F931C686MCC Equivalent & Substitute Parts

Part Overview

The F931C686MCC is a 68 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 16 V operation. This component is designed for surface mount applications in the 2312 (6032 Metric) package format. The part is currently in active production status with 855 units available in stock. Equivalent and substitute parts are identified when they share the same electrical ratings (capacitance, voltage, tolerance) and compatible physical dimensions, enabling direct replacement in circuit designs without functional compromise.

Substiute Parts

F931C686MCC

KYOCERA AVXIn Stock: 868F931C686MCC Datasheet

Current PartRFQ

TMCMC1C686MTRF

Vishay SpragueIn Stock: 1154TMCMC1C686MTRF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the F931C686MCC are identified based on the following critical parameters:

• Capacitance value: 68 µF (exact match required)
• Voltage rating: 16 V (exact match required)
• Tolerance: ±20% (exact match required)
• Mounting type: Surface Mount (exact match required)
• Operating temperature range: -55°C to 125°C (exact match or better required)
• RoHS and environmental compliance: ROHS3 Compliant, REACH Unaffected (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Physical dimensions and package compatibility are evaluated to ensure mechanical fit within the PCB layout. The TMCMC1C686MTRF from Vishay Sprague meets all electrical and compliance requirements for substitution.

Parameter Comparison

Engineering Selection Recommendations

Both the F931C686MCC and TMCMC1C686MTRF are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use. The electrical specifications—68 µF capacitance, 16 V rating, and ±20% tolerance—are identical between both parts, ensuring functional equivalence in circuit operation.

The primary difference is ESR (Equivalent Series Resistance): the F931C686MCC specifies 800 mOhm at 100 kHz, while the TMCMC1C686MTRF specifies 1.1 Ohm at 100 kHz. This difference may be relevant in applications where low impedance at high frequencies is critical. Physical dimensions are compatible, with the TMCMC1C686MTRF being 0.008" (0.20 mm) shorter in length, which presents no mechanical constraint for standard PCB layouts.

Selection between these parts should be based on availability, lead time, and specific ESR requirements for the application circuit.

Frequently Asked Questions (FAQ)

Q: Can the TMCMC1C686MTRF directly replace the F931C686MCC on a PCB?

A: Yes. Both parts share identical electrical ratings (68 µF, 16 V, ±20% tolerance), operating temperature range (-55°C to 125°C), and moisture sensitivity level (MSL 1). Physical dimensions are compatible, with the TMCMC1C686MTRF being slightly shorter in length (5.80 mm vs. 6.00 mm), which does not affect PCB footprint compatibility.

Q: What is the significance of the ESR difference between these parts?

A: The F931C686MCC has an ESR of 800 mOhm at 100 kHz, while the TMCMC1C686MTRF has an ESR of 1.1 Ohm at 100 kHz. ESR affects impedance characteristics at high frequencies. In applications where low impedance ripple filtering or high-frequency decoupling is required, the lower ESR of the F931C686MCC may be preferred. For general-purpose applications, both values are acceptable.

Q: Are both parts RoHS compliant?

A: Yes. Both the F931C686MCC and TMCMC1C686MTRF are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

Q: What is Moisture Sensitivity Level 1?

A: MSL 1 indicates unlimited moisture sensitivity, meaning the component can be stored and handled without moisture-related precautions. No special drying or baking procedures are required before soldering.

Q: Are there any package differences between these parts?

A: The F931C686MCC is specified as 2312 (6032 Metric) package, while the TMCMC1C686MTRF is listed as nonstandard package. However, physical dimensions are compatible: both measure 0.126" (3.20 mm) in width and 0.106" (2.70 mm) in height, with only a 0.008" (0.20 mm) difference in length. This dimensional compatibility ensures PCB footprint compatibility.