Engineering selection workflow
01
Define
Normal operation and protection target.
02
Derate
Check temperature and worst-case conditions.
03
Verify
Review package, approvals and test limits.
04
Sample
Validate performance in the actual circuit.
Selection worksheet
Use this checklist when requesting a recommendation or cross-reference.
| # | Parameter | Review stage | Source |
|---|---|---|---|
| 1 | Rated current | Required for initial family selection | Circuit requirement |
| 2 | Rated voltage | Required for initial family selection | Circuit requirement |
| 3 | Breaking capacity | Confirm before sampling | Application / qualification requirement |
| 4 | Fast-acting or time-lag response | Confirm before sampling | Application / qualification requirement |
| 5 | Operating temperature | Confirm before sampling | Application / qualification requirement |
| 6 | Package and approvals | Confirm before sampling | Application / qualification requirement |
Technical resource requests
Cross Reference
Comparison against an incumbent part number using critical parameters.Quality Documents
Currently available approval or quality documents for project review.Available product families
0402, 0603, 1206, 2410 and WSFB / WSFC / WSFD families
Typical applications
Power supplies, battery packs, automotive electronics, lighting and compact consumer products.
Selection parameters
- Rated current
- Rated voltage
- Breaking capacity
- Fast-acting or time-lag response
- Operating temperature
- Package and approvals
How to request a recommendation
Send the normal operating condition, worst-case fault condition, ambient temperature, mechanical limits, required approvals and estimated annual quantity. Final suitability must be verified in the actual circuit.
What parameters are required to select SMD & Three-Terminal Fuses?
Provide the values listed above together with the target application and incumbent part number, if available. We can then identify the relevant EKT family and confirm which controlled datasheet or quality documents are available.
Discuss your application with EKT
Ask for a datasheet, cross-reference review, sample or quotation.
Send Product Requirements