CAL45VB102K Equivalent & Substitute Parts

Part Overview

The CAL45VB102K is a 1 mH unshielded wirewound inductor manufactured by Taiyo Yuden, designed for through-hole axial mounting applications. This component is rated for 170 mA continuous current with a maximum DC resistance of 13.2 Ohm and operates across a temperature range of -25°C to 105°C. The part is classified as obsolete, making identification of suitable equivalent components necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

CAL45VB102K

Taiyo YudenIn Stock: 951CAL45VB102K Datasheet

Current PartRFQ

B82144F1105J000

EPCOS - TDK ElectronicsIn Stock: 14181B82144F1105J000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CAL45VB102K is determined by the following critical parameters:

Inductance Value: Both the main part and substitute maintain 1 mH inductance, ensuring functional equivalence in circuit operation.

Mounting Configuration: Both components utilize through-hole axial mounting, permitting direct board-level installation without mechanical redesign.

Package Type: Axial package compatibility allows physical interchangeability on existing PCB layouts.

Shielding Classification: Both parts are unshielded inductors, maintaining electromagnetic interference characteristics consistent with the original design.

Current Handling Capability: The substitute part (B82144F1105J000) is rated for 280 mA, which exceeds the original 170 mA requirement, providing operational margin within the same circuit topology.

DC Resistance: The substitute exhibits lower DCR (4.2 Ohm Max versus 13.2 Ohm Max), resulting in reduced power dissipation and improved efficiency in current-carrying applications.

Product Status: The substitute is classified as active, ensuring continued availability and manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The B82144F1105J000 serves as a direct functional substitute for the obsolete CAL45VB102K based on the following engineering criteria:

Inductance Equivalence: Both components deliver 1 mH inductance, maintaining circuit performance specifications without modification to design calculations or signal path behavior.

Current Capacity: The substitute's 280 mA rating accommodates the original 170 mA requirement with operational headroom, eliminating thermal stress and extending component service life in the application.

Resistance Profile: The substitute's 4.2 Ohm DCR represents a significant improvement over the original 13.2 Ohm specification, reducing I²R losses and heat generation in power-sensitive applications.

Temperature Operating Range: The substitute extends the operating window to -55°C ~ 125°C, providing enhanced environmental tolerance compared to the original -25°C ~ 105°C range.

Compliance Status: The substitute is ROHS3 compliant and REACH affected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Product Availability: Active manufacturing status ensures long-term supply chain stability and eliminates obsolescence risk associated with the original part.

Physical Compatibility: Axial through-hole configuration permits direct substitution on existing PCB layouts without mechanical redesign or board rework.

Frequently Asked Questions (FAQ)

Q: Can the B82144F1105J000 replace the CAL45VB102K in existing designs without circuit modification?

A: Yes. Both components maintain 1 mH inductance and axial through-hole mounting configuration. The substitute's superior current rating (280 mA versus 170 mA) and lower DC resistance (4.2 Ohm versus 13.2 Ohm) provide enhanced performance margins without requiring design changes.

Q: What is the significance of the lower DC resistance in the substitute part?

A: Lower DC resistance reduces power dissipation (I²R losses) during current flow. For a 170 mA application, the substitute dissipates approximately 0.12 W compared to 0.38 W in the original part, resulting in reduced thermal load and improved efficiency.

Q: Are there physical dimension differences between these components?

A: Yes. The CAL45VB102K measures 0.173" Dia x 0.315" L (4.40mm x 8.00mm), while the B82144F1105J000 measures 0.256" Dia x 0.362" L (6.50mm x 9.20mm). Both maintain axial through-hole configuration and fit standard PCB hole spacing, though the substitute is physically larger.

Q: Does the substitute meet modern regulatory compliance standards?

A: Yes. The B82144F1105J000 is ROHS3 compliant and REACH affected, meeting current environmental and hazardous substance regulations. The original CAL45VB102K compliance status is not specified.

Q: What is the inductance tolerance difference between these parts?

A: The CAL45VB102K carries ±10% tolerance, while the B82144F1105J000 carries ±5% tolerance. The substitute provides tighter inductance control, beneficial for applications requiring precise frequency response or impedance matching.

Q: Is the substitute suitable for high-frequency applications?

A: The B82144F1105J000 specifies a self-resonant frequency of 2.2 MHz and Q factor of 60 @ 252 kHz. These parameters indicate suitability for applications operating below the self-resonant frequency. The original part does not specify these parameters.

Q: What is the extended temperature range benefit of the substitute?

A: The B82144F1105J000 operates from -55°C to 125°C compared to the original -25°C to 105°C range. This extended range accommodates industrial and automotive applications requiring broader environmental tolerance.