EMZS350ARA331MHA0G Equivalent & Substitute Parts

Part Overview

The EMZS350ARA331MHA0G is a 330 µF, 35 V aluminum electrolytic capacitor manufactured by Chemi-Con in the Alchip™-MZS series. This surface mount radial can capacitor is designed for automotive applications and carries AEC-Q200 qualification. The component features 80 mOhm equivalent series resistance at 100 kHz and a rated lifetime of 2000 hours at 105°C.

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and environmental ratings align with the original specification. Alternative sources provide design flexibility, supply chain redundancy, and access to components with enhanced performance characteristics such as extended lifetime ratings or improved ripple current handling.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Voltage Rating	35	V
Tolerance	±20	%
ESR @ 100 kHz	80	mOhm
Lifetime @ 105°C	2000	Hrs
Operating Temperature Range	-55 to 105	°C
Ripple Current @ 100 kHz	850	mA
Case Diameter	8.00	mm
Maximum Height	10.50	mm
Land Size	8.30 x 8.30	mm
Package Type	Radial, Can - SMD	—
Mounting	Surface Mount	—
AEC-Q200 Rated	Yes	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment of electrical and mechanical parameters. The following criteria establish compatibility:

Primary Substitution Criteria:

Capacitance: 330 µF (exact match required)
Voltage Rating: 35 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - SMD (exact match required)
Case Diameter: 8.00 mm (exact match required)
Land Size: 8.30 x 8.30 mm (exact match required)
Mounting Type: Surface Mount (exact match required)
Operating Temperature: -55°C to 105°C (exact match required)
AEC-Q200 Rating: Required for automotive applications
RoHS3 Compliance: Required

Secondary Performance Parameters:

ESR @ 100 kHz: 80 mOhm (preferred) or 160 mOhm (acceptable with performance trade-off)
Ripple Current @ 100 kHz: 850 mA (preferred) or 600 mA (acceptable with derating consideration)
Lifetime @ 105°C: 2000 Hrs (minimum) or 5000 Hrs (enhanced)
Maximum Height: 10.30 mm to 10.50 mm (within tolerance stack)

Substitute parts are grouped by their deviation from the primary specification. Parts with identical electrical and mechanical parameters are direct equivalents. Parts with higher ESR or lower ripple current ratings are parametric equivalents suitable for applications with less stringent performance demands.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	ESR @ 100 kHz (mOhm)	Lifetime @ 105°C (Hrs)	Height (mm)	Product Status
EMZS350ARA331MHA0G	Chemi-Con	Alchip™-MZS	330	35	80	2000	10.50	Active
EMZR350ARA331MHA0G	Chemi-Con	Alchip™-MZR	330	35	80	2000	10.30	Active
EEE-FT1V331GP	Panasonic	FT	330	35	80	5000	10.50	Active
35TPV330M8X10.5	Rubycon	TPV	330	35	80	2000	10.50	Active
EEE-FK1V331SL	Panasonic	FKS	330	35	160	2000	10.50	Not For New Designs
EEE-FN1V331UL	Panasonic	FN	330	35	160	2000	10.50	Active
EEE-FN1V331UP	Panasonic	FN	330	35	160	2000	10.50	Active
EEE-FT1V331AL	Panasonic	FT	330	35	80	2000	10.50	Active
EEE-FT1V331AP	Panasonic	FT	330	35	80	2000	10.50	Active
UCM1V331MNL1GS	Nichicon	UCM	330	35	80	2000	10.50	Active

Engineering Selection Recommendations

Direct Upgrade Path: EMZR350ARA331MHA0G (Chemi-Con) provides a direct upgrade within the same manufacturer family. This part maintains identical electrical specifications while reducing maximum height from 10.50 mm to 10.30 mm, offering improved board space efficiency. Both parts carry Active product status and AEC-Q200 automotive qualification.

Enhanced Lifetime Option: EEE-FT1V331GP (Panasonic) extends the rated lifetime from 2000 hours to 5000 hours at 105°C while maintaining 80 mOhm ESR and identical mechanical dimensions. This part is suitable for applications requiring extended thermal endurance. Product status is Active with full AEC-Q200 compliance.

