The MLASH45MSB7105KTNA01 from Taiyo Yuden is a surface-mount multilayer ceramic capacitor (MLCC) delivering 1 µF capacitance at 100V in the standard 1812 (4532 metric) package format. This component belongs to the MLAS series and is designed to meet the requirements of medical and non-critical applications where moderate voltage handling and stable performance across temperature extremes are required.
Built on X7R dielectric technology, this capacitor maintains its electrical characteristics across an operating temperature range of -55°C to 125°C, making it suitable for environments subject to thermal cycling or prolonged exposure to elevated temperatures. The X7R formulation offers a balanced compromise between capacitance density and temperature stability, with capacitance variation typically limited to ±15% over the full temperature span. The ±10% tolerance at room temperature provides predictable performance in filtering, decoupling, and energy storage circuits where precise capacitance values support consistent operation.
The 100V voltage rating positions this device for use in intermediate-voltage power supplies, motor drives, and industrial control systems where higher working voltages are present. The 1812 footprint measures 0.177" L x 0.126" W (4.50mm x 3.20mm) with a maximum thickness of 0.106" (2.70mm), offering a practical balance between board real estate and volumetric efficiency. This package size is widely supported by automated pick-and-place equipment and reflow soldering processes, facilitating integration into high-volume manufacturing environments.
The medical and non-critical application designation reflects the component's suitability for circuits where failure does not directly compromise patient safety, such as auxiliary power stages, user interface modules, or sensor signal conditioning paths. The ROHS3 compliance and Moisture Sensitivity Level 1 classification simplify procurement and handling, as the component requires no special baking or storage protocols prior to assembly.
Common use cases for 1 µF 100V X7R capacitors in 1812 packages include bulk decoupling in distributed power architectures, output filtering in DC-DC converters, and snubber networks in switching circuits. The combination of moderate capacitance and higher voltage handling makes this part a practical choice for designers consolidating bill-of-material counts or reducing the number of parallel capacitors in space-constrained layouts. The active product status and tape-and-reel packaging support long-term production planning and automated assembly workflows.
MLASH45MSB7105KTNA01 (1)
Finding a Compatible Replacement for Taiyo Yuden MLASH45MSB7105KTNA01 1µF 100V X7R 1812 MLCC
Replacing Taiyo Yuden MLASH45MSB7105KTNA01 is not only a matter of matching “1µF 100V 1812.” In MLCC selection, capacitance tolerance, DC bias behavior, dielectric class, package dimensions, termination design, operating temperature, qualification level, and availability can all affect whether an alternative will behave correctly in the circuit.
MLASH45MSB7105KTNA01 is a Taiyo Yuden MLAS series ceramic capacitor specified as 1µF, ±10%, 100V, X7R, 1812 / 4532 metric, supplied in tape and reel. It is described for medical, non-critical applications, so replacement selection should consider not only electrical equivalence but also supply-chain traceability, compliance status, and application risk.
Common replacement or alternative part numbers to evaluate include:
| Manufacturer | Candidate Part Number |
|---|---|
| Taiyo Yuden |
HMK432B7105KMHT
Taiyo Yuden
CAP CER 1UF 100V X7R 1812
97807
|
| Murata | GRM43DR72A105KA01L |
| TDK |
C4532X7R2A105K230KA
TDK Corporation
CAP CER 1UF 100V X7R 1812
200000
|
| KEMET |
C1812C105K1RACTU
KEMET
CAP CER 1UF 100V X7R 1812
52814
|
| Samsung Electro-Mechanics | CL43B105KCU5PNC |
| KYOCERA AVX |
18121C105KAT2A
KYOCERA AVX
CAP CER 1UF 100V X7R 1812
2000000
|
These parts are broadly aligned as 1µF, 100V, X7R, 1812 multilayer ceramic capacitors, but they should not be treated as automatic drop-in replacements without checking derating, PCB land pattern compatibility, mechanical stress conditions, and manufacturer-specific capacitance behavior under DC voltage.
