ALS71C912NP400 Equivalent & Substitute Parts

Part Overview

The ALS71C912NP400 is a 9100 µF, 400 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 and voltage ratings. The part is currently active in production with 1043 units in stock. Equivalent substitute parts are identified to provide design flexibility, supply chain alternatives, and component availability options for applications where the primary part number may be unavailable or where design specifications permit cross-compatibility.

Substiute Parts

ALS71C912NP400

KEMETIn Stock: 1116ALS71C912NP400 Datasheet

Current PartRFQ

ALS70A912NP400

KEMETIn Stock: 1130ALS70A912NP400 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALS71C912NP400 are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must match exactly:

Electrical Parameters (Must Match):

• Capacitance: 9100 µF
• Voltage Rating: 400 V
• Tolerance: ±20%
• ESR @ 100 Hz: 24 mOhm
• Lifetime @ 85°C: 20000 Hrs
• Operating Temperature Range: -40°C to 85°C
• Ripple Current @ 100 Hz: 18.8 A
• Ripple Current @ 10 kHz: 26.1 A
• Impedance: 16 mOhms

Mechanical Parameters (Must Match):

• Package Type: Radial, Can - Screw Terminals
• Mounting Type: Chassis Mount
• Lead Spacing: 1.252" (31.80 mm)
• Diameter: 3.031" (77.00 mm)
• Height - Seated (Max): 5.827" (148.00 mm)

The ALS70A912NP400 qualifies as a parametric equivalent because it maintains identical electrical performance and mechanical compatibility across all specified parameters. The difference between the ALS71 and ALS70 series designations reflects internal design evolution within KEMET's product line while preserving complete functional equivalence for end-use applications.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71C912NP400 and ALS70A912NP400 are active production parts manufactured by KEMET with identical electrical and mechanical specifications. Selection between these parts is based on availability and supply chain considerations rather than technical performance differences.

Compliance & Certifications: Both parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification. Moisture sensitivity level is rated at MSL 1 (Unlimited) for both parts, indicating no moisture-related handling restrictions during storage or assembly.

Inventory Availability: The ALS70A912NP400 currently has 1100 units in stock compared to 1043 units for the ALS71C912NP400. Either part may be selected based on immediate availability requirements and supply chain logistics.

Application Compatibility: Both parts are suitable for general-purpose applications requiring 9100 µF capacitance at 400 V with identical thermal and electrical performance characteristics. Chassis mount configuration with screw terminals ensures mechanical compatibility in existing designs without modification to PCB layout or mechanical assembly.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A912NP400 be used as a direct replacement for the ALS71C912NP400?

A: Yes. The ALS70A912NP400 is a parametric equivalent with identical capacitance (9100 µF), voltage rating (400 V), ESR (24 mOhm @ 100 Hz), ripple current specifications, and mechanical dimensions. Both parts are KEMET products with active production status and identical compliance certifications.

Q: Are there any differences in electrical performance between these two part numbers?

A: No. Both parts specify identical electrical parameters including capacitance tolerance (±20%), operating temperature range (-40°C to 85°C), lifetime (20000 Hrs @ 85°C), ripple current ratings at 100 Hz (18.8 A) and 10 kHz (26.1 A), and impedance (16 mOhms).

Q: Do these parts have the same physical dimensions and mounting requirements?

A: Yes. Both parts are radial, can-style capacitors with screw terminals, identical lead spacing (1.252" / 31.80 mm), diameter (3.031" / 77.00 mm), and maximum seated height (5.827" / 148.00 mm). Chassis mount configuration is identical for both parts.

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

A: The series designation reflects KEMET's internal product line evolution. Both ALS71 and ALS70 series maintain identical performance specifications for this 9100 µF, 400 V capacitor model. The difference is a design generation update within the product family while preserving complete functional equivalence.

Q: Are both parts compliant with current environmental and export regulations?

A: Yes. Both the ALS71C912NP400 and ALS70A912NP400 are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. Moisture sensitivity level is MSL 1 (Unlimited) for both parts, requiring no special moisture handling during storage or assembly.

Q: Which part should be selected if both are available?

A: Selection may be based on supply chain availability and logistics. The ALS70A912NP400 currently has higher inventory (1100 units) compared to the ALS71C912NP400 (1043 units). Both parts are active production items suitable for immediate use in applications requiring 9100 µF, 400 V aluminum electrolytic capacitors with screw terminal connections.

Q: Are there any application restrictions or limitations for either part?

A: No application restrictions are specified for either part. Both are rated for general-purpose applications within the operating temperature range of -40°C to 85°C and are suitable for use in circuits requiring high capacitance and voltage ratings with low ESR characteristics.