Equivalent & Substitute Parts for EMVA250ARA331MHA0G

Part Overview

The EMVA250ARA331MHA0G is a 330 µF, 25 V aluminum electrolytic capacitor manufactured by Chemi-Con in the Alchip™ MVA series. This surface mount radial can capacitor is rated for 2000 hours at 85°C and is designed for general purpose applications. The part carries Last Time Buy status, indicating discontinued production. Identification of equivalent and substitute components is necessary to ensure design continuity and supply chain reliability for applications currently utilizing this capacitor.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Tolerance	±20%	—
Voltage - Rated	25	V
Lifetime @ Temperature	2000 Hrs @ 85°C	—
Operating Temperature Range	-40°C ~ 85°C	—
Ripple Current @ 120 Hz	300	mA
Ripple Current @ 100 kHz	324	mA
Size / Dimension	0.315" Dia (8.00 mm)	—
Height - Seated (Max)	0.394" (10.00 mm)	—
Surface Mount Land Size	0.327" L x 0.327" W (8.30 mm x 8.30 mm)	—
Mounting Type	Surface Mount	—
Package / Case	Radial, Can - SMD	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the EMVA250ARA331MHA0G is determined by the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 330 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 25 V (minimum; higher voltage ratings are acceptable)
Mounting Type: Surface Mount
Package / Case: Radial, Can - SMD
Polarization: Polar
Surface Mount Land Size: 0.327" L x 0.327" W (8.30 mm x 8.30 mm)

Acceptable Variation Parameters:

Operating Temperature Range: Minimum -40°C to +85°C; extended ranges (-55°C to +105°C) are acceptable
Lifetime @ Temperature: Equal to or greater than 2000 Hrs @ 85°C
Ripple Current: Equal to or greater than specified values
Height - Seated: Variations within PCB assembly constraints
ESR / Impedance: Lower values indicate improved performance

Compliance Requirements:

RoHS3 Compliant (mandatory)
MSL 1 (Unlimited) preferred
AEC-Q200 certification acceptable for automotive-grade substitutes

Substitute parts are grouped into three categories: Direct Equivalents (same series, same thermal rating), Direct Substitutes (different manufacturer, equivalent electrical performance), and Upgrade Options (enhanced thermal or electrical performance).

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Lifetime @ Temp	Operating Temp Range	Ripple Current @ 120 Hz (mA)	Ripple Current @ 100 kHz (mA)	Height (mm)	Product Status	Packaging
EMVA250ARA331MHA0G	Chemi-Con	Alchip™ MVA	330	25	2000 Hrs @ 85°C	-40°C ~ 85°C	300	324	10.00	Last Time Buy	Cut Tape (CT)
EMLA250ARA331MHA0G	Chemi-Con	Alchip™ MLA	330	25	3000 Hrs @ 105°C	-40°C ~ 105°C	300	600	10.30	Active	Tape & Reel (TR)
EMZA250ARA331MHA0G	Chemi-Con	Alchip™ MZA	330	25	2000 Hrs @ 105°C	-55°C ~ 105°C	300	600	10.50	Active	Tape & Reel (TR)
EMZJ250ARA331MHA0G	Chemi-Con	Alchip™ MZJ	330	25	2000 Hrs @ 105°C	-55°C ~ 105°C	425	850	10.30	Active	Tape & Reel (TR)
337AXZ025M	Cornell Dubilier / Illinois Capacitor	AXZ	330	25	2000 Hrs @ 105°C	-55°C ~ 105°C	300	600	10.60	Active	Tape & Reel (TR)
AFK337M25F24T-F	Cornell Dubilier Electronics (CDE)	AFK	330	25	2000 Hrs @ 105°C	-55°C ~ 105°C	450	600	10.50	Active	Tape & Reel (TR)
EDK337M025A9MAA	KEMET	EDK	330	25	2000 Hrs @ 85°C	-40°C ~ 85°C	270	337.5	10.50	Active	Tape & Reel (TR)
EEE-1EA331UAP	Panasonic Electronic Components	S	330	25	1000 Hrs @ 85°C	-40°C ~ 85°C	270	459	10.20	Active	Tape & Reel (TR)
EEE-FK1E331P	Panasonic Electronic Components	FK	330	25	2000 Hrs @ 105°C	-55°C ~ 105°C	450	600	10.50	Active	Tape & Reel (TR)
UCL1E331MNL1GS	Nichicon	UCL	330	25	2000 Hrs @ 105°C	-55°C ~ 105°C	425	850	10.00	Active	Tape & Reel (TR)
UCM1V331MNL1GS	Nichicon	UCM	330	35	2000 Hrs @ 105°C	-55°C ~ 105°C	425	850	10.50	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Equivalent (Same Manufacturer - Chemi-Con):

EMLA250ARA331MHA0G is the primary direct equivalent from Chemi-Con. This part maintains identical capacitance, tolerance, and voltage rating while offering extended thermal performance (3000 Hrs @ 105°C versus 2000 Hrs @ 85°C). Operating temperature range extends to 105°C. Ripple current capability at 100 kHz increases to 600 mA. Product status is Active with 2100 units in stock. Packaging transitions from Cut Tape to Tape & Reel format. This substitution is suitable for applications requiring improved thermal stability without design modification.

EMZA250ARA331MHA0G and EMZJ250ARA331MHA0G represent upgraded options within the Chemi-Con portfolio. Both feature AEC-Q200 automotive qualification and extended operating temperature range (-55°C to +105°C). EMZJ250ARA331MHA0G provides the highest ripple current capability (850 mA @ 100 kHz) and lowest impedance (80 mOhms @ 100 kHz). These upgrades are suitable for automotive applications or designs requiring enhanced thermal and electrical performance.