What Taiyo Yuden MLASH45MSB7105KTNA01 Defines as the Original Design Baseline
Taiyo Yuden MLASH45MSB7105KTNA01 is a surface-mount multilayer ceramic capacitor using X7R dielectric in an 1812 case size. Its 1µF capacitance and 100V voltage rating place it in applications where moderate bulk decoupling, filtering, timing stability, or local energy storage may be needed at board level.
| Parameter | Taiyo Yuden MLASH45MSB7105KTNA01 |
|---|---|
| Component type | Multilayer ceramic capacitor, MLCC |
| Capacitance | 1µF |
| Tolerance | ±10% |
| Rated voltage | 100V |
| Dielectric | X7R |
| Operating temperature | -55°C to +125°C |
| Package / case | 1812, 4532 metric |
| Dimensions | 4.50mm x 3.20mm |
| Maximum thickness | 2.70mm |
| Mounting type | Surface mount |
| Packaging | Tape & Reel |
| Series | Taiyo Yuden MLAS |
| Compliance | RoHS3 compliant, REACH unaffected |
| Application note | Medical, non-critical |
The 100V rating gives margin in 24V, 48V, industrial control, motor-drive auxiliary, instrumentation, and power-conversion circuits. However, X7R capacitors lose effective capacitance under DC bias, so a replacement should be evaluated by effective capacitance at the actual operating voltage rather than nominal capacitance alone.
The 1812 package helps provide capacitance and voltage capability, but it also introduces mechanical considerations. Larger MLCCs are more exposed to board flexure, solder joint stress, and thermal cycling effects. If MLASH45MSB7105KTNA01 is used near connectors, mounting holes, relays, transformers, or high-flex areas, termination robustness and PCB layout become part of the replacement decision.
Typical use cases include input and output filtering, DC rail decoupling, noise suppression, charge storage, and non-critical medical electronics where stable sourcing and compliance documentation are relevant. A suitable MLASH45MSB7105KTNA01 equivalent should therefore match the electrical envelope while fitting the existing land pattern and production process.
Engineering Review of MLASH45MSB7105KTNA01 Alternative Part Numbers
The following table compares realistic candidate replacements for Taiyo Yuden MLASH45MSB7105KTNA01. Each part should be confirmed against the latest manufacturer datasheet, especially for thickness, termination material, soldering profile, and DC bias curves.
| Manufacturer | Part Number | Key Specifications | Product Features | Typical Applications | Why It Can Replace the Original Part | Main Differences or Limitations | Recommended Usage |
|---|---|---|---|---|---|---|---|
| Taiyo Yuden |
HMK432B7105KMHT
Taiyo Yuden
CAP CER 1UF 100V X7R 1812
97807
| 1µF, ±10%, 100V, X7R, 1812 / 4532 metric MLCC | Same manufacturer family style; standard MLCC construction; tape-and-reel availability depending on distributor | DC rail decoupling, power filtering, industrial electronics, general board-level bypassing | Closely matches capacitance, voltage rating, dielectric, tolerance, and package size of MLASH45MSB7105KTNA01 | May not carry the same MLAS series positioning or medical non-critical application designation; suffix differences may affect packaging or construction details | First-choice electrical substitute when the design mainly requires a Taiyo Yuden 1µF 100V X7R 1812 capacitor |
| Murata | GRM43DR72A105KA01L | 1µF, ±10%, 100V, X7R, 1812 MLCC | Broadly used GRM series; strong availability; well-documented electrical curves | Power supply decoupling, industrial control boards, communication equipment, instrumentation | Matches the main electrical values and package class needed for a 1µF 100V X7R 1812 replacement | DC bias performance and physical thickness may differ from Taiyo Yuden; board qualification may be needed in high-stress locations | Good replacement where documentation, sourcing flexibility, and widely recognized MLCC performance data are valued |
