0154004.DRT LITTELFUSE Fuse (Other) In Stock
Littelfuse 0154004.DRT is a surface-mount time-lag NANO2 fuse rated at 4 A, measuring 9.73 mm x 5.03 mm x 3.81 mm, providing overcurrent protection with a 53 J joule integral for electronic circuits and power conversion equipment.
- Manufacturer
- LITTELFUSE
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- 0154004.DRT Datasheet PDF
- Category
- Fuse
- Price
- From $1.4820(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Time-lag (slow-blow) characteristic allows harmless inrush currents while clearing sustained overloads at 4 A rating
- NANO2 surface-mount form factor (9.73 mm x 5.03 mm x 3.81 mm) enables compact PCB integration
- 53 J nominal joule integral ensures predictable overcurrent protection energy coordination
- RoHS-compliant JESD-609 Code e3 for lead-free assembly processes
- Rated for surface-mount reflow soldering compatible with automated PCB production lines
Applications
The Littelfuse 0154004.DRT time-lag fuse is used in power supplies, battery management systems, and motor drive boards where brief inrush currents up to several times the 4 A rating must be tolerated without nuisance tripping. Its surface-mount NANO2 package allows direct PCB placement in consumer electronics, industrial control modules, and telecom power distribution units. Design engineers select this fuse for overcurrent coordination in circuits where the slow-blow characteristic provides the necessary hold time during startup transients while reliably clearing sustained fault conditions.
Specifications
| YTEOL | 7 |
| Blow Characteristic | TIME LAG |
| Body Breadth | 5.03mm |
| Body Height | 3.81mm |
| Body Length or Diameter | 9.73mm |
| Circuit Protection Type | ELECTRIC FUSE |
| Fuse Size | NANO2 |
| JESD-609 Code | e3 |
| Joule Integral-Nom | 53J |
| Mounting Feature | SURFACE MOUNT |
| Packing Method | TR |
| Rated Breaking Capacity | 50A |
| Rated Current | 4A |
| Rated Voltage(AC) | 125V |
| Rated Voltage(DC) | 125V |
| Reference Standard | CUL; PSE; UL |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Shape | WRAPAROUND |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.10.00.40 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the time-lag blow characteristic of the 0154004.DRT differ from a fast-acting fuse in power supply protection?
The 0154004.DRT uses a time-lag (slow-blow) characteristic, meaning it can withstand short-duration inrush currents several times its 4 A rating without opening, while still clearing sustained overloads. A fast-acting fuse would blow immediately on startup inrush, causing nuisance trips. The 53 J joule integral specifies the energy the fuse can absorb before clearing, making coordination with downstream circuit breakers predictable.
What PCB footprint dimensions should I plan for when placing the 0154004.DRT NANO2 fuse?
The 0154004.DRT body measures 9.73 mm in length, 5.03 mm in breadth, and 3.81 mm in height. Engineers should reserve at least 11 mm x 6 mm of board area including pad extensions and clearance, per the NANO2 surface-mount land pattern. This compact footprint is significantly smaller than traditional 5x20 mm glass fuses, enabling tighter power distribution layouts.
For which industrial or consumer applications is the Littelfuse 0154004.DRT a suitable overcurrent protection device?
At 4 A and with a slow-blow characteristic, the 0154004.DRT suits applications such as switching power supply primary circuits, battery chargers, industrial sensor modules, and LED driver boards. Its 53 J joule integral and NANO2 surface-mount package make it effective in automotive accessory circuits, HVAC control boards, and telecom equipment where inrush tolerance and PCB-mount convenience are required.
Does the 0154004.DRT comply with RoHS requirements, and what is its JESD-609 designation?
Yes, the 0154004.DRT carries JESD-609 Code e3, which indicates the component is manufactured with a lead-free, RoHS-compliant finish suitable for reflow soldering processes at standard SAC alloy peak temperatures of 260°C. This makes it compatible with modern green electronics assembly lines and simplifies compliance documentation for EU and international market products.
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About LITTELFUSE
LITTELFUSE is a leading electronic component manufacturer. FindMyChip sources LITTELFUSE ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.3900 | $5.39 |
| 4+ | $1.4820 | $5.93 |
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