Original micro fuse — glass tube construction, sluggish (T) trigger time Key benefits Protects sensitive circuits by interrupting excessive current before damage occurs. Glass tube construction allows quick visual inspection to confirm fuse integrity. Sluggish (T) trigger time tolerates short inrush currents or startup spikes while still protecting against sustained overloads. Micro form factor fits compact electronics and PCB-mounted applications where space is limited. What this fuse does Acts as a sacrificial current limiter: when current exceeds safe levels for a sustained period, the fuse opens to prevent component damage or fire risk. The sluggish (T) characteristic provides time-delay protection for circuits with brief, harmless surges (for example, motor starts or capacitor charging). Key attributes Product type: Original micro fuse Construction: glass tube Trigger time: Sluggish (T) — time-delay/slow-blow behavior Size: micro form factor suitable for compact applications Material: glass tube body for visibility and reliable containment Practical applications Power supplies and adapters where startup inrush can cause nuisance blowing of fast fuses. Small motors, relays, or solenoid circuits that produce brief current spikes on startup. Consumer electronics, measurement instruments, and PCB assemblies requiring compact, visible overcurrent protection. Why choose this fuse Designed for reliable protection in compact equipment. Slow-blow (sluggish T) behavior minimizes unnecessary replacements caused by harmless transient currents. Glass construction speeds troubleshooting by making fuse status visible without removal. Installation and compatibility notes Fits micro fuse holders and PCB clips sized for glass tube micro fuses. Verify electrical ratings (current and voltage) of the specific original micro fuse you have to ensure proper match for your application.