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Automotive-Grade Encapsulated Automotive-Grade Alloy Current-Sensing / Shunt Resistor
Product Details:
| Place of Origin: | Dongguan，Guangdong,China |
| Brand Name: | UCHI |
| Model Number: | UL.VDE,SGS,REACH,CQC,CSA.ISO.ROHS,CUL |
Payment & Shipping Terms:
| Minimum Order Quantity: | 5000PCS |
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| Price: | Negotiable |
| Packaging Details: | Bulk/Ammo/Reel |
| Delivery Time: | 5-7 days |
| Payment Terms: | T/T,Paypal,Western Union,Money gram |
| Supply Ability: | 5000,000,000PCS Per Month |
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Detail Information |
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| Storage Temperature: | -40℃~+85℃ | Warranty: | 2year |
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| Relative Humidity: | ≤95% | Max Allowable Voltage: | Vrms：680V DC: 895(V) |
| Pin Type: | Radial | Lead Type: | Straight Or Crimped |
| Operating Temp: | –25 To +120°C | Eccn: | EAR99 |
| Color: | Silvery Gey | Resistance Tolerance: | 10% |
| Number Of Circuits: | 1 | Mov Type: | Metal Oxide Varistor |
| Lead Spacing: | 22±1mm | Insulation Resistance: | ≥1000MΩ |
| Disc Size: | 10mm | ||
| Highlight: | Automotive-grade alloy shunt resistor,Encapsulated current-sensing resistor,Metal oxide varistor with warranty |
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Product Description
utomotive-Grade Encapsulated Alloy Resistor
Automotive-grade encapsulated alloy resistor (also known as automotive-grade alloy current-sensing / shunt resistor; “encapsulated” refers to the process of fully protecting the resistive core with high thermal conductivity epoxy or similar materials) is a core component for current detection in automotive electronics. It must pass the AEC-Q200 automotive qualification and comply with IATF16949 supply chain management requirements.
Core Definition and Structure
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Materials:The resistive element is mostly made of alloys such as manganin, nichrome, and constantan (low temperature drift, high stability).The encapsulation uses high thermal conductivity epoxy resin for full coverage.The terminal electrodes are usually Ag-Pd alloy for sulfuration resistance.Some high-end models adopt 4-terminal (Kelvin connection) to improve sensing accuracy.
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Process:Precision processing of alloy foil / sheet → laser trimming → encapsulation molding → terminal electrode plating → full inspection.Compared with bare alloy resistors, the encapsulated structure provides better moisture resistance, vibration resistance, corrosion resistance, and soldering consistency.
Automotive-Grade Requirements
- Must pass AEC-Q200 tests (temperature cycling, thermal shock, vibration, humidity, resistance to soldering heat, etc.).
- Operating temperature range: typically -55℃ ~ 170℃.
- Moisture sensitivity level: MSL 1.
- Compliant with RoHS and halogen-free standards.
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Typical Applications
- New Energy Vehicles: Current sensing for BMS (Battery Management System), OBC (On-Board Charger), DC/DC converters, and motor controllers.
- Traditional Vehicles: Engine ECU, ABS/ESP, lighting power supply, and transmission control.
- Charging Facilities: Power detection for charging stations.
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Main Brands & Models
- International: Vishay WSL/WSK, Panasonic ERJ, ROHM LRM.
- Domestic (China): Fenghua Advanced AMG/AMS, Huade MSU/MSHL, HoYao HoCG2512.
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