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SLF10145T-470M1R4

Manufacturer: TDK

LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs

Partnumber Manufacturer Quantity Availability
SLF10145T-470M1R4,SLF10145T470M1R4 TDK 3900 In Stock

Description and Introduction

LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs The SLF10145T-470M1R4 is a power inductor manufactured by TDK. Here are its specifications, descriptions, and features:  

### **Specifications:**  
- **Inductance (L):** 47 µH (±20%)  
- **DC Resistance (DCR):** 1.4 mΩ (max)  
- **Saturation Current (Isat):** 10.0 A  
- **Thermal Current (Irms):** 14.5 A  
- **Operating Temperature Range:** -40°C to +125°C  
- **Core Material:** Metal alloy  
- **Shielding:** Shielded  
- **Package Type:** Surface Mount (SMD)  
- **Dimensions (L x W x H):** 10.2 mm x 10.0 mm x 4.5 mm  

### **Descriptions:**  
- Designed for high-current applications in power supplies, DC-DC converters, and voltage regulator modules (VRMs).  
- Features low DC resistance (DCR) for reduced power loss.  
- Shielded construction minimizes electromagnetic interference (EMI).  

### **Features:**  
- High saturation current capability.  
- Excellent thermal performance.  
- RoHS compliant.  
- Suitable for automotive and industrial applications.  

For more details, refer to the official TDK datasheet.

Application Scenarios & Design Considerations

LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs

Alternative Part Number

  • CDRH127-470MC --: Similar 47uH shielded power inductor with comparable current rating and low DC resistance, suitable drop-in for most SLF10145T applications.
  • SRR1260-470M --: 47uH shielded power inductor in a similar 12x12mm footprint with adequate saturation current, widely available and cost effective.
  • LQH55D470M26L --: 47uH power inductor with comparable inductance tolerance and current handling, though slightly different size requiring layout check.
  • CDRH127/LD-470MC --: Shielded power inductor with similar 47uH inductance and comparable current rating, from a different series and manufacturer, suitable as a drop-in replacement.
  • LQH55DN470M03L --: 47uH shielded inductor with comparable dimensions and current handling, different series prefix, usable as an alternative with layout verification.

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