ALS70H754QT040 Equivalent & Substitute Parts

Part Overview

The ALS70H754QT040 is a 750000 µF, 40 V aluminum electrolytic capacitor manufactured by KEMET in the ALS70 series. This large-capacity radial capacitor with screw terminals is designed for general-purpose applications requiring high capacitance storage in chassis-mount configurations. The part is currently Active in product status and maintains full RoHS3 compliance. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory constraints require component flexibility within equivalent electrical and mechanical specifications.

Substiute Parts

ALS70H754QT040

KEMETIn Stock: 816ALS70H754QT040 Datasheet

Current PartRFQ

ALS70A754QT040

KEMETIn Stock: 811ALS70A754QT040 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS70H754QT040 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part ALS70A754QT040 qualifies as a direct parametric equivalent based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Capacitance: 750000 µF
• Voltage Rating: 40 V
• Tolerance: ±20%
• ESR @ 100Hz: 5 mOhm
• Lifetime @ 85°C: 20000 Hrs
• Operating Temperature: -40°C to 85°C
• Ripple Current @ 100 Hz: 42.7 A
• Ripple Current @ 10 kHz: 43.7 A
• Impedance: 7 mOhms

Mechanical Parameters (Must Match Exactly):

• Lead Spacing: 31.80 mm (1.252")
• Diameter: 90.00 mm (3.543")
• Height - Seated (Max): 222.00 mm (8.740")
• Mounting Type: Chassis Mount
• Package / Case: Radial, Can - Screw Terminals
• Polarization: Polar

Compliance & Certification (Must Match):

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

The substitute part differs only in the base product number designation (ALS70A versus ALS70H), indicating a variant within the same KEMET ALS70 series with identical performance characteristics and physical form factor.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS70H754QT040 and ALS70A754QT040 are Active products manufactured by KEMET with full ROHS3 compliance and REACH Unaffected status. Selection between these parts is based on availability and inventory position rather than technical differentiation.

The ALS70H754QT040 maintains 770 pieces in current inventory stock. The ALS70A754QT040 maintains 781 pieces in current inventory stock. Both parts are supplied in Bulk packaging and are suitable for immediate deployment in applications requiring 750000 µF capacitance at 40 V with screw terminal connections.

For applications requiring chassis-mount aluminum electrolytic capacitors with high ripple current handling (42.7 A @ 100 Hz, 43.7 A @ 10 kHz) and extended operational life (20000 hours @ 85°C), either part number satisfies the electrical and mechanical requirements without modification to circuit design or PCB layout.

Frequently Asked Questions (FAQ)

Q: Can ALS70A754QT040 be used as a direct replacement for ALS70H754QT040?

A: Yes. The ALS70A754QT040 is a direct parametric equivalent. All electrical specifications, mechanical dimensions, lead spacing, mounting configuration, and compliance certifications are identical. The parts differ only in the base product number designation within the KEMET ALS70 series.

Q: Are there any differences in physical dimensions between these parts?

A: No. Both parts share identical physical specifications: 90.00 mm diameter, 222.00 mm maximum seated height, and 31.80 mm lead spacing. Both are configured as radial, can-type capacitors with screw terminals for chassis mounting.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both ALS70H754QT040 and ALS70A754QT040 are ROHS3 Compliant, REACH Unaffected, and carry MSL Rating 1 (Unlimited). They are suitable for applications with identical regulatory requirements.

Q: What is the significance of the different base product numbers (ALS70H vs. ALS70A)?

A: The base product number variation indicates different product variants within the KEMET ALS70 series. However, for the 750000 µF, 40 V specification, both variants deliver identical electrical performance, mechanical form factor, and operational characteristics.

Q: Are these parts suitable for high-ripple-current applications?

A: Yes. Both parts are rated for 42.7 A ripple current at 100 Hz and 43.7 A ripple current at 10 kHz, with ESR of 5 mOhm @ 100Hz. These specifications support applications requiring sustained high-frequency ripple current handling.

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

A: Both parts are rated for 20000 hours of operation at 85°C. Operating temperature range is -40°C to 85°C. Actual lifetime depends on operating conditions, ambient temperature, and applied ripple current within the specified limits.

Q: Can these parts be used in series or parallel configurations?

A: These are large-format, screw-terminal aluminum electrolytic capacitors designed for single-unit deployment in chassis-mount applications. Series or parallel configurations require circuit-level analysis and are outside the scope of direct substitution equivalence.

Q: What packaging format is supplied?

A: Both parts are supplied in Bulk packaging. They are not surface-mount components and require manual placement and screw-terminal connection to the circuit board or chassis.