F981C105MMA Equivalent & Substitute Parts

Part Overview

The F981C105MMA is a 1 µF molded tantalum capacitor rated at 16 V in 0603 (1608 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 This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line.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 maintain design continuity, ensure supply chain availability, and transition to active product status alternatives that meet the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	1 µF
Tolerance	±20%
Voltage Rating	16 V
Type	Molded Tantalum
Package / Case	0603 (1608 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the F981C105MMA is determined by strict equivalence across the following parameters:

Capacitance Value: 1 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 16 V (exact match required)
Package / Case: 0603 (1608 Metric) (exact match required)
Mounting Type: Surface Mount (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)
Type: Molded Tantalum (exact match required)
RoHS Compliance: ROHS3 Compliant (required for regulatory compliance)

All substitute parts listed below meet these criteria. Variations in ESR (Equivalent Series Resistance), MSL (Moisture Sensitivity Level), and packaging format (Tape & Reel vs. Cut Tape vs. Bulk) do not affect functional substitutability but may impact procurement and handling requirements.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Package	ESR	MSL	Product Status	Packaging Format
F981C105MMA	KYOCERA AVX	1 µF	±20%	16 V	0603 (1608 Metric)	10 Ohm	3 (168 Hours)	Not For New Designs	Cut Tape (CT) & Digi-Reel®
TCM1C105M8R	KYOCERA AVX	1 µF	±20%	16 V	0603 (1608 Metric)	—	1 (Unlimited)	Active	Tape & Reel (TR)
TCM1C105M8R-02	KYOCERA AVX	1 µF	±20%	16 V	0603 (1608 Metric)	—	1 (Unlimited)	Active	Bulk
TR8M105M016C9500	Vishay Sprague	1 µF	±20%	16 V	0603 (1608 Metric)	9.5 Ohm	1 (Unlimited)	Active	Tape & Reel (TR)
298D105X0016M2T	Vishay Sprague	1 µF	±20%	16 V	0603 (1608 Metric)	12 Ohm	1 (Unlimited)	Active	Tape & Reel (TR)
TMCJ1C105MTRF	Vishay Sprague	1 µF	±20%	16 V	0603 (1608 Metric)	10 Ohm @ 100kHz	1 (Unlimited)	Active	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

KYOCERA AVX Alternatives: TCM1C105M8R and TCM1C105M8R-02 are direct manufacturer alternatives from KYOCERA AVX. Both are Active status products with improved MSL rating (1 vs. 3), indicating superior moisture resistance. TCM1C105M8R is supplied in Tape & Reel format for automated assembly, while TCM1C105M8R-02 is available in Bulk packaging for manual or alternative assembly processes.

Vishay Sprague Alternatives: TR8M105M016C9500, 298D105X0016M2T, and TMCJ1C105MTRF are cross-manufacturer substitutes from Vishay Sprague. All three are Active status products with MSL rating of 1. These parts maintain electrical equivalence while offering alternative supply sources. ESR values range from 9.5 Ohm to 12 Ohm, all within acceptable operating parameters for general-purpose tantalum capacitor applications. TMCJ1C105MTRF matches the original Cut Tape & Digi-Reel® packaging format.

All substitute parts maintain ROHS3 compliance and identical operating temperature range (-55°C ~ 125°C), ensuring regulatory and thermal compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can I substitute F981C105MMA with any of these parts without circuit redesign?

A: Yes. All listed substitute parts are electrically and mechanically equivalent. They share identical capacitance (1 µF), tolerance (±20%), voltage rating (16 V), package (0603), and operating temperature range (-55°C ~ 125°C). No circuit redesign is required.

Q: What is the difference between MSL 3 and MSL 1?

A: MSL (Moisture Sensitivity Level) indicates the component's sensitivity to moisture during storage and handling. MSL 3 allows 168 hours of exposure before reflow, while MSL 1 allows unlimited storage time. Substitute parts with MSL 1 offer superior shelf life and reduced risk of moisture-induced failures during assembly.

Q: Does ESR variation between substitute parts affect circuit performance?

A: ESR differences (9.5 Ohm to 12 Ohm) are minor and within acceptable ranges for general-purpose tantalum capacitor applications. Selection should be based on specific circuit requirements and available inventory. For applications with strict ESR requirements, verify the selected substitute against your design specifications.

Q: What packaging format should I choose?

A: Tape & Reel (TR) format is standard for automated surface mount assembly. Cut Tape (CT) & Digi-Reel® format is suitable for manual assembly or lower-volume production. Bulk packaging is used for non-automated processes. Choose based on your assembly method and production volume.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, matching the original F981C105MMA compliance status. This ensures regulatory compatibility for applications requiring RoHS certification.

Q: Why is F981C105MMA marked as Not For New Designs?

A: This designation indicates the part has been superseded by newer alternatives in the manufacturer's product line. For new designs, KYOCERA AVX recommends using TCM1C105M8R or TCM1C105M8R-02. Existing designs using F981C105MMA can continue operation, but new projects should transition to Active status alternatives.

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