MZA6.3VC331MF80TP Equivalent & Substitute Parts

Part Overview

The MZA6.3VC331MF80TP is a 330 µF, 6.3 V aluminum electrolytic capacitor manufactured by Chemi-Con in surface mount radial can package. This component is rated for 2000 hours at 105°C and is designed for general purpose applications. The part is currently obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility with existing designs.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	6.3 V
Tolerance	±20%
Lifetime	2000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Package Type	Radial, Can - SMD
Mounting Type	Surface Mount
Case Diameter	0.248" (6.30 mm)
Maximum Height	0.303" (7.70 mm)
Land Size	0.260" L x 0.260" W (6.60 mm x 6.60 mm)
RoHS Status	RoHS non-compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MZA6.3VC331MF80TP is determined by the following critical parameters:

Primary Compatibility Criteria:

Capacitance: 330 µF (exact match required)
Voltage Rating: 6.3 V minimum (higher voltage ratings are acceptable as they provide backward compatibility)
Tolerance: ±20% (standard tolerance maintained)
Package: Radial, Can - SMD (surface mount configuration)
Case Diameter: 0.248" (6.30 mm)
Land Size: 0.260" L x 0.260" W (6.60 mm x 6.60 mm)
Lifetime: 2000 Hrs @ 105°C (minimum requirement)
Operating Temperature: -55°C ~ 105°C (full range compatibility)
Polarization: Polar (required for electrolytic type)
Mounting: Surface Mount (PCB assembly compatibility)

Substitutes are grouped into two categories:

Category A - Direct 6.3V Equivalents: Parts maintaining 6.3 V rating with identical electrical and mechanical specifications. These include EMZJ6R3ARA331MF80G (Chemi-Con), 6.3JZV330M6.3X8 (Rubycon), 6.3JZV330MBOZ6.3X8 (Rubycon), 6.3TKV330M6.3X8 (Rubycon), 6.3TZV330M6.3X8 (Rubycon), AFK337M06X16T-F (Cornell Dubilier), and EEV337M6R3S9HAA (KEMET).

Category B - Higher Voltage Substitutes: Parts rated at 10 V or 16 V that maintain 330 µF capacitance and compatible package dimensions. These include EEE-FKA331XSP (Panasonic, 10 V), UCM1A331MCL1GS (Nichicon, 10 V), and UCM1C331MCL1GS (Nichicon, 16 V). Higher voltage ratings provide design margin and are electrically compatible in 6.3 V applications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Case Dia (mm)	Height (mm)	Land Size (mm)	Product Status	RoHS
MZA6.3VC331MF80TP	Chemi-Con	330 µF	6.3 V	±20%	2000 Hrs	6.30	7.70	6.60 x 6.60	Obsolete	Non-compliant
EMZJ6R3ARA331MF80G	Chemi-Con	330 µF	6.3 V	±20%	2000 Hrs	6.30	8.00	6.60 x 6.60	Active	ROHS3 Compliant
6.3JZV330M6.3X8	Rubycon	330 µF	6.3 V	±20%	2000 Hrs	6.30	8.00	6.60 x 6.60	Active	ROHS3 Compliant
6.3JZV330MBOZ6.3X8	Rubycon	330 µF	6.3 V	±20%	2000 Hrs	6.30	8.00	6.60 x 6.60	Active	ROHS3 Compliant
6.3TKV330M6.3X8	Rubycon	330 µF	6.3 V	±20%	2000 Hrs	6.30	8.00	6.60 x 6.60	Active	ROHS3 Compliant
6.3TZV330M6.3X8	Rubycon	330 µF	6.3 V	±20%	2000 Hrs	6.30	8.00	6.60 x 6.60	Active	ROHS3 Compliant
AFK337M06X16T-F	Cornell Dubilier	330 µF	6.3 V	±20%	2000 Hrs	6.30	8.20	6.60 x 7.80	Active	ROHS3 Compliant
EEV337M6R3S9HAA	KEMET	330 µF	6.3 V	±20%	2000 Hrs	6.30	8.00	6.60 x 6.60	Active	ROHS3 Compliant
EEE-FKA331XSP	Panasonic	330 µF	10 V	±20%	2000 Hrs	6.30	8.00	6.60 x 6.60	Not For New Designs	ROHS3 Compliant
UCM1A331MCL1GS	Nichicon	330 µF	10 V	±20%	2000 Hrs	6.30	8.00	6.60 x 6.60	Active	ROHS3 Compliant
UCM1C331MCL1GS	Nichicon	330 µF	16 V	±20%	2000 Hrs	6.30	7.90	6.60 x 6.60	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (6.3 V Rating):

EMZJ6R3ARA331MF80G (Chemi-Con) is the primary recommended substitute. It maintains the same manufacturer lineage as the original part, carries AEC-Q200 automotive qualification, and is ROHS3 compliant. This part is active in production with 984 units in stock.

