TMK107BJ473MA-T Equivalent & Substitute Parts

Part Overview

The TMK107BJ473MA-T is a 0.047 µF ceramic capacitor manufactured by Taiyo Yuden, rated for 25V with X5R temperature coefficient in 0603 (1608 Metric) surface mount package. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this capacitor is currently deployed.

Substiute Parts

TMK107BJ473MA-T

Taiyo YudenIn Stock: 1070TMK107BJ473MA-T Datasheet

Current PartRFQ

KGM15AR51E473KT

KYOCERA AVXIn Stock: 7551KGM15AR51E473KT Datasheet

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KGM15AR51H473KT

KYOCERA AVXIn Stock: 808KGM15AR51H473KT Datasheet

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KGM15AR51H473MT

KYOCERA AVXIn Stock: 879KGM15AR51H473MT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMK107BJ473MA-T is determined by the following critical parameters:

Primary Substitution Criteria:

• Capacitance value: 0.047 µF (exact match required)
• Package / Case: 0603 (1608 Metric) (exact match required)
• Temperature Coefficient: X5R (exact match required)
• Operating Temperature Range: -55°C ~ 85°C (minimum requirement)
• Mounting Type: Surface Mount, MLCC (exact match required)

Secondary Substitution Criteria:

• Voltage Rating: 25V minimum (equal or higher voltage ratings are acceptable)
• Tolerance: ±20% or tighter (±10% tolerance is acceptable as upgrade)
• RoHS Compliance: ROHS3 Compliant (required)
• Moisture Sensitivity Level: 1 (Unlimited) (required)

The substitute parts listed below meet all primary criteria and maintain compatibility with the original design specifications. Voltage rating upgrades (from 25V to 50V) provide enhanced reliability margins without affecting circuit functionality.

Parameter Comparison

Engineering Selection Recommendations

KGM15AR51E473KT (KYOCERA AVX)

This substitute provides direct replacement capability with improved tolerance specification (±10% versus ±20%). Voltage rating remains at 25V, matching the original design specification. Product status is Active, ensuring long-term availability and supply chain stability. This part is recommended for applications where the original 25V rating is sufficient and tighter capacitance tolerance is beneficial.

KGM15AR51H473KT (KYOCERA AVX)

This substitute offers voltage rating upgrade to 50V while maintaining ±10% tolerance. The elevated voltage rating provides additional design margin and reliability enhancement without altering circuit performance. Product status is Active. This part is recommended for applications requiring enhanced voltage headroom or where circuit operating conditions may approach the original 25V specification.

KGM15AR51H473MT (KYOCERA AVX)

This substitute provides voltage rating upgrade to 50V with tolerance matching the original specification (±20%). Product status is Active. This part is recommended for direct replacement where voltage margin improvement is desired without tolerance specification changes.

All three substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical package dimensions, ensuring mechanical and thermal compatibility with existing PCB designs and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can KGM15AR51E473KT be used as a direct replacement for TMK107BJ473MA-T?

A: Yes. KGM15AR51E473KT meets all primary substitution criteria: identical capacitance (0.047 µF), voltage rating (25V), temperature coefficient (X5R), package (0603), and operating temperature range (-55°C ~ 85°C). The ±10% tolerance is tighter than the original ±20%, providing improved capacitance accuracy.

Q: What is the advantage of using KGM15AR51H473KT or KGM15AR51H473MT over KGM15AR51E473KT?

A: Both KGM15AR51H473KT and KGM15AR51H473MT feature 50V voltage rating compared to the original 25V specification. This provides additional voltage margin and enhanced reliability. KGM15AR51H473KT offers ±10% tolerance, while KGM15AR51H473MT matches the original ±20% tolerance.

Q: Are there any package or footprint differences between the main part and substitute parts?

A: No. All parts use identical 0603 (1608 Metric) package with matching dimensions: 0.063" L x 0.031" W (1.60mm x 0.80mm) and maximum thickness of 0.035" (0.90mm). PCB footprints and assembly processes require no modification.

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. All substitute parts listed are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), matching the environmental and regulatory requirements of the original part.

Q: Can substitute parts with 50V rating be used in circuits designed for 25V?

A: Yes. Higher voltage-rated capacitors are functionally compatible in circuits designed for lower voltages. The 50V-rated parts operate safely at 25V and below, providing additional design margin without affecting circuit performance.

Q: What is the significance of the X5R temperature coefficient?

A: X5R temperature coefficient specifies capacitance variation across the operating temperature range of -55°C to 85°C, with maximum capacitance change of ±15%. All substitute parts maintain identical X5R specification, ensuring consistent performance across the full operating temperature range.

Q: Are there inventory considerations when selecting substitute parts?

A: Inventory levels vary among substitute options. KGM15AR51E473KT has 7,459 pieces in stock, KGM15AR51H473KT has 716 pieces, and KGM15AR51H473MT has 809 pieces. Availability should be evaluated based on production volume requirements and lead time constraints.