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MBASU31LSB7105KTNA01 Ceramic Capacitor 1µF 50V X7R 1206 Equivalent & Substitute Parts
Part Overview
The MBASU31LSB7105KTNA01 is a 1 µF ±10% 50V ceramic capacitor manufactured by Taiyo Yuden in the 1206 (3216 Metric) surface mount package with X7R temperature coefficient. This multilayer ceramic capacitor (MLCC) is classified as Active product status and is suitable for general purpose applications. The part operates across the temperature range of -55°C to 125°C with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).
Identification of equivalent and substitute parts is necessary to address supply chain continuity, inventory optimization, and design flexibility across multiple manufacturers while maintaining identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 1 µF |
| Tolerance | ±10% |
| Voltage Rating | 50V |
| Temperature Coefficient | X7R |
| Operating Temperature Range | -55°C to 125°C |
| Package / Case | 1206 (3216 Metric) |
| Physical Dimensions | 0.126" L × 0.063" W (3.20mm × 1.60mm) |
| Thickness (Max) | 0.071" (1.80mm) |
| Mounting Type | Surface Mount, MLCC |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts are classified into two categories based on product lifecycle status and application scope:
Upgrade Substitutes are parts that maintain identical electrical and mechanical parameters while offering enhanced certifications or expanded application support. These parts are suitable for new designs and production environments requiring automotive or specialized filtering applications.
Parametric Equivalents are parts that match all core electrical specifications and package dimensions but may differ in product status, packaging format, or compliance certifications. These parts provide functional equivalence for general purpose applications.
The substitution logic is strictly based on the following parameters:
- Capacitance: 1 µF (exact match required)
- Tolerance: ±10% (exact match required)
- Voltage Rating: 50V (exact match required)
- Temperature Coefficient: X7R (exact match required)
- Operating Temperature: -55°C to 125°C (exact match required)
- Package / Case: 1206 (3216 Metric) (exact match required)
- Physical Dimensions: 0.126" L × 0.063" W × 0.071" max thickness (exact match required)
- Mounting Type: Surface Mount, MLCC (exact match required)
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Capacitance | Tolerance | Voltage | Temp Coeff | Operating Temp | Package | Dimensions (L×W) | Thickness Max | Product Status | RoHS Status | MSL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MBASU31LSB7105KTNA01 | Taiyo Yuden | 1 µF | ±10% | 50V | X7R | -55°C ~ 125°C | 1206 (3216) | 0.126" × 0.063" | 0.071" | Active | ROHS3 | 1 |
| UMF316B7105KLHT | Taiyo Yuden | 1 µF | ±10% | 50V | X7R | -55°C ~ 125°C | 1206 (3216) | 0.126" × 0.063" | 0.071" | Not For New Designs | ROHS3 | 1 |
| AC1206KKX7R9BB105 | YAGEO | 1 µF | ±10% | 50V | X7R | -55°C ~ 125°C | 1206 (3216) | 0.126" × 0.063" | 0.071" | Active | ROHS3 | 1 |
| C1206F105K5RACAUTO | KEMET | 1 µF | ±10% | 50V | X7R | -55°C ~ 125°C | 1206 (3216) | 0.126" × 0.063" | 0.071" | Active | ROHS3 | 1 |
| CGA5L3X7R1H105K160AB | TDK Corporation | 1 µF | ±10% | 50V | X7R | -55°C ~ 125°C | 1206 (3216) | 0.126" × 0.063" | 0.071" | Active | ROHS3 | 1 |
| CL31B105KBHWPNE | Samsung Electro-Mechanics | 1 µF | ±10% | 50V | X7R | -55°C ~ 125°C | 1206 (3216) | 0.126" × 0.063" | 0.071" | Active | ROHS3 | 1 |
| 12065C105KAR1-EM | KYOCERA AVX | 1 µF | ±10% | 50V | X7R | -55°C ~ 125°C | 1206 (3216) | 0.126" × 0.063" | 0.071" | Active | RoHS non-compliant | 1 |
| C1206F105K5RAC7800 | KEMET | 1 µF | ±10% | 50V | X7R | -55°C ~ 125°C | 1206 (3216) | 0.126" × 0.063" | 0.071" | Active | ROHS3 | 1 |
| C3216X7R1H105K160AB | TDK Corporation | 1 µF | ±10% | 50V | X7R | -55°C ~ 125°C | 1206 (3216) | 0.126" × 0.063" | 0.071" | Active | ROHS3 | 1 |
| CC1206KFX7R9BB105 | YAGEO | 1 µF | ±10% | 50V | X7R | -55°C ~ 125°C | 1206 (3216) | 0.126" × 0.063" | 0.071" | Active | ROHS3 | 1 |
| CC1206KKX7R9BB105 | YAGEO | 1 µF | ±10% | 50V | X7R | -55°C ~ 125°C | 1206 (3216) | 0.126" × 0.063" | 0.071" | Active | ROHS3 | 1 |
Engineering Selection Recommendations
Upgrade Substitutes for Active Production
UMF316B7105KLHT (Taiyo Yuden) is classified as "Not For New Designs" and carries AEC-Q200 automotive qualification. This part is suitable for existing production lines requiring automotive or SMPS filtering applications but should not be selected for new design implementations.
