F951C336MBAAQ2 Equivalent & Substitute Parts

Part Overview

The F951C336MBAAQ2 is a 33 µF conformal coated tantalum capacitor rated at 16 V with ±20% tolerance, manufactured by KYOCERA AVX in the 1411 (3528 Metric) package. This component is designed for surface mount applications requiring general-purpose energy storage with conformal coating protection. The part is currently active in production with 2060 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter ranges for tantalum capacitor applications.

Substiute Parts

F951C336MBAAQ2

KYOCERA AVXIn Stock: 2121F951C336MBAAQ2 Datasheet

Current PartRFQ

TPSB336K016R0500

KYOCERA AVXIn Stock: 4637TPSB336K016R0500 Datasheet

DirectRFQ

TPSB336M016R0500

KYOCERA AVXIn Stock: 25335TPSB336M016R0500 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the F951C336MBAAQ2 are qualified based on the following criteria:

• Identical capacitance value: 33 µF
• Identical voltage rating: 16 V
• Identical ESR: 500 mOhm
• Identical package: 1411 (3528 Metric)
• Identical mounting type: Surface Mount
• Identical operating temperature range: -55°C to 125°C
• Identical RoHS compliance: ROHS3 Compliant

Tolerance variations (±20% to ±10%) and coating type differences (conformal coated to molded) are permitted substitutions when the application circuit design accommodates the tolerance specification. Both substitute parts are manufactured by KYOCERA AVX from the TPS series and maintain full electrical and mechanical compatibility with the original part.

Parameter Comparison

Engineering Selection Recommendations

Both TPSB336K016R0500 and TPSB336M016R0500 are direct substitutes for the F951C336MBAAQ2 based on electrical and mechanical equivalence. Selection between these options depends on application-specific requirements:

TPSB336M016R0500 is the preferred substitute when tolerance specification of ±20% is acceptable, as it maintains identical tolerance to the original part and offers the highest inventory availability (25300 units). This part is suitable for applications where capacitance variation within ±20% does not impact circuit performance.

TPSB336K016R0500 provides tighter tolerance control at ±10%, making it suitable for applications requiring more precise capacitance values. Inventory availability is 4590 units.

Both substitute parts feature improved moisture sensitivity (MSL 1 vs. MSL 3) compared to the original conformal coated design, reducing handling and storage requirements. All three parts maintain ROHS3 compliance and identical operating temperature specifications. The maximum seated height difference of 0.004" (0.10mm) between the original and substitute parts is negligible for standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can TPSB336K016R0500 and TPSB336M016R0500 be used interchangeably with F951C336MBAAQ2?

A: Yes, both parts are direct electrical and mechanical substitutes. The primary difference is tolerance specification (±10% vs. ±20%) and coating type (molded vs. conformal coated). Circuit design must accommodate the tolerance range of the selected substitute.

Q: What is the significance of the tolerance difference between ±20% and ±10%?

A: Tolerance defines the acceptable capacitance variation from the nominal 33 µF value. A ±20% tolerance allows capacitance between 26.4 µF and 39.6 µF. A ±10% tolerance allows capacitance between 29.7 µF and 36.3 µF. Applications sensitive to capacitance variation should specify the ±10% part.

Q: Does the conformal coating difference affect substitution compatibility?

A: The conformal coated F951C336MBAAQ2 and molded TPS substitutes are electrically equivalent. Conformal coating provides additional environmental protection in specific applications. Molded construction offers improved moisture sensitivity characteristics (MSL 1 vs. MSL 3), reducing storage and handling constraints.

Q: Are there any PCB layout considerations for the height difference?

A: The maximum seated height difference is 0.004" (0.10mm) between the original and substitute parts. This difference is within standard PCB assembly tolerances and does not require layout modifications for typical applications.

Q: What is the MSL (Moisture Sensitivity Level) difference, and does it matter?

A: MSL 3 (original part) requires storage at controlled humidity for 168 hours before reflow soldering. MSL 1 (substitute parts) has unlimited shelf life without moisture control requirements. Substitute parts offer simplified inventory and handling procedures.

Q: Are all three parts ROHS3 compliant?

A: Yes, F951C336MBAAQ2, TPSB336K016R0500, and TPSB336M016R0500 are all ROHS3 compliant and suitable for applications requiring RoHS certification.