MSASH45MSB5155KTNA01 Equivalent & Substitute Parts

Part Overview

The MSASH45MSB5155KTNA01 is a 1.5 µF ceramic capacitor rated at 100V with X5R temperature coefficient, manufactured by Taiyo Yuden in 1812 (4532 Metric) package format. This multilayer ceramic capacitor (MLCC) is designed for surface mount applications, particularly in SMPS filtering circuits. The part is currently Active in product status with 916 units in stock. Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design revisions require alternative qualified components that maintain electrical and mechanical compatibility.

Substiute Parts

MSASH45MSB5155KTNA01

Taiyo YudenIn Stock: 978MSASH45MSB5155KTNA01 Datasheet

Current PartRFQ

HMK432BJ155KM-T

Taiyo YudenIn Stock: 1629HMK432BJ155KM-T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MSASH45MSB5155KTNA01 is determined by strict equivalence across the following parameters:

Critical Electrical Parameters: Capacitance value (1.5 µF), tolerance (±10%), voltage rating (100V), and temperature coefficient (X5R) must be identical. These parameters define the functional performance in SMPS filtering applications.

Critical Mechanical Parameters: Package type (1812 / 4532 Metric), mounting method (Surface Mount, MLCC), and physical dimensions (0.177" L x 0.126" W, 0.106" max thickness) must match to ensure PCB compatibility and assembly process compatibility.

Environmental & Compliance Parameters: Moisture Sensitivity Level (MSL 1), RoHS3 compliance, and REACH unaffected status must be maintained to satisfy manufacturing and regulatory requirements.

The substitute part HMK432BJ155KM-T meets all these criteria and is therefore a valid parametric equivalent, despite its "Not For New Designs" product status.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: MSASH45MSB5155KTNA01

The MSASH45MSB5155KTNA01 is the recommended choice for new designs. This part carries Active product status, indicating ongoing manufacturer support and availability. With 916 units in current stock, supply continuity is established. Full ROHS3 compliance and REACH unaffected status satisfy regulatory requirements for commercial and industrial applications.

Substitute Selection: HMK432BJ155KM-T

The HMK432BJ155KM-T is a parametric equivalent suitable for existing designs or legacy system support. All electrical, mechanical, and environmental specifications are identical to the primary part. However, this part is designated "Not For New Designs," indicating it is in mature or end-of-life phase. Use of this substitute is appropriate only when:

The primary part is unavailable or discontinued Existing designs require component replacement Supply chain constraints necessitate alternative sourcing

Both parts are manufactured by Taiyo Yuden and share identical compliance certifications (ROHS3, REACH unaffected). Selection between these parts should be based on product lifecycle requirements and availability status rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can HMK432BJ155KM-T be used as a direct replacement for MSASH45MSB5155KTNA01 in existing assemblies?

A: Yes. All electrical parameters (capacitance, voltage, tolerance, temperature coefficient), mechanical dimensions, and environmental specifications are identical. Both parts use the same 1812 (4532 Metric) package and surface mount configuration. Direct substitution is electrically and mechanically compatible.

Q: Why is HMK432BJ155KM-T marked "Not For New Designs"?

A: This designation indicates the part is in mature or end-of-life phase. The manufacturer continues to support existing designs but does not recommend this part for new product development. New designs should use MSASH45MSB5155KTNA01, which carries Active status.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant and REACH unaffected. Moisture Sensitivity Level is identical (MSL 1, Unlimited). Regulatory and environmental compliance requirements are fully satisfied by either part.

Q: What is the significance of the 1812 (4532 Metric) package designation?

A: This indicates the physical footprint and dimensions of the ceramic capacitor. The 1812 package measures 0.177" L x 0.126" W (4.50mm x 3.20mm) with maximum thickness of 0.106" (2.70mm). Both substitute parts use this identical package, ensuring PCB layout and assembly process compatibility.

Q: Can these parts be used interchangeably in SMPS filtering applications?

A: Yes. Both parts are specified for SMPS filtering applications with identical electrical ratings (1.5 µF, 100V, X5R temperature coefficient). Operating temperature range (-55°C ~ 85°C) and tolerance (±10%) are identical, supporting equivalent performance in switching power supply circuits.

Q: What inventory considerations should guide part selection?

A: MSASH45MSB5155KTNA01 has 916 units in stock with Active status, providing immediate availability and long-term supply assurance. HMK432BJ155KM-T has 1556 units available but carries "Not For New Designs" status, indicating limited future availability. For new designs, prioritize MSASH45MSB5155KTNA01. For legacy system support or emergency replacement, HMK432BJ155KM-T is available.