24
AI Technical Summary
Technical Problem
Existing fuses exhibit imprecise resistance tolerance, which can lead to inefficiencies in circuit protection.
Method used
The use of laser-trimmed fusible elements on a rigid glazed ceramic substrate, allowing for precise resistance adjustment within +/- 5% tolerance, achieved through laser ablation to form recesses in the fusible elements.
Benefits of technology
The solution provides precise resistance control, enhancing the circuit protection device's performance by ensuring accurate resistance values and improved circuit isolation.
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