ALA7DF331CE500 Equivalent & Substitute Parts

Part Overview

The ALA7DF331CE500 is a 330 µF, 500 V aluminum electrolytic capacitor manufactured by KEMET in the ALA7D series. This radial, can-style snap-in capacitor is designed for through-hole mounting applications and is rated for automotive use under AEC-Q200 standards. The component is currently in active production status with 692 units in stock.

Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity. Alternative components must maintain identical electrical performance and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

ALA7DF331CE500

KEMETIn Stock: 796ALA7DF331CE500 Datasheet

Current PartRFQ

ALA7DA331CE500

KEMETIn Stock: 1854ALA7DA331CE500 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALA7DF331CE500 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance: 330 µF (exact match)
• Voltage Rating: 500 V (exact match)
• Tolerance: ±20% (exact match)
• Lifetime: 13000 Hrs @ 85°C (exact match)
• Operating Temperature Range: -40°C to 85°C (exact match)
• Polarization: Polar (exact match)

Mechanical Equivalence Requirements:

• Package Type: Radial, Can - Snap-In (exact match)
• Mounting Type: Through Hole (exact match)
• Physical Dimensions: 1.181" Dia (30.00mm) × 1.850" Height (47.00mm) (exact match)

Compliance Requirements:

• AEC-Q200 Automotive Rating (required)
• RoHS3 Compliance (required)
• REACH Unaffected Status (required)

The substitute part ALA7DA331CE500 meets all electrical, mechanical, and compliance criteria for direct substitution. Variations in ESR, impedance, and ripple current specifications do not disqualify substitution when all primary parameters remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: ALA7DF331CE500

The ALA7DF331CE500 is the specified component and should be selected when available. This part maintains active production status and carries full AEC-Q200 automotive qualification with ROHS3 compliance.

Alternative Selection: ALA7DA331CE500

The ALA7DA331CE500 is a direct parametric equivalent suitable for substitution. Both components are manufactured by KEMET within the ALA7D series and share identical electrical ratings, mechanical dimensions, and compliance certifications. The ALA7DA331CE500 currently maintains higher inventory availability (1813 units versus 692 units).

Selection between these two parts should be based on:

• Availability requirements
• Supply chain lead time considerations
• Inventory management objectives
• Circuit design tolerance for ripple current and impedance variations

Both parts satisfy automotive AEC-Q200 requirements and RoHS3 environmental compliance. No additional qualification or testing is required for substitution between these components.

Frequently Asked Questions (FAQ)

Q: Can ALA7DA331CE500 be used as a direct replacement for ALA7DF331CE500?

A: Yes. Both components are parametrically equivalent across all critical electrical and mechanical specifications. They share identical capacitance (330 µF), voltage rating (500 V), tolerance (±20%), lifetime (13000 Hrs @ 85°C), operating temperature range (-40°C to 85°C), package type (Radial, Can - Snap-In), and physical dimensions (1.181" Dia × 1.850" Height). Both carry AEC-Q200 automotive qualification and ROHS3 compliance.

Q: What are the differences between these two parts?

A: The primary differences are in ripple current specifications and impedance. ALA7DF331CE500 specifies 2.42 A @ 100 Hz and 6.46 A @ 10 kHz, while ALA7DA331CE500 specifies 2.21 A @ 100 Hz and 4.59 A @ 10 kHz. Impedance values differ (189.4 mOhms versus 234.6 mOhms). These variations do not affect substitution eligibility when core electrical and mechanical parameters remain identical.

Q: Are both parts suitable for automotive applications?

A: Yes. Both ALA7DF331CE500 and ALA7DA331CE500 carry AEC-Q200 automotive qualification and are rated for automotive use across the operating temperature range of -40°C to 85°C.

Q: What is the physical compatibility between these parts?

A: Both parts are physically identical. They use the same radial, can-style snap-in package with through-hole mounting. Physical dimensions are 1.181" diameter (30.00mm) and 1.850" maximum seated height (47.00mm). They are mechanically interchangeable on PCBs designed for either component.

Q: Do these parts require different handling or storage procedures?

A: No. Both components share identical moisture sensitivity level (MSL 1 - Unlimited) and storage requirements. No differential handling procedures are required.

Q: Which part should be selected for new designs?

A: Either component is acceptable for new designs. Selection should be based on availability, supply chain considerations, and inventory management. Both parts maintain active production status and equivalent long-term availability.