ALS71U164NP063 Equivalent & Substitute Parts

Part Overview

The ALS71U164NP063 is a 160000 µF, 63 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 and extended operational life. The part is currently active in production with 1019 units in stock. Equivalent substitute parts are identified to provide procurement flexibility, ensure supply chain continuity, and support design alternatives when the primary part becomes unavailable or when inventory constraints require alternative sourcing.

Substiute Parts

ALS71U164NP063

KEMETIn Stock: 1125ALS71U164NP063 Datasheet

Current PartRFQ

ALS70A164NP063

KEMETIn Stock: 1236ALS70A164NP063 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS71U164NP063 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Capacitance: 160000 µF
• Rated Voltage: 63 V
• Tolerance: ±20%
• ESR @ 100Hz: 8 mOhm
• Lifetime @ 85°C: 20000 Hrs
• Operating Temperature Range: -40°C to 85°C
• Ripple Current @ 100 Hz: 30.6 A
• Ripple Current @ 10 kHz: 32.2 A
• Impedance: 9 mOhms

Mechanical Parameters (Must Match Exactly):

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

Compliance & Status (Must Match):

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

The ALS70A164NP063 meets all substitution criteria and is classified as a parametric equivalent. The primary difference is the series designation (ALS70 versus ALS71), which reflects internal design evolution within KEMET's product line while maintaining identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71U164NP063 and ALS70A164NP063 are active, production-status components manufactured by KEMET with identical electrical and mechanical specifications. Selection between these parts is based on the following engineering criteria:

Primary Selection (ALS71U164NP063):

• Use when the ALS71 series is specified in design documentation
• Current inventory: 1019 units available
• Established supply chain for this series designation

Alternative Selection (ALS70A164NP063):

• Use when ALS71U164NP063 availability is constrained
• Higher current inventory: 1182 units available
• Identical performance characteristics and compliance certifications
• Direct mechanical and electrical substitution without circuit redesign

Both parts comply with ROHS3 and REACH requirements, carry MSL Level 1 (unlimited moisture sensitivity), and are classified as EAR99 for export control purposes. Selection should be based on procurement availability and supply chain logistics rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A164NP063 be used as a direct replacement for the ALS71U164NP063?

A: Yes. The ALS70A164NP063 is a parametric equivalent with identical capacitance (160000 µF), voltage rating (63 V), ESR (8 mOhm @ 100Hz), lifetime (20000 Hrs @ 85°C), ripple current specifications, and mechanical dimensions. No circuit modifications are required.

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

A: The series designation reflects internal design evolution within KEMET's aluminum electrolytic capacitor product line. Both series meet identical electrical and mechanical specifications for this 160000 µF, 63 V rating. The difference is manufacturing lineage, not performance.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts have identical lead spacing (1.252" / 31.80mm), diameter (3.031" / 77.00mm), and maximum seated height (5.827" / 148.00mm). They are mechanically interchangeable in chassis-mount applications.

Q: Do both parts have the same compliance certifications?

A: Yes. Both the ALS71U164NP063 and ALS70A164NP063 are ROHS3 compliant, REACH unaffected, carry MSL Level 1 (unlimited), and are classified as EAR99 for export control.

Q: What is the operating temperature range for these capacitors?

A: Both parts operate across -40°C to 85°C. The rated lifetime of 20000 hours applies at the maximum operating temperature of 85°C.

Q: Can these capacitors handle the specified ripple current?

A: Yes. Both parts are rated for 30.6 A ripple current at 100 Hz and 32.2 A ripple current at 10 kHz. These ratings determine the maximum AC current the capacitor can safely dissipate without exceeding temperature limits.

Q: What does the ±20% tolerance mean?

A: The capacitance value of 160000 µF can vary by ±20% from the nominal value. This means the actual capacitance will fall between 128000 µF and 192000 µF. Both substitute parts carry identical tolerance specifications.

Q: Are these parts suitable for general-purpose applications?

A: Yes. Both the ALS71U164NP063 and ALS70A164NP063 are classified for general-purpose applications. They are designed for bulk energy storage, filtering, and smoothing in power supply circuits and industrial equipment.