ECS-H1AX475R Equivalent & Substitute Parts

Part Overview

The ECS-H1AX475R is a 4.7 µF molded tantalum capacitor rated at 10 V, manufactured by Panasonic Electronic Components in the TEH series. This component is packaged in 1411 (3528 Metric) form factor for surface mount applications. The part is currently obsolete, making identification of equivalent and substitute components essential for ongoing production support, design updates, and inventory management.

Substiute Parts

ECS-H1AX475R

Panasonic Electronic ComponentsIn Stock: 4591ECS-H1AX475R Datasheet

Current PartRFQ

F971A475MBA

KYOCERA AVXIn Stock: 3110F971A475MBA Datasheet

DirectRFQ

TAJB475M010RNJ

KYOCERA AVXIn Stock: 3341TAJB475M010RNJ Datasheet

DirectRFQ

293D475X0010B2TE3

Vishay SpragueIn Stock: 3452293D475X0010B2TE3 Datasheet

SimilarRFQ

293D475X9020A2TE3

Vishay SpragueIn Stock: 10948293D475X9020A2TE3 Datasheet

SimilarRFQ

TAJB475K016RNJ

KYOCERA AVXIn Stock: 6098TAJB475K016RNJ Datasheet

SimilarRFQ

TAJB475M010H

KYOCERA AVXIn Stock: 716TAJB475M010H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECS-H1AX475R is determined by strict alignment of the following electrical and mechanical parameters:

• Capacitance value: 4.7 µF (exact match required)
• Voltage rating: 10 V minimum (equal or higher acceptable)
• Tolerance: ±20% or tighter
• Package / Case: 1411 (3528 Metric) form factor
• Mounting type: Surface Mount
• Operating temperature range: -55°C ~ 125°C minimum
• Physical dimensions: Compatible with 1411 (3528 Metric) footprint

Substitute parts are classified into two categories:

Direct Substitutes: Parts meeting all electrical and mechanical parameters with identical or superior specifications.

Similar Substitutes: Parts meeting core electrical parameters but with variations in voltage rating, tolerance, or package dimensions that may require design verification.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Recommended for Replacement):

TAJB475M010RNJ (KYOCERA AVX) and 293D475X0010B2TE3 (Vishay Sprague) are direct substitutes meeting all electrical and mechanical parameters of the ECS-H1AX475R. Both parts are active products with ROHS3 compliance, ensuring long-term availability and regulatory alignment. TAJB475M010RNJ maintains identical seated height (0.083" / 2.10mm) and offers 4Ω ESR. 293D475X0010B2TE3 provides equivalent performance with 3.4Ω ESR and marginally higher seated height (0.083" / 2.11mm), which is negligible for PCB layout purposes.

F971A475MBA (KYOCERA AVX) is functionally equivalent with identical electrical specifications but features increased seated height (0.091" / 2.30mm) and lower ESR (2.8Ω). This part carries automotive-grade AEC-Q200 certification and high reliability designation, suitable for applications requiring enhanced performance margins.

Similar Substitutes (Design Verification Required):

TAJB475K016RNJ (KYOCERA AVX) provides higher voltage rating (16 V vs. 10 V) and tighter tolerance (±10% vs. ±20%), with lower ESR (4.6Ω). The increased voltage rating provides additional safety margin. Packaging is compatible with 1411 (3528 Metric) footprint.

293D475X9020A2TE3 (Vishay Sprague) differs in package form factor (1206 / 3216 Metric vs. 1411 / 3528 Metric), voltage rating (20 V), and tolerance (±10%). This part is not recommended as a direct replacement due to package incompatibility with the original 1411 footprint.

TAJB475M010H (KYOCERA AVX) matches all electrical specifications but carries RoHS non-compliance status, limiting suitability for new designs requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can TAJB475M010RNJ replace ECS-H1AX475R in existing designs?

A: Yes. TAJB475M010RNJ is a direct substitute with identical capacitance (4.7 µF), voltage rating (10 V), tolerance (±20%), and package form factor (1411 / 3528 Metric). Seated height matches at 0.083" (2.10mm), ensuring PCB compatibility without layout modifications.

Q: What is the difference between F971A475MBA and TAJB475M010RNJ?

A: Both are direct electrical substitutes. F971A475MBA features lower ESR (2.8Ω vs. 4Ω) and AEC-Q200 automotive certification, making it suitable for high-reliability applications. TAJB475M010RNJ offers standard general-purpose performance. F971A475MBA has slightly higher seated height (0.091" vs. 0.083"), which may require clearance verification in space-constrained layouts.

Q: Why is 293D475X9020A2TE3 listed as a similar substitute rather than direct?

A: 293D475X9020A2TE3 uses a different package form factor (1206 / 3216 Metric) compared to the original 1411 (3528 Metric). Additionally, it has higher voltage rating (20 V) and tighter tolerance (±10%). These differences require PCB footprint redesign and are not suitable for direct board-level replacement.

Q: Are all substitute parts RoHS compliant?

A: Most active substitute parts (TAJB475M010RNJ, 293D475X0010B2TE3, TAJB475K016RNJ, F971A475MBA) are ROHS3 compliant. TAJB475M010H is RoHS non-compliant. The original ECS-H1AX475R is also RoHS non-compliant due to its obsolete status.

Q: What does ESR (Equivalent Series Resistance) indicate?

A: ESR represents the internal resistance of the capacitor at operating frequency. Lower ESR values (2.8Ω to 4.6Ω) indicate better high-frequency performance and lower heat generation. The original ECS-H1AX475R does not specify ESR; substitute parts range from 2.8Ω to 5Ω, all acceptable for general-purpose tantalum capacitor applications.

Q: Can TAJB475K016RNJ be used in place of ECS-H1AX475R?

A: TAJB475K016RNJ is electrically compatible with higher voltage rating (16 V) and tighter tolerance (±10%), providing improved performance margins. Package form factor (1411 / 3528 Metric) and seated height (0.083" / 2.10mm) are compatible. Design verification is recommended to confirm that the tighter tolerance and higher voltage rating do not introduce unintended circuit behavior.