Equivalent & Substitute Parts for TMK107BJ104MA-T

Part Overview

The TMK107BJ104MA-T is a 0.1 µF ceramic capacitor manufactured by Taiyo Yuden, rated for 25V operation with X5R temperature coefficient in 0603 (1608 Metric) surface mount package. This part is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute components is necessary to support existing inventory requirements, legacy system maintenance, and design continuity where this capacitor is currently specified.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	0.1 µF	Must match exactly for circuit function
Voltage Rating	25V	Minimum acceptable; higher ratings permitted
Tolerance	±20%	Defines acceptable capacitance variation; tighter tolerances acceptable
Temperature Coefficient	X5R	Specifies capacitance stability across operating temperature range
Package / Case	0603 (1608 Metric)	Physical footprint; must match for PCB compatibility
Operating Temperature	-55°C ~ 85°C	Defines environmental operating limits
Mounting Type	Surface Mount, MLCC	Assembly process compatibility
RoHS Status	ROHS3 Compliant	Regulatory compliance requirement
Moisture Sensitivity Level	1 (Unlimited)	Handling and storage requirements

Substitute Part Grouping Explanation

Substitution of the TMK107BJ104MA-T is determined by strict adherence to the following electrical and mechanical parameters:

Mandatory Matching Parameters:

Capacitance: 0.1 µF (exact match required)
Package / Case: 0603 (1608 Metric) (exact match required)
Temperature Coefficient: X5R (exact match required)
Mounting Type: Surface Mount, MLCC (exact match required)
Operating Temperature Range: -55°C ~ 85°C (minimum requirement)

Acceptable Variation Parameters:

Voltage Rating: 25V minimum; higher ratings (50V) are acceptable substitutes
Tolerance: ±20% or tighter (±10%, ±5%) are acceptable substitutes
Manufacturer: Different manufacturers permitted if all other parameters match
Product Status: Active status preferred over "Not For New Designs"
RoHS Compliance: ROHS3 Compliant required

Substitute parts are grouped into three categories based on voltage rating and tolerance specifications relative to the original part.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Product Status	Inventory (Pcs)
TMK107BJ104MA-T	Taiyo Yuden	0.1 µF	±20%	25V	X5R	0603	Not For New Designs	947
TMK107BJ104KA-T	Taiyo Yuden	0.1 µF	±10%	25V	X5R	0603	Not For New Designs	52,200
KGM15AR51E104MT	KYOCERA AVX	0.1 µF	±20%	25V	X5R	0603	Active	17,632
06033D104JAT2A	KYOCERA AVX	0.1 µF	±5%	25V	X5R	0603	Active	1,149
CL10A104KA8NNNC	Samsung Electro-Mechanics	0.1 µF	±10%	25V	X5R	0603	Active	1,094
KGM15AR51E104KT	KYOCERA AVX	0.1 µF	±10%	25V	X5R	0603	Active	119,646
KGM15AR51H104KT	KYOCERA AVX	0.1 µF	±10%	50V	X5R	0603	Active	160,276
KGM15AR51H104MM	KYOCERA AVX	0.1 µF	±20%	50V	X5R	0603	Active	753

Engineering Selection Recommendations

Direct Equivalents (Same Voltage Rating, 25V):

The following parts provide direct electrical equivalence with identical voltage ratings:

KGM15AR51E104MT (KYOCERA AVX): Identical specifications to TMK107BJ104MA-T with Active product status. Recommended for new procurement due to active lifecycle status and substantial inventory availability.
TMK107BJ104KA-T (Taiyo Yuden): Same manufacturer as original part with improved ±10% tolerance. Maintains 25V rating and Not For New Designs status. Suitable for legacy system support with high inventory availability.

