ALA7DF511DF500 Equivalent & Substitute Parts

Part Overview

The ALA7DF511DF500 is a 510 µF, 500 V aluminum electrolytic capacitor manufactured by KEMET in the ALA7D series. This radial, can-style snap-in component is designed for through-hole mounting and is rated for automotive applications under AEC-Q200 standards. The part is currently active in production with 1043 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part number becomes unavailable or when design requirements permit functional alternatives within specified electrical and mechanical parameters.

Substiute Parts

ALA7DF511DF500

KEMETIn Stock: 1063ALA7DF511DF500 Datasheet

Current PartRFQ

ALA7DA511DF500

KEMETIn Stock: 1169ALA7DA511DF500 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of aluminum electrolytic capacitors is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Capacitance value: 510 µF (exact match required)
• Voltage rating: 500 V (exact match required)
• Tolerance: ±20% (exact match required)
• Mounting type: Through Hole (exact match required)
• Package style: Radial, Can - Snap-In (exact match required)
• Physical dimensions: 1.378" Dia (35.00mm) and 2.047" Height (52.00mm) (exact match required)
• Polarization: Polar (exact match required)
• Operating temperature range: -40°C ~ 85°C (exact match required)
• Lifetime rating: 15000 Hrs @ 85°C (exact match required)
• Automotive compliance: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Allowable Variation Parameters:

• ESR @ 100Hz: Variation permitted within component manufacturing tolerances
• Ripple current ratings: Variation permitted; substitute must meet or exceed application requirements
• Impedance: Variation permitted; substitute must meet or exceed application requirements

The substitute part ALA7DA511DF500 meets all mandatory equivalence criteria and is therefore classified as a parametric equivalent within the ALA7D series.

Parameter Comparison

Engineering Selection Recommendations

ALA7DA511DF500 as Substitute for ALA7DF511DF500:

The ALA7DA511DF500 is a direct parametric equivalent and may be selected as a substitute based on the following engineering criteria:

1. Electrical Equivalence: Both parts share identical capacitance (510 µF), voltage rating (500 V), tolerance (±20%), ESR (489.8 mOhm @ 100Hz), and lifetime rating (15000 Hrs @ 85°C). These parameters define the functional performance envelope for the application.

2. Mechanical Compatibility: Physical dimensions are identical (1.378" diameter, 2.047" height), ensuring direct board-level compatibility without layout modifications.

3. Compliance Alignment: Both parts carry AEC-Q200 automotive qualification, ROHS3 compliance, and REACH unaffected status, meeting regulatory and supply chain requirements for automotive applications.

4. Performance Characteristics: The substitute exhibits lower impedance (175 mOhms vs. 190.8 mOhms) and higher ripple current capability at 100 Hz (2.58 A vs. 2.37 A), representing equivalent or superior performance in these parameters.

5. Product Status: Both parts are active in production, ensuring long-term availability and supply continuity.

Selection of ALA7DA511DF500 is appropriate for direct replacement in applications where ALA7DF511DF500 is specified, provided the application does not impose constraints that differentiate performance between these two variants.

Frequently Asked Questions (FAQ)

Q1: Can ALA7DA511DF500 be used as a direct replacement for ALA7DF511DF500 on existing PCBs?

A: Yes. Both parts are identical in physical dimensions (1.378" diameter, 2.047" height), mounting type (through-hole, snap-in), and electrical specifications (510 µF, 500 V, ±20% tolerance). No PCB layout modifications are required.

Q2: Are there differences in electrical performance between these two parts?

A: Both parts share identical capacitance, voltage rating, tolerance, ESR @ 100Hz, and lifetime rating. Minor variations exist in ripple current ratings and impedance; the substitute (ALA7DA511DF500) exhibits lower impedance (175 mOhms vs. 190.8 mOhms) and higher ripple current at 100 Hz (2.58 A vs. 2.37 A). These variations fall within normal manufacturing tolerances for aluminum electrolytic capacitors and do not affect functional equivalence.

Q3: Do both parts meet automotive qualification standards?

A: Yes. Both ALA7DF511DF500 and ALA7DA511DF500 carry AEC-Q200 rating, confirming suitability for automotive applications.

Q4: What is the difference between the ALA7DF and ALA7DA base product numbers?

A: The base product numbers (ALA7DF vs. ALA7DA) indicate different internal design variants within the ALA7D series. Both variants meet identical electrical and mechanical specifications for the 510 µF, 500 V configuration, making them parametric equivalents for substitution purposes.

Q5: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity level (MSL 1 - Unlimited). Regulatory and environmental compliance is equivalent.

Q6: Which part should be selected if both are available?

A: Selection may be based on inventory availability, lead time, or cost considerations. From an engineering standpoint, both parts are functionally equivalent. The ALA7DA511DF500 currently has higher inventory (1095 pcs vs. 1043 pcs), which may support faster procurement.

Q7: Can these parts be mixed in the same design or production batch?

A: Yes. Both parts are parametric equivalents with identical electrical and mechanical specifications. Mixing is permissible from an engineering and compliance standpoint.

Q8: What is the operating temperature range for both parts?

A: Both parts operate across -40°C to 85°C, with a rated lifetime of 15000 hours at 85°C.