CAL45VB471K Equivalent & Substitute Parts

Part Overview

The CAL45VB471K is a 470 µH unshielded wirewound inductor manufactured by Taiyo Yuden, rated for 240 mA continuous current with a maximum DC resistance of 6.3 Ohm. This component is designed for through-hole axial mounting in applications requiring fixed inductance filtering, energy storage, or signal conditioning. The part is classified as obsolete, making identification of equivalent substitutes necessary for ongoing design support, repair, and production continuity.

Substiute Parts

CAL45VB471K

Taiyo YudenIn Stock: 1016CAL45VB471K Datasheet

Current PartRFQ

AIAP-01-471K-T

Abracon LLCIn Stock: 9979AIAP-01-471K-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAL45VB471K is determined by strict equivalence across the following critical parameters:

Primary Matching Criteria:

• Inductance value: 470 µH
• Inductance tolerance: ±10%
• Current rating: 240 mA minimum
• Mounting type: Through hole
• Package configuration: Axial

Secondary Compatibility Factors:

• DC resistance within acceptable circuit design limits
• Operating temperature range sufficient for application environment
• Unshielded construction matching original design intent
• Moisture sensitivity level MSL 1 or equivalent

The AIAP-01-471K-T from Abracon LLC meets all primary matching criteria and is classified as an active product, providing long-term availability and supply chain stability compared to the obsolete CAL45VB471K.

Parameter Comparison

Engineering Selection Recommendations

The AIAP-01-471K-T is a direct functional substitute for the CAL45VB471K based on the following engineering factors:

Electrical Equivalence: Both inductors provide identical inductance (470 µH) and current rating (240 mA) with matching tolerance specifications (±10%). The AIAP-01-471K-T exhibits lower DC resistance (3.4 Ohm versus 6.3 Ohm maximum), which reduces resistive losses and heat generation in the circuit, providing improved performance characteristics.

Mechanical Compatibility: Both components utilize through-hole axial mounting with unshielded wirewound construction. Physical dimensions differ slightly (AIAP-01-471K-T: 3.30mm diameter × 9.14mm length versus CAL45VB471K: 4.40mm diameter × 8.00mm length), requiring PCB layout verification for board-level integration.

Product Status and Supply: The AIAP-01-471K-T is classified as active with 9,884 pieces in stock, ensuring long-term availability and supply chain continuity. The CAL45VB471K is obsolete with limited remaining inventory (915 pieces).

Compliance and Certifications: The AIAP-01-471K-T carries RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Both components are classified as EAR99 and share identical HTSUS codes (8504.50.8000).

Temperature Performance: The AIAP-01-471K-T supports an extended operating temperature range (-40°C to 105°C) compared to the CAL45VB471K (-25°C to 105°C), providing broader environmental compatibility.

Frequently Asked Questions (FAQ)

Q: Can the AIAP-01-471K-T directly replace the CAL45VB471K in existing designs?

A: Yes. Both inductors share identical inductance (470 µH), tolerance (±10%), current rating (240 mA), mounting type (through hole), and package configuration (axial). PCB layout modifications may be required due to dimensional differences (diameter and length).

Q: What is the significance of the lower DC resistance in the AIAP-01-471K-T?

A: The AIAP-01-471K-T exhibits 3.4 Ohm maximum DC resistance compared to 6.3 Ohm in the CAL45VB471K. Lower DC resistance reduces I²R losses, decreasing heat dissipation and improving circuit efficiency. This represents an improvement over the original specification.

Q: Are there any compatibility concerns with the different physical dimensions?

A: The AIAP-01-471K-T (3.30mm diameter × 9.14mm length) differs from the CAL45VB471K (4.40mm diameter × 8.00mm length). PCB footprint and component spacing must be verified during design integration. Both maintain through-hole axial mounting compatibility.

Q: Does the AIAP-01-471K-T meet current regulatory standards?

A: Yes. The AIAP-01-471K-T is RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Both components share EAR99 classification and identical HTSUS codes.

Q: What is the difference in operating temperature ranges?

A: The AIAP-01-471K-T supports -40°C to 105°C, while the CAL45VB471K operates from -25°C to 105°C. The substitute provides extended low-temperature performance, suitable for broader environmental applications.

Q: Why is the CAL45VB471K classified as obsolete?

A: The CAL45VB471K is no longer in active production by Taiyo Yuden. The AIAP-01-471K-T from Abracon LLC is an active product with confirmed long-term availability, making it the recommended choice for new designs and ongoing production support.

Q: How do the inductance test frequencies differ between these parts?

A: The CAL45VB471K inductance is tested at 796 kHz, while the AIAP-01-471K-T is tested at 1 kHz. Both measurements confirm the 470 µH specification within ±10% tolerance. The AIAP-01-471K-T also specifies a self-resonant frequency of 1.4 MHz.