0157008.DR
Manufacturer
Model
0157008.DR
Category
The Littelfuse 0157008.DR disposable fuse provides robust overcurrent protection with a 50A interrupt rating and 8A continuous current handling at 125V DC. Its 20.23 I2t melting energy ensures reliable fault clearance in automotive and industrial systems. The SMD package (3.7x6.5mm) enables compact integration while maintaining operating temperatures from -55°C to +125°C. Engineers should prioritize proper soldering techniques and thermal management to maximize reliability, particularly in extended application scenarios like renewable energy systems.
Reference Pricing
Reference Stock
Specifications
| color | Not specified |
| dimensions | Packaging Specification: Surface Mount |
| fusing_characteristics | 2t (A2sec) 0.00019 |
| interrupting_time | 4 hours |
| operating_temperature_range | -55°C to 125°C with proper derating |
| package_type | Tape and F Reel |
| rated_current | 8A |
| rated_voltage | 125V |
Function And Role
Core Function
Overcurrent protection
Key Characteristics
- 50A interrupt rating
- 8A current rating
- 125V DC voltage rating
- 20.23 I2t melting energy
Application Domains
Basic Scenarios
- Automotive electronics
- Industrial control systems
Extended Scenarios
- Renewable energy inverters
- Medical device power supplies
Precautions
| Soldering | Use high-temperature solder paste and avoid prolonged heat exposure |
| Current Limit | Max continuous current: 8A |
| Voltage Limit | Max DC voltage: 125V |
| Thermal Management | Thermal dissipation rate: 0.192W |
| Storage | Store in <30% relative humidity environments |
| Risk Warnings |
|
Alternative Model Params
- I2t (20.23)
- Interrupt rating (50A)
- Voltage rating (125V DC)
- Current rating (8A)
- Operating temp (-55°C~+125°C)
Design Recommendations
| Layout | Maintain 3mm trace spacing for SMD packages |
| Thermal | Use 0.5W heat sinks for continuous operation |
| Compatibility | Verify SMD footprint matches 3.7x6.5mm dimensions |
| Testing | Validate I2t performance under 50A fault conditions |
Market Positioning
| Strengths |
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| Weaknesses |
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Datasheet
Assist inquiry
Distributors
Shenzhen Dongxing Microelectronics Technology Co., Ltd.
Shenzhen Yigecheng Technology Co., Ltd.
Shenzhen Kewei Ming Electronics Co., Ltd.
Shenzhen Kuanxiang Electronic Co., Ltd.
Shenzhen Nangeng Electronic Co., Ltd.
Shenzhen Hongliqingdian Technology Co., Ltd.
Shenzhen Alibaba Core City Electronic Technology Co., Ltd.
Shenzhen Anzhi Microelectronics Co., Ltd.
Shenzhen Anshangda Technology Co., Ltd.
Zhan Yao Co., Ltd.
Shenzhen Anxinmei Electronics Co., Ltd.
Shenzhen Futian District Binhaoshengye Electronic Commerce
Lan Jing Century (Shenzhen) Technology Co., Ltd.
Beijing Misri Electronic Co., Ltd.
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Shenzhen Changhe Century Technology Co., Ltd.
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Shenzhen Chenke Science and Technology Development Co., Ltd.
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