ALS71P912NP400 Equivalent & Substitute Parts

Part Overview

The ALS71P912NP400 is a 9100 µF, 400 V aluminum electrolytic capacitor manufactured by KEMET, designed for general purpose applications requiring high capacitance and voltage ratings. This component features screw terminals for chassis mount installation and is rated for 20,000 hours of operation at 85°C. The part is currently in active production status with 738 units available in inventory. Equivalent substitute parts are identified to provide procurement flexibility, ensure supply chain continuity, and support component selection for applications with identical electrical and mechanical requirements.

Substiute Parts

ALS71P912NP400

KEMETIn Stock: 768ALS71P912NP400 Datasheet

Current PartRFQ

ALS70A912NP400

KEMETIn Stock: 1130ALS70A912NP400 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS71P912NP400 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part ALS70A912NP400 qualifies as a parametric equivalent based on the following criteria:

Electrical Parameters (Must Match Exactly):

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

Mechanical Parameters (Must Match Exactly):

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

Compliance & Certifications (Must Match):

• RoHS Status: ROHS3 Compliant
• MSL Rating: 1 (Unlimited)
• REACH Status: REACH Unaffected

The only difference between the main part and substitute is the series designation (ALS71 vs. ALS70), which reflects internal design evolution within KEMET's product line while maintaining full parametric equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71P912NP400 and ALS70A912NP400 are active production components manufactured by KEMET with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on the following factors:

Availability: The ALS70A912NP400 substitute offers higher inventory availability (1100 units) compared to the main part (738 units), providing improved procurement lead time assurance.

Compliance: Both parts meet identical regulatory requirements, including ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring compatibility with all environmental and regulatory standards.

Electrical Performance: Complete parametric equivalence across all electrical specifications—capacitance, voltage rating, ESR, ripple current ratings, and impedance—ensures direct functional interchangeability in circuit applications.

Mechanical Compatibility: Identical physical dimensions, lead spacing, and screw terminal configuration ensure direct mechanical compatibility with existing PCB layouts and chassis mount installations.

Series Designation: The difference in series designation (ALS71 vs. ALS70) reflects KEMET's internal product line evolution and does not affect electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can ALS70A912NP400 be used as a direct replacement for ALS71P912NP400?

A: Yes. The ALS70A912NP400 is a parametric equivalent with identical electrical specifications (9100 µF, 400 V, 24 mOhm ESR, 20000 Hrs @ 85°C), identical mechanical dimensions (77.00 mm diameter, 148.00 mm height, 31.80 mm lead spacing), and identical mounting configuration (chassis mount, screw terminals). Both parts are ROHS3 compliant and have unlimited MSL rating.

Q: Are there any differences in performance between the two parts?

A: No performance differences exist. Both parts share identical capacitance, voltage rating, ESR, ripple current ratings, impedance, operating temperature range, and lifetime specifications. The series designation difference (ALS71 vs. ALS70) does not affect electrical or mechanical performance.

Q: What is the significance of the different series designations?

A: The series designation reflects KEMET's internal product line classification. ALS71 and ALS70 represent different design generations within the same product family, but both meet identical performance and compliance requirements for this specific capacitance and voltage rating.

Q: Will the substitute part fit in the same PCB layout?

A: Yes. Both parts have identical lead spacing (31.80 mm), diameter (77.00 mm), and maximum seated height (148.00 mm), ensuring direct mechanical compatibility with existing PCB designs and chassis mount installations.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both ALS71P912NP400 and ALS70A912NP400 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection may be based on inventory availability, supplier preference, or lead time requirements. The ALS70A912NP400 currently has higher inventory availability (1100 units vs. 738 units).

Q: Is there any difference in packaging or handling requirements?

A: No. Both parts have identical MSL rating (1 - Unlimited), indicating no moisture sensitivity restrictions. Packaging and handling requirements are identical.