Welcome to China Electron !

0154003.DRT

Manufacturer

Littelfuse

Model

0154003.DRT

Category

protection_devices
fuses

The Littelfuse 0154003.DRT is a 3A/125V SMD fuse with 50A interrupt capability designed for overcurrent protection in consumer and automotive applications. Its compact package and ROHS compliance make it suitable for space-constrained electronics, while thermal management requirements necessitate careful PCB layout. The component is optimized for high-volume manufacturing but limited to low-voltage DC/AC systems.

Reference Pricing

1+ :$1.5078
10+ :$1.057
30+ :$1.134
100+ :$0.833
500+ :$0.8666

Reference Stock

Available:2076

Specifications

colorNot specified
dimensionsNot specified
fusing_characteristicsSlo-Blo
interrupt_timeNot specified
operating_temperature_rangeNot specified
package_typeMiniature
rated_current3.0A
rated_voltageNot specified

Function And Role

Core Function

Overcurrent protection

Key Characteristics

  • 50A interrupt rating
  • 3A current rating
  • 125V AC/DC voltage rating
  • SMD package with holder
  • ROHS compliant

Application Domains

Basic Scenarios

  • Consumer electronics
  • Automotive circuit protection

Extended Scenarios

  • Industrial equipment
  • Renewable energy systems

Precautions

Soldering

Use proper SMD soldering techniques to avoid pad damage

Current Limit

Max operating current: 3A

Voltage Limit

Max voltage: 125V AC/DC

Thermal Management

Ensure proper heat dissipation in high-temperature environments

Storage

Store in dry, cool environments away from conductive materials

Risk Warnings
  • Avoid reverse polarity installation
  • Do not exceed 50A interrupt rating

Alternative Model Params

  • Interrupt rating (50A)
  • Current rating (3A)
  • Voltage rating (125V AC/DC)
  • Package type (SMD)
  • ROHS compliance

Design Recommendations

Layout

Ensure 10mil clearance from adjacent components

Thermal

Use 0.5W heat sink for power >1W

Compatibility

Verify solder paste compatibility with 0.5mm pitch

Testing

Test under 1.5x rated current for 1 minute

Market Positioning

Strengths
  • High reliability in transient suppression
  • Compact 9.7x5mm footprint
  • Cost-effective for high-volume production
Weaknesses
  • Limited to 125V applications
  • Higher BOM cost vs through-hole fuses

Datasheet