TMK107BJ105MAHT Equivalent & Substitute Parts

Part Overview

The TMK107BJ105MAHT is a 1 µF ceramic capacitor rated at 25V with X5R temperature coefficient, manufactured by Taiyo Yuden in 0603 (1608 Metric) surface mount package. This component is designed for automotive and SMPS filtering applications with ultra-low ESR characteristics and AEC-Q200 automotive qualification.

The TMK107BJ105MAHT carries a product status of "Not For New Designs," indicating that Taiyo Yuden has discontinued this part for new design implementations. Identifying equivalent and substitute parts is necessary to support existing inventory management, legacy system maintenance, and design transitions to current production components.

Substiute Parts

TMK107BJ105MAHT

Taiyo YudenIn Stock: 16565TMK107BJ105MAHT Datasheet

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GMK107BJ105MAHT

Taiyo YudenIn Stock: 48109GMK107BJ105MAHT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMK107BJ105MAHT is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 1 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Temperature Coefficient: X5R (exact match required)
• Package / Case: 0603 (1608 Metric) (exact match required)
• Mounting Type: Surface Mount, MLCC (exact match required)
• Operating Temperature Range: -55°C ~ 85°C (exact match required)

Allowable Variation Parameters:

• Voltage Rating: May be equal to or greater than 25V (uprating is acceptable)

The GMK107BJ105MAHT qualifies as a substitute part because it maintains identical capacitance, tolerance, temperature coefficient, package dimensions, mounting type, and operating temperature range. The voltage rating of 35V exceeds the original 25V specification, which is an acceptable uprating that maintains backward compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The GMK107BJ105MAHT is a direct substitute for the TMK107BJ105MAHT in applications requiring a 1 µF ceramic capacitor with X5R temperature stability in 0603 surface mount package.

Substitution Basis:

Both parts are manufactured by Taiyo Yuden and carry identical AEC-Q200 automotive qualification ratings, ROHS3 compliance, and unlimited moisture sensitivity level (MSL 1). The GMK107BJ105MAHT provides a higher voltage rating (35V versus 25V), which is compatible with all circuit designs originally specified for the 25V rated TMK107BJ105MAHT.

Both components share the same base product number series designation (M series for Taiyo Yuden), identical physical dimensions, and identical electrical performance characteristics including ultra-low ESR and X5R temperature coefficient stability across the -55°C to 85°C operating range.

The GMK107BJ105MAHT is suitable for direct replacement in automotive and SMPS filtering applications where the TMK107BJ105MAHT was originally specified. The higher voltage rating provides additional design margin without introducing any compatibility issues.

Frequently Asked Questions (FAQ)

Q: Can the GMK107BJ105MAHT replace the TMK107BJ105MAHT in existing designs?

A: Yes. The GMK107BJ105MAHT is a direct substitute with identical capacitance (1 µF), tolerance (±20%), temperature coefficient (X5R), package (0603), and operating temperature range (-55°C to 85°C). The 35V voltage rating exceeds the original 25V specification, making it compatible with all applications designed for the TMK107BJ105MAHT.

Q: What is the significance of the voltage rating difference?

A: The GMK107BJ105MAHT is rated for 35V compared to the TMK107BJ105MAHT at 25V. A higher voltage rating does not negatively impact circuit performance when used in applications designed for lower voltage ratings. The substitute part provides additional voltage margin and reliability in the same physical package.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 0603 (1608 Metric) package with dimensions of 0.063" L x 0.031" W (1.60mm x 0.80mm) and maximum thickness of 0.035" (0.90mm). They are mechanically interchangeable on PCBs designed for 0603 surface mount components.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the TMK107BJ105MAHT and GMK107BJ105MAHT carry AEC-Q200 automotive qualification ratings and are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Q: What is the difference in base product numbers?

A: The TMK107BJ105MAHT uses base product number TMK107B, while the GMK107BJ105MAHT uses base product number GMK107B. Both are Taiyo Yuden M-series ceramic capacitors with identical electrical and mechanical specifications except for voltage rating.

Q: Are there any performance differences in ESR or temperature stability?

A: No. Both parts feature ultra-low ESR and identical X5R temperature coefficient performance across the -55°C to 85°C operating range. Temperature stability and ESR characteristics are equivalent.