VZH331M2ATR-1816S Equivalent & Substitute Parts

Part Overview

The VZH331M2ATR-1816S is a 330 µF, 100 V aluminum electrolytic capacitor manufactured by SURGE in a surface mount radial can package. This component is rated for 5000 hours at 105°C and operates across the temperature range of -55°C to 105°C. The part maintains Active product status with 664 units currently in stock.

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to supply constraints, manufacturing discontinuation, or application-specific certifications. The substitute parts listed maintain electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

VZH331M2ATR-1816S

SURGEIn Stock: 732VZH331M2ATR-1816S Datasheet

Current PartRFQ

EEE-FK2A331AM

Panasonic Electronic ComponentsIn Stock: 866EEE-FK2A331AM Datasheet

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EEV-FK2A331M

Panasonic Electronic ComponentsIn Stock: 2037EEV-FK2A331M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

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

Electrical Parameters:

• Capacitance: 330 µF (exact match required)
• Voltage Rating: 100 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime: 5000 Hrs @ 105°C (exact match required)
• Operating Temperature: -55°C ~ 105°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Parameters:

• Package Type: Radial, Can - SMD (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical Dimensions: 0.709" Dia (18.00mm), Height 0.669" (17.00mm) (exact match required)
• Land Size: 0.748" L x 0.748" W (19.00mm x 19.00mm) (exact match required)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (exact match required)
• MSL Rating: 1 (Unlimited) (exact match required)

The substitute parts EEE-FK2A331AM and EEV-FK2A331M satisfy all critical electrical, mechanical, and compliance parameters, establishing direct substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain Active product status and full ROHS3 compliance. The EEE-FK2A331AM and EEV-FK2A331M are manufactured by Panasonic Electronic Components and carry AEC-Q200 automotive qualification ratings, providing additional reliability documentation for applications requiring automotive-grade components.

The Panasonic substitutes demonstrate marginally higher ripple current ratings (687.8 mA @ 120 Hz and 917 mA @ 100 kHz compared to 595 mA and 850 mA respectively) and impedance values within 3 mOhms of the original specification. These variations remain within acceptable engineering tolerances for direct substitution.

Selection between EEE-FK2A331AM and EEV-FK2A331M depends on application-specific requirements. EEV-FK2A331M carries automotive application designation, while EEE-FK2A331AM supports both automotive and high temperature reflow applications. Both parts are available in higher inventory quantities (853 and 2000 units respectively) compared to the original VZH331M2ATR-1816S (664 units).

Frequently Asked Questions (FAQ)

Q: Can EEE-FK2A331AM and EEV-FK2A331M be used interchangeably with VZH331M2ATR-1816S?

A: Yes. Both Panasonic parts satisfy all critical electrical parameters (330 µF, 100 V, ±20% tolerance, 5000 Hrs @ 105°C), mechanical specifications (18.00mm diameter, 17.00mm height, 19.00mm x 19.00mm land size), and compliance requirements (ROHS3, MSL 1). Direct substitution is supported without circuit modification.

Q: What are the differences in ripple current ratings?

A: The Panasonic substitutes provide higher ripple current capacity at both low and high frequencies. At 120 Hz, the substitutes deliver 687.8 mA compared to 595 mA. At 100 kHz, the substitutes deliver 917 mA compared to 850 mA. These higher ratings provide additional design margin and do not restrict substitution.

Q: Are there differences in impedance specifications?

A: The Panasonic substitutes specify 153 mOhms impedance compared to 150 mOhms for the original part. This 3 mOhm difference (2% variance) remains within acceptable engineering tolerances for aluminum electrolytic capacitor substitution and does not affect circuit performance.

Q: Which substitute part should be selected for automotive applications?

A: Both EEE-FK2A331AM and EEV-FK2A331M carry AEC-Q200 automotive qualification. EEV-FK2A331M is designated specifically for automotive applications, while EEE-FK2A331AM supports both automotive and high temperature reflow applications. Selection depends on specific application requirements.

Q: Are the physical dimensions identical across all three parts?

A: Yes. All three parts share identical physical dimensions: 0.709" diameter (18.00mm), 0.669" seated height (17.00mm), and 0.748" x 0.748" land size (19.00mm x 19.00mm). PCB layout and mounting procedures require no modification.

Q: What is the MSL rating and why is it important?

A: All three parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture baking requirements. This simplifies inventory management and eliminates moisture sensitivity constraints during storage and handling.

Q: Are all parts ROHS3 compliant?

A: Yes. VZH331M2ATR-1816S, EEE-FK2A331AM, and EEV-FK2A331M all maintain ROHS3 compliance, meeting environmental and regulatory requirements for restricted substance elimination.