ALS71C164NP063 Equivalent & Substitute Parts

Part Overview

The ALS71C164NP063 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 731 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, supply chain considerations, or design flexibility within the same performance envelope.

Substiute Parts

ALS71C164NP063

KEMETIn Stock: 822ALS71C164NP063 Datasheet

Current PartRFQ

ALS70A164NP063

KEMETIn Stock: 1236ALS70A164NP063 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS71C164NP063 is based on strict equivalence of the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 160000 µF
• Voltage Rating: 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):

• 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)

Compliance Parameters (Must Match):

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

The ALS70A164NP063 meets all specified criteria and is classified as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71C164NP063 and ALS70A164NP063 are active KEMET products with identical electrical performance, mechanical dimensions, and compliance certifications. The primary distinction is the series designation (ALS71 versus ALS70), which reflects internal design evolution within KEMET's product line while maintaining full parametric equivalence.

Selection between these parts should be based on:

1. Availability: The ALS70A164NP063 substitute offers higher inventory (1182 units) compared to the main part (731 units).

2. Compliance: Both parts meet ROHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating, ensuring regulatory compatibility in all applications.

3. Electrical Performance: Identical specifications across all electrical parameters, including capacitance, voltage rating, ESR, ripple current ratings, and lifetime at rated temperature.

4. Mechanical Compatibility: Identical package dimensions, lead spacing, and chassis mount configuration ensure direct mechanical interchangeability in PCB layouts and mechanical assemblies.

5. Product Status: Both parts are active in production, ensuring long-term supply chain stability and continued manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A164NP063 be used as a direct replacement for the ALS71C164NP063?

A: Yes. The ALS70A164NP063 is a parametric equivalent with identical electrical specifications, mechanical dimensions, and compliance certifications. Direct substitution is supported without circuit redesign or PCB layout modification.

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

A: The series designation reflects KEMET's internal product line evolution. Both series share identical electrical and mechanical parameters for this 160000 µF, 63 V capacitor model. The difference is internal design generation, not performance or compatibility.

Q: Are the physical dimensions identical between these parts?

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

Q: Do both parts meet the same compliance standards?

A: Yes. Both the ALS71C164NP063 and ALS70A164NP063 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating.

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

A: Substitution is based on matching capacitance (160000 µF), voltage rating (63 V), tolerance (±20%), ESR (8 mOhm @ 100Hz), lifetime (20000 Hrs @ 85°C), operating temperature range (-40°C to 85°C), and ripple current specifications (30.6 A @ 100 Hz, 32.2 A @ 10 kHz).

Q: Can these capacitors be used in high-ripple-current applications?

A: Yes. Both parts are rated for 30.6 A ripple current at 100 Hz and 32.2 A at 10 kHz, supporting applications with significant AC current components superimposed on DC bias.

Q: What is the expected operational lifetime of these capacitors?

A: Both parts are rated for 20000 hours of operation at 85°C. Actual lifetime extends significantly at lower operating temperatures following standard aluminum electrolytic capacitor temperature derating curves.

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

A: Yes. Both parts are classified for general-purpose applications and are not restricted to specialized use cases. The 160000 µF capacitance and 63 V rating support bulk energy storage, power supply filtering, and industrial equipment applications.