TMK212BJ474KGHT Equivalent & Substitute Parts

Part Overview

The TMK212BJ474KGHT is a 0.47 µF ceramic capacitor rated at 25V with X5R temperature coefficient in 0805 (2012 Metric) surface mount package. This component is manufactured by Taiyo Yuden and carries AEC-Q200 automotive qualification. The part is designated as "Not For New Designs," indicating that while it remains available in inventory, alternative solutions should be evaluated for new applications. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate varying voltage requirements across different circuit implementations.

Substiute Parts

TMK212BJ474KGHT

Taiyo YudenIn Stock: 975TMK212BJ474KGHT Datasheet

Current PartRFQ

UMK212BJ474KGHT

Taiyo YudenIn Stock: 16271UMK212BJ474KGHT Datasheet

DirectRFQ

CGA4J2X5R1E474K125AA

TDK CorporationIn Stock: 2064CGA4J2X5R1E474K125AA Datasheet

DirectRFQ

CGA4J3X5R1H474K125AB

TDK CorporationIn Stock: 2903CGA4J3X5R1H474K125AB Datasheet

UpgradeRFQ

CGA4J3X5R1V474K125AB

TDK CorporationIn Stock: 2435CGA4J3X5R1V474K125AB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMK212BJ474KGHT is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Capacitance value: 0.47 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Temperature Coefficient: X5R (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Operating Temperature Range: -55°C ~ 85°C (exact match required)
• Mounting Type: Surface Mount, MLCC (exact match required)
• AEC-Q200 Automotive Rating (required for automotive applications)
• RoHS3 Compliance (required for regulatory compliance)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Voltage Rating Consideration: The rated voltage of 25V is the primary parameter that differentiates the main part from certain substitutes. Parts with equal or higher voltage ratings (50V, 35V) are classified as upgrades and remain electrically compatible in circuits designed for 25V operation. Parts with lower voltage ratings are not suitable substitutes.

Dimensional Compatibility: All substitute parts maintain the 0805 (2012 Metric) package footprint with dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm). Thickness variations (1.35mm to 1.45mm) remain within acceptable assembly tolerances for standard surface mount processes.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Voltage Rating):

CGA4J2X5R1E474K125AA (TDK Corporation) is a direct equivalent to TMK212BJ474KGHT. Both components share identical electrical specifications: 0.47 µF capacitance, ±10% tolerance, 25V voltage rating, and X5R temperature coefficient. Both are AEC-Q200 rated, ROHS3 compliant, and housed in 0805 (2012 Metric) packages. This part is suitable for direct replacement in existing designs without circuit modification. Inventory availability is 1978 pieces.

Voltage Upgrade Options:

UMK212BJ474KGHT (Taiyo Yuden) and CGA4J3X5R1H474K125AB (TDK Corporation) are 50V-rated upgrades. These components are electrically compatible with circuits designed for the 25V TMK212BJ474KGHT, as higher voltage ratings provide additional safety margin. Selection of these parts is appropriate when enhanced voltage headroom is required or when supply chain considerations favor higher voltage variants. Inventory availability is 16192 pieces (Taiyo Yuden) and 2835 pieces (TDK Corporation).

CGA4J3X5R1V474K125AB (TDK Corporation) is a 35V-rated upgrade. This component bridges the voltage gap between the 25V main part and the 50V options, offering moderate voltage enhancement. Inventory availability is 2396 pieces.

Manufacturer Considerations:

Both Taiyo Yuden and TDK Corporation are established manufacturers with AEC-Q200 automotive qualification. Selection between manufacturers is determined by supply chain requirements, inventory availability, and design qualification status. All listed parts maintain identical functional performance within their respective voltage ratings.

Product Status:

All listed parts carry "Not For New Designs" status. This designation reflects industry lifecycle management practices and does not indicate functional deficiency. Parts remain fully qualified and available for production use in existing designs and ongoing applications.

Frequently Asked Questions (FAQ)

Q: Can CGA4J3X5R1H474K125AB (50V) be used as a direct replacement for TMK212BJ474KGHT (25V)?

A: Yes. The CGA4J3X5R1H474K125AB is electrically compatible with circuits designed for TMK212BJ474KGHT. The higher voltage rating (50V vs. 25V) provides additional voltage margin and does not affect circuit operation. All other electrical parameters—capacitance, tolerance, temperature coefficient, and operating temperature range—are identical.

Q: What is the difference between the Taiyo Yuden and TDK Corporation parts?

A: Both manufacturers provide equivalent electrical performance with identical capacitance (0.47 µF), tolerance (±10%), temperature coefficient (X5R), and AEC-Q200 automotive rating. The primary differences are manufacturer identity, base product number designation (TMK/UMK for Taiyo Yuden; CGA for TDK), and thickness specifications (1.35mm vs. 1.45mm). Selection is determined by supply chain availability and design qualification requirements.

Q: Are there any assembly or PCB layout considerations when substituting these parts?

A: All substitute parts maintain the 0805 (2012 Metric) package footprint with identical land pattern dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). Thickness variations (1.35mm to 1.45mm) are within standard surface mount assembly tolerances and do not require PCB redesign. Standard pick-and-place and reflow processes are applicable to all listed parts.

Q: Why is the TMK212BJ474KGHT marked "Not For New Designs"?

A: This designation reflects standard industry lifecycle management. Parts marked "Not For New Designs" remain fully functional and available for production use in existing designs and ongoing applications. New designs should evaluate current alternatives, but existing designs using this part number require no modification.

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

A: X5R indicates a temperature coefficient range of ±15% across the operating temperature range of -55°C to 85°C. This specification ensures stable capacitance performance across automotive temperature extremes. All substitute parts maintain identical X5R specifications, guaranteeing equivalent thermal performance.

Q: Are all listed parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification, meeting current regulatory requirements for hazardous substance restrictions. This compliance status is maintained across all manufacturers and voltage ratings.

Q: What does Moisture Sensitivity Level 1 (Unlimited) mean?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity restrictions. These parts do not require special moisture-controlled storage, handling, or baking procedures prior to assembly. Standard warehouse storage conditions are acceptable.

Q: Can I use a 35V part (CGA4J3X5R1V474K125AB) instead of a 50V part (CGA4J3X5R1H474K125AB)?

A: Yes. In circuits designed for 25V operation, both 35V and 50V rated parts are electrically compatible. Selection between these voltage ratings is determined by design margin requirements and supply chain availability. Lower voltage ratings (within the acceptable range) do not compromise circuit function.