AC1206KKX7R9BB105 (YAGEO) is Active status with AEC-Q200 automotive qualification. This part is suitable for automotive applications and new designs requiring automotive-grade reliability.
C1206F105K5RACAUTO (KEMET) is Active status with AEC-Q200 automotive qualification and Open Mode failure characteristic. This part is designated for automotive applications and is suitable for new designs.
CGA5L3X7R1H105K160AB (TDK Corporation) is Active status with AEC-Q200 automotive qualification. This part is suitable for automotive applications and new designs with the highest inventory availability (231,083 pcs).
CL31B105KBHWPNE (Samsung Electro-Mechanics) is Active status with AEC-Q200 automotive qualification and Open Mode failure characteristic. This part is suitable for automotive applications and new designs.
Parametric Equivalents for General Purpose Applications
12065C105KAR1-EM (KYOCERA AVX) is Active status but RoHS non-compliant. This part is designated for prototype and boardflex-sensitive applications with soft termination characteristics. Selection requires confirmation of RoHS compliance requirements.
C1206F105K5RAC7800 (KEMET) is Active status for general purpose applications. This part carries Open Mode failure characteristic and is suitable for non-automotive general purpose designs.
C3216X7R1H105K160AB (TDK Corporation) is Active status for general purpose applications with Low ESL feature. This part is suitable for general purpose designs with high inventory availability (153,840 pcs).
CC1206KFX7R9BB105 (YAGEO) is Active status for general purpose applications available in Cut Tape & Digi-Reel packaging format.
CC1206KKX7R9BB105 (YAGEO) is Active status for general purpose applications available in Cut Tape & Digi-Reel packaging format with highest inventory availability among YAGEO options (101,200 pcs).
Frequently Asked Questions (FAQ)
Q: What determines if a part can substitute for MBASU31LSB7105KTNA01?
A: A part qualifies as a substitute when it matches all of the following parameters: 1 µF capacitance, ±10% tolerance, 50V voltage rating, X7R temperature coefficient, -55°C to 125°C operating temperature range, 1206 (3216 Metric) package, 0.126" L × 0.063" W dimensions, 0.071" maximum thickness, and surface mount MLCC mounting type.
Q: What is the difference between Upgrade Substitutes and Parametric Equivalents?
A: Upgrade Substitutes are parts with Active product status that include AEC-Q200 automotive certification and are suitable for new designs in automotive or specialized applications. Parametric Equivalents match all electrical and mechanical specifications but may have different product lifecycle status, packaging formats, or compliance certifications, making them suitable for general purpose applications or existing production environments.
Q: Can I use automotive-qualified parts in general purpose applications?
A: Yes. Automotive-qualified parts (AEC-Q200) meet or exceed general purpose application requirements. Parts such as AC1206KKX7R9BB105, C1206F105K5RACAUTO, CGA5L3X7R1H105K160AB, and CL31B105KBHWPNE are suitable for both automotive and general purpose applications.
Q: What does "Not For New Designs" mean for UMF316B7105KLHT?
A: This designation indicates the part is in mature or end-of-life phase. While electrically and mechanically equivalent, it should only be used in existing production lines or legacy designs. New designs should select from parts with Active product status.
Q: Are there packaging format differences among the substitutes?
A: Yes. Most substitutes are supplied in Tape & Reel (TR) format. CL31B105KBHWPNE is available in Cut Tape (CT) & Digi-Reel® format. CC1206KFX7R9BB105 and CC1206KKX7R9BB105 are available in Cut Tape (CT) & Digi-Reel® format. Packaging format selection depends on assembly equipment and procurement requirements.
Q: What is the significance of RoHS compliance status?
A: ROHS3 compliance is required for most commercial and automotive applications in regulated markets. The part 12065C105KAR1-EM is RoHS non-compliant and should only be selected when RoHS compliance is not a requirement, such as in prototype or specialized military applications.
Q: Which substitute has the highest inventory availability?
A: CGA5L3X7R1H105K160AB (TDK Corporation) has the highest inventory with 231,083 pcs available, followed by C3216X7R1H105K160AB (TDK Corporation) with 153,840 pcs.
Q: Do all substitutes have the same moisture sensitivity level?
A: Yes. All substitutes listed have MSL 1 (Unlimited), matching the original MBASU31LSB7105KTNA01 specification. This indicates no moisture sensitivity restrictions for storage or handling.
Q: What does "Open Mode" failure characteristic mean?
A: Open Mode indicates the capacitor fails in an open circuit condition rather than a short circuit. Parts with this characteristic include C1206F105K5RACAUTO, CL31B105KBHWPNE, and C1206F105K5RAC7800. This is a safety-oriented failure mode suitable for applications where circuit protection is required.
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