6.3TZV330M6.3X8 (Rubycon) is the secondary recommendation. It offers the highest inventory availability (4383 units), active product status, AEC-Q200 rating, and ROHS3 compliance. The TZV series is established in automotive applications.

6.3TKV330M6.3X8 (Rubycon) provides an alternative with enhanced ripple current capability (600 mA @ 100 kHz) and lower ESR (160 mOhm @ 100 kHz), supporting higher frequency applications. This part carries AEC-Q200 qualification and ROHS3 compliance with 1654 units available.

EEV337M6R3S9HAA (KEMET) is suitable for applications requiring AEC-Q200 automotive qualification. It maintains 6.3 V rating with active product status and ROHS3 compliance.

For Higher Voltage Applications (10 V or 16 V Rating):

UCM1A331MCL1GS (Nichicon, 10 V) is recommended for designs requiring higher voltage margin. It provides 600 mA ripple current capability at 100 kHz and lower impedance (160 mOhms), supporting demanding power delivery applications. Active product status with 1091 units in stock.

UCM1C331MCL1GS (Nichicon, 16 V) offers maximum voltage margin for 6.3 V applications. It maintains identical capacitance and package compatibility with active production status and 845 units available.

Avoid:

EEE-FKA331XSP (Panasonic, 10 V) carries "Not For New Designs" status and should not be selected for new product development, though it remains available for legacy system support.

Frequently Asked Questions (FAQ)

Q: Can I use a 10 V or 16 V rated capacitor in place of the 6.3 V original part?

A: Yes. Higher voltage-rated capacitors are electrically compatible in lower voltage applications. A 10 V or 16 V capacitor will function correctly in a 6.3 V circuit, providing additional voltage margin and design safety. The capacitance value (330 µF) and tolerance (±20%) remain identical, ensuring circuit performance is maintained.

Q: What is the significance of the AEC-Q200 rating on substitute parts?

A: AEC-Q200 is an automotive qualification standard. Parts carrying this rating have undergone rigorous testing for reliability in automotive environments. While the original MZA6.3VC331MF80TP does not list AEC-Q200, most active substitutes do, indicating improved quality assurance and suitability for demanding applications.

Q: Why do some substitute parts have different heights (7.70 mm vs. 8.00 mm vs. 8.20 mm)?

A: Height variation is within acceptable manufacturing tolerances for radial can SMD capacitors. The original part measures 0.303" (7.70 mm) maximum height. Substitutes measuring 0.315" (8.00 mm) or 0.323" (8.20 mm) remain compatible with standard PCB assembly processes and clearance requirements. Verify available PCB clearance for your specific application if height is constrained.

Q: What does RoHS3 compliance mean, and why is it important?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the part meets European environmental regulations restricting lead, cadmium, mercury, and other hazardous materials. The original MZA6.3VC331MF80TP is RoHS non-compliant. All active substitute parts are ROHS3 compliant, making them suitable for modern manufacturing and export requirements.

Q: Are there differences in ESR (Equivalent Series Resistance) between the original and substitutes?

A: Yes. The original part lists ESR as not specified. Some substitutes provide ESR specifications: EMZJ6R3ARA331MF80G and 6.3TKV330M6.3X8 specify 160 mOhm @ 100 kHz, while AFK337M06X16T-F specifies 340 mOhm @ 100 kHz. Lower ESR values indicate better high-frequency performance and reduced heat generation. Select based on your circuit's ripple current and frequency requirements.

Q: What is the difference between the Rubycon JZV and TZV series?

A: Both series maintain identical electrical specifications (330 µF, 6.3 V, ±20%, 2000 Hrs @ 105°C). The TZV series (6.3TZV330M6.3X8) offers higher ripple current capability (300 mA @ 100 kHz) and lower ESR, making it suitable for higher frequency applications. The JZV series (6.3JZV330M6.3X8, 6.3JZV330MBOZ6.3X8) provides standard performance with 180 mA ripple current @ 120 Hz. Select TZV for demanding power delivery circuits; JZV for general purpose applications.

Q: Is the land size difference on AFK337M06X16T-F (6.60 mm x 7.80 mm vs. 6.60 mm x 6.60 mm) a concern?

A: The AFK337M06X16T-F has a slightly larger land size (0.260" L x 0.307" W). This requires PCB pad modification compared to the original design. Verify your PCB layout can accommodate this footprint variation before selecting this part. Other substitutes maintain the original 6.60 mm x 6.60 mm land size for direct PCB compatibility.

Q: Which substitute offers the best inventory availability?

A: 6.3TZV330M6.3X8 (Rubycon) has the highest inventory with 4383 units in stock, followed by 6.3TKV330M6.3X8 (Rubycon) with 1654 units. Both are active products with established supply chains, making them reliable choices for volume production.

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