ALS71A513NF100 Equivalent & Substitute Parts

Part Overview

The ALS71A513NF100 is a 51000 µF, 100 V aluminum electrolytic capacitor manufactured by KEMET in the ALS71 series. This radial, can-style capacitor with screw terminals is designed for general-purpose applications requiring high capacitance values at moderate voltage ratings. The part is currently in active production status with 1146 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, design flexibility, or application-specific needs.

Substiute Parts

ALS71A513NF100

KEMETIn Stock: 1246ALS71A513NF100 Datasheet

Current PartRFQ

ALS70A513NF100

KEMETIn Stock: 872ALS70A513NF100 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALS71A513NF100 are identified based on strict equivalence of the following critical parameters:

Electrical Equivalence Criteria:

• Capacitance: 51000 µF (exact match required)
• Voltage Rating: 100 V (exact match required)
• Tolerance: ±20% (exact match required)
• ESR @ 100Hz: 12 mOhm (exact match required)
• Lifetime @ 85°C: 20000 Hrs (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Ripple Current @ 100 Hz: 25.7 A (exact match required)
• Ripple Current @ 10 kHz: 27.9 A (exact match required)

Mechanical Equivalence Criteria:

• Package Type: Radial, Can - Screw Terminals (exact match required)
• Mounting Type: Chassis Mount (exact match required)
• Lead Spacing: 1.252" (31.80mm) (exact match required)
• Diameter: 3.031" (77.00mm) (exact match required)
• Height - Seated (Max): 4.213" (107.00mm) (exact match required)

Compliance Equivalence Criteria:

• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

The ALS70A513NF100 meets all electrical, mechanical, and compliance criteria for direct substitution with the ALS71A513NF100. The primary difference is the series designation (ALS70 versus ALS71), which reflects manufacturing series evolution within KEMET's product line while maintaining identical performance specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71A513NF100 and ALS70A513NF100 are active products manufactured by KEMET with identical electrical performance, mechanical dimensions, and compliance certifications. Selection between these parts should be based on the following factors:

Primary Selection Criteria:

• Inventory Availability: The ALS71A513NF100 has 1146 units in stock, while the ALS70A513NF100 has 786 units in stock. Choose based on required delivery timeline and quantity needs.
• Series Continuity: If existing designs or documentation reference the ALS71 series, maintain that designation for consistency.
• Compliance Requirements: Both parts meet ROHS3 compliance and have MSL rating of 1 (Unlimited), suitable for all standard storage and handling conditions.

Interchangeability Confirmation: The ALS70A513NF100 is a direct functional and mechanical equivalent to the ALS71A513NF100. No circuit modifications, PCB layout changes, or thermal management adjustments are required when substituting between these parts. Both parts are rated for identical ripple current handling at low frequency (25.7 A @ 100 Hz) and high frequency (27.9 A @ 10 kHz), ensuring equivalent performance in power supply and filtering applications.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A513NF100 be used as a direct replacement for the ALS71A513NF100 without any circuit modifications?

A: Yes. The ALS70A513NF100 is electrically and mechanically equivalent to the ALS71A513NF100. All electrical parameters, including capacitance, voltage rating, ESR, ripple current ratings, and lifetime specifications are identical. Physical dimensions and screw terminal lead spacing are also identical, allowing direct substitution in existing PCB designs and chassis assemblies without modification.

Q: Are there any differences in thermal performance between the ALS71A513NF100 and ALS70A513NF100?

A: No. Both parts have identical thermal specifications: 20000 hours lifetime at 85°C and an operating temperature range of -40°C to 85°C. ESR values are identical at 12 mOhm @ 100Hz, which directly determines heat dissipation characteristics. Thermal performance in the application circuit will be equivalent.

Q: What is the significance of the series designation difference (ALS71 versus ALS70)?

A: The series designation reflects KEMET's product line evolution and manufacturing generation. However, this designation change does not affect electrical performance, mechanical compatibility, or compliance status. Both series are currently in active production and meet identical specifications for this 51000 µF, 100 V capacitor model.

Q: Are both parts suitable for high-ripple-current applications?

A: Yes. Both the ALS71A513NF100 and ALS70A513NF100 are rated for 25.7 A ripple current at 100 Hz and 27.9 A ripple current at 10 kHz. These ratings are identical and suitable for power supply filtering, energy storage, and general-purpose applications requiring sustained ripple current handling.

Q: Do both parts require the same mounting and handling procedures?

A: Yes. Both parts are chassis-mount components with screw terminals, identical lead spacing (1.252" / 31.80mm), and identical physical dimensions (3.031" diameter, 4.213" maximum seated height). Mounting procedures, terminal torque specifications, and handling requirements are identical. Both parts have MSL rating 1 (Unlimited), requiring no special moisture control during storage or assembly.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection should be based on current inventory availability and supply chain considerations. Both parts are active products with identical specifications and compliance certifications. Consult with your supplier regarding lead times and stock levels for your required quantity and delivery schedule.