MMASS31LAB7473KTNA01 Equivalent & Substitute Parts

Part Overview

The MMASS31LAB7473KTNA01 is a 0.047 µF ceramic capacitor rated at 630V with X7R temperature coefficient in 1206 (3216 Metric) surface mount package. Manufactured by Taiyo Yuden, this multilayer ceramic capacitor (MLCC) is designed for medical and non-critical applications. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts become necessary when addressing design requirements for automotive applications, enhanced reliability ratings, or when managing inventory constraints across multiple manufacturers.

Substiute Parts

MMASS31LAB7473KTNA01

Taiyo YudenIn Stock: 802MMASS31LAB7473KTNA01 Datasheet

Current PartRFQ

SMK316AB7473KLHT

Taiyo YudenIn Stock: 5955SMK316AB7473KLHT Datasheet

UpgradeRFQ

GCJ31CR7LV473KW01K

Murata ElectronicsIn Stock: 7917GCJ31CR7LV473KW01K Datasheet

UpgradeRFQ

GCJ31CR7LV473KW01L

Murata ElectronicsIn Stock: 3027GCJ31CR7LV473KW01L Datasheet

UpgradeRFQ

FM31X473K631EEG

Venatronics LLCIn Stock: 2947FM31X473K631EEG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMASS31LAB7473KTNA01 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 0.047 µF
• Voltage Rating: 630V
• Tolerance: ±10%
• Temperature Coefficient: X7R
• Operating Temperature Range: -55°C ~ 125°C
• Package / Case: 1206 (3216 Metric)
• Mounting Type: Surface Mount, MLCC
• Physical Dimensions: 0.126" L x 0.063" W (3.20mm x 1.60mm)
• Thickness (Max): 0.071" (1.80mm)
• Packaging Format: Tape & Reel (TR)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts meet these mandatory parameters. Substitute parts are categorized as Upgrade or Parametric Equivalent based on product status and application certifications. Upgrade parts offer enhanced reliability ratings or expanded application support. Parametric Equivalent parts provide functional equivalence without additional certifications.

Parameter Comparison

Engineering Selection Recommendations

For Active Product Status with Automotive Qualification: GCJ31CR7LV473KW01K and GCJ31CR7LV473KW01L (Murata Electronics) are recommended for new designs requiring AEC-Q200 automotive qualification. Both parts maintain Active product status and provide soft termination features suitable for boardflex-sensitive applications. These parts are functionally equivalent to the MMASS31LAB7473KTNA01 across all critical electrical and mechanical parameters.

For Taiyo Yuden Continuity: GCJ31CR7LV473KW01K or GCJ31CR7LV473KW01L provide direct substitution with enhanced automotive reliability ratings while maintaining the same manufacturer ecosystem for the base MMASS series.

For Parametric Equivalence: FM31X473K631EEG (Venatronics LLC) provides parametric equivalence with Active product status. This part is suitable for SMPS filtering applications and maintains all electrical and mechanical specifications of the main part.

For Inventory Availability: GCJ31CR7LV473KW01K offers the highest inventory level (7,822 pcs) among substitute options, followed by SMK316AB7473KLHT (5,866 pcs). However, SMK316AB7473KLHT carries "Not For New Designs" status and should be reserved for legacy system support only.

Frequently Asked Questions (FAQ)

Q: Can GCJ31CR7LV473KW01K replace MMASS31LAB7473KTNA01 in medical applications? A: Yes. Both parts are electrically and mechanically equivalent with identical capacitance (0.047 µF), voltage rating (630V), temperature coefficient (X7R), operating temperature range (-55°C ~ 125°C), and package specifications (1206 / 3216 Metric). The GCJ31CR7LV473KW01K carries additional AEC-Q200 automotive qualification, which does not restrict medical application use.

Q: What is the difference between GCJ31CR7LV473KW01K and GCJ31CR7LV473KW01L? A: Both parts are manufactured by Murata Electronics with identical electrical specifications, package dimensions, and AEC-Q200 ratings. The suffix difference (K vs. L) indicates manufacturing lot or packaging variant. Both are functionally interchangeable for the MMASS31LAB7473KTNA01 application.

Q: Why is SMK316AB7473KLHT marked "Not For New Designs"? A: SMK316AB7473KLHT carries "Not For New Designs" status from Taiyo Yuden. This designation indicates the part is in mature or declining production phase. While electrically and mechanically equivalent to MMASS31LAB7473KTNA01, it should be used only for legacy system maintenance or repair applications, not for new product development.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All identified substitute parts (SMK316AB7473KLHT, GCJ31CR7LV473KW01K, GCJ31CR7LV473KW01L, and FM31X473K631EEG) are ROHS3 compliant, matching the compliance status of the main part MMASS31LAB7473KTNA01.

Q: What does "Soft Termination" mean on the Murata parts? A: Soft Termination is a feature on GCJ31CR7LV473KW01K and GCJ31CR7LV473KW01L that reduces mechanical stress on component terminations during thermal cycling and board flexing. This feature is particularly beneficial for boardflex-sensitive applications but does not affect electrical equivalence for standard applications.

Q: Can FM31X473K631EEG be used in automotive applications? A: FM31X473K631EEG does not carry AEC-Q200 automotive qualification. It is suitable for SMPS filtering and general industrial applications. For automotive applications requiring AEC-Q200 compliance, use GCJ31CR7LV473KW01K or GCJ31CR7LV473KW01L instead.

Q: Are the physical dimensions identical across all substitute parts? A: Yes. All substitute parts maintain identical physical dimensions: 0.126" L x 0.063" W (3.20mm x 1.60mm) with maximum thickness of 0.071" (1.80mm). All parts are packaged in 1206 (3216 Metric) format in Tape & Reel configuration, ensuring direct mechanical compatibility.