CAL45KB101K Equivalent & Substitute Parts

Part Overview

The CAL45KB101K is a fixed through-hole inductor manufactured by Taiyo Yuden. This component is classified as obsolete and is no longer recommended for new designs. The part carries a moisture sensitivity level of 1 (unlimited), indicating minimal environmental constraints during storage and handling.

Due to its obsolete status, sourcing replacement components for existing applications or legacy system maintenance requires identification of functionally equivalent alternatives. Two substitute parts have been identified that provide comparable electrical and mechanical characteristics suitable for applications previously utilizing the CAL45KB101K.

Substiute Parts

CAL45KB101K

Taiyo YudenIn Stock: 1155CAL45KB101K Datasheet

Current PartRFQ

NRS6045T101MMGK

Taiyo YudenIn Stock: 6208NRS6045T101MMGK Datasheet

SimilarRFQ

B82144F2104J000

EPCOS - TDK ElectronicsIn Stock: 5944B82144F2104J000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CAL45KB101K have been identified based on the following substitution criteria:

Primary Substitution Parameters:

• Inductance value: 100 µH
• Component category: Fixed inductor
• Core type: Ferrite-based construction
• Shielding configuration: Applicable to application requirements
• Current handling capability: Minimum 750 mA
• DC resistance: Below 610 mOhm maximum
• Operating temperature range: Minimum -25°C to 125°C coverage
• Moisture sensitivity: Level 1 (unlimited)
• RoHS3 compliance status

The two identified substitutes represent different mounting and shielding approaches:

1. NRS6045T101MMGK – Surface mount shielded configuration
2. B82144F2104J000 – Through-hole unshielded configuration

Parameter Comparison

Engineering Selection Recommendations

For Through-Hole Applications:

The B82144F2104J000 is the primary substitute for through-hole mounting requirements. This component is manufactured by EPCOS - TDK Electronics and maintains active product status, ensuring continued availability and support. The part provides superior electrical characteristics including lower DC resistance (460 mOhm maximum versus 605.8 mOhm), higher current rating (1.3 A), and extended low-temperature operating range (-55°C minimum). RoHS3 compliance and EAR99 export classification align with modern regulatory requirements.

For Surface-Mount Applications:

The NRS6045T101MMGK serves applications requiring surface-mount configuration with shielded construction. Manufactured by Taiyo Yuden, this component maintains the same manufacturer lineage as the obsolete CAL45KB101K. The shielded drum core design provides electromagnetic interference mitigation. However, this part carries "Not For New Designs" status, indicating limited future support availability.

Compliance Considerations:

Both substitute parts achieve RoHS3 compliance and maintain moisture sensitivity level 1 (unlimited), eliminating environmental handling constraints. The B82144F2104J000 carries REACH Affected status, requiring verification against specific application regulatory requirements. The NRS6045T101MMGK maintains REACH Unaffected status.

Frequently Asked Questions (FAQ)

Q: Can the NRS6045T101MMGK directly replace the CAL45KB101K in existing through-hole designs?

A: No. The NRS6045T101MMGK is a surface-mount component with 0.236" x 0.236" footprint and 0.177" maximum seated height. The CAL45KB101K is a through-hole inductor. Direct PCB substitution requires circuit board redesign. The B82144F2104J000 is the appropriate through-hole alternative.

Q: What is the significance of the "Not For New Designs" status on the NRS6045T101MMGK?

A: This designation indicates the manufacturer does not recommend this part for new product development. While the component remains available in current inventory (6197 pieces), long-term sourcing and manufacturer support cannot be guaranteed. For new designs, the B82144F2104J000 (Active status) is the preferred selection.

Q: How do the DC resistance values affect circuit performance?

A: The B82144F2104J000 provides 460 mOhm maximum DC resistance compared to 605.8 mOhm maximum for the NRS6045T101MMGK. Lower DC resistance reduces power dissipation and heat generation in the inductor. Selection depends on circuit thermal budget and efficiency requirements.

Q: Are there packaging differences that affect component handling?

A: Yes. The NRS6045T101MMGK is supplied in Tape & Reel (TR) packaging for automated assembly. The B82144F2104J000 is supplied in Cut Tape (CT) packaging. Both maintain moisture sensitivity level 1, eliminating special storage requirements. Packaging selection depends on assembly process capabilities.

Q: What is the difference between shielded and unshielded configurations?

A: The NRS6045T101MMGK features shielded construction, reducing electromagnetic field radiation and susceptibility to external interference. The B82144F2104J000 is unshielded. Shielded inductors are preferred in noise-sensitive applications; unshielded inductors occupy less board space and cost less. Selection depends on electromagnetic compatibility requirements.

Q: Can the B82144F2104J000 operate at lower temperatures than the NRS6045T101MMGK?

A: Yes. The B82144F2104J000 operates from -55°C minimum, while the NRS6045T101MMGK operates from -25°C minimum. For applications requiring extended low-temperature operation, the B82144F2104J000 provides superior performance.

Q: What does the ±5% tolerance on the B82144F2104J000 mean compared to ±20% on the NRS6045T101MMGK?

A: Tolerance specifies the allowable deviation from the nominal 100 µH inductance value. The B82144F2104J000 maintains inductance within ±5% (95-105 µH range), while the NRS6045T101MMGK allows ±20% deviation (80-120 µH range). Tighter tolerance on the B82144F2104J000 provides better circuit predictability and performance consistency.