ALS71H754QT040 Equivalent & Substitute Parts

Part Overview

The ALS71H754QT040 is a 750000 µF, 40 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 values with extended operational lifetime. The part is currently in active production status with 782 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to component availability, supply chain considerations, or design flexibility within the same performance envelope.

Substiute Parts

ALS71H754QT040

KEMETIn Stock: 836ALS71H754QT040 Datasheet

Current PartRFQ

ALS70A754QT040

KEMETIn Stock: 811ALS70A754QT040 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALS71H754QT040 are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

Electrical Parameters (Must Match):

• 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):

• Lead Spacing: 31.80 mm
• Diameter: 90.00 mm
• Height: 222.00 mm (Max)
• Mounting Type: Chassis Mount
• Package: Radial, Can - Screw Terminals

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Polarization: Polar
• Product Status: Active

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

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71H754QT040 and ALS70A754QT040 are active production parts manufactured by KEMET with full ROHS3 compliance. The parts are electrically and mechanically identical across all specified parameters. Selection between these parts is based on availability and supply chain considerations. Both parts carry REACH Unaffected status and EAR99 export classification. The choice between ALS71H and ALS70A series designations does not affect functional performance within the specified electrical and mechanical envelope. Current inventory shows 782 units of ALS71H754QT040 and 781 units of ALS70A754QT040 in stock.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A754QT040 be used as a direct replacement for the ALS71H754QT040?

A: Yes. The ALS70A754QT040 is a parametric equivalent substitute. All electrical parameters, mechanical dimensions, mounting specifications, and compliance certifications are identical. The parts are interchangeable within the same circuit design.

Q: What is the difference between the ALS71H and ALS70A series designations?

A: The series designation reflects internal KEMET product line organization. Both series share identical electrical performance, physical dimensions, and terminal configurations for this 750000 µF, 40 V capacitor model. The difference does not impact circuit functionality or performance.

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

A: Yes. Both parts feature radial, can-style screw terminals with identical lead spacing of 31.80 mm. Terminal compatibility is confirmed across all mechanical parameters.

Q: What is the maximum operating temperature for both parts?

A: Both the ALS71H754QT040 and ALS70A754QT040 operate across the temperature range of -40°C to 85°C with a rated lifetime of 20000 hours at 85°C.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the ESR specification for these capacitors?

A: Both parts have an equivalent series resistance of 5 mOhm at 100 Hz, with an impedance of 7 mOhms.

Q: Can these capacitors handle the specified ripple current?

A: Yes. Both parts are rated for 42.7 A ripple current at 100 Hz and 43.7 A ripple current at 10 kHz, meeting the specified low and high frequency ripple current requirements.