ALS70H274NF040 Equivalent & Substitute Parts

Part Overview

The ALS70H274NF040 is a 270000 µF, 40 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 values in chassis mount configurations. The part is currently active in production with full inventory availability. Substitute parts are identified to support procurement flexibility, supply chain continuity, and design standardization across equivalent product variants within the same series.

Substiute Parts

ALS70H274NF040

KEMETIn Stock: 863ALS70H274NF040 Datasheet

Current PartRFQ

ALS70A274NF040

KEMETIn Stock: 866ALS70A274NF040 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS70H274NF040 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance: 270000 µF (exact match required)
• Voltage Rating: 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 ~ 85°C (exact match required)

Mechanical Parameters:

• Package / Case: Radial, Can - Screw Terminals (exact match required)
• Mounting Type: Chassis Mount (exact match required)
• Physical Dimensions: 3.031" Dia (77.00mm), Height 4.213" (107.00mm), Lead Spacing 1.252" (31.80mm) (exact match required)

Compliance Parameters:

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

The substitute part ALS70A274NF040 meets all specified criteria and is classified as a parametric equivalent within the ALS70 series.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS70H274NF040 and ALS70A274NF040 are active production parts manufactured by KEMET with full ROHS3 compliance and REACH unaffected status. Both parts carry MSL Level 1 (Unlimited) moisture sensitivity classification, indicating no special moisture handling requirements during storage or assembly.

Selection between these two equivalent parts is based on procurement availability and inventory status. The ALS70H274NF040 currently maintains 828 pieces in stock, while the ALS70A274NF040 maintains 795 pieces in stock. Both parts are suitable for direct substitution in applications requiring 270000 µF capacitance at 40 V with screw terminal connections in chassis mount configurations.

No technical performance differentiation exists between these parts based on the provided specifications. Component selection should be determined by supply chain requirements and inventory management protocols.

Frequently Asked Questions (FAQ)

Q: Can ALS70A274NF040 be used as a direct replacement for ALS70H274NF040?

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

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts share identical dimensions: 3.031" diameter (77.00mm), 4.213" maximum seated height (107.00mm), and 1.252" lead spacing (31.80mm). Mounting footprints and chassis cutout requirements are identical.

Q: Do both parts have the same screw terminal configuration?

A: Yes. Both ALS70H274NF040 and ALS70A274NF040 are packaged as radial, can-style capacitors with screw terminals for chassis mount applications. Terminal spacing and connection methods are identical.

Q: What is the difference between the ALS70H and ALS70A base product numbers?

A: The base product number designations (ALS70H versus ALS70A) represent internal KEMET product line variants. All other specifications, including capacitance, voltage rating, tolerance, ESR, lifetime, and physical dimensions, are identical between these variants.

Q: Are both parts RoHS compliant?

A: Yes. Both ALS70H274NF040 and ALS70A274NF040 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the moisture sensitivity level for these capacitors?

A: Both parts carry MSL Level 1 (Unlimited) classification, indicating no moisture sensitivity restrictions. Standard storage conditions without specialized desiccant packaging are acceptable.

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

A: Yes. The electrical performance, mechanical fit, and compliance status are identical. No design changes, circuit modifications, or board layout adjustments are required for substitution.