ALS70P274NF040 Equivalent & Substitute Parts

Part Overview

The ALS70P274NF040 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 provide alternative sourcing options when the primary part number becomes unavailable or when procurement requirements necessitate alternative manufacturer designations within the same electrical and mechanical specifications.

Substiute Parts

ALS70P274NF040

KEMETIn Stock: 860ALS70P274NF040 Datasheet

Current PartRFQ

ALS70A274NF040

KEMETIn Stock: 866ALS70A274NF040 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS70P274NF040 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part ALS70A274NF040 qualifies as a direct equivalent based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Capacitance: 270000 µF
• Voltage Rating: 40 V
• Tolerance: ±20%
• ESR @ 100Hz: 9 mOhm
• Lifetime: 20000 Hrs @ 85°C
• Operating Temperature: -40°C ~ 85°C
• Ripple Current specifications @ 100 Hz and 10 kHz

Mechanical Parameters (Must Match Exactly):

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

Compliance & Certifications (Must Match):

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The substitute part differs only in the base product number designation (ALS70A versus ALS70P), indicating a variant within the same KEMET ALS70 series with identical performance characteristics and physical form factor.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS70P274NF040 and ALS70A274NF040 are active production parts from KEMET with full regulatory compliance. Selection between these parts is based on procurement availability and inventory status rather than technical performance differentiation.

ALS70P274NF040 is the primary part number with 830 units in current stock inventory.

ALS70A274NF040 is the qualified substitute with 795 units in current stock inventory.

Both parts carry identical ROHS3 compliance certification and REACH unaffected status, making them suitable for applications subject to environmental regulations. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity restrictions during storage or handling.

Selection of either part number will deliver equivalent electrical performance, mechanical fit, and regulatory compliance for general-purpose aluminum electrolytic capacitor applications requiring 270000 µF capacitance at 40 V with screw terminal connectivity in chassis-mount configurations.

Frequently Asked Questions (FAQ)

Q: Can ALS70A274NF040 be used as a direct replacement for ALS70P274NF040?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. They share the same capacitance (270000 µF), voltage rating (40 V), ESR (9 mOhm @ 100Hz), lifetime rating (20000 Hrs @ 85°C), physical dimensions (3.031" Dia × 4.213" Height), and screw terminal package configuration. The difference in base product number (ALS70A versus ALS70P) represents a variant designation within the KEMET ALS70 series with no functional distinction.

Q: Are the physical dimensions identical between these two part numbers?

A: Yes. Both parts have identical dimensions: 3.031" diameter (77.00mm), 4.213" maximum seated height (107.00mm), and 1.252" lead spacing (31.80mm). They are both chassis-mount radial capacitors with screw terminals and will fit identically in PCB layouts and mechanical assemblies designed for either part number.

Q: Do both parts meet the same compliance standards?

A: Yes. Both ALS70P274NF040 and ALS70A274NF040 are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (Unlimited). They are suitable for applications subject to environmental and regulatory requirements in the same manner.

Q: What is the difference between these two part numbers?

A: The parts are functionally equivalent. The difference lies in the base product number designation (ALS70A versus ALS70P), which represents a variant within KEMET's ALS70 series. This designation difference does not affect electrical performance, mechanical compatibility, or regulatory compliance.

Q: Can I mix these part numbers in the same assembly?

A: Yes. Since both parts are electrically and mechanically identical with matching specifications across all parameters, they can be used interchangeably within the same assembly or circuit design without modification to PCB layout, schematic, or mechanical mounting.

Q: Which part should I select if both are in stock?

A: Selection can be based on procurement preference, lead time, or inventory availability. From a technical standpoint, there is no performance advantage of one part over the other. Both deliver identical electrical characteristics and mechanical fit.