F971C336MCC Equivalent & Substitute Parts

Part Overview

The F971C336MCC is a 33 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 16 V operation in a 2312 (6032 Metric) surface mount package. This component is designed for automotive and high-reliability applications with AEC-Q200 qualification. The part is currently in active production status with 1047 units available in stock.

Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Key Parameters

Parameter	Value	Unit
Capacitance	33	µF
Voltage Rating	16	V
Tolerance	±20%	-
Package / Case	2312 (6032 Metric)	-
Mounting Type	Surface Mount	-
ESR	1.1	Ohm
Operating Temperature Range	-55°C to 125°C	-
Type	Molded Tantalum	-

Substitute Part Grouping Explanation

Substitute parts for the F971C336MCC are qualified based on the following critical parameters:

Electrical Parameters (Must Match):

Capacitance: 33 µF
Voltage Rating: 16 V
Package / Case: 2312 (6032 Metric)
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 125°C

Allowable Variations:

Tolerance: ±20% or tighter (±10% acceptable)
ESR: Up to 1.2 Ohm (main part: 1.1 Ohm)
Manufacturer: Different manufacturers permitted if electrical and mechanical specifications align

Compliance Requirements:

RoHS3 Compliant
REACH Unaffected status

Two substitute parts meet these criteria: F971C336KCC (KYOCERA AVX, parametric equivalent with tighter tolerance) and T491C336M016AT (KEMET, direct equivalent with different ESR specification).

Parameter Comparison

Parameter	F971C336MCC (Main)	F971C336KCC (Substitute)	T491C336M016AT (Substitute)
Manufacturer	KYOCERA AVX	KYOCERA AVX	KEMET
Capacitance	33 µF	33 µF	33 µF
Voltage Rating	16 V	16 V	16 V
Tolerance	±20%	±10%	±20%
Package / Case	2312 (6032 Metric)	2312 (6032 Metric)	2312 (6032 Metric)
Size / Dimension	0.236" L x 0.126" W (6.00mm x 3.20mm)	0.236" L x 0.126" W (6.00mm x 3.20mm)	0.236" L x 0.126" W (6.00mm x 3.20mm)
Height - Seated (Max)	0.110" (2.80mm)	0.110" (2.80mm)	0.110" (2.80mm)
ESR	1.1 Ohm	1.1 Ohm	1.2 Ohm
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Type	Molded Tantalum	Molded Tantalum	Molded Tantalum
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)	3 (168 Hours)	1 (Unlimited)
Product Status	Active	Active	Active
Inventory Availability	1047 Pcs	1851 Pcs	1450 Pcs

Engineering Selection Recommendations

F971C336KCC (KYOCERA AVX): This substitute offers tighter capacitance tolerance (±10% versus ±20%), maintaining the same ESR specification and moisture sensitivity level as the main part. Both components share identical KYOCERA AVX manufacturing and AEC-Q200 automotive qualification. Selection of this part is appropriate when tighter capacitance tolerance is required within the same product family.

T491C336M016AT (KEMET): This substitute meets all critical electrical and mechanical parameters with a marginally higher ESR specification (1.2 Ohm versus 1.1 Ohm). The component features superior moisture sensitivity (MSL 1 versus MSL 3), reducing handling and storage constraints. KEMET T491 series tantalum capacitors are qualified for general-purpose applications with documented 2000-hour lifetime at 125°C. Selection of this part is appropriate for applications where extended moisture tolerance and documented thermal lifetime are beneficial.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the main component.

Frequently Asked Questions (FAQ)

Q: Can F971C336KCC be used as a direct replacement for F971C336MCC?

A: Yes. Both components share identical electrical ratings (33 µF, 16 V), package dimensions (2312 / 6032 Metric), ESR (1.1 Ohm), and operating temperature range (-55°C to 125°C). The F971C336KCC features tighter capacitance tolerance (±10% versus ±20%), which is a functional improvement. Both parts carry AEC-Q200 qualification and ROHS3 compliance.

Q: What is the difference between F971C336KCC and T491C336M016AT?

A: Both parts meet the core electrical specifications (33 µF, 16 V, 2312 package). Key differences are: (1) Manufacturer: KYOCERA AVX versus KEMET; (2) ESR: 1.1 Ohm versus 1.2 Ohm; (3) Moisture Sensitivity: MSL 3 versus MSL 1; (4) Thermal Lifetime: Not specified versus 2000 hours at 125°C. The T491C336M016AT provides superior moisture handling and documented thermal performance.

Q: Is the ESR difference between 1.1 Ohm and 1.2 Ohm significant?

A: The 0.1 Ohm difference represents approximately 9% variation. Significance depends on circuit requirements. In applications sensitive to ripple current dissipation or thermal performance, this difference may be relevant. In general-purpose filtering applications, both specifications are functionally equivalent.

Q: Can I use T491C336M016AT in an automotive application?

A: T491C336M016AT is qualified for general-purpose applications and carries ROHS3 compliance. However, it does not carry AEC-Q200 automotive qualification like the main part and F971C336KCC. Use in automotive applications requires design review and validation against specific automotive qualification requirements.

Q: What is the impact of MSL 1 versus MSL 3 moisture sensitivity?

A: MSL 3 (168 hours) requires controlled storage and handling procedures with limited floor life after moisture exposure. MSL 1 (unlimited) permits indefinite storage without moisture-related constraints. T491C336M016AT offers superior supply chain flexibility and reduced handling complexity due to its MSL 1 rating.

Q: Are all three parts available in Tape & Reel packaging?

A: Yes. F971C336MCC, F971C336KCC, and T491C336M016AT are all supplied in Tape & Reel (TR) packaging suitable for automated assembly processes.

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