ALS71C754QT040 Equivalent & Substitute Parts

Part Overview

The ALS71C754QT040 is a 750000 µF aluminum electrolytic capacitor rated at 40 V with screw terminals, manufactured by KEMET. This large-capacitance, chassis-mount component is designed for general-purpose applications requiring high capacitance storage in a radial can configuration. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same functional category, enabling component interchangeability in system designs.

Substiute Parts

ALS71C754QT040

KEMETIn Stock: 1141ALS71C754QT040 Datasheet

Current PartRFQ

ALS70A754QT040

KEMETIn Stock: 811ALS70A754QT040 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALS71C754QT040 are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution criteria are:

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 Range: -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
• Diameter: 90.00 mm
• Height - Seated (Max): 222.00 mm
• Package / Case: Radial, Can - Screw Terminals
• Mounting Type: Chassis Mount

Compliance Parameters (Must Match Exactly):

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

The ALS70A754QT040 meets all substitution criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71C754QT040 and ALS70A754QT040 are active production parts manufactured by KEMET with identical electrical and mechanical specifications. Selection between these parts is based on availability and inventory status:

ALS71C754QT040: 1064 pieces in stock. Primary selection when availability is not constrained.

ALS70A754QT040: 781 pieces in stock. Alternative selection when primary part is unavailable or when supply chain optimization requires secondary sourcing.

Both parts carry ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. The series designation difference (ALS71 vs. ALS70) reflects internal KEMET product line organization and does not affect functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can ALS70A754QT040 be used as a direct replacement for ALS71C754QT040?

A: Yes. The ALS70A754QT040 is a parametric equivalent with identical capacitance (750000 µF), voltage rating (40 V), ESR (5 mOhm @ 100Hz), ripple current specifications, and mechanical dimensions. Direct substitution is supported without circuit modification.

Q: Are the screw terminal connections identical between these parts?

A: Yes. Both parts use identical Radial, Can - Screw Terminals configuration with 31.80 mm lead spacing, ensuring mechanical and electrical compatibility in chassis-mount applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both ALS71C754QT040 and ALS70A754QT040 are ROHS3 compliant with MSL rating of 1 (Unlimited). REACH status is unaffected for both parts.

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

A: The series designation reflects KEMET's internal product line organization. From an engineering perspective, both series share identical electrical and mechanical parameters for this 750000 µF 40 V specification.

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

A: No. Both parts specify 20000 hours lifetime at 85°C and operate across the identical temperature range of -40°C to 85°C.

Q: Can these parts be used interchangeably in PCB designs?

A: These are chassis-mount components with screw terminals, not PCB-mounted parts. They are used in applications requiring large-value capacitance storage with direct mechanical fastening to enclosures or chassis structures.