CAL45VB221K Equivalent & Substitute Parts

Part Overview

The CAL45VB221K is a 220 µH unshielded wirewound inductor manufactured by Taiyo Yuden, rated for 370 mA maximum current with a DC resistance of 2.9 Ohm maximum. This through-hole axial component operates across a temperature range of -25°C to 105°C and is designed for general-purpose fixed inductance applications.

The CAL45VB221K is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing production requirements, maintenance operations, and system redesigns where this inductor is specified in existing designs.

Substiute Parts

CAL45VB221K

Taiyo YudenIn Stock: 1019CAL45VB221K Datasheet

Current PartRFQ

B82144F1224J000

EPCOS - TDK ElectronicsIn Stock: 1114B82144F1224J000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAL45VB221K is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 220 µH (exact match required)
• Mounting type: Through hole axial configuration
• Shielding classification: Unshielded
• Core construction: Wirewound technology

Secondary Compatibility Criteria:

• Current rating must equal or exceed 370 mA
• DC resistance must not exceed 2.9 Ohm maximum
• Operating temperature range must encompass or exceed -25°C to 105°C
• Package type must be axial through-hole

The substitute part B82144F1224J000 satisfies all primary matching criteria and exceeds secondary compatibility requirements through higher current rating (550 mA), lower DC resistance (1.3 Ohm), and extended operating temperature range (-55°C to 125°C).

Parameter Comparison

Engineering Selection Recommendations

B82144F1224J000 as Primary Substitute:

The B82144F1224J000 is an active production component manufactured by EPCOS - TDK Electronics and is suitable as a substitute for the obsolete CAL45VB221K. This substitution is supported by the following factors:

• Electrical Equivalence: Identical 220 µH inductance value with tighter ±5% tolerance provides improved performance consistency compared to the original ±10% specification.
• Current Capacity: The 550 mA current rating exceeds the original 370 mA requirement, providing operational margin in current-limited applications.
• Resistance Performance: DC resistance of 1.3 Ohm maximum is substantially lower than the original 2.9 Ohm specification, reducing power dissipation and heat generation.
• Temperature Coverage: Extended operating range of -55°C to 125°C encompasses and exceeds the original -25°C to 105°C specification.
• Regulatory Compliance: ROHS3 compliance and REACH affected status align with current environmental and regulatory requirements.
• Active Production Status: Availability as an active product ensures long-term supply continuity and consistent manufacturing quality.

Physical Footprint Consideration:

The substitute component has a larger physical footprint (0.256" Dia × 0.362" L versus 0.173" Dia × 0.315" L). PCB layout verification is required to confirm that the increased dimensions do not conflict with existing board space constraints or component placement requirements.

Frequently Asked Questions (FAQ)

Q: Can the B82144F1224J000 be used as a direct replacement for the CAL45VB221K in existing designs?

A: The B82144F1224J000 is electrically compatible with the CAL45VB221K for applications requiring 220 µH inductance at 370 mA or lower current levels. Physical board layout must be verified due to the larger component dimensions. The substitute's superior electrical characteristics (lower DC resistance, tighter tolerance, higher current rating) make it suitable for direct substitution in most applications.

Q: What is the primary difference between these two inductors?

A: Both components provide 220 µH inductance in unshielded axial through-hole packages. The B82144F1224J000 uses a drum core construction with ferrite material, while the CAL45VB221K uses standard wirewound construction. The substitute offers improved electrical performance through lower DC resistance (1.3 Ohm versus 2.9 Ohm) and higher current capacity (550 mA versus 370 mA).

Q: Are there any compliance or certification differences?

A: The B82144F1224J000 carries ROHS3 compliance and REACH affected status certifications. The CAL45VB221K specifications do not include these certifications. If your application requires ROHS3 or REACH compliance, the B82144F1224J000 meets these requirements.

Q: Will the larger size of the B82144F1224J000 cause problems in my circuit board?

A: The B82144F1224J000 has a larger diameter (0.256" versus 0.173") and slightly longer length (0.362" versus 0.315"). You must verify that your PCB layout accommodates these increased dimensions. If space constraints exist, alternative components or board redesign may be necessary.

Q: What is the inductance tolerance difference, and does it matter?

A: The CAL45VB221K has ±10% tolerance, while the B82144F1224J000 has ±5% tolerance. The tighter tolerance of the substitute provides more consistent inductance values across production batches, which can improve circuit performance and reduce tuning requirements in applications sensitive to inductance variation.

Q: Why is the CAL45VB221K obsolete?

A: The CAL45VB221K is classified as obsolete by the manufacturer. This typically indicates that the product has been discontinued and is no longer in active production. Existing inventory may be available from distributors, but long-term supply cannot be guaranteed. The B82144F1224J000 is an active production alternative that ensures continued availability.