F981A475MMA Equivalent & Substitute Parts

Part Overview

The F981A475MMA is a 4.7 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 10 V operation in a 0603 (1608 Metric) surface mount package. This part is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Equivalent and substitute parts are necessary to support existing designs, provide design flexibility, and ensure supply chain continuity with active product alternatives.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Tolerance	±20%
Voltage Rating	10 V
Package / Case	0603 (1608 Metric)
Type	Molded Tantalum
ESR	6 Ohm
Operating Temperature Range	-55°C to 125°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Primary Substitution Criteria (Must Match):

Capacitance: 4.7 µF
Voltage Rating: 10 V or higher
Package / Case: 0603 (1608 Metric)
Type: Molded Tantalum
Operating Temperature Range: -55°C to 125°C minimum
Mounting Type: Surface Mount
RoHS3 Compliance

Secondary Compatibility Parameters (Allowable Variation):

Tolerance: ±20% or tighter (±10% acceptable)
ESR: 6 Ohm (9 Ohm acceptable within electrical performance envelope)
MSL Rating: 1 (Unlimited) or 3 (168 Hours)
Packaging Format: Cut Tape (CT), Tape & Reel (TR), or Bulk

Substitute parts are grouped into two categories: direct equivalents (identical electrical and mechanical specifications) and compatible alternatives (meet or exceed all critical parameters with minor variations in tolerance or ESR).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	ESR	Package	Height (Max)	MSL	Product Status
F981A475MMA	KYOCERA AVX	4.7 µF	±20%	10 V	6 Ohm	0603	0.035" (0.90mm)	3	Not For New Designs
TACL475K010R	KYOCERA AVX	4.7 µF	±10%	10 V	6 Ohm	0603	0.039" (1.00mm)	1	Active
TACL475M010ATA	KYOCERA AVX	4.7 µF	±20%	10 V	6 Ohm	0603	0.039" (1.00mm)	1	Active
TACL475M010FTA	KYOCERA AVX	4.7 µF	±20%	10 V	6 Ohm	0603	0.039" (1.00mm)	1	Active
TACL475M010RTA	KYOCERA AVX	4.7 µF	±20%	10 V	6 Ohm	0603	0.039" (1.00mm)	1	Active
TACL475M010XTA	KYOCERA AVX	4.7 µF	±20%	10 V	6 Ohm	0603	0.039" (1.00mm)	1	Active
TACL475M010XTX	KYOCERA AVX	4.7 µF	±20%	10 V	6 Ohm	0603	0.039" (1.00mm)	1	Active
TCM1A475M8R	KYOCERA AVX	4.7 µF	±20%	10 V	9 Ohm	0603	0.035" (0.90mm)	1	Active
TCM1A475M8R-E1	KYOCERA AVX	4.7 µF	±20%	10 V	Not Specified	0603	Not Specified	1	Active
298D475X0016M2T	Vishay Sprague	4.7 µF	±20%	16 V	6 Ohm	0603	0.031" (0.80mm)	1	Active
TM8M475K010UBA	Vishay Sprague	4.7 µF	±10%	10 V	6 Ohm	0603	0.039" (0.99mm)	1	Active

Engineering Selection Recommendations

KYOCERA AVX Direct Equivalents (Preferred for F981A475MMA Replacement):

TACL475M010ATA, TACL475M010FTA, TACL475M010RTA, and TACL475M010XTA are direct functional equivalents with identical electrical specifications (4.7 µF, ±20%, 10 V, 6 Ohm ESR). All are Active products with ROHS3 compliance and MSL 1 rating, providing superior moisture handling compared to the original part. These parts differ only in packaging format (Tape & Reel or Cut Tape) and are suitable for direct substitution in existing designs.

TACL475K010R (Tighter Tolerance Alternative):

This KYOCERA AVX part maintains all critical parameters but offers ±10% tolerance instead of ±20%, providing improved capacitance accuracy. It is Active with MSL 1 rating and suitable where tighter tolerance specifications are required.

TCM1A475M8R (Manufacturer Recommended Alternative):

This KYOCERA AVX part is the manufacturer's recommended upgrade path. It maintains 4.7 µF, ±20%, 10 V specifications with 9 Ohm ESR (versus 6 Ohm). The slightly higher ESR remains within acceptable operating parameters for general-purpose applications. MSL 1 rating and Active status support long-term supply continuity.

Cross-Manufacturer Alternatives:

298D475X0016M2T (Vishay Sprague) provides 4.7 µF, ±20%, 6 Ohm ESR in 0603 package with 16 V rating, offering voltage margin above the 10 V requirement. TM8M475K010UBA (Vishay Sprague) matches 10 V rating with ±10% tolerance and 6 Ohm ESR. Both are Active products with ROHS3 compliance and MSL 1 rating.

Selection Basis:

All recommended substitutes meet or exceed the original part's electrical performance envelope, maintain 0603 package compatibility, support the full -55°C to 125°C operating range, and carry ROHS3 compliance. Product status (Active) ensures ongoing availability and supply chain support.

Frequently Asked Questions (FAQ)

Q: Can TACL475M010ATA directly replace F981A475MMA in existing PCB designs?

A: Yes. TACL475M010ATA is electrically and mechanically equivalent with identical capacitance (4.7 µF), tolerance (±20%), voltage rating (10 V), ESR (6 Ohm), and 0603 package footprint. The only difference is improved MSL rating (1 versus 3) and slightly increased seated height (1.00mm versus 0.90mm). Verify PCB clearance for the 0.10mm height increase.

Q: What is the difference between TACL475M010RTA and TACL475M010XTA?

A: Both parts are electrically identical (4.7 µF, ±20%, 10 V, 6 Ohm ESR, 0603 package, MSL 1). The difference is packaging format: TACL475M010RTA is supplied in Cut Tape (CT) & Digi-Reel format, while TACL475M010XTA is supplied in Tape & Reel (TR) format. Select based on assembly line requirements.

Q: Why does TCM1A475M8R have 9 Ohm ESR instead of 6 Ohm?

A: TCM1A475M8R is from KYOCERA AVX's TC series with slightly higher ESR specification. The 9 Ohm ESR remains within acceptable limits for general-purpose tantalum capacitor applications and does not compromise circuit performance in standard filtering and decoupling roles. This part is the manufacturer's recommended upgrade path for F981A475MMA.

Q: Can I use 298D475X0016M2T (16 V rated) instead of a 10 V part?

A: Yes. 298D475X0016M2T meets all substitution criteria with identical capacitance (4.7 µF), tolerance (±20%), ESR (6 Ohm), and 0603 package. The 16 V rating exceeds the 10 V requirement, providing voltage margin. This is a valid cross-manufacturer alternative from Vishay Sprague.

Q: What does MSL 1 (Unlimited) mean compared to MSL 3 (168 Hours)?

A: MSL (Moisture Sensitivity Level) indicates how long a component can be exposed to moisture before soldering. MSL 1 (Unlimited) allows indefinite shelf storage without baking, while MSL 3 (168 Hours) requires baking if storage exceeds 168 hours in high-humidity conditions. All substitute parts carry MSL 1, simplifying inventory and assembly logistics.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the original F981A475MMA specification. All parts are also REACH Unaffected and classified as EAR99 for export purposes.

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