| TDK |
C4532X7R2A105K230KA
TDK Corporation
CAP CER 1UF 100V X7R 1812
200000
| 1µF, ±10%, 100V, X7R, 1812 / C4532 case | Established TDK commercial MLCC series; suitable for automated assembly | Switching power supplies, local decoupling, filtering, industrial modules | Electrical class aligns with MLASH45MSB7105KTNA01: 1µF, 100V, X7R, 1812 | Effective capacitance under DC bias and acoustic/mechanical behavior may vary; confirm height and soldering profile | Suitable when TDK is already qualified in the BOM or when multi-source supply is required |
| KEMET |
C1812C105K1RACTU
KEMET
CAP CER 1UF 100V X7R 1812
52814
| 1µF, ±10%, 100V, X7R, 1812 MLCC | Commercial-grade ceramic capacitor; common C-series ordering format | General-purpose filtering, power rail stabilization, automotive-adjacent non-qualified designs, industrial electronics | Same nominal capacitance, dielectric class, voltage rating, and package footprint category | Not equivalent to medical-designated MLAS positioning; capacitance aging and voltage coefficient should be checked against circuit tolerance | Practical alternative for cost-sensitive or general industrial assemblies after electrical validation |
| Samsung Electro-Mechanics | CL43B105KCU5PNC | 1µF, ±10%, 100V, X7R, 1812 MLCC | High-volume MLCC platform; often competitive availability | Consumer-industrial hybrid equipment, power input filtering, board-level decoupling | Provides the same basic MLCC specification set for replacing a 1µF 100V X7R 1812 capacitor | Manufacturer-specific DC bias curve and mechanical robustness may differ; confirm exact thickness and termination code | Useful where procurement flexibility and high-volume supply options are priorities |
| KYOCERA AVX |
18121C105KAT2A
KYOCERA AVX
CAP CER 1UF 100V X7R 1812
2000000
| 1µF, ±10%, 100V, X7R, 1812 MLCC | Widely used 1812 MLCC format; common alternative in established BOMs | Filtering, bypassing, instrumentation, power conversion support circuits | Matches the main replacement requirements: capacitance, tolerance, voltage, dielectric, and case size | May have different package height, capacitance retention, and reflow recommendations than Taiyo Yuden MLASH45MSB7105KTNA01 | Appropriate for legacy designs, second-source planning, and assemblies already using KYOCERA AVX capacitors |
From an engineering perspective, Taiyo Yuden
HMK432B7105KMHT
is the closest candidate when manufacturer continuity is preferred. Murata GRM43DR72A105KA01L and TDK
HMK432B7105KMHT
Taiyo Yuden
CAP CER 1UF 100V X7R 1812
97807
C4532X7R2A105K230KA
are strong second-source options where detailed datasheet curves and broad market availability support qualification. KEMET
C4532X7R2A105K230KA
TDK Corporation
CAP CER 1UF 100V X7R 1812
200000
C1812C105K1RACTU
, Samsung CL43B105KCU5PNC, and KYOCERA AVX
C1812C105K1RACTU
KEMET
CAP CER 1UF 100V X7R 1812
52814
18121C105KAT2A
are useful alternatives when supply continuity, pricing, or approved vendor list constraints drive the replacement strategy.
18121C105KAT2A
KYOCERA AVX
CAP CER 1UF 100V X7R 1812
2000000
Practical Replacement Comparison for Taiyo Yuden MLASH45MSB7105KTNA01 Equivalents
Selecting among MLASH45MSB7105KTNA01 replacement parts requires comparing how each candidate behaves in the actual circuit. Nominal ratings are the starting point, but the final choice should account for voltage derating, capacitance loss under bias, solder-joint reliability, PCB stress, and production availability.
