N08DPB471K Equivalent & Substitute Parts

Part Overview

The N08DPB471K is a 470 µH unshielded surface mount inductor manufactured by Taiyo Yuden, rated for 410 mA with a maximum DC resistance of 2.1Ohm. This component operates across a temperature range of -25°C to 85°C and features a nonstandard package with dimensions of 10.60mm x 9.00mm x 5.00mm (max height). The part is classified as obsolete, necessitating identification of equivalent alternatives for ongoing design requirements and procurement needs.

Substiute Parts

N08DPB471K

Taiyo YudenIn Stock: 1184N08DPB471K Datasheet

Current PartRFQ

B82464A4474K000

EPCOS - TDK ElectronicsIn Stock: 2790B82464A4474K000 Datasheet

SimilarRFQ

SRR1205-471KL

Bourns Inc.In Stock: 1176SRR1205-471KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the N08DPB471K are identified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Inductance value: 470 µH ±10%
• Surface mount packaging configuration
• Current rating capability: minimum 410 mA
• DC resistance within acceptable operating limits
• Moisture sensitivity level: 1 (Unlimited)
• REACH and ECCN compliance alignment

Substitute Parts Identified:

1. B82464A4474K000 (EPCOS - TDK Electronics): Meets inductance specification with enhanced current rating of 500 mA and lower DCR of 1.27Ohm. Features active product status and AEC-Q200 automotive qualification. Extended operating temperature range of -55°C to 150°C. Drum core, wirewound construction with ferrite core material.

2. SRR1205-471KL (Bourns Inc.): Meets inductance specification with current rating of 450 mA and DCR of 1.98Ohm. Features active product status and shielded construction. Operating temperature range of -40°C to 125°C. Drum core, wirewound construction with ferrite core material.

Parameter Comparison

Engineering Selection Recommendations

B82464A4474K000 Selection Criteria:

This substitute is suitable for applications where extended temperature performance and higher current capacity are beneficial. The part carries active product status with AEC-Q200 automotive qualification, ensuring long-term availability and supply chain stability. ROHS3 compliance and lower DC resistance (1.27Ohm) reduce power dissipation compared to the original part. The 500 mA current rating provides margin above the 410 mA requirement of the N08DPB471K.

SRR1205-471KL Selection Criteria:

This substitute is appropriate for applications requiring shielded construction to minimize electromagnetic interference. The part maintains active product status with ROHS3 compliance. The 450 mA current rating exceeds the 410 mA requirement with adequate margin. DC resistance of 1.98Ohm is comparable to the original specification. Shielded construction differentiates this option for noise-sensitive circuit topologies.

Compliance Alignment:

Both substitute parts maintain REACH Unaffected and EAR99 ECCN classifications consistent with the original part. Both feature MSL 1 (Unlimited) moisture sensitivity, ensuring compatibility with standard storage and handling procedures.

Frequently Asked Questions (FAQ)

Q: Can B82464A4474K000 directly replace N08DPB471K in all applications?

A: B82464A4474K000 meets the core electrical specifications: 470 µH inductance, current rating of 500 mA (exceeds 410 mA requirement), and surface mount configuration. The lower DCR of 1.27Ohm versus 2.1Ohm reduces power dissipation. Physical dimensions differ slightly (10.40mm x 10.40mm x 4.80mm versus 10.60mm x 9.00mm x 5.00mm), requiring PCB layout verification. Extended temperature range (-55°C to 150°C) provides broader operational capability.

Q: What is the primary difference between the two substitute parts?

A: The primary difference is shielding configuration. B82464A4474K000 is unshielded, matching the original part's shielding characteristic. SRR1205-471KL is shielded, providing electromagnetic interference containment. SRR1205-471KL is larger (12.70mm x 12.70mm x 5.50mm) compared to both the original and B82464A4474K000. Current ratings differ: B82464A4474K000 at 500 mA versus SRR1205-471KL at 450 mA.

Q: Are there temperature range limitations when substituting?

A: The original N08DPB471K operates from -25°C to 85°C. B82464A4474K000 extends this to -55°C to 150°C, and SRR1205-471KL to -40°C to 125°C. Both substitutes support the original operating range and exceed it. Application-specific temperature requirements must be evaluated against the substitute part's rated range.

Q: How do DC resistance differences affect circuit performance?

A: The original part specifies 2.1Ohm maximum DCR. B82464A4474K000 provides 1.27Ohm maximum, reducing resistive losses by approximately 40%. SRR1205-471KL provides 1.98Ohm maximum, reducing losses by approximately 6%. Lower DCR reduces heat generation and improves efficiency in current-carrying applications. Circuit thermal analysis should account for these differences.

Q: What packaging considerations apply to these substitutes?

A: All three parts use surface mount technology with nonstandard packages. Physical dimensions vary: N08DPB471K is 10.60mm x 9.00mm, B82464A4474K000 is 10.40mm x 10.40mm, and SRR1205-471KL is 12.70mm x 12.70mm. PCB footprint and clearance requirements must be verified before substitution. Both substitutes are supplied in Tape & Reel (TR) packaging, suitable for automated assembly.

Q: Do the substitute parts maintain compliance with the original specifications?

A: Both substitutes maintain REACH Unaffected and EAR99 ECCN classifications. Both feature MSL 1 (Unlimited) moisture sensitivity, consistent with the original part. B82464A4474K000 and SRR1205-471KL are ROHS3 compliant, exceeding the original part's compliance profile. Regulatory and environmental requirements are satisfied by both alternatives.