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Compact Shielded 4R7 Molded Power Inductor SMD Low Loss Stable For DC Conversion
Place of Origin:
China
Brand Name:
CHIPSEN
Certification:
UL/cUL Class B/F/H, VDE, CQC
Model Number:
4R7
Minimum Order Quantity:
1K
Price:
＄0.5-1.8/pieces
Delivery Time:
7-14 work days (Negotiable)
Payment Terms:
T/T
Supply Ability:
10000pcs
Inquiry Now
Get A Quote
Specifications
Highlight Features
4R7 power inductor smd
,Shielded power inductor smd
,DC Conversion surface mount inductor
Inductance:
4.7 Microhenries
Tolerance:
±20%
Current Rating:
0.1A To 10A
Saturation Current:
Varies By Model
DC Resistance:
Low DCR Options
Mounting Type:
Surface Mount
Product Description
Compact Shielded 4R7 Molded SMD Power Inductor
Low Loss Stable Performance for DC Conversion Applications
Product Overview
The 4R7 marking represents a nominal inductance of 4.7 microhenries. Actual inductance, package dimensions, and current rating must be confirmed through approved drawings and electrical specifications. Typical values serve as purchasing references rather than guaranteed product ratings.
Industry Applications & Specifications
| Industry and Application | Typical Operating Conditions | Key Purchasing Parameters | Available Customization |
|---|---|---|---|
| Industrial Automation | 12V, 24V and 48V DC control systems | Inductance, rated current, saturation current, DCR, temperature rise, dimensions | Inductance, current, DCR, footprint, height, terminals, temperature class |
| Point of Load Converter | Low voltage high current buck converter | Saturation current, RMS current, low DCR, switching frequency, transient response | Core material, conductor structure, inductance tolerance, current capacity |
| Telecom and Network Equipment | 12V, 24V and 48V distributed power systems | Efficiency, ripple current, thermal performance, compact dimensions | Low DCR design, magnetic material, footprint, packaging |
| Server and Data Equipment | Processor, memory, storage and auxiliary power rails | High saturation current, low power loss, transient response, reliability | Inductance, DCR, saturation curve, dimensions, thermal optimization |
| Charging Equipment | USB power delivery, battery charger and adapter circuits | Compact size, efficiency, current capability, temperature rise | Package dimensions, inductance, terminals, marking, tape and reel packaging |
| Automotive Electronics | 12V, 24V and 48V auxiliary electronic systems | Wide temperature capability, vibration resistance, saturation current, traceability | Automotive material selection and validation plans |
| Robotics and Motor Control | Controller power stage, sensor supply and auxiliary converter | Peak current, saturation margin, vibration resistance, thermal stability | Reinforced terminals, winding structure, magnetic material, reliability testing |
| LED Lighting | Constant current buck and boost driver circuits | Current ripple, inductance tolerance, DCR, audible noise, temperature rise | Inductance, current rating, dimensions, low noise design |
Custom Design Parameters
| Parameter | Information Required from Customer |
|---|---|
| Nominal Inductance | Target inductance and measurement frequency |
| Inductance Tolerance | ±10%, ±20% or customer specified |
| Rated Current | Maximum continuous RMS operating current |
| Saturation Current | Peak current and permitted inductance reduction |
| DC Resistance | Target or maximum DCR at specified temperature |
| Switching Frequency | Normal and maximum switching frequency |
| Converter Topology | Buck, boost, buck-boost, multiphase or filtering circuit |
| Input Voltage | Minimum, nominal and maximum input voltage |
| Output Conditions | Output voltage, continuous current and peak current |
| Operating Temperature | Minimum and maximum ambient or component temperature |
Product Description
The 4R7 molded SMD power inductor is designed for high current energy storage, current smoothing, and power filtering in compact switching power supplies. The 4.7 microhenry nominal value is commonly selected for high current buck converters, point of load regulators, battery powered systems, charging equipment, and industrial DC-DC power modules.
Molded magnetic construction surrounds the internal winding to reduce magnetic flux leakage, improve mechanical protection, and support high density PCB layouts. The surface mount package is suitable for automated pick-and-place assembly and reflow soldering.
Product Construction
| Construction Element | Description |
|---|---|
| Magnetic Body | Molded magnetic composite selected according to frequency, current loss and temperature requirements |
| Internal Winding | Copper conductor designed according to inductance, current and DCR targets |
| Shielded Structure | Molded magnetic body helps reduce external magnetic flux leakage |
| Surface Mount Terminals | Metal terminals designed for PCB soldering and current conduction |
| Protective Construction | Molded body protects the internal winding from mechanical damage |
| Surface Marking | Standard 4R7 identification or customized traceability marking |
| Packaging | Tape and reel packaging available for automated SMT assembly |
Key Characteristics
- Nominal 4.7 microhenry inductance commonly represented by 4R7 marking
- Compact molded surface mount package
- High current capability through customized conductor design
- Low DC resistance options for reduced conduction loss
- Controlled saturation performance under DC bias
- Shielded structure for reduced magnetic flux leakage
- Stable performance in high frequency switching circuits
- Good mechanical strength and PCB mounting stability
- Suitable for automated placement and reflow soldering
- Low profile versions available according to project requirements
Applications
- High current buck converters
- Boost and buck-boost converters
- Point of load regulators
- Multiphase power supplies
- Industrial automation controllers
- Telecom and networking equipment
- Server and embedded computing systems
- Battery charging equipment
- Automotive auxiliary electronics
- LED driver circuits
- Medical and measurement instruments
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