MZA50VC33RMF80TP Equivalent & Substitute Parts

Part Overview

The MZA50VC33RMF80TP is a 33 µF, 50 V aluminum electrolytic capacitor manufactured by Chemi-Con in surface mount radial can package. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design support and procurement. The part is rated for general purpose applications with a 2000-hour lifetime at 105°C operating temperature and operates across the -55°C to 105°C temperature range.

Key Parameters

Parameter	Value	Unit
Capacitance	33	µF
Tolerance	±20%	-
Voltage - Rated	50	V
ESR @ 120Hz	282	mOhm
Lifetime @ 105°C	2000	Hrs
Operating Temperature Range	-55 to 105	°C
Ripple Current @ 100 kHz	195	mA
Impedance	680	mOhms
Case Size	6.30 Dia × 7.70 H	mm
Mounting Type	Surface Mount	-
Package / Case	Radial, Can - SMD	-
Polarization	Polar	-

Substitute Part Grouping Explanation

Substitution of the MZA50VC33RMF80TP is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 33 µF
Tolerance: ±20%
Voltage Rating: 50 V
Operating Temperature Range: -55°C to 105°C
Lifetime: 2000 Hrs @ 105°C
Polarization: Polar
Mounting Type: Surface Mount
Package / Case: Radial, Can - SMD
Case Dimension: 6.30 mm diameter

Allowable Variation Parameters:

ESR (Equivalent Series Resistance): Variations within 680–800 mOhm range acceptable
Ripple Current @ 100 kHz: 170–195 mA acceptable
Height: 7.70–8.20 mm acceptable (within SMD assembly constraints)
Surface Mount Land Size: 6.60 × 6.60 mm to 6.60 × 7.80 mm acceptable

Substitute parts are classified into three categories:

Direct Manufacturer Substitutes (Active Status): Parts with identical electrical specifications and active product status from established manufacturers.

Similar Manufacturer Substitutes (Active Status): Parts meeting all mandatory parameters with minor variations in ripple current or impedance, suitable for direct replacement.

Parametric Equivalents (Active Status): Parts meeting all mandatory parameters with acceptable variations in ESR or height, providing functional equivalence.

Parameter Comparison

Manufacturer	Part Number	Capacitance (µF)	Voltage (V)	Tolerance	ESR (mOhm)	Ripple @ 100kHz (mA)	Height (mm)	Status	RoHS
Chemi-Con	MZA50VC33RMF80TP	33	50	±20%	282 @ 120Hz	195	7.70	Obsolete	Non-compliant
Rubycon	50TZV33M6.3X8	33	50	±20%	680	195	8.00	Active	ROHS3
Cornell Dubilier Electronics	AFK336M50X16T-F	33	50	±20%	680 @ 100kHz	195	8.20	Active	ROHS3
KEMET	EEV336M050A9HAA	33	50	±20%	800 @ 100kHz	170	8.00	Active	ROHS3
KEMET	EEV336M050S9HAA	33	50	±20%	800	170	8.00	Active	ROHS3
Nichicon	UCD1H330MCL1GS	33	50	±20%	660	195	8.00	Active	ROHS3
Panasonic Electronic Components	EEE-FK1H330XP	33	50	±20%	680	195	8.00	Active	ROHS3
Nichicon	UUD1H330MCL1GS	33	50	±20%	680	185	8.00	Active	ROHS3
Würth Elektronik	865060645007	33	50	±20%	680	185	7.70	Active	ROHS3
Würth Elektronik	865080645010	33	50	±20%	710	190	7.70	Active	ROHS3
Nichicon	UWD1H330MCL1GS	33	50	±20%	680	185	7.70	Active	ROHS3

Engineering Selection Recommendations

Primary Selection Criteria:

All substitute parts listed meet the mandatory electrical and mechanical parameters required for direct replacement of the MZA50VC33RMF80TP. Selection should be based on the following factors:

Product Status: All substitute parts carry Active product status, ensuring long-term availability and manufacturing support. The original MZA50VC33RMF80TP is classified as Obsolete and should be replaced in new designs.

Regulatory Compliance: All substitute parts are ROHS3 compliant, addressing environmental and regulatory requirements. The original part is RoHS non-compliant. For applications requiring RoHS compliance, any of the listed substitutes is suitable.

Automotive Qualification: Parts with AEC-Q200 rating include 50TZV33M6.3X8 (Rubycon), AFK336M50X16T-F (Cornell Dubilier), EEV336M050S9HAA (KEMET), UCD1H330MCL1GS (Nichicon), and EEE-FK1H330XP (Panasonic). These parts are qualified for automotive applications.

