ALS71C622NF450 Equivalent & Substitute Parts

Part Overview

The ALS71C622NF450 is a 6200 µF, 450 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 741 units in stock. Equivalent substitute parts may be required due to supply chain constraints, design revisions, or manufacturing transitions between related product series.

Substiute Parts

ALS71C622NF450

KEMETIn Stock: 770ALS71C622NF450 Datasheet

Current PartRFQ

ALS70A622NF450

KEMETIn Stock: 1005ALS70A622NF450 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS71C622NF450 is based on strict electrical and mechanical parameter matching within KEMET's aluminum electrolytic capacitor portfolio. The substitute part ALS70A622NF450 qualifies as a parametric equivalent because it maintains identical specifications across all critical selection criteria:

Critical Matching Parameters:

• Capacitance: 6200 µF (exact match)
• Voltage Rating: 450 V (exact match)
• Tolerance: ±20% (exact match)
• ESR @ 100Hz: 37 mOhm (exact match)
• Lifetime @ 85°C: 20000 Hrs (exact match)
• Operating Temperature: -40°C to 85°C (exact match)
• Ripple Current @ 100 Hz: 15.6 A (exact match)
• Ripple Current @ 10 kHz: 22.2 A (exact match)
• Impedance: 25 mOhms (exact match)
• Physical Dimensions: 77.00 mm Dia × 107.00 mm Height (exact match)
• Lead Spacing: 31.80 mm (exact match)
• Package Type: Radial, Can - Screw Terminals (exact match)
• Mounting: Chassis Mount (exact match)
• Compliance: ROHS3 Compliant, MSL 1 (exact match)

The difference between ALS71C and ALS70A represents a series designation change within KEMET's product line, not a functional or performance variation.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71C622NF450 and ALS70A622NF450 are active products manufactured by KEMET with full ROHS3 compliance and identical electrical and mechanical specifications. Selection between these parts should be based on:

Availability: The ALS70A622NF450 substitute has higher inventory availability (934 units versus 741 units), making it suitable for high-volume procurement or extended lead-time mitigation.

Compliance: Both parts meet ROHS3 requirements and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent reliability in storage and handling.

Series Designation: The transition from ALS71 to ALS70A series represents a product line evolution within KEMET's portfolio. Both series maintain identical performance characteristics for this capacitance and voltage rating.

Direct Substitution: The ALS70A622NF450 is a direct functional and mechanical substitute for the ALS71C622NF450 with no design modifications required.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A622NF450 be used as a direct replacement for the ALS71C622NF450 in existing designs?

A: Yes. The ALS70A622NF450 is a direct substitute with identical electrical performance, physical dimensions, lead spacing, and mounting configuration. No circuit modifications or PCB layout changes are required.

Q: Are there any differences in reliability or lifetime between these two parts?

A: No. Both parts specify 20000 hours lifetime at 85°C with identical ESR, ripple current ratings, and operating temperature ranges.

Q: What is the difference between the ALS71 and ALS70A series designations?

A: The series designation reflects KEMET's product line organization. For the 6200 µF, 450 V specification, both series deliver identical performance and are interchangeable.

Q: Do both parts have the same physical footprint?

A: Yes. Both parts have identical dimensions (77.00 mm diameter, 107.00 mm height), lead spacing (31.80 mm), and screw terminal configuration, ensuring mechanical compatibility in chassis-mount applications.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant with MSL 1 (Unlimited) ratings and identical REACH and ECCN classifications.

Q: Which part should be selected for new designs?

A: Selection should be based on current availability and supply chain requirements. Both parts are active products with equivalent technical specifications and compliance status.

Q: Can these parts be mixed in the same assembly?

A: Yes. Since all electrical and mechanical parameters are identical, both parts can be used interchangeably within the same production batch or assembly without performance impact.