TMK107B7104KAHT Equivalent & Substitute Parts

Part Overview

The TMK107B7104KAHT is a 0.1 µF ±10% 25V ceramic capacitor in 0603 (1608 Metric) package manufactured by Taiyo Yuden. This multilayer ceramic capacitor (MLCC) features X7R temperature coefficient and is rated for automotive applications with AEC-Q200 compliance. The part is designated as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Equivalent and substitute parts are necessary for ongoing production support, design flexibility, and inventory management across multiple manufacturers and voltage ratings.

Key Parameters

Parameter	Value
Capacitance	0.1 µF
Tolerance	±10%
Voltage Rating	25V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C ~ 125°C
Package / Case	0603 (1608 Metric)
Mounting Type	Surface Mount, MLCC
Ratings	AEC-Q200
Applications	Automotive
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TMK107B7104KAHT is determined by the following criteria:

Direct Equivalents (Same Electrical Specifications): Parts with identical capacitance (0.1 µF), tolerance (±10%), voltage rating (25V), temperature coefficient (X7R), and package (0603) are classified as direct equivalents. These parts are interchangeable without circuit redesign.

Voltage-Upgraded Substitutes (Higher Voltage Rating): Parts with the same capacitance, tolerance, temperature coefficient, and package but with higher voltage ratings (35V or 50V) are functional substitutes. Higher voltage ratings provide additional design margin and are electrically compatible in circuits designed for 25V operation.

Tolerance-Upgraded Substitutes (Tighter Tolerance): Parts with ±5% tolerance instead of ±10% provide improved capacitance accuracy while maintaining all other specifications. These are suitable for applications requiring tighter capacitance control.

Manufacturer Alternatives: Multiple manufacturers (Taiyo Yuden, KEMET, TDK Corporation, Murata Electronics) produce equivalent 0.1 µF X7R 0603 capacitors with automotive-grade certifications. Selection among manufacturers is based on availability, product status, and packaging format.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Package	Product Status	Packaging Format
TMK107B7104KAHT	Taiyo Yuden	0.1 µF	±10%	25V	X7R	0603	Not For New Designs	Tape & Reel
UMK107B7104KAHT	Taiyo Yuden	0.1 µF	±10%	50V	X7R	0603	Not For New Designs	Tape & Reel
GMK107B7104KAHT	Taiyo Yuden	0.1 µF	±10%	35V	X7R	0603	Not For New Designs	Cut Tape & Digi-Reel
C0603C104K3RACAUTO	KEMET	0.1 µF	±10%	25V	X7R	0603	Active	Cut Tape & Digi-Reel
CGA3E2X7R1E104K080AA	TDK Corporation	0.1 µF	±10%	25V	X7R	0603	Active	Cut Tape & Digi-Reel
GCM188R71E104KA57D	Murata Electronics	0.1 µF	±10%	25V	X7R	0603	Not For New Designs	Cut Tape & Digi-Reel
C0603C104J5RACAUTO	KEMET	0.1 µF	±5%	50V	X7R	0603	Active	Cut Tape & Digi-Reel
C0603C104K5RACAUTO	KEMET	0.1 µF	±10%	50V	X7R	0603	Active	Cut Tape & Digi-Reel
CGA3E2X7R1H104K080AA	TDK Corporation	0.1 µF	±10%	50V	X7R	0603	Active	Cut Tape & Digi-Reel
GCM188R71H104KA57D	Murata Electronics	0.1 µF	±10%	50V	X7R	0603	Active	Cut Tape & Digi-Reel
GCM188R71H104KA57J	Murata Electronics	0.1 µF	±10%	50V	X7R	0603	Active	Cut Tape & Digi-Reel

Engineering Selection Recommendations

For Direct Replacement (Same Specifications): C0603C104K3RACAUTO (KEMET) and CGA3E2X7R1E104K080AA (TDK Corporation) are active product alternatives with identical electrical specifications to TMK107B7104KAHT. Both carry AEC-Q200 automotive certification and ROHS3 compliance. These parts are suitable for direct substitution in existing designs.

For Voltage-Upgraded Applications: GCM188R71H104KA57D, GCM188R71H104KA57J (Murata Electronics), C0603C104K5RACAUTO, CGA3E2X7R1H104K080AA (TDK Corporation), and UMK107B7104KAHT (Taiyo Yuden) provide 50V ratings. These parts are electrically compatible in circuits designed for 25V operation and offer improved voltage margin. All maintain AEC-Q200 certification and ROHS3 compliance.

For Intermediate Voltage Requirement: GMK107B7104KAHT (Taiyo Yuden) provides a 35V rating as an intermediate option between 25V and 50V specifications.

For Tighter Tolerance Requirement: C0603C104J5RACAUTO (KEMET) offers ±5% tolerance with 50V rating, providing both improved capacitance accuracy and voltage margin. This part is active and carries full automotive certifications.

Product Status Consideration: Parts designated as "Active" (KEMET, TDK Corporation, and Murata Electronics 50V variants) are recommended for new designs. Parts marked "Not For New Designs" (Taiyo Yuden and Murata Electronics 25V variants) are suitable for legacy design support and ongoing production of existing products.

Frequently Asked Questions (FAQ)

Q: Can I substitute TMK107B7104KAHT with a 50V rated capacitor? A: Yes. A 50V rated capacitor with identical capacitance (0.1 µF), tolerance (±10%), temperature coefficient (X7R), and package (0603) is electrically compatible. The higher voltage rating provides additional design margin without affecting circuit operation in a 25V application.

Q: What is the difference between ±10% and ±5% tolerance? A: Tolerance specifies the allowable deviation from the nominal capacitance value. ±10% tolerance allows deviation from 0.09 µF to 0.11 µF, while ±5% tolerance allows deviation from 0.095 µF to 0.105 µF. Applications requiring tighter capacitance control should specify ±5% tolerance parts.

Q: Are all substitute parts AEC-Q200 certified? A: Yes. All substitute parts listed carry AEC-Q200 automotive certification, meeting automotive industry reliability and quality standards.

Q: What is the significance of "Not For New Designs" status? A: This designation indicates the manufacturer has superseded the part in their product line. While suitable for ongoing production of existing designs, new designs should specify active product alternatives to ensure long-term availability and manufacturer support.

Q: Does packaging format affect electrical performance? A: No. Tape & Reel (TR) and Cut Tape & Digi-Reel packaging formats do not affect electrical performance. Selection is based on manufacturing process requirements and inventory management practices.

Q: Can I use KEMET C0603C104K3RACAUTO as a direct replacement for TMK107B7104KAHT? A: Yes. Both parts have identical electrical specifications: 0.1 µF ±10% 25V X7R 0603. Both are AEC-Q200 certified and ROHS3 compliant. The KEMET part is active, making it suitable for new designs.

Q: What is X7R temperature coefficient? A: X7R indicates the capacitance change over temperature follows a specific curve, with maximum capacitance change of ±15% across the operating temperature range of -55°C to 125°C. This makes X7R suitable for automotive and general-purpose applications requiring stable performance across wide temperature ranges.

Q: Are all parts in this list compatible with automotive applications? A: Yes. All substitute parts are rated for automotive applications and carry AEC-Q200 certification, meeting automotive industry standards for reliability and performance.

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