ALS70H511DB450 Equivalent & Substitute Parts

Part Overview

The ALS70H511DB450 is an aluminum electrolytic capacitor manufactured by KEMET, rated at 510 µF capacitance with 450 V voltage rating. This component is designed for general-purpose applications requiring high-voltage energy storage and filtering in chassis-mounted configurations with screw terminals. The part is currently in active production status with 922 units in stock inventory. Equivalent substitute parts are identified to provide procurement flexibility, inventory management options, and supply chain continuity when the primary part number becomes unavailable or when alternative sourcing is required.

Substiute Parts

ALS70H511DB450

KEMETIn Stock: 979ALS70H511DB450 Datasheet

Current PartRFQ

ALS70A511DB450

KEMETIn Stock: 872ALS70A511DB450 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALS70H511DB450 are identified based on strict parametric equivalence within the KEMET ALS70 series aluminum electrolytic capacitor family. The substitution logic is based on the following critical parameters that must remain constant across all equivalent parts:

Critical Matching Parameters:

• Capacitance: 510 µF (exact match required)
• Voltage Rating: 450 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: Radial, Can - Screw Terminals (exact match required)
• Mounting Type: Chassis Mount (exact match required)
• Lead Spacing: 0.504" (12.80mm) (exact match required)
• Physical Dimensions: 1.417" Dia × 2.520" Height (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Lifetime Rating: 11000 Hrs @ 85°C (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Allowable Variation Parameters:

• ESR @ 100Hz: Minor variations within manufacturing tolerance
• Impedance: Minor variations within manufacturing tolerance
• Ripple Current specifications: Consistent across series variants

The ALS70A511DB450 qualifies as a parametric equivalent substitute because it maintains all critical matching parameters while operating within acceptable ESR and impedance tolerances established for the ALS70 series.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS70H511DB450 and ALS70A511DB450 are active production parts manufactured by KEMET with identical compliance certifications. Selection between these parts should be based on the following engineering criteria:

Compliance & Regulatory: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for industrial and commercial applications.

Product Availability: The ALS70H511DB450 currently has 922 units in stock inventory, while the ALS70A511DB450 has 843 units available. Either part can be selected based on procurement lead time requirements and inventory availability at the time of component sourcing.

Electrical Performance: The ESR differential between the two parts is 1 mOhm (336 mOhm vs. 337 mOhm), which falls within standard manufacturing tolerances for aluminum electrolytic capacitors and does not impact circuit performance in general-purpose applications.

Mechanical Compatibility: Both parts are identical in physical dimensions, lead spacing, and mounting configuration, ensuring direct mechanical interchangeability in chassis-mounted screw terminal installations.

Application Suitability: Both parts are rated for identical ripple current specifications, lifetime ratings, and operating temperature ranges, confirming functional equivalence for general-purpose high-voltage filtering and energy storage applications.

Frequently Asked Questions (FAQ)

Q: Can ALS70A511DB450 be used as a direct replacement for ALS70H511DB450?

A: Yes. The ALS70A511DB450 is a parametric equivalent substitute with identical capacitance, voltage rating, tolerance, package type, mounting configuration, and physical dimensions. The 1 mOhm ESR difference is within manufacturing tolerance for the ALS70 series and does not affect circuit performance.

Q: Are there any mechanical compatibility issues when substituting these parts?

A: No. Both parts share identical lead spacing (0.504" / 12.80mm), diameter (1.417" / 36.00mm), and maximum seated height (2.520" / 64.00mm). They are mechanically interchangeable in all chassis-mounted screw terminal applications.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both ALS70H511DB450 and ALS70A511DB450 are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for industrial and commercial component applications.

Q: What is the difference between the ALS70H and ALS70A base product numbers?

A: The base product numbers (ALS70H vs. ALS70A) indicate different internal design variants within the KEMET ALS70 series. However, when the full part numbers are identical except for the base designation, the parts are parametrically equivalent with only minor ESR variations within acceptable tolerances.

Q: Can I mix ALS70H511DB450 and ALS70A511DB450 in the same circuit or application?

A: Yes. Both parts have identical electrical ratings, ripple current specifications, and lifetime ratings. They can be used interchangeably or in parallel configurations without performance degradation.

Q: What should I consider when choosing between these two substitute parts?

A: Selection should be based on current inventory availability and procurement lead times. The ALS70H511DB450 has higher stock levels (922 units vs. 843 units). Both parts are active production items with identical performance characteristics and compliance certifications.

Q: Are there any temperature or environmental limitations I should be aware of?

A: Both parts operate identically across the -40°C to 85°C temperature range with 11000 hours lifetime rating at 85°C. Moisture sensitivity level is 1 (unlimited) for both parts, indicating no special storage or handling requirements.