LHLZ06TB221KB Equivalent & Substitute Parts

Part Overview

The LHLZ06TB221KB is a 220 µH unshielded through-hole inductor manufactured by Taiyo Yuden, designed for applications requiring fixed inductance with a 360 mA current rating and 2Ohm maximum DC resistance. This component features a ferrite core in a radial, vertical cylinder package and operates across a temperature range of -25°C to 105°C.

The LHLZ06TB221KB is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for legacy systems or redesigned applications.

Substiute Parts

LHLZ06TB221KB

Taiyo YudenIn Stock: 1017LHLZ06TB221KB Datasheet

Current PartRFQ

RLB0914-221KL

Bourns Inc.In Stock: 7755RLB0914-221KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LHLZ06TB221KB is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 220 µH with ±10% tolerance
• Inductance frequency test point: 796 kHz
• Core material: Ferrite
• Shielding configuration: Unshielded
• Mounting type: Through Hole
• Package configuration: Radial, Vertical Cylinder
• RoHS compliance: ROHS3 Compliant

Secondary Compatibility Factors:

• Current rating must equal or exceed 360 mA
• DC resistance must not exceed 2Ohm maximum
• Operating temperature range must encompass or exceed -25°C to 105°C
• Self-resonant frequency characteristics

The RLB0914-221KL from Bourns Inc. satisfies all primary matching criteria and provides enhanced performance characteristics in secondary parameters, making it a direct functional substitute for the obsolete LHLZ06TB221KB.

Parameter Comparison

Engineering Selection Recommendations

The RLB0914-221KL from Bourns Inc. is the qualified substitute for the obsolete LHLZ06TB221KB. Selection is based on the following engineering factors:

Compliance and Regulatory Status: Both components maintain ROHS3 compliance, ensuring compatibility with current environmental and regulatory requirements. The RLB0914-221KL carries active product status with established supply chain availability, eliminating obsolescence risk associated with the LHLZ06TB221KB.

Electrical Performance: The RLB0914-221KL delivers identical inductance (220 µH) and tolerance (±10%) at the specified test frequency of 796 kHz. The substitute provides superior current handling capacity (800 mA versus 360 mA) and reduced DC resistance (0.6Ohm versus 2Ohm maximum), resulting in lower power dissipation and improved thermal performance in the application circuit.

Thermal and Environmental Characteristics: The RLB0914-221KL extends the lower operating temperature limit to -40°C, providing broader environmental coverage compared to the original -25°C specification. Both components support the upper temperature limit of 105°C.

Physical and Mechanical Compatibility: Both components utilize identical mounting technology (through-hole) and package configuration (radial, vertical cylinder). Dimensional differences are minor: the RLB0914-221KL exhibits a slightly larger diameter (8.70mm versus 7.80mm) and height (13.00mm versus 11.00mm). PCB layout verification is required to confirm mechanical fit within existing footprints.

Product Availability: The RLB0914-221KL maintains active production status with substantial inventory availability (7,745 pieces in stock), ensuring reliable long-term supply compared to the obsolete LHLZ06TB221KB.

Frequently Asked Questions (FAQ)

Q: Can the RLB0914-221KL directly replace the LHLZ06TB221KB in existing designs?

A: The RLB0914-221KL provides functional equivalence for the LHLZ06TB221KB based on matching inductance value, tolerance, core material, shielding configuration, and mounting type. Physical dimensions differ slightly; PCB layout verification is required to confirm mechanical compatibility with existing footprints.

Q: What are the key differences between these two inductors?

A: The primary differences are: (1) Current rating—RLB0914-221KL supports 800 mA versus 360 mA for the LHLZ06TB221KB; (2) DC resistance—RLB0914-221KL provides 0.6Ohm maximum versus 2Ohm for the original; (3) Operating temperature range—RLB0914-221KL extends to -40°C versus -25°C minimum; (4) Physical size—RLB0914-221KL is slightly larger; (5) Product status—RLB0914-221KL is active production versus obsolete for LHLZ06TB221KB.

Q: Are there any frequency-dependent performance differences?

A: Both inductors are tested at 796 kHz. The LHLZ06TB221KB exhibits a Q factor of 30 at this frequency with a self-resonant frequency of 3.8 MHz. The RLB0914-221KL shows a Q factor of 20 at 796 kHz with a self-resonant frequency of 2.4 MHz. Applications sensitive to high-frequency performance or Q factor specifications require circuit analysis to confirm acceptable performance with the substitute.

Q: What packaging and inventory considerations apply?

A: The LHLZ06TB221KB is supplied in tape and reel packaging with 940 pieces currently in stock but classified as obsolete with no ongoing production. The RLB0914-221KL is supplied in bulk packaging with 7,745 pieces in stock and active production status, ensuring sustained availability for future requirements.

Q: Are both components RoHS compliant?

A: Yes, both the LHLZ06TB221KB and RLB0914-221KL maintain ROHS3 compliance, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Q: What thermal performance differences exist between these inductors?

A: The RLB0914-221KL provides significantly lower DC resistance (0.6Ohm maximum versus 2Ohm), resulting in reduced resistive power dissipation at equivalent current levels. This characteristic improves thermal performance and reduces heat generation in the application circuit. The RLB0914-221KL also supports a lower minimum operating temperature (-40°C versus -25°C).