MLASE105SC6105MFNA01 Equivalent & Substitute Parts

Part Overview

The MLASE105SC6105MFNA01 is a 1 µF ceramic capacitor manufactured by Taiyo Yuden, rated for 16V operation with X6S temperature coefficient characteristics. This surface-mount multilayer ceramic capacitor (MLCC) in 0402 (1005 Metric) package is designed for medical and non-critical applications. The part is currently in active production status with 928 units available in inventory.

Substitute parts become necessary when the primary manufacturer part reaches end-of-life status, inventory constraints occur, or design flexibility is required across multiple qualified suppliers. The substitute identified maintains electrical and mechanical compatibility while meeting equivalent performance specifications.

Substiute Parts

MLASE105SC6105MFNA01
Taiyo YudenIn Stock: 984MLASE105SC6105MFNA01 Datasheet
MLASE105SC6105MFNA01
Current Part
C1005X6S1C105M050BC
TDK CorporationIn Stock: 1168C1005X6S1C105M050BC Datasheet
C1005X6S1C105M050BC
Parametric Equivalent

Key Parameters

Parameter Value Significance for Substitution
Capacitance 1 µF Core electrical specification; must match exactly
Voltage Rating 16V Maximum operating voltage; must not be lower
Tolerance ±20% Capacitance accuracy; must match or be tighter
Temperature Coefficient X6S Capacitance stability across temperature range; must match
Operating Temperature Range -55°C ~ 105°C Functional temperature limits; must match or exceed
Package / Case 0402 (1005 Metric) Physical footprint and PCB compatibility; must match exactly
Mounting Type Surface Mount, MLCC Assembly process compatibility; must match
Thickness (Max) 0.022" (0.55mm) PCB clearance and assembly constraints; must not exceed
RoHS Status ROHS3 Compliant Regulatory compliance requirement; must match
Moisture Sensitivity Level (MSL) 1 (Unlimited) Storage and handling requirements; must match or be lower risk

Substitute Part Grouping Explanation

Substitution logic for the MLASE105SC6105MFNA01 is based on strict electrical and mechanical parameter matching. The following criteria determine valid equivalency:

Mandatory Matching Parameters:

  • Capacitance value: 1 µF (exact match required)
  • Voltage rating: 16V (minimum; higher ratings acceptable)
  • Tolerance: ±20% (tighter tolerances acceptable)
  • Temperature coefficient: X6S (exact match required for temperature stability)
  • Operating temperature range: -55°C ~ 105°C (must meet or exceed)
  • Package: 0402 (1005 Metric) (exact match required for PCB compatibility)
  • Mounting type: Surface Mount, MLCC (exact match required)
  • Thickness: 0.022" (0.55mm) maximum (must not exceed)
  • RoHS compliance: ROHS3 (regulatory requirement)
  • MSL rating: 1 (Unlimited) (must match or be lower risk)

The identified substitute part C1005X6S1C105M050BC from TDK Corporation meets all mandatory parameters and is therefore classified as a parametric equivalent.

Parameter Comparison

Parameter MLASE105SC6105MFNA01 (Taiyo Yuden) C1005X6S1C105M050BC (TDK Corporation) Match Status
Capacitance 1 µF 1 µF Exact Match
Voltage Rating 16V 16V Exact Match
Tolerance ±20% ±20% Exact Match
Temperature Coefficient X6S X6S Exact Match
Operating Temperature Range -55°C ~ 105°C -55°C ~ 105°C Exact Match
Package / Case 0402 (1005 Metric) 0402 (1005 Metric) Exact Match
Mounting Type Surface Mount, MLCC Surface Mount, MLCC Exact Match
Size / Dimension 0.039" L x 0.020" W (1.00mm x 0.50mm) 0.039" L x 0.020" W (1.00mm x 0.50mm) Exact Match
Thickness (Max) 0.022" (0.55mm) 0.022" (0.55mm) Exact Match
RoHS Status ROHS3 Compliant ROHS3 Compliant Exact Match
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited) Exact Match
REACH Status REACH Unaffected REACH Unaffected Exact Match
ECCN EAR99 EAR99 Exact Match

Engineering Selection Recommendations

Primary Part: MLASE105SC6105MFNA01 (Taiyo Yuden)

The MLASE105SC6105MFNA01 is recommended as the primary selection. This part maintains active production status, ensuring long-term availability and supply chain stability. The part is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. With 928 units in current inventory, immediate procurement is feasible for production requirements.

Substitute Part: C1005X6S1C105M050BC (TDK Corporation)

The C1005X6S1C105M050BC is qualified as a direct parametric equivalent. All electrical specifications, mechanical dimensions, and regulatory certifications match the primary part exactly. However, this part carries a "Not For New Designs" product status designation, indicating that TDK has discontinued active development for this specific model number. This status does not affect functional compatibility but indicates that long-term availability may be limited.

The C1005X6S1C105M050BC is suitable for:

  • Replacement in existing production runs where supply of the primary part is constrained
  • Retrofit applications in field service scenarios
  • Inventory supplementation when primary part allocation is insufficient

Selection Criteria:

Use MLASE105SC6105MFNA01 for new designs and long-term production programs. Use C1005X6S1C105M050BC only when primary part availability is insufficient or when existing inventory of the substitute part is available for immediate deployment.

Frequently Asked Questions (FAQ)

Q: Can C1005X6S1C105M050BC be used as a direct replacement for MLASE105SC6105MFNA01 on the PCB?

A: Yes. Both parts are identical in electrical specifications (1 µF, 16V, X6S, ±20% tolerance), physical dimensions (0402 / 1005 Metric package, 0.022" maximum thickness), and mounting type (surface mount MLCC). No PCB layout modifications are required.

Q: What does "Not For New Designs" status mean for the TDK substitute part?

A: This designation indicates that TDK has transitioned this part number to end-of-life status and is not recommending it for incorporation into new product designs. However, the part remains functionally equivalent and is suitable for replacement in existing applications or when primary part supply is constrained.

Q: Are there any differences in performance characteristics between the two parts?

A: No. Both parts operate across the identical temperature range (-55°C ~ 105°C), maintain the same X6S temperature coefficient, and carry equivalent regulatory certifications (ROHS3, REACH Unaffected, EAR99). The TDK part includes a "Low ESL" feature designation, which is a beneficial characteristic that does not affect substitution compatibility.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 indicates the lowest moisture sensitivity level. Both parts can be stored indefinitely without moisture bake-out requirements prior to soldering, simplifying inventory management and reducing production constraints.

Q: Can the substitute part be used in medical applications?

A: The primary part (MLASE105SC6105MFNA01) is specified for medical and non-critical applications. The substitute part (C1005X6S1C105M050BC) is specified for general purpose applications. Application suitability depends on specific medical device classification and regulatory pathway requirements, which are outside the scope of electrical and mechanical parameter equivalency.

Q: Are there any packaging differences between the two parts?

A: Both parts are supplied in Tape & Reel (TR) packaging format, standard for surface-mount component distribution. No packaging conversion is required for assembly operations.

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