ALA7DF471CF450 Equivalent & Substitute Parts

Part Overview

The ALA7DF471CF450 is a 470 µF, 450 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 1007 units in stock. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part number becomes unavailable or when alternative sourcing is required.

Substiute Parts

ALA7DF471CF450

KEMETIn Stock: 1077ALA7DF471CF450 Datasheet

Current PartRFQ

ALA7DA471CF450

KEMETIn Stock: 1573ALA7DA471CF450 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALA7DF471CF450 are identified based on strict parametric equivalence within the allowed electrical and mechanical specifications for aluminum electrolytic capacitors in this category. The substitution logic is based on the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 470 µF
• Voltage Rating: 450 V
• Tolerance: ±20%
• Lifetime: 13000 Hrs @ 85°C
• Operating Temperature Range: -40°C ~ 85°C
• Polarization: Polar

Mechanical Parameters (Must Match):

• Package Type: Radial, Can - Snap-In
• Mounting Type: Through Hole
• Physical Dimensions: 1.181" Dia (30.00mm) × 2.047" Height (52.00mm)

Compliance & Ratings (Must Match):

• AEC-Q200 Automotive Rating
• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part ALA7DA471CF450 meets all critical electrical, mechanical, and compliance requirements. Variations in ESR, ripple current specifications, and impedance values are within acceptable engineering tolerances for this product category and do not disqualify the substitute from functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the ALA7DF471CF450 and ALA7DA471CF450 are active production parts manufactured by KEMET with full AEC-Q200 automotive qualification and RoHS3 compliance. Selection between these parts is based on the following engineering criteria:

Primary Selection (ALA7DF471CF450): Use when the specific base product number ALA7DF is required by design specification or when the primary part number is the established reference in existing bill of materials documentation.

Substitute Selection (ALA7DA471CF450): Use when supply of the primary part is constrained or when the ALA7DA base product number is acceptable within design flexibility parameters. The substitute part carries identical electrical performance specifications, mechanical compatibility, and automotive compliance ratings. Higher inventory availability (1532 units versus 1007 units) may support procurement lead time reduction.

Both parts are suitable for direct substitution in automotive applications requiring 470 µF, 450 V aluminum electrolytic capacitors with snap-in through-hole mounting and AEC-Q200 qualification.

Frequently Asked Questions (FAQ)

Q: Can ALA7DA471CF450 be used as a direct replacement for ALA7DF471CF450?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical capacitance (470 µF), voltage rating (450 V), tolerance (±20%), lifetime (13000 Hrs @ 85°C), operating temperature range (-40°C ~ 85°C), physical dimensions (1.181" Dia × 2.047" Height), package type (Radial, Can - Snap-In), and mounting configuration (Through Hole). Both carry AEC-Q200 automotive qualification and RoHS3 compliance.

Q: Are there differences in ripple current specifications between these parts?

A: Yes. The ALA7DF471CF450 specifies 2.18 A @ 100 Hz and 5.4 A @ 10 kHz, while the ALA7DA471CF450 specifies 1.99 A @ 100 Hz and 4.77 A @ 10 kHz. These differences do not affect substitution eligibility, as both parts meet the core electrical requirements for this product category and maintain identical ESR values (322.4 mOhm @ 100Hz).

Q: Do both parts fit the same PCB footprint and snap-in mounting hardware?

A: Yes. Both parts have identical physical dimensions (1.181" Dia, 30.00mm) and height (2.047", 52.00mm). Both use radial, can-style snap-in packaging with through-hole mounting. No PCB layout or mechanical assembly modifications are required when substituting between these parts.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the ALA7DF471CF450 and ALA7DA471CF450 carry AEC-Q200 automotive qualification and are rated for automotive applications. Both comply with RoHS3 requirements and carry MSL Level 1 (Unlimited) moisture sensitivity ratings.

Q: Which part should be selected for new designs?

A: Either part is acceptable for new designs. Selection may be based on inventory availability, supplier preference, or existing supply chain relationships. Both parts are active production items with equivalent performance and compliance profiles.