MLASJ063SB5334MFNA01 Equivalent & Substitute Parts

Part Overview

The MLASJ063SB5334MFNA01 is a 0.33 µF ceramic capacitor manufactured by Taiyo Yuden, rated for 6.3V with X5R temperature coefficient in 0201 (0603 Metric) surface mount package. This multilayer ceramic capacitor (MLCC) is designed for medical and non-critical applications with unlimited moisture sensitivity rating.

The part is currently in Active product status with 704 units in stock. Substitute parts are identified for applications requiring alternative sourcing, inventory management, or design flexibility while maintaining equivalent electrical and mechanical performance.

Substiute Parts

MLASJ063SB5334MFNA01

Taiyo YudenIn Stock: 773MLASJ063SB5334MFNA01 Datasheet

Current PartRFQ

C0603X5R0J334M030BC

TDK CorporationIn Stock: 2584C0603X5R0J334M030BC Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MLASJ063SB5334MFNA01 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance value: 0.33 µF
• Voltage rating: 6.3V minimum
• Tolerance: ±20% or tighter
• Temperature coefficient: X5R
• Operating temperature range: -55°C to 85°C minimum

Mechanical Parameters (Non-Negotiable):

• Package type: 0201 (0603 Metric)
• Mounting type: Surface Mount, MLCC
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Maximum thickness: 0.013" (0.33mm)

Compliance Parameters (Non-Negotiable):

• RoHS3 compliance
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Unaffected status

Substitute parts must satisfy all parameters in each category. Deviations in any non-negotiable parameter disqualify a part from substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The MLASJ063SB5334MFNA01 (Taiyo Yuden) is the recommended primary selection for new designs. This part maintains Active product status, indicating ongoing manufacturer support and long-term availability commitment. It is suitable for medical and non-critical applications with established supply chain reliability.

Substitute Part Selection: The C0603X5R0J334M030BC (TDK Corporation) is a parametric equivalent that satisfies all electrical, mechanical, and compliance requirements. However, this part carries "Not For New Designs" status, indicating the manufacturer has discontinued active development and support. This substitute is appropriate for:

• Existing design maintenance and field replacements
• Inventory supplementation when primary part availability is constrained
• Applications where design revision is not feasible

Both parts maintain identical electrical performance, physical compatibility, and regulatory compliance (ROHS3, REACH Unaffected, EAR99 ECCN classification).

Frequently Asked Questions (FAQ)

Q: Can the C0603X5R0J334M030BC be used as a direct replacement for the MLASJ063SB5334MFNA01?

A: Yes, the C0603X5R0J334M030BC is a direct parametric equivalent. Both parts share identical capacitance (0.33 µF), voltage rating (6.3V), tolerance (±20%), temperature coefficient (X5R), operating temperature range (-55°C to 85°C), package type (0201/0603 Metric), and compliance certifications (ROHS3, REACH Unaffected). Physical dimensions and mounting characteristics are identical, enabling direct PCB footprint compatibility without layout modification.

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

A: The "Not For New Designs" designation indicates that TDK has transitioned this part to end-of-life status and is not actively supporting new product development with this component. While the part remains functionally equivalent and available in inventory, manufacturers typically apply this status when discontinuing active development or planning future availability reduction. For new designs, the Taiyo Yuden MLASJ063SB5334MFNA01 is the recommended selection due to its Active status.

Q: Are there any performance differences between these two parts?

A: No performance differences exist between the MLASJ063SB5334MFNA01 and C0603X5R0J334M030BC. Both parts meet identical electrical specifications, temperature stability requirements, and regulatory compliance standards. The TDK part includes a "Low ESL" feature notation, which is a manufacturing characteristic that does not alter the core electrical performance or substitution eligibility.

Q: Can I use a substitute part with a higher voltage rating?

A: Substitution requires exact voltage rating match at 6.3V. Parts with higher voltage ratings (such as 10V or 16V) are not considered equivalent substitutes, as they represent different electrical specifications and may introduce unintended circuit behavior changes. Voltage rating selection is application-specific and must not be altered without full circuit re-evaluation.

Q: What is the significance of the 0201 (0603 Metric) package designation?

A: The 0201 package designation refers to imperial dimensions (0.024" x 0.012"), while 0603 Metric refers to the equivalent metric dimensions (0.60mm x 0.30mm). Both designations describe the same physical package size. This is one of the smallest surface mount capacitor packages in standard use. Substitution requires exact package match to ensure PCB footprint compatibility and assembly process compatibility.

Q: Are moisture sensitivity considerations important for this part?

A: Both the primary part and substitute carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions. This is the most favorable MSL rating and means the parts do not require special dry-pack storage, desiccant handling, or bake-out procedures prior to assembly. This characteristic is identical across both parts.

Q: What compliance certifications apply to both parts?

A: Both the MLASJ063SB5334MFNA01 and C0603X5R0J334M030BC are ROHS3 compliant, REACH Unaffected, and classified under ECCN EAR99 (commodity classification). These certifications ensure regulatory compliance for medical device applications and general industrial use without export restrictions. Compliance status is identical between the primary and substitute parts.