CAL45VB561K Equivalent & Substitute Parts

Part Overview

The CAL45VB561K is a 560 µH unshielded wirewound inductor manufactured by Taiyo Yuden, rated for 240 mA continuous current with a maximum DC resistance of 7 Ohm. This component is designed for through-hole axial mounting in applications requiring fixed inductance filtering, energy storage, or signal conditioning circuits.

The CAL45VB561K is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for legacy systems utilizing this inductor.

Substiute Parts

CAL45VB561K

Taiyo YudenIn Stock: 774CAL45VB561K Datasheet

Current PartRFQ

AIAP-01-561K-T

Abracon LLCIn Stock: 1169AIAP-01-561K-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAL45VB561K is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 560 µH (±10% tolerance acceptable)
• Inductance tolerance: ±10%
• Mounting type: Through hole
• Package type: Axial
• Shielding configuration: Unshielded
• Component type: Wirewound

Secondary Compatibility Factors:

• Current rating: Substitute must support minimum 240 mA continuous operation
• DC resistance: Lower DCR values are acceptable; higher values require circuit analysis
• Operating temperature range: Substitute must cover or exceed the application temperature window
• Physical dimensions: Axial package compatibility with PCB layout constraints

The AIAP-01-561K-T from Abracon LLC meets the primary matching criteria with identical inductance, tolerance, mounting type, package configuration, and shielding type. Differences in current rating, DC resistance, and operating temperature range are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution:

The AIAP-01-561K-T is suitable as a direct substitute for the CAL45VB561K in applications where the following conditions are met:

1. Current Requirement: Circuit design operates at or below 210 mA continuous current. If the application requires the full 240 mA rating of the original part, the AIAP-01-561K-T must be evaluated against actual circuit current demands.

2. DC Resistance Impact: The lower DC resistance of the AIAP-01-561K-T (4.7 Ohm vs. 7 Ohm) results in reduced power dissipation and heat generation. This is a favorable characteristic that improves efficiency. Circuit designs that depend on the higher resistance value of the original part require verification.

3. Temperature Operating Range: The AIAP-01-561K-T supports extended low-temperature operation (-40°C vs. -25°C). This provides additional margin for applications in cold environments.

4. Product Availability: The AIAP-01-561K-T is an active product with current manufacturing support, ensuring long-term supply chain availability compared to the obsolete CAL45VB561K.

5. Regulatory Compliance: The AIAP-01-561K-T carries ROHS3 compliance certification, meeting modern environmental and regulatory requirements.

Substitution Constraints:

If the application circuit is designed to operate at or near the 240 mA current rating of the CAL45VB561K, the 210 mA rating of the AIAP-01-561K-T represents a 12.5% reduction in current capacity. Circuit analysis is required to confirm that actual operating current does not exceed the substitute part's rating.

Frequently Asked Questions (FAQ)

Q: Can the AIAP-01-561K-T replace the CAL45VB561K in all applications?

A: The AIAP-01-561K-T is electrically and mechanically compatible with the CAL45VB561K for applications operating at 210 mA or below. Applications requiring the full 240 mA rating must be evaluated individually. The lower DC resistance and extended temperature range of the substitute are generally advantageous.

Q: What is the impact of the lower DC resistance in the AIAP-01-561K-T?

A: Lower DC resistance (4.7 Ohm vs. 7 Ohm) reduces resistive power loss in the inductor coil. This results in lower heat generation and improved circuit efficiency. Applications that depend on the higher resistance value for current limiting or thermal characteristics require circuit analysis.

Q: Are the physical dimensions compatible between these parts?

A: Both parts are axial through-hole inductors. The CAL45VB561K measures 0.173" diameter × 0.315" length (4.40mm × 8.00mm). The AIAP-01-561K-T measures 0.130" diameter × 0.360" length (3.30mm × 9.14mm). While both fit standard through-hole PCB layouts, the different dimensions may affect mechanical fit in space-constrained designs. Verify PCB hole spacing and component clearance before substitution.

Q: Does the AIAP-01-561K-T meet modern regulatory requirements?

A: Yes. The AIAP-01-561K-T is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The CAL45VB561K compliance status is not specified.

Q: What is the difference in inductance frequency test conditions?

A: The CAL45VB561K inductance is tested at 796 kHz, while the AIAP-01-561K-T is tested at 1 kHz. Both parts maintain the specified 560 µH inductance value within ±10% tolerance at their respective test frequencies. The self-resonant frequency of the AIAP-01-561K-T is specified as 1.3 MHz.

Q: Is the AIAP-01-561K-T available in the same packaging format?

A: The CAL45VB561K packaging format is not specified in the available data. The AIAP-01-561K-T is supplied in Tape & Reel (TR) packaging, which is standard for automated assembly processes. Verify packaging requirements for your procurement and assembly workflow.