LB2012T100MR Equivalent & Substitute Parts

Part Overview

The LB2012T100MR is a 10 µH unshielded wirewound inductor manufactured by Taiyo Yuden, rated for 120 mA continuous current with 500mOhm DC resistance in a 0805 (2012 Metric) surface mount package. This component is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and legacy system repairs where this inductor specification remains required.

Substiute Parts

LB2012T100MR

Taiyo YudenIn Stock: 8256LB2012T100MR Datasheet

Current PartRFQ

LSQBA201212T100MR

Taiyo YudenIn Stock: 859LSQBA201212T100MR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LB2012T100MR is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Inductance value: 10 µH (±20% tolerance)
• Current rating: 120 mA minimum
• DC resistance: 500mOhm
• Self-resonant frequency: 32 MHz
• Inductance test frequency: 2.52 MHz

Mechanical & Package Parameters:

• Package type: 0805 (2012 Metric) surface mount
• Physical dimensions: 0.079" L × 0.049" W (2.00mm × 1.25mm)
• Maximum seated height: 0.057" (1.45mm)
• Mounting: Surface mount, tape & reel compatible

Compliance & Environmental Parameters:

• RoHS3 compliance required
• Moisture sensitivity level: 1 (Unlimited)
• Operating temperature range: minimum -25°C to 105°C

The LSQBA201212T100MR meets all specified electrical, mechanical, and compliance requirements and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The LSQBA201212T100MR is the qualified substitute for the LB2012T100MR based on the following engineering criteria:

Electrical Equivalence: All critical electrical parameters match exactly: 10 µH inductance, 120 mA current rating, 500mOhm DC resistance, 32 MHz self-resonant frequency, and 2.52 MHz test frequency. The ±20% tolerance specification is identical.

Mechanical Compatibility: Both parts share identical package dimensions (0805/2012 Metric), physical footprint (0.079" × 0.049"), and maximum seated height (0.057"). Surface mount assembly processes and PCB layouts require no modification.

Compliance & Environmental: The LSQBA201212T100MR maintains ROHS3 compliance and MSL 1 (Unlimited) rating. The operating temperature range of -40°C to 105°C exceeds the original -25°C to 105°C specification, providing extended low-temperature performance.

Product Status Advantage: The LSQBA201212T100MR carries "Active" product status, ensuring long-term availability and supply chain continuity compared to the "Not For New Designs" classification of the LB2012T100MR.

Frequently Asked Questions (FAQ)

Q: Can the LSQBA201212T100MR be used as a direct replacement for the LB2012T100MR without circuit modification?

A: Yes. The LSQBA201212T100MR is electrically and mechanically equivalent. All electrical parameters (inductance, current rating, DC resistance, resonant frequency) are identical. Physical dimensions and package type match exactly, requiring no PCB layout changes or assembly process adjustments.

Q: What is the difference between the LB series and LSQB series inductors?

A: The LB2012T100MR belongs to the LB series (Not For New Designs status), while the LSQBA201212T100MR belongs to the LSQB series (Active status). Both are manufactured by Taiyo Yuden and share identical electrical and mechanical specifications for this 10 µH, 120 mA inductor. The LSQB series represents the current production line.

Q: Are there any temperature range differences between these parts?

A: The LB2012T100MR operates from -25°C to 105°C, while the LSQBA201212T100MR operates from -40°C to 105°C. The substitute part provides extended low-temperature capability, making it suitable for applications requiring operation below -25°C.

Q: Do both parts have the same moisture sensitivity level?

A: Yes. Both the LB2012T100MR and LSQBA201212T100MR are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Is the LSQBA201212T100MR available in the same packaging format?

A: Yes. Both parts are supplied in Tape & Reel (TR) packaging in the 0805 (2012 Metric) surface mount format, ensuring compatibility with standard pick-and-place assembly equipment and reel handling systems.

Q: What is the DC resistance specification, and why is it important?

A: Both parts have 500mOhm DC resistance. This parameter is critical for power loss calculations in inductor applications. The identical DCR ensures equivalent thermal performance and power dissipation characteristics in the circuit.

Q: Are both parts RoHS compliant?

A: Yes. Both the LB2012T100MR and LSQBA201212T100MR are ROHS3 compliant, meeting current environmental and hazardous substance restrictions for electronic components.