Enhanced Tolerance Substitutes (Same Voltage Rating, 25V):

06033D104JAT2A (KYOCERA AVX): Provides ±5% tolerance with Active product status. Acceptable where tighter capacitance tolerance improves circuit performance. Limited inventory.
CL10A104KA8NNNC (Samsung Electro-Mechanics): Offers ±10% tolerance with Active product status and alternative manufacturer qualification. Suitable for applications requiring multi-source capability.
KGM15AR51E104KT (KYOCERA AVX): Provides ±10% tolerance with Active product status and highest inventory availability (119,646 pcs). Recommended as primary substitute for new designs and high-volume applications.

Upgraded Voltage Rating Substitutes (50V):

KGM15AR51H104KT (KYOCERA AVX): Rated for 50V with ±10% tolerance and Active product status. Acceptable where circuit design permits higher voltage rating. Highest inventory availability among all substitutes (160,276 pcs).
KGM15AR51H104MM (KYOCERA AVX): Rated for 50V with ±20% tolerance and Active product status. Acceptable where voltage margin is required and tolerance matches original specification.

Selection Criteria:

For applications requiring exact replacement of TMK107BJ104MA-T, select from direct equivalents with 25V rating. For new designs or where voltage margin is acceptable, 50V-rated substitutes provide enhanced reliability margin. Active product status is preferred for long-term supply assurance. Tolerance selection depends on circuit requirements; ±10% or ±5% tolerances are acceptable upgrades from the original ±20% specification.

Frequently Asked Questions (FAQ)

Q: Can I substitute a 50V-rated capacitor for the 25V TMK107BJ104MA-T?

A: Yes. Higher voltage ratings are acceptable substitutes provided all other parameters match (capacitance, tolerance, temperature coefficient, package, operating temperature range). The 50V-rated KGM15AR51H104KT and KGM15AR51H104MM are valid substitutes. Higher voltage ratings provide additional safety margin in the circuit.

Q: What is the difference between ±20%, ±10%, and ±5% tolerance specifications?

A: Tolerance defines the acceptable variation range of actual capacitance from the nominal 0.1 µF value. ±20% allows 0.08–0.12 µF; ±10% allows 0.09–0.11 µF; ±5% allows 0.095–0.105 µF. Tighter tolerances (±10%, ±5%) are acceptable substitutes for the original ±20% specification and improve circuit performance where capacitance precision is critical.

Q: Are all substitute parts physically compatible with the original PCB footprint?

A: Yes. All listed substitute parts use the 0603 (1608 Metric) package, which specifies identical physical dimensions (0.063" L × 0.031" W, 1.60mm × 0.80mm) and mounting type (Surface Mount, MLCC). All parts are directly compatible with existing PCB layouts designed for TMK107BJ104MA-T.

Q: Why is the TMK107BJ104MA-T marked "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status and is no longer recommended for new product development. Existing inventory remains available for legacy system support and maintenance. For new designs, select from Active status substitutes such as KGM15AR51E104MT, KGM15AR51E104KT, or CL10A104KA8NNNC.

Q: What does X5R temperature coefficient mean?

A: X5R specifies the capacitance stability across the operating temperature range (-55°C to +85°C). X5R-rated capacitors maintain capacitance within ±15% across this full temperature range. This specification is mandatory for all substitutes to ensure consistent circuit performance across environmental conditions.

Q: Can I use a substitute part with different tolerance in a production environment?

A: Yes. Tighter tolerances (±10%, ±5%) are acceptable upgrades and improve circuit performance. Looser tolerances are not acceptable substitutes. All listed substitutes with ±10% or ±5% tolerance are suitable for production use. Verify circuit design does not require the original ±20% tolerance specification.

Q: Which substitute offers the best long-term supply availability?

A: KGM15AR51H104KT (KYOCERA AVX, 50V, ±10%) offers the highest inventory availability at 160,276 pcs with Active product status. KGM15AR51E104KT (KYOCERA AVX, 25V, ±10%) provides the second-highest availability at 119,646 pcs. Both are suitable for applications requiring long-term supply assurance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

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