CB2012T470K Equivalent & Substitute Parts

Part Overview

The CB2012T470K is a 47 µH unshielded drum core wirewound inductor manufactured by Taiyo Yuden, designed for surface mount applications in the 0805 (2012 Metric) package. This component is rated for 190 mA continuous current with a maximum DC resistance of 4.86 Ohm and operates across the temperature range of -40°C to 105°C.

The CB2012T470K carries a product status of "Not For New Designs," indicating that Taiyo Yuden has transitioned this model out of active production. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support existing inventory management for applications currently utilizing this inductor.

Substiute Parts

CB2012T470K

Taiyo YudenIn Stock: 12542CB2012T470K Datasheet

Current PartRFQ

LSQNA201212T470K

Taiyo YudenIn Stock: 1061LSQNA201212T470K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CB2012T470K is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Parameters:

• Inductance value: 47 µH
• Inductance tolerance: ±10%
• Current rating: 190 mA minimum
• Current saturation (Isat): 90 mA minimum
• DC resistance: 4.86 Ohm maximum
• Self-resonant frequency: 11 MHz minimum
• Operating temperature range: -40°C to 105°C minimum

Mechanical Parameters:

• Package / Case: 0805 (2012 Metric)
• Mounting type: Surface Mount
• Core type: Ferrite, Wirewound
• Shielding: Unshielded

Compliance Parameters:

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must match all electrical specifications within stated tolerances, maintain identical package dimensions and mounting characteristics, and satisfy all regulatory compliance requirements. Series designation and product status may differ provided the substitute part is available and meets all technical requirements.

Parameter Comparison

Engineering Selection Recommendations

The LSQNA201212T470K is a direct electrical and mechanical equivalent to the CB2012T470K. Both components are manufactured by Taiyo Yuden and satisfy identical specifications across all critical parameters: inductance value, current ratings, DC resistance, frequency characteristics, package dimensions, and operating temperature range.

The primary distinction between these parts is product status. The CB2012T470K is designated "Not For New Designs," while the LSQNA201212T470K carries an "Active" product status. This indicates that the LSQNA201212T470K represents the current production equivalent within Taiyo Yuden's inductor portfolio.

Both components maintain full compliance with ROHS3 regulations and carry identical moisture sensitivity ratings (MSL 1 - Unlimited), ensuring equivalent environmental and regulatory performance in manufacturing and field deployment.

For applications currently specified with the CB2012T470K, the LSQNA201212T470K provides direct substitution without circuit redesign or performance compromise. The active product status of the LSQNA201212T470K ensures ongoing availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the LSQNA201212T470K be used as a direct replacement for the CB2012T470K?

A: Yes. The LSQNA201212T470K is a direct substitute. Both components share identical electrical specifications (47 µH inductance, 190 mA current rating, 4.86 Ohm maximum DC resistance), mechanical dimensions (0805 package, 2.00mm x 1.25mm), and compliance certifications (ROHS3, MSL 1). No circuit modifications are required.

Q: Why is the CB2012T470K marked "Not For New Designs"?

A: The "Not For New Designs" designation indicates that Taiyo Yuden has transitioned this part number out of active production. The LSQNA201212T470K is the current production equivalent. Existing designs using the CB2012T470K can continue operation; new designs should specify the LSQNA201212T470K.

Q: Are there any differences in package dimensions between these parts?

A: No. Both the CB2012T470K and LSQNA201212T470K use the 0805 (2012 Metric) package with identical dimensions: 0.079" length x 0.049" width (2.00mm x 1.25mm) and maximum seated height of 0.057" (1.45mm). PCB footprints and assembly processes are identical.

Q: Do these inductors have the same DC resistance?

A: Yes. Both components specify a maximum DC resistance of 4.86 Ohm, ensuring equivalent power dissipation and thermal performance in circuit applications.

Q: What is the saturation current for these inductors?

A: Both the CB2012T470K and LSQNA201212T470K have a saturation current (Isat) of 90 mA. This parameter defines the current level at which inductance begins to degrade due to core saturation.

Q: Are moisture sensitivity requirements the same?

A: Yes. Both components carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special desiccant or humidity control requirements.

Q: Can these parts be used in high-frequency applications?

A: Both inductors have a self-resonant frequency of 11 MHz and are tested at 2.52 MHz. Application suitability depends on specific circuit frequency requirements and impedance characteristics at the operating frequency.

Q: Are both parts RoHS compliant?

A: Yes. Both the CB2012T470K and LSQNA201212T470K are ROHS3 Compliant, meeting all current lead-free and hazardous substance restrictions for electronic components.