Taiyo Yuden BRL2012T101M Fixed Inductor: Comprehensive Technical Guide

The Taiyo Yuden BRL2012T101M represents the pinnacle of fixed inductor technology, offering engineers exceptional performance in a compact 0805 package. This in-depth guide explores every aspect of this critical electronic component, helping you understand why it's become a preferred choice for circuit designers worldwide.

Detailed Product Overview

Manufactured by Taiyo Yuden, a Japanese leader in electronic components since 1950, the BRL2012T101M belongs to their high-reliability BRL series of wirewound inductors. With its drum core ferrite construction, this component delivers stable inductance values across various operating conditions, making it particularly valuable for:

• Power supply input/output filtering
• DC-DC converter circuits
• RF signal processing
• EMI suppression applications
• IoT and wearable device power management

Technical Specifications Deep Dive

Core Construction and Materials

The BRL2012T101M features an advanced ferrite drum core with precision wirewinding that provides several advantages:

• High magnetic permeability for efficient energy storage
• Excellent temperature stability (-40 C to +105 C)
• Low core loss at high frequencies
• Minimal electromagnetic interference

Electrical Characteristics

Parameter	Value	Significance
Inductance	100 H 20%	Ideal for filtering in 500kHz-2MHz range
DC Resistance	10.01 max	Optimized for low-current applications
Rated Current	85mA	Suitable for most low-power designs
Self-Resonant Frequency	6MHz	Effective for suppressing high-frequency noise

Physical Dimensions and Mounting

The 0805 (2012 metric) package measures just 2.0mm 1.25mm 1.0mm, offering significant advantages for modern electronics:

• Enables high-density PCB layouts
• Reduces overall product footprint
• Compatible with automated SMT assembly
• Weighs only 0.008g (typical)

Performance Comparison

When benchmarked against similar inductors in its class, the BRL2012T101M demonstrates:

• 15% better current handling than comparable parts
• Lower DCR than many competing 100 H inductors
• Superior temperature stability
• Better Q factor at operating frequencies

Application-Specific Design Considerations

Power Supply Filtering

For power supply applications, we recommend:

• Pairing with 10-100 F ceramic capacitors
• Maintaining at least 0.5mm clearance from heat sources
• Using in -filter configurations for best results

DC-DC Converters

When used in converter circuits:

• Optimal for buck converters under 100mA
• Works well with switching frequencies up to 2MHz
• Requires proper PCB thermal relief patterns

Reliability and Environmental Ratings

The BRL2012T101M meets stringent quality standards:

• RoHS compliant
• Halogen-free construction
• 100% automated optical inspection
• MSL Level 1 moisture sensitivity

Purchasing and Availability

Available through authorized distributors worldwide, the BRL2012T101M comes in tape-and-reel packaging suitable for production environments. Typical lead times are 8-12 weeks for large quantities.

Conclusion

With its combination of compact size, reliable performance, and Taiyo Yuden's quality assurance, the BRL2012T101M stands as an excellent choice for designers needing a 100 H inductor for space-constrained applications. Its balanced characteristics make it particularly valuable in portable electronics, medical devices, and industrial control systems where consistent performance is critical.

For engineers looking to optimize their designs further, we recommend evaluating the entire BRL series from Taiyo Yuden, which offers inductance values from 1 H to 1000 H in similar form factors.