ALS71H511DA400 Equivalent & Substitute Parts

Part Overview

The ALS71H511DA400 is a 510 µF, 400 V aluminum electrolytic capacitor manufactured by KEMET, designed for general-purpose applications requiring high-voltage energy storage and filtering. This radial, can-style capacitor features screw terminals for secure chassis mounting and is rated for 11,000 hours of operation at 85°C. The part maintains Active product status and is ROHS3 compliant, making it suitable for modern industrial and power electronics applications. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category, ensuring direct functional interchangeability without circuit redesign.

Substiute Parts

ALS71H511DA400

KEMETIn Stock: 959ALS71H511DA400 Datasheet

Current PartRFQ

ALS70A511DA400

KEMETIn Stock: 815ALS70A511DA400 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALS71H511DA400 are identified based on strict electrical and mechanical parameter equivalence within the aluminum electrolytic capacitor category. The substitution criteria are:

Electrical Parameters (Must Match):

• Capacitance: 510 µF
• Voltage Rating: 400 V
• Tolerance: ±20%
• ESR @ 100Hz: 304 mOhm
• Lifetime @ 85°C: 11000 Hrs
• Operating Temperature Range: -40°C to 85°C
• Ripple Current @ 100Hz: 3.1 A
• Ripple Current @ 10kHz: 6.9 A
• Impedance: 172 mOhms

Mechanical Parameters (Must Match):

• Lead Spacing: 12.80 mm
• Diameter: 36.00 mm
• Height (Seated Max): 54.00 mm
• Package Type: Radial, Can - Screw Terminals
• Mounting Type: Chassis Mount

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The ALS70A511DA400 qualifies as a parametric equivalent substitute because it maintains all electrical, mechanical, and compliance specifications identical to the main part, differing only in the internal series designation (ALS70 versus ALS71).

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71H511DA400 and ALS70A511DA400 are Active products manufactured by KEMET with identical electrical and mechanical specifications. Selection between these parts is based on availability and inventory status:

• ALS71H511DA400: 873 pieces in stock
• ALS70A511DA400: 792 pieces in stock

Both parts maintain ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements for industrial and commercial applications. The series designation difference (ALS71 versus ALS70) reflects internal product line evolution within KEMET's aluminum electrolytic capacitor portfolio, with no impact on functional performance or circuit compatibility. Direct substitution is permissible in all applications where the ALS71H511DA400 is specified.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A511DA400 be used as a direct replacement for the ALS71H511DA400?

A: Yes. Both parts are manufactured by KEMET and maintain identical electrical parameters (510 µF, 400 V, ±20% tolerance, 304 mOhm ESR @ 100Hz, 11000 Hrs @ 85°C), mechanical dimensions (36.00 mm diameter, 54.00 mm height, 12.80 mm lead spacing), and compliance certifications (ROHS3, REACH unaffected). Direct substitution is permissible without circuit modification.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution eligibility is determined by matching capacitance (510 µF), voltage rating (400 V), tolerance (±20%), ESR (304 mOhm @ 100Hz), lifetime rating (11000 Hrs @ 85°C), operating temperature range (-40 to 85°C), ripple current specifications (3.1 A @ 100Hz, 6.9 A @ 10kHz), and impedance (172 mOhms).

Q: Are the mechanical dimensions identical between these parts?

A: Yes. Both parts feature identical mechanical specifications: 36.00 mm diameter, 54.00 mm seated height, 12.80 mm lead spacing, radial can package with screw terminals, and chassis mount configuration.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both the ALS71H511DA400 and ALS70A511DA400 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for industrial electronics applications.

Q: What is the difference between the ALS71 and ALS70 series designations?

A: The series designation reflects internal product line classification within KEMET's aluminum electrolytic capacitor portfolio. Both series maintain identical electrical and mechanical performance for this 510 µF, 400 V specification.