Direct Substitutes (Alternative Manufacturers):

EEE-FK1E331P (Panasonic) and UCL1E331MNL1GS (Nichicon) are functionally equivalent alternatives. Both maintain 330 µF capacitance, 25 V rating, and 2000 Hrs @ 105°C lifetime. EEE-FK1E331P carries AEC-Q200 certification and is suitable for automotive applications. UCL1E331MNL1GS offers superior ripple current (850 mA @ 100 kHz) and lower impedance (80 mOhms). Both are Active products with substantial inventory availability.

AFK337M25F24T-F (Cornell Dubilier Electronics) is an AEC-Q200 qualified alternative with automotive, bypass, and decoupling applications. It provides 450 mA ripple current at 120 Hz and 600 mA at 100 kHz with 160 mOhm impedance.

337AXZ025M (Cornell Dubilier / Illinois Capacitor) is an Active general purpose substitute with 13,421 units in stock, offering the highest inventory availability among all alternatives.

Thermal Performance Consideration:

EDK337M025A9MAA (KEMET) maintains the original thermal rating (2000 Hrs @ 85°C) and operating temperature range (-40°C to +85°C), making it suitable for direct replacement in applications with identical thermal requirements. However, ripple current capability is lower (337.5 mA @ 10 kHz).

EEE-1EA331UAP (Panasonic) is not recommended as a primary substitute due to reduced lifetime rating (1000 Hrs @ 85°C versus 2000 Hrs @ 85°C).

Voltage Rating Consideration:

UCM1V331MNL1GS (Nichicon) features a 35 V rating instead of 25 V. This higher voltage rating is electrically compatible with 25 V applications and provides additional safety margin. However, REACH status is listed as Affected, requiring compliance verification for specific applications.

Packaging Transition:

The original part is supplied in Cut Tape format. All substitute parts are available in Tape & Reel packaging, which is standard for high-volume manufacturing. PCB assembly processes must accommodate this packaging format change.

Frequently Asked Questions (FAQ)

Q: Can EMLA250ARA331MHA0G directly replace EMVA250ARA331MHA0G without PCB modification?

A: Yes. Both parts share identical capacitance (330 µF), tolerance (±20%), voltage rating (25 V), and surface mount land size (8.30 mm x 8.30 mm). Height variation is minimal (10.00 mm to 10.30 mm). Packaging format changes from Cut Tape to Tape & Reel, which affects assembly process but not PCB design. EMLA250ARA331MHA0G offers improved thermal performance (3000 Hrs @ 105°C) and extended operating temperature range.

Q: What is the key difference between EMZA250ARA331MHA0G and EMZJ250ARA331MHA0G?

A: Both parts are Chemi-Con Alchip™ series with identical capacitance, voltage, and thermal rating (2000 Hrs @ 105°C). EMZJ250ARA331MHA0G provides superior electrical performance: ripple current increases from 600 mA to 850 mA at 100 kHz, and impedance is specified at 80 mOhms @ 100 kHz. Both carry AEC-Q200 automotive qualification. EMZJ250ARA331MHA0G is the higher-performance option for demanding applications.

Q: Is UCM1V331MNL1GS compatible with EMVA250ARA331MHA0G despite the 35 V rating?

A: Yes, from an electrical standpoint. The 35 V rating is higher than the original 25 V specification, providing additional voltage margin. However, REACH status is listed as Affected for this part, requiring compliance verification for your specific application and end market. Confirm regulatory requirements before selection.

Q: Which substitute offers the lowest impedance?

A: UCL1E331MNL1GS (Nichicon) and EMZJ250ARA331MHA0G (Chemi-Con) both specify 80 mOhms impedance at 100 kHz, representing the lowest values among all alternatives. These parts are suitable for applications requiring minimal ESR, such as high-frequency decoupling circuits.

Q: What is the inventory status of available substitutes?

A: EEE-FK1E331P (Panasonic) has the highest inventory at 83,030 units. 337AXZ025M (Cornell Dubilier) has 13,421 units. EMZA250ARA331MHA0G (Chemi-Con) has 5,200 units. EMLA250ARA331MHA0G (Chemi-Con) has 2,100 units. All other alternatives have inventory below 3,000 units. Verify current availability with your supplier.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 Compliant status. Moisture Sensitivity Level is MSL 1 (Unlimited) for all parts except UCM1V331MNL1GS, which is not specified in the provided data.

Q: Can I use AFK337M25F24T-F in automotive applications?

A: Yes. AFK337M25F24T-F carries AEC-Q200 qualification and is rated for automotive, bypass, and decoupling applications. It provides 450 mA ripple current at 120 Hz and 600 mA at 100 kHz with 160 mOhm impedance at 100 kHz.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape packaging supplies individual components on tape segments, typically for lower-volume or manual assembly. Tape & Reel packaging supplies components on continuous reels, optimized for automated pick-and-place assembly. All substitute parts use Tape & Reel format. Verify your assembly equipment compatibility before transitioning from Cut Tape.

Q: Which substitute maintains the original thermal rating of 2000 Hrs @ 85°C?

A: EDK337M025A9MAA (KEMET) maintains the original thermal specification. However, it offers lower ripple current capability (337.5 mA @ 10 kHz). For improved thermal performance while maintaining compatibility, EMLA250ARA331MHA0G (Chemi-Con) offers 3000 Hrs @ 105°C with higher ripple current (600 mA @ 100 kHz).

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