ALA7DD511DF500 Equivalent & Substitute Parts

Part Overview

The ALA7DD511DF500 is a 510 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 and is rated for automotive applications under AEC-Q200 standards. The part is currently active in production with 885 pieces in stock.

Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity. Alternative models within the same electrical and mechanical parameter range provide functionally compatible options for circuit applications.

Substiute Parts

ALA7DD511DF500

KEMETIn Stock: 982ALA7DD511DF500 Datasheet

Current PartRFQ

ALA7DA511DF500

KEMETIn Stock: 1169ALA7DA511DF500 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALA7DD511DF500 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 510 µF
• Voltage Rating: 500 V
• Tolerance: ±20%
• ESR @ 100 Hz: 489.8 mOhm
• Lifetime @ 85°C: 15000 Hrs
• Operating Temperature Range: -40°C to 85°C

Mechanical Parameters (Must Match):

• Package Type: Radial, Can - Snap-In
• Mounting Type: Through Hole
• Physical Dimensions: 1.378" Dia (35.00 mm), Height 2.047" (52.00 mm)

Compliance & Certification (Must Match):

• AEC-Q200 Automotive Rating
• RoHS3 Compliance
• REACH Unaffected Status

The ALA7DA511DF500 meets all substitution criteria. While ripple current ratings and impedance values differ from the main part, these parameters remain within acceptable operational ranges for the specified electrical and mechanical envelope. Both parts share identical base electrical specifications, dimensional footprint, and automotive-grade certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the ALA7DD511DF500 and ALA7DA511DF500 are active production parts manufactured by KEMET with full AEC-Q200 automotive certification and RoHS3 compliance. Selection between these parts is based on the following criteria:

ALA7DD511DF500 is the primary specification when:

• Circuit design specifies maximum ESR of 489.8 mOhm
• Ripple current requirements are 1.95 A @ 100 Hz or 4.48 A @ 10 kHz
• Impedance specification is 247 mOhms

ALA7DA511DF500 is an acceptable substitute when:

• The application tolerates higher ripple current capacity (2.58 A @ 100 Hz, 5.52 A @ 10 kHz)
• Lower impedance (175 mOhms) is compatible with circuit requirements
• All other electrical and mechanical parameters remain within design specifications

Both parts maintain identical capacitance, voltage rating, tolerance, ESR, lifetime rating, operating temperature range, physical dimensions, and mounting configuration. Substitution does not require PCB redesign or mechanical modification.

Frequently Asked Questions (FAQ)

Q: Can ALA7DA511DF500 be used as a direct replacement for ALA7DD511DF500?

A: Yes. Both parts share identical capacitance (510 µF), voltage rating (500 V), tolerance (±20%), ESR (489.8 mOhm @ 100 Hz), lifetime (15000 Hrs @ 85°C), operating temperature range (-40 to 85°C), physical dimensions (1.378" Dia × 2.047" height), and mounting type (through-hole, radial snap-in). Both are AEC-Q200 rated and RoHS3 compliant. The ALA7DA511DF500 provides higher ripple current capacity and lower impedance, which are compatible with applications designed for the ALA7DD511DF500.

Q: What are the differences between these two parts?

A: The primary differences are ripple current ratings and impedance. The ALA7DA511DF500 provides 2.58 A @ 100 Hz and 5.52 A @ 10 kHz compared to 1.95 A @ 100 Hz and 4.48 A @ 10 kHz for the ALA7DD511DF500. The ALA7DA511DF500 also has lower impedance (175 mOhms vs. 247 mOhms). All other electrical and mechanical specifications are identical.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the ALA7DD511DF500 and ALA7DA511DF500 carry AEC-Q200 automotive qualification and are approved for automotive use.

Q: Do these parts require different PCB footprints?

A: No. Both parts have identical physical dimensions (1.378" diameter, 2.047" maximum seated height) and use the same radial, can-style snap-in package. No PCB modification is required for substitution.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected.

Q: What is the current inventory status?

A: ALA7DD511DF500 has 885 pieces in stock. ALA7DA511DF500 has 1095 pieces in stock.