MVK25VC33RMF55TP Equivalent & Substitute Parts

Part Overview

The MVK25VC33RMF55TP is a 33 µF, 25 V aluminum electrolytic capacitor manufactured by Chemi-Con in surface mount radial can package. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing production and maintenance applications. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 1000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Key Parameters

Parameter	Value	Unit
Capacitance	33	µF
Tolerance	±20	%
Voltage - Rated	25	V
ESR @ 120 Hz	8.036	Ohm
Lifetime @ 105°C	1000	Hrs
Operating Temperature Range	-40 to 105	°C
Ripple Current @ 120 Hz	45	mA
Size / Diameter	6.30	mm
Height - Seated (Max)	5.20	mm
Surface Mount Land Size	6.60 x 6.60	mm
Mounting Type	Surface Mount	-
Package / Case	Radial, Can - SMD	-
Polarization	Polar	-

Substitute Part Grouping Explanation

Substitution of the MVK25VC33RMF55TP is determined by strict equivalence in the following parameters:

Primary Substitution Criteria:

Capacitance: 33 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 25 V minimum (equal or higher voltage acceptable)
Package / Case: Radial, Can - SMD (exact match required)
Surface Mount Land Size: 6.60 mm x 6.60 mm (exact match required)
Mounting Type: Surface Mount (exact match required)
Polarization: Polar (exact match required)
Lifetime @ 105°C: 1000 Hrs minimum (equal or greater acceptable)

Secondary Compatibility Parameters:

Operating Temperature Range: -40°C to 105°C minimum (wider ranges acceptable)
Physical Dimensions: Height ≤ 5.50 mm (within PCB clearance tolerance)
Ripple Current @ 120 Hz: 45 mA minimum (higher values acceptable)

Substitute parts are grouped into three categories: Direct Equivalents (matching all primary criteria with active product status), Upgraded Ratings (higher voltage rating with identical capacitance and package), and Parametric Equivalents (alternative manufacturers meeting all electrical and mechanical specifications).

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance (%)	Height (mm)	ESR @ 120Hz (Ohm)	Ripple Current @ 120Hz (mA)	Product Status	RoHS Status
MVK25VC33RMF55TP	Chemi-Con	33	25	±20	5.20	8.036	45	Obsolete	Non-compliant
EMVY250ARA330MF55G	Chemi-Con	33	25	±20	5.20	-	56	Active	ROHS3 Compliant
EMVY350ARA330MF55G	Chemi-Con	33	35	±20	5.20	-	56	Active	ROHS3 Compliant
EMVE250ARA330MF55G	Chemi-Con	33	25	±20	5.20	-	50	Active	ROHS3 Compliant
25SKV33M6.3X5.5	Rubycon	33	25	±20	5.50	-	48	Last Time Buy	ROHS3 Compliant
25SZV33M6.3X5.5	Rubycon	33	25	±20	5.50	-	77	Last Time Buy	ROHS3 Compliant
AVES336M25D16T-F	Cornell Dubilier Electronics	33	25	±20	5.50	8	44	Active	ROHS3 Compliant
AVEZ336M25D16T-F	Cornell Dubilier Electronics	33	25	±20	5.50	0.85	136	Active	ROHS3 Compliant
EEE-FC1E330P	Panasonic Electronic Components	33	25	±20	5.40	-	105	Not For New Designs	RoHS Compliant
EEE-HA1E330P	Panasonic Electronic Components	33	25	±20	5.40	-	65	Not For New Designs	RoHS Compliant
UUQ1E330MCL1GB	Nichicon	33	25	±20	5.40	-	48	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent - Recommended for New Designs:

EMVY250ARA330MF55G (Chemi-Con) is the primary direct equivalent. This part maintains identical electrical specifications (33 µF, 25 V, ±20% tolerance) and physical dimensions (5.20 mm height) as the obsolete MVK25VC33RMF55TP. The EMVY250ARA330MF55G carries Active product status and ROHS3 compliance, making it suitable for new production and long-term availability. Ripple current capacity is increased to 56 mA at 120 Hz, providing improved performance margin.

Upgraded Rating Option:

EMVY350ARA330MF55G (Chemi-Con) provides the same capacitance and package with elevated voltage rating (35 V instead of 25 V). This part is appropriate for applications requiring additional voltage margin or where 35 V rated components are standardized. Active product status and ROHS3 compliance are maintained.

Alternative Equivalent - Active Status:

EMVE250ARA330MF55G (Chemi-Con, Alchip™ MVE series) offers parametric equivalence with identical voltage and capacitance ratings. This part is Active and ROHS3 compliant with comparable ripple current performance (50 mA at 120 Hz).

Secondary Alternatives - Extended Availability:

AVES336M25D16T-F (Cornell Dubilier Electronics) and AVEZ336M25D16T-F (Cornell Dubilier Electronics) are Active alternatives with matching electrical specifications. Both maintain 25 V rating and 33 µF capacitance. The AVEZ336M25D16T-F variant offers superior low-impedance performance (850 mOhms) and elevated ripple current capacity (136 mA at 120 Hz), suitable for high-ripple applications.

