MLASQ45MSB7104KTNA01 Equivalent & Substitute Parts

Part Overview

The MLASQ45MSB7104KTNA01 is a 0.1 µF ceramic capacitor rated for 250V with X7R temperature coefficient in 1812 (4532 Metric) surface mount package. This multilayer ceramic capacitor (MLCC) is manufactured by Taiyo Yuden and is currently in Active product status. The part is designed for medical and non-critical applications requiring stable capacitance across the operating temperature range of -55°C to 125°C.

Substitute parts become necessary when the primary part experiences extended lead times, inventory constraints, or when design requirements permit selection from alternative qualified sources while maintaining electrical and mechanical compatibility.

Substiute Parts

MLASQ45MSB7104KTNA01

Taiyo YudenIn Stock: 790MLASQ45MSB7104KTNA01 Datasheet

Current PartRFQ

QMK432B7104KMHT

Taiyo YudenIn Stock: 1323QMK432B7104KMHT Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MLASQ45MSB7104KTNA01 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Capacitance value: 0.1 µF
• Voltage rating: 250V minimum
• Tolerance: ±10% or tighter
• Temperature coefficient: X7R

Mechanical Parameters (Non-Negotiable):

• Package designation: 1812 (4532 Metric)
• Mounting type: Surface Mount, MLCC
• Physical dimensions: 0.177" L x 0.126" W (4.50mm x 3.20mm), thickness 0.106" (2.70mm) maximum

Compliance Parameters (Required):

• RoHS3 compliance
• Moisture Sensitivity Level: 1 or lower
• REACH Unaffected status

The substitute part QMK432B7104KMHT meets all electrical, mechanical, and compliance requirements. The primary distinction is product status: the main part is Active, while the substitute is designated Not For New Designs. This status difference does not affect electrical or mechanical compatibility but indicates manufacturing lifecycle positioning.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (MLASQ45MSB7104KTNA01): Select this part for new designs and applications requiring long-term availability assurance. Active product status ensures continued manufacturing support and supply chain stability. This part is suitable for medical and non-critical applications.

Substitute Part Selection (QMK432B7104KMHT): The QMK432B7104KMHT is electrically and mechanically equivalent and maintains full compliance with RoHS3 and REACH requirements. However, this part carries Not For New Designs status, indicating it is in end-of-life phase. Use this substitute only when:

• The primary part is unavailable due to supply constraints
• Existing inventory of this part is available for immediate fulfillment
• The application does not require long-term design support

The QMK432B7104KMHT includes AEC-Q200 automotive qualification, which provides additional reliability assurance for applications requiring automotive-grade components, though this is not a requirement for substitution compatibility.

Frequently Asked Questions (FAQ)

Q: Can QMK432B7104KMHT be used as a direct replacement for MLASQ45MSB7104KTNA01 on existing PCBs?

A: Yes. Both parts share identical electrical specifications (0.1 µF, 250V, ±10%, X7R), identical physical dimensions (1812 / 4532 Metric package), and identical mounting characteristics (Surface Mount, MLCC). PCB footprints are fully compatible.

Q: What is the significance of the "Not For New Designs" status on the substitute part?

A: This designation indicates the QMK432B7104KMHT is in end-of-life phase and Taiyo Yuden does not recommend its use in new product designs. Existing inventory may be available for limited periods. For new designs, the MLASQ45MSB7104KTNA01 (Active status) is the appropriate selection.

Q: Are there compliance differences between the two parts?

A: No. Both parts are ROHS3 Compliant, REACH Unaffected, and carry identical Moisture Sensitivity Level (MSL 1). Both meet the same regulatory requirements.

Q: Does the AEC-Q200 rating on the substitute part affect substitution compatibility?

A: No. AEC-Q200 is an automotive qualification standard that provides additional reliability data. Its presence on the substitute part does not create incompatibility; it represents an additional qualification that may be beneficial for certain applications but is not required for electrical or mechanical substitution.

Q: What are the key parameters that must match for substitution?

A: Capacitance (0.1 µF), voltage rating (250V), tolerance (±10%), temperature coefficient (X7R), package type (1812 / 4532 Metric), operating temperature range (-55°C to 125°C), and compliance status (RoHS3, REACH Unaffected, MSL 1) must all match or be equivalent.

Q: Can these parts be used interchangeably in medical applications?

A: The MLASQ45MSB7104KTNA01 is specified for medical applications. The QMK432B7104KMHT is specified for automotive and SMPS filtering applications. While both parts meet identical electrical and mechanical specifications, application-specific qualification requirements should be verified with design documentation before substitution in medical applications.

Q: What is the difference in inventory availability?

A: The main part (MLASQ45MSB7104KTNA01) has 715 pieces in stock. The substitute part (QMK432B7104KMHT) has 1308 pieces in stock. Inventory levels are subject to change and should be confirmed at time of procurement.