ALS71G274NF040 Equivalent & Substitute Parts

Part Overview

The ALS71G274NF040 is a 270000 µF aluminum electrolytic capacitor rated at 40 V with screw terminals, manufactured by KEMET in the ALS71 series. This component is classified as an active product suitable for general-purpose applications requiring high-capacitance energy storage in chassis-mounted configurations. The part features a radial can design with screw terminals, operating across a temperature range of -40°C to 85°C with a rated lifetime of 20000 hours at 85°C.

Equivalent substitute parts are identified when they maintain identical electrical specifications and mechanical compatibility, ensuring direct interchangeability in circuit designs without performance degradation or layout modifications.

Substiute Parts

ALS71G274NF040

KEMETIn Stock: 963ALS71G274NF040 Datasheet

Current PartRFQ

ALS70A274NF040

KEMETIn Stock: 866ALS70A274NF040 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALS71G274NF040 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Capacitance value: 270000 µF (exact match required)
• Rated voltage: 40 V (exact match required)
• Tolerance: ±20% (exact match required)
• ESR @ 100Hz: 9 mOhm (exact match required)
• Lifetime @ 85°C: 20000 Hrs (exact match required)
• Operating temperature range: -40°C to 85°C (exact match required)
• Ripple current specifications @ 100Hz and 10kHz (exact match required)

Mechanical Compatibility Criteria:

• Package type: Radial, Can - Screw Terminals (exact match required)
• Mounting type: Chassis Mount (exact match required)
• Lead spacing: 31.80 mm (exact match required)
• Physical dimensions: 77.00 mm diameter, 107.00 mm height (exact match required)

Compliance & Certification Criteria:

• RoHS3 Compliance status (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)
• REACH Status: REACH Unaffected (exact match required)

The ALS70A274NF040 meets all substitution criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71G274NF040 and ALS70A274NF040 are active products manufactured by KEMET with full RoHS3 compliance and REACH unaffected status. The parts are electrically and mechanically identical across all specified parameters.

Selection between these parts is based on inventory availability and supply chain considerations. The ALS71G274NF040 maintains 920 pieces in stock, while the ALS70A274NF040 maintains 795 pieces in stock. Both parts satisfy identical application requirements for general-purpose high-capacitance energy storage in chassis-mounted configurations.

No performance differential exists between these components. Direct substitution is permissible in either direction without circuit redesign or performance impact.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A274NF040 be used as a direct replacement for the ALS71G274NF040?

A: Yes. The ALS70A274NF040 is a parametric equivalent with identical electrical specifications, mechanical dimensions, and compliance certifications. Direct substitution is permissible without circuit modification.

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

A: The series designation reflects internal KEMET product line organization. Both series share identical electrical and mechanical specifications for this 270000 µF 40 V capacitor model. The difference is organizational only and does not affect performance or compatibility.

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

A: Yes. Both parts feature radial can design with screw terminals, identical lead spacing of 31.80 mm, and identical mounting specifications for chassis mount applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the ALS71G274NF040 and ALS70A274NF040 are RoHS3 compliant, REACH unaffected, and carry identical moisture sensitivity level ratings of 1 (Unlimited).

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

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

Q: Are the physical dimensions identical?

A: Yes. Both parts share identical dimensions: 77.00 mm diameter and 107.00 mm maximum seated height, ensuring identical PCB layout and chassis mounting requirements.

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

A: Yes. The electrical performance, mechanical fit, and compliance certifications are identical, permitting direct substitution in either direction without design changes.