F981A336MSA Equivalent & Substitute Parts

Part Overview

The F981A336MSA is a 33 µF molded tantalum capacitor rated at 10 V in 0805 (2012 Metric) surface mount package, manufactured by KYOCERA AVX. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Finding equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to active product lines where applicable.

Substiute Parts

F981A336MSA

KYOCERA AVXIn Stock: 2037F981A336MSA Datasheet

Current PartRFQ

TCTP1A336M8R

KYOCERA AVXIn Stock: 4462TCTP1A336M8R Datasheet

MFR RecommendedRFQ

TCTP1A336M8R-E2

KYOCERA AVXIn Stock: 4450TCTP1A336M8R-E2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the F981A336MSA is determined by strict equivalence across the following electrical and mechanical parameters:

• Capacitance value: 33 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage rating: 10 V (exact match required)
• Package: 0805 (2012 Metric) surface mount (exact match required)
• Operating temperature range: -55°C ~ 125°C (exact match required)
• Type: Molded tantalum (exact match required)

The substitute parts TCTP1A336M8R and TCTP1A336M8R-E2 meet all these criteria. Both are from the active TCT series and provide direct functional equivalence to the F981A336MSA. The primary differences between substitutes relate to packaging format (Tape & Reel versus Bulk) and moisture sensitivity level (MSL 1 versus MSL 3), which do not affect electrical performance or core compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both TCTP1A336M8R and TCTP1A336M8R-E2 are direct functional equivalents to the F981A336MSA. Selection between them depends on procurement and assembly requirements:

TCTP1A336M8R is supplied in Tape & Reel packaging, suitable for automated assembly processes. TCTP1A336M8R-E2 is supplied in Bulk packaging, suitable for manual assembly or alternative handling methods.

Both substitute parts carry Active product status, indicating ongoing manufacturer support and availability. Both maintain ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the original part. The improved moisture sensitivity level (MSL 1 versus MSL 3) on the substitute parts provides enhanced reliability under humid storage and handling conditions.

The maximum seated height increases from 0.035" (0.90mm) to 0.047" (1.20mm) on substitute parts. This dimensional change must be evaluated against PCB layout constraints and clearance requirements in the target application.

Frequently Asked Questions (FAQ)

Q: Are TCTP1A336M8R and TCTP1A336M8R-E2 electrically identical to F981A336MSA?

A: Yes. Both substitute parts match the F981A336MSA across all specified electrical parameters: 33 µF capacitance, ±20% tolerance, 10 V rating, molded tantalum type, and -55°C to 125°C operating range.

Q: What is the difference between TCTP1A336M8R and TCTP1A336M8R-E2?

A: The primary difference is packaging format. TCTP1A336M8R is supplied in Tape & Reel format for automated assembly. TCTP1A336M8R-E2 is supplied in Bulk format. Electrically and mechanically, they are identical.

Q: Does the increased height of substitute parts affect PCB compatibility?

A: The substitute parts have a maximum seated height of 0.047" (1.20mm) compared to 0.035" (0.90mm) for the original part. PCB layout and component clearance must be evaluated to ensure this 0.012" (0.30mm) increase does not create conflicts with adjacent components or enclosure constraints.

Q: Why is the F981A336MSA marked "Not For New Designs"?

A: This designation indicates the part has been superseded by newer alternatives in the manufacturer's product line. TCTP1A336M8R and TCTP1A336M8R-E2 are the active replacements and are recommended for new designs.

Q: Are the substitute parts RoHS and REACH compliant?

A: Yes. Both TCTP1A336M8R and TCTP1A336M8R-E2 are ROHS3 compliant and REACH unaffected, matching the compliance profile of the F981A336MSA.

Q: What does MSL 1 mean compared to MSL 3?

A: MSL (Moisture Sensitivity Level) indicates the component's sensitivity to moisture during storage and handling. MSL 1 (Unlimited) means the part has no time restrictions for storage in standard conditions. MSL 3 (168 Hours) means the part must be used within 168 hours of opening the moisture barrier bag. The substitute parts' improved MSL rating provides greater flexibility in inventory management and handling.