ALS71U622NF450 Equivalent & Substitute Parts

Part Overview

The ALS71U622NF450 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 product status with 1083 units in stock. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when design requirements permit cross-series compatibility.

Substiute Parts

ALS71U622NF450

KEMETIn Stock: 1186ALS71U622NF450 Datasheet

Current PartRFQ

ALS70A622NF450

KEMETIn Stock: 1005ALS70A622NF450 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALS71U622NF450 are identified based on strict parametric equivalence across electrical and mechanical specifications. The substitution logic is based on the following critical parameters that must remain constant:

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

The ALS70A622NF450 qualifies as a parametric equivalent substitute because it maintains identical electrical performance and mechanical compatibility across all specified parameters. The difference between ALS71 and ALS70 series designations reflects internal design evolution within KEMET's product line while preserving functional equivalence for this specific capacitance and voltage combination.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71U622NF450 and ALS70A622NF450 are Active products manufactured by KEMET with full ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Selection between these parts should be based on:

Primary Selection Criteria:

• Inventory Availability: ALS71U622NF450 has 1083 units in stock; ALS70A622NF450 has 934 units in stock
• Product Status: Both parts maintain Active status, ensuring continued manufacturer support and availability
• Compliance Requirements: Both parts satisfy ROHS3 and REACH requirements

Substitution Applicability: The ALS70A622NF450 is a direct parametric equivalent and may be used as a substitute when the ALS71U622NF450 is unavailable. The series designation change (ALS71 to ALS70) reflects product line evolution but does not affect electrical performance or mechanical compatibility for this specific capacitance and voltage rating.

No Additional Testing Required: All electrical and mechanical parameters are identical. Direct substitution is supported without circuit redesign or performance verification when both parts are specified for the same application.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A622NF450 be used as a direct replacement for the ALS71U622NF450?

A: Yes. The ALS70A622NF450 is a parametric equivalent substitute. All electrical specifications (capacitance, voltage, ESR, ripple current, impedance, lifetime) and mechanical dimensions (diameter, height, lead spacing) are identical. Both parts are ROHS3 compliant with MSL 1 rating and Active product status.

Q: Are there any differences in the screw terminal design between these two parts?

A: No. Both parts use identical Radial, Can - Screw Terminals package configuration with 31.80 mm lead spacing. Physical mounting and electrical connection are identical.

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

A: The series designation reflects KEMET's internal product line classification. For the 6200 µF, 450 V specification, both series deliver identical electrical performance and mechanical compatibility. The series difference does not affect substitution eligibility.

Q: Can I mix ALS71U622NF450 and ALS70A622NF450 parts in the same circuit or assembly?

A: Yes. Both parts have identical electrical and mechanical specifications, making them fully interchangeable within the same circuit or assembly without performance degradation.

Q: What compliance certifications apply to both substitute parts?

A: Both the ALS71U622NF450 and ALS70A622NF450 are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. MSL rating is 1 (Unlimited) for both parts.

Q: Are there any thermal or ripple current differences between these parts?

A: No. Both parts have identical thermal lifetime (20000 Hrs @ 85°C), operating temperature range (-40°C ~ 85°C), and ripple current ratings (15.6 A @ 100 Hz and 22.2 A @ 10 kHz).

Q: Which part should I select if both are available?

A: Selection may be based on inventory availability, lead time, or procurement preference. From an engineering standpoint, both parts are functionally equivalent. The ALS71U622NF450 currently has higher inventory (1083 units vs. 934 units).