Legacy Alternatives - Limited Availability:

Rubycon 25SKV33M6.3X5.5 and 25SZV33M6.3X5.5 are classified as Last Time Buy. These parts meet electrical and mechanical specifications but have restricted future availability. The 25SZV33M6.3X5.5 variant provides higher ripple current (77 mA at 120 Hz) and impedance specification (1 Ohm).

Panasonic EEE-FC1E330P and EEE-HA1E330P are marked Not For New Designs. These parts carry AEC-Q200 automotive qualification and RoHS compliance but are restricted from new design implementation.

Nichicon UUQ1E330MCL1GB:

This Active part meets all primary substitution criteria with ROHS3 compliance. Operating temperature range is -40°C to 105°C, matching the original specification. Ripple current at 120 Hz is 48 mA, within acceptable performance parameters.

Frequently Asked Questions (FAQ)

Q: Can EMVY350ARA330MF55G (35 V rating) be used as a direct replacement for MVK25VC33RMF55TP (25 V rating)?

A: Yes. The 35 V rated part is electrically compatible in circuits designed for 25 V operation. Higher voltage rating provides additional safety margin and does not degrade circuit performance. Physical dimensions and capacitance remain identical. This substitution is appropriate for all applications.

Q: What is the difference between EMVY250ARA330MF55G and EMVE250ARA330MF55G?

A: Both parts are Chemi-Con products with identical electrical ratings (33 µF, 25 V, ±20%). EMVY250ARA330MF55G belongs to the Alchip™ MVY series with 56 mA ripple current at 120 Hz. EMVE250ARA330MF55G belongs to the Alchip™ MVE series with 50 mA ripple current at 120 Hz. Both are Active and ROHS3 compliant. Selection depends on ripple current requirements and series standardization.

Q: Are Rubycon 25SKV33M6.3X5.5 and 25SZV33M6.3X5.5 still available for new production?

A: Both parts are classified as Last Time Buy, indicating restricted future availability. While currently in stock (3886 and 2005 units respectively), these parts should not be selected for new designs. EMVY250ARA330MF55G or EMVE250ARA330MF55G are recommended alternatives with confirmed long-term availability.

Q: What is the significance of the height difference between 5.20 mm and 5.50 mm?

A: Physical height is a critical PCB layout parameter. The original MVK25VC33RMF55TP has 5.20 mm seated height. Substitute parts with 5.50 mm height (Rubycon SKV/SZV series, Cornell Dubilier AVES/AVEZ series) require verification of PCB clearance and component placement constraints. Height difference of 0.30 mm may affect board assembly in space-constrained applications. Chemi-Con EMVY and EMVE series maintain 5.20 mm height, eliminating layout concerns.

Q: Can Panasonic EEE-FC1E330P or EEE-HA1E330P be used in new designs?

A: Both parts are marked Not For New Designs. While electrically compatible and currently in stock (122476 and 6160 units respectively), these parts are restricted from new design implementation per manufacturer guidance. EMVY250ARA330MF55G or EMVE250ARA330MF55G are appropriate alternatives for new production.

Q: What does ROHS3 compliance mean compared to RoHS compliance?

A: ROHS3 represents the third iteration of the Restriction of Hazardous Substances directive with updated substance restrictions. ROHS3 compliant parts meet current regulatory requirements and are suitable for all markets. The original MVK25VC33RMF55TP is RoHS non-compliant, making ROHS3 compliant alternatives (EMVY series, Rubycon SKV/SZV, Cornell Dubilier AVES/AVEZ) necessary for regulatory compliance in new production.

Q: Is ESR (Equivalent Series Resistance) a critical parameter for substitution?

A: ESR is a performance parameter but not a strict substitution requirement. The original part specifies 8.036 Ohm at 120 Hz. Substitute parts with unspecified ESR or lower ESR values (such as AVEZ336M25D16T-F at 850 mOhms) are acceptable. Lower ESR generally indicates improved performance. ESR specification absence in most substitute parts indicates manufacturer design optimization and does not preclude substitution.

Q: What is the difference between Tape & Reel (TR) and standard packaging?

A: Tape & Reel packaging is standard for surface mount components in automated assembly. Most substitute parts are supplied in Tape & Reel format. The original MVK25VC33RMF55TP packaging is listed as "-" (unspecified). Tape & Reel packaging is compatible with standard SMD assembly equipment and is the industry standard for production environments.

Q: Can AVEZ336M25D16T-F with 850 mOhms impedance replace the original 8.036 Ohm ESR specification?

A: Yes. The AVEZ336M25D16T-F impedance specification of 850 mOhms (0.85 Ohm) is significantly lower than the original 8.036 Ohm ESR, representing superior performance. Lower impedance reduces voltage ripple and heat generation. This part is suitable for applications requiring enhanced performance characteristics. The lower impedance does not create compatibility issues in standard circuits.

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