ALS70U622NF450 Equivalent & Substitute Parts

Part Overview

The ALS70U622NF450 is a 6200 µF, 450 V aluminum electrolytic capacitor manufactured by KEMET in the ALS70 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 688 units in stock. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part number becomes unavailable or when alternative sourcing is required.

Substiute Parts

ALS70U622NF450

KEMETIn Stock: 737ALS70U622NF450 Datasheet

Current PartRFQ

ALS70A622NF450

KEMETIn Stock: 1005ALS70A622NF450 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of aluminum electrolytic capacitors is determined by strict equivalence across electrical and mechanical parameters. The ALS70U622NF450 and its identified substitute ALS70A622NF450 are classified as parametric equivalents based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Capacitance: 6200 µF
• Rated Voltage: 450 V
• Tolerance: ±20%
• ESR @ 100Hz: 37 mOhm
• Lifetime @ 85°C: 20000 Hrs
• Operating Temperature Range: -40°C ~ 85°C
• Ripple Current @ 100 Hz: 15.6 A
• Ripple Current @ 10 kHz: 22.2 A
• Impedance: 25 mOhms

Mechanical Parameters (Must Match Exactly):

• Package / Case: Radial, Can - Screw Terminals
• Mounting Type: Chassis Mount
• Size / Dimension: 3.031" Dia (77.00mm)
• Height - Seated (Max): 4.213" (107.00mm)
• Lead Spacing: 1.252" (31.80mm)

Compliance & Certification (Must Match Exactly):

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

The only difference between the main part and substitute is the base product number designation (ALS70U versus ALS70A), which reflects internal KEMET series classification but does not affect functional performance or physical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS70U622NF450 and ALS70A622NF450 are active production parts manufactured by KEMET with identical electrical and mechanical specifications. Selection between these parts is based on availability and inventory status:

ALS70U622NF450: 688 units in stock. Primary selection when available.

ALS70A622NF450: 934 units in stock. Alternative selection for enhanced supply chain availability.

Both parts meet ROHS3 compliance and REACH unaffected status, making them suitable for applications requiring regulatory compliance. The identical electrical performance, physical dimensions, and thermal characteristics ensure direct interchangeability in circuit designs and PCB layouts. No circuit modifications, thermal analysis adjustments, or mechanical redesign are required when substituting between these part numbers.

Frequently Asked Questions (FAQ)

Q: Are ALS70U622NF450 and ALS70A622NF450 electrically identical?

A: Yes. Both parts have identical capacitance (6200 µF), voltage rating (450 V), ESR (37 mOhm @ 100Hz), ripple current ratings, impedance, and operating temperature range. They are parametric equivalents.

Q: Can I use ALS70A622NF450 as a direct replacement for ALS70U622NF450 on an existing PCB?

A: Yes. The parts have identical physical dimensions, lead spacing (1.252"), diameter (3.031"), height (4.213"), and mounting type (Chassis Mount, Screw Terminals). No PCB layout modifications are required.

Q: What is the difference between ALS70U and ALS70A designations?

A: The difference is a base product number classification within KEMET's ALS70 series. This designation does not affect electrical performance, physical compatibility, or functional characteristics.

Q: Are both parts RoHS compliant?

A: Yes. Both ALS70U622NF450 and ALS70A622NF450 are ROHS3 compliant and REACH unaffected.

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

A: Selection is based on inventory availability and procurement lead time. ALS70A622NF450 currently has higher stock (934 units versus 688 units). Both parts are functionally and mechanically identical.

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

A: Both parts operate from -40°C to 85°C with a rated lifetime of 20000 hours at 85°C.

Q: Can these capacitors handle the specified ripple current?

A: Yes. Both parts are rated for 15.6 A ripple current at 100 Hz and 22.2 A ripple current at 10 kHz.