General Purpose Applications: Parts without AEC-Q200 rating (EEV336M050A9HAA, 865060645007, 865080645010, UWD1H330MCL1GS, UUD1H330MCL1GS) are suitable for general purpose applications.

Physical Fit Considerations: Parts with 7.70 mm height (865060645007, 865080645010, UWD1H330MCL1GS) match the original part height exactly. Parts with 8.00–8.20 mm height require verification of available PCB assembly clearance.

Inventory Availability: EEE-FK1H330XP (Panasonic) offers the highest inventory level (46,064 pcs), followed by UUD1H330MCL1GS (Nichicon, 60,300 pcs). These parts provide supply chain security for high-volume applications.

Frequently Asked Questions (FAQ)

Q1: Can I use any of these substitute parts as a direct replacement for MZA50VC33RMF80TP?

A: Yes. All listed substitute parts meet the mandatory electrical specifications (33 µF, 50 V, ±20% tolerance, 2000 Hrs @ 105°C, -55°C to 105°C operating range) and physical package requirements (6.30 mm diameter, surface mount radial can). Direct PCB-level substitution is supported without circuit redesign.

Q2: What is the difference between "Direct Manufacturer Substitutes," "Similar Manufacturer Substitutes," and "Parametric Equivalents"?

A: Direct Manufacturer Substitutes (50TZV33M6.3X8, AFK336M50X16T-F, EEV336M050A9HAA, EEV336M050S9HAA, UCD1H330MCL1GS) are parts from established manufacturers with identical or near-identical electrical specifications. Similar Manufacturer Substitutes (EEE-FK1H330XP, UUD1H330MCL1GS) meet all mandatory parameters with minor variations in ripple current or impedance. Parametric Equivalents (865060645007, 865080645010, UWD1H330MCL1GS) meet all mandatory parameters with acceptable variations in ESR or height. All three categories are functionally equivalent for the MZA50VC33RMF80TP application.

Q3: Does height variation affect PCB assembly compatibility?

A: The original MZA50VC33RMF80TP has a maximum seated height of 7.70 mm. Substitute parts range from 7.70 mm to 8.20 mm. Height differences of 0.30–0.50 mm are within typical SMD assembly tolerances and do not affect reflow soldering or component placement. Verify available clearance above the component location on your PCB. If clearance is constrained, select parts with 7.70 mm height: 865060645007, 865080645010, or UWD1H330MCL1GS.

Q4: Which substitute part should I select for automotive applications?

A: For automotive applications, select parts with AEC-Q200 qualification: 50TZV33M6.3X8 (Rubycon), AFK336M50X16T-F (Cornell Dubilier), EEV336M050S9HAA (KEMET), UCD1H330MCL1GS (Nichicon), or EEE-FK1H330XP (Panasonic). These parts meet automotive reliability and qualification standards.

Q5: What is the significance of ESR variation among substitute parts?

A: ESR (Equivalent Series Resistance) ranges from 660 mOhm to 800 mOhm across the substitute parts, compared to 282 mOhm @ 120Hz for the original part. Higher ESR results in increased heat dissipation and slightly reduced high-frequency performance. For applications with ripple current specifications, verify that the substitute part's ripple current rating (170–195 mA @ 100 kHz) meets your circuit requirements. All listed parts support the original 195 mA ripple current specification or higher.

Q6: Are there packaging differences I should consider?

A: The original MZA50VC33RMF80TP uses standard SMD packaging. Most substitute parts are supplied in Tape & Reel (TR) format. UUD1H330MCL1GS (Nichicon) is supplied in Cut Tape (CT) & Digi-Reel® format. Verify packaging compatibility with your procurement and assembly processes. All parts use identical 6.60 × 6.60 mm surface mount land size, except AFK336M50X16T-F which uses 6.60 × 7.80 mm.

Q7: Which substitute part offers the best supply chain security?

A: UUD1H330MCL1GS (Nichicon) has the highest inventory level at 60,300 pcs, followed by EEE-FK1H330XP (Panasonic) at 46,064 pcs. Both parts are Active status with established manufacturing support. For long-term production programs, either part provides reliable supply chain continuity.

Q8: Do all substitute parts comply with RoHS regulations?

A: Yes. All substitute parts are ROHS3 compliant. The original MZA50VC33RMF80TP is RoHS non-compliant. If your application requires RoHS compliance, any of the listed substitute parts is suitable.

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