Direct Electrical Equivalents: EEE-FT1V331AL, EEE-FT1V331AP (Panasonic), 35TPV330M8X10.5 (Rubycon), and UCM1V331MNL1GS (Nichicon) provide identical electrical performance with 80 mOhm ESR and 2000-hour lifetime ratings. All maintain Active product status and AEC-Q200 qualification. These parts are suitable for one-to-one replacement in existing designs.

Parametric Equivalents with Performance Trade-off: EEE-FN1V331UL and EEE-FN1V331UP (Panasonic) feature doubled ESR at 160 mOhm and reduced ripple current capability (600 mA @ 100 kHz versus 850 mA). These parts are Active and AEC-Q200 rated but are suitable only for applications with lower ripple current demands or where ESR sensitivity is not critical.

Obsolescence Consideration: EEE-FK1V331SL (Panasonic) carries "Not For New Designs" status and features 160 mOhm ESR. This part is not recommended for new design implementations.

Compliance Status: All recommended parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). UCM1V331MNL1GS carries REACH Affected status, while all other parts are REACH Unaffected.

Frequently Asked Questions (FAQ)

Q: Can EMZR350ARA331MHA0G be used as a direct replacement for EMZS350ARA331MHA0G?

A: Yes. Both parts are manufactured by Chemi-Con with identical electrical specifications (330 µF, 35 V, 80 mOhm ESR, 2000-hour lifetime). The primary difference is maximum height: EMZR is 10.30 mm versus EMZS at 10.50 mm. Both are AEC-Q200 rated and Active products. The height reduction in EMZR may provide board layout advantages.

Q: What is the difference between 80 mOhm and 160 mOhm ESR parts?

A: ESR (Equivalent Series Resistance) directly affects voltage ripple and heat dissipation. Parts with 80 mOhm ESR (EMZS, EMZR, EEE-FT series, 35TPV, UCM) generate less heat and exhibit lower impedance across the frequency spectrum. Parts with 160 mOhm ESR (EEE-FN, EEE-FK series) are suitable for lower ripple current applications but produce approximately twice the resistive losses. Selection depends on circuit ripple current demands.

Q: Is EEE-FT1V331GP suitable for applications requiring extended thermal performance?

A: Yes. EEE-FT1V331GP extends the rated lifetime to 5000 hours at 105°C compared to 2000 hours for the original EMZS350ARA331MHA0G. All other electrical and mechanical parameters remain identical. This part is recommended for automotive applications with extended operating life requirements or elevated ambient temperature exposure.

Q: Can parts with different manufacturers be mixed in the same circuit board?

A: Yes, provided all parts meet the specified electrical and mechanical parameters. All recommended substitutes carry AEC-Q200 automotive qualification, ROHS3 compliance, and identical capacitance, voltage, tolerance, and package specifications. Mixing manufacturers is acceptable from an engineering standpoint; however, procurement and supply chain considerations may apply.

Q: Why is EEE-FK1V331SL marked "Not For New Designs"?

A: Parts designated "Not For New Designs" are typically in transition toward obsolescence or have been superseded by improved alternatives. While EEE-FK1V331SL remains functionally compatible, Panasonic recommends using active alternatives such as EEE-FN or EEE-FT series for new design implementations to ensure long-term supply availability.

Q: What is the impact of reduced ripple current rating on circuit performance?

A: Ripple current rating indicates the maximum AC current the capacitor can handle without exceeding temperature rise limits. Parts rated at 600 mA @ 100 kHz (EEE-FN series) versus 850 mA (EMZS, EMZR, EEE-FT, 35TPV, UCM series) require derating in high-ripple applications. If circuit ripple current exceeds 600 mA, parts with lower ratings will experience accelerated aging and reduced lifetime.

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

A: Yes. All parts listed are supplied in Tape & Reel (TR) packaging with identical land size specifications (8.30 mm × 8.30 mm), ensuring compatibility with automated assembly equipment and pick-and-place systems.

Q: What is the significance of REACH Affected versus REACH Unaffected status?

A: REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) compliance indicates regulatory status in the European Union. UCM1V331MNL1GS is REACH Affected, meaning it may contain substances of concern requiring additional documentation. All other parts are REACH Unaffected. For applications with strict regulatory requirements, REACH Unaffected parts are preferred.

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