| Replacement Part Number | Electrical Compatibility | Mechanical Compatibility | Performance Considerations | Reliability and Qualification Factors | Package / Supply Availability | Cost Considerations | Advantages | Limitations | Best-Fit Scenario |
|---|---|---|---|---|---|---|---|---|---|
| Taiyo Yuden HMK432B7105KMHT | Closest match to 1µF, ±10%, 100V, X7R requirements | Same 1812 / 4532 package class; verify thickness and land pattern | Likely familiar behavior for designs already using Taiyo Yuden MLCCs, but DC bias curve still needs confirmation | Same manufacturer may simplify supplier qualification, though series designation differs from MLAS | Availability depends on distributor stock and lifecycle status | Often moderate; pricing depends on volume and market allocation | Strongest same-brand replacement candidate | May not duplicate MLAS medical non-critical positioning | Preferred when minimizing manufacturer change is the main goal |
| Murata GRM43DR72A105KA01L | Strong electrical match for capacitance, voltage, dielectric, and tolerance | 1812 footprint compatible in most layouts; confirm height clearance | Murata data often supports effective capacitance and impedance evaluation | Widely accepted commercial MLCC supplier; qualification data is typically accessible | Usually strong global availability | May command a premium during tight MLCC supply cycles | Good documentation and sourcing confidence | Not identical in construction or voltage coefficient | Suitable for designs requiring a well-documented second source |
| TDK C4532X7R2A105K230KA | Electrically aligned with the original capacitor class | C4532 maps to 1812 metric footprint; height should be checked | Good fit for decoupling and filtering, with manufacturer-specific impedance behavior | Established MLCC platform; useful for production-grade alternatives | Broad industrial distribution | Generally competitive depending on contract sourcing | Balanced technical and procurement profile | Bias performance may differ from Taiyo Yuden | Suitable for power and industrial boards needing second-source resilience |
| KEMET C1812C105K1RACTU | Matches nominal 1µF, 100V, X7R, ±10% target | Standard 1812 case compatibility; verify solder fillet and thickness | Good for general-purpose capacitance replacement after validation | Commercial-grade use; check application qualification requirements | Commonly available through multiple channels | Often attractive for cost-controlled BOMs | Practical, familiar 1812 replacement | May require closer validation for medical-related or stress-sensitive designs | Good for non-critical filtering and decoupling where cost and availability matter |
| Samsung CL43B105KCU5PNC | Meets the main electrical replacement envelope | CL43 corresponds to 1812 size class; check mechanical drawing | Effective capacitance and ESR/ESL behavior should be verified under operating voltage | High-volume MLCC source; suitable for multi-vendor sourcing plans | Often favorable for volume procurement | Can be cost-effective at production volumes | Strong supply-chain flexibility | Application qualification data may vary by distributor access | Best for high-volume builds needing another approved MLCC source |
| KYOCERA AVX 18121C105KAT2A | Nominal electrical match for 1µF, 100V, X7R, ±10% | 1812 case; verify maximum thickness and assembly process limits | Good alternative where AVX parts are already used; validate capacitance retention | Established supplier; useful for legacy and multi-source BOMs | Availability can vary by region and suffix | Pricing depends on series demand and stock position | Useful for legacy BOM substitution | Not a same-series or same-manufacturer equivalent | Suitable for maintenance builds and approved-vendor flexibility |
For low-voltage decoupling on a 12V or 24V rail, several candidates may perform acceptably after confirming effective capacitance. For circuits operating closer to the 100V rating, derating becomes more influential, and the replacement should be reviewed using DC bias curves, ripple current environment, and thermal conditions. In mechanically stressed areas, matching electrical values is not enough; board flexure, solder pad geometry, and capacitor orientation should be checked before approving a substitute.
If the original MLASH45MSB7105KTNA01 was selected for a medical non-critical design, replacement approval should also include traceability, compliance documents, and supplier quality review. For quotations and sourcing support for MLASH45MSB7105KTNA01 replacement parts such as
HMK432B7105KMHT
, GRM43DR72A105KA01L,
HMK432B7105KMHT
Taiyo Yuden
CAP CER 1UF 100V X7R 1812
97807
C4532X7R2A105K230KA
,
C4532X7R2A105K230KA
TDK Corporation
CAP CER 1UF 100V X7R 1812
200000
C1812C105K1RACTU
, CL43B105KCU5PNC, and
C1812C105K1RACTU
KEMET
CAP CER 1UF 100V X7R 1812
52814
18121C105KAT2A
, obtain quotations through IC-Components.com or email Info@IC-Components.com.
18121C105KAT2A
KYOCERA AVX
CAP CER 1UF 100V X7R 1812
2000000
