15. PPTC Fuse for Speaker Output Protection
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RUSBF250
| DigiKey Part No | RUSBF250HF-ND |
| Mfr Part No | RUSBF250 |
| Manufacturer | Littelfuse Inc. |
PTC RESET FUSE 16V 2.5A RADIAL
Polymeric PTC Resettable Fuse 16V 2.5 A Ih Through Hole Radial, Disc
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✅ Component type/category matches: PTC resettable fuse in DigiKey Circuit Protection - PTC Resettable Fuses.
✅ Manufacturer matches AVL requirement: Littelfuse Inc.
✅ Type: Polymeric, as required.
✅ Current - Hold (Ih): 2.5A, which is within the required 2.0A to 2.5A range and provides margin above the ~1.6A RMS normal speaker current.
✅ Voltage - Max: 16V, satisfying the minimum ≥16V requirement for a 12V amplifier output.
✅ Current - Max: 40A, exceeding the required ≥10A short-circuit withstand capability.
✅ Mounting Type: Through Hole, as required.
✅ Operating Temperature: -40°C to 85°C, matching the required range.
✅ RoHS compliance: ROHS3 Compliant, satisfying the requirement.
All listed requirements are satisfied. This Littelfuse RUSBF250 is an approved choice for speaker output overcurrent protection in this design.
✅ Manufacturer matches AVL requirement: Littelfuse Inc.
✅ Type: Polymeric, as required.
✅ Current - Hold (Ih): 2.5A, which is within the required 2.0A to 2.5A range and provides margin above the ~1.6A RMS normal speaker current.
✅ Voltage - Max: 16V, satisfying the minimum ≥16V requirement for a 12V amplifier output.
✅ Current - Max: 40A, exceeding the required ≥10A short-circuit withstand capability.
✅ Mounting Type: Through Hole, as required.
✅ Operating Temperature: -40°C to 85°C, matching the required range.
✅ RoHS compliance: ROHS3 Compliant, satisfying the requirement.
All listed requirements are satisfied. This Littelfuse RUSBF250 is an approved choice for speaker output overcurrent protection in this design.
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