ALS70A184MF040 Equivalent & Substitute Parts

Part Overview

The ALS70A184MF040 is a 180000 µF, 40 V aluminum electrolytic capacitor manufactured by KEMET, featuring radial can construction with screw terminals. This component is classified as Active product status and is designed for general-purpose applications requiring high-capacitance energy storage in chassis-mounted configurations. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category, ensuring functional interchangeability in circuit designs.

Substiute Parts

ALS70A184MF040

KEMETIn Stock: 854ALS70A184MF040 Datasheet

Current PartRFQ

ALS71A184MF040

KEMETIn Stock: 1000ALS71A184MF040 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALS70A184MF040 are identified based on strict equivalence of the following critical parameters:

• Capacitance Value: 180000 µF (exact match required)
• Rated Voltage: 40 V (exact match required)
• Tolerance: ±20% (exact match required)
• ESR: 9 mOhm @ 100 Hz (exact match required)
• Lifetime Rating: 19000 Hrs @ 85°C (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Ripple Current Specifications: 27.4 A @ 100 Hz and 29.2 A @ 10 kHz (exact match required)
• Package Configuration: Radial, Can - Screw Terminals (exact match required)
• Mounting Type: Chassis Mount (exact match required)
• Physical Dimensions: 2.598" Dia (66.00 mm), Height 4.213" (107.00 mm), Lead Spacing 1.122" (28.50 mm) (exact match required)
• Compliance Standards: ROHS3 Compliant, MSL 1 (exact match required)

Substitution is valid only when all parameters listed above are identical between the main part and the candidate substitute. Series designation differences (ALS70 versus ALS71) do not affect substitution eligibility when all electrical and mechanical parameters remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS70A184MF040 and ALS71A184MF040 are Active product status components manufactured by KEMET with full ROHS3 compliance and REACH unaffected status. Selection between these parts is based on inventory availability and supply chain considerations, as all electrical performance characteristics, mechanical dimensions, and regulatory compliance certifications are identical. The ALS70A184MF040 maintains 814 pieces in current inventory, while the ALS71A184MF040 maintains 978 pieces. Both parts are suitable for direct substitution in applications requiring 180000 µF capacitance at 40 V with chassis-mount screw terminal configuration.

Frequently Asked Questions (FAQ)

Q: Can ALS71A184MF040 be used as a direct replacement for ALS70A184MF040?

A: Yes. All electrical parameters, mechanical dimensions, and compliance certifications are identical between these parts. Direct substitution is valid for circuit applications.

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

A: Series designation differences do not affect substitution eligibility when all specified electrical and mechanical parameters remain equivalent. Both series are manufactured by KEMET and meet identical performance specifications for this part number configuration.

Q: Are the physical dimensions identical between substitute parts?

A: Yes. Both parts feature identical diameter (2.598" / 66.00 mm), height (4.213" / 107.00 mm), and lead spacing (1.122" / 28.50 mm). Chassis-mount screw terminal configurations are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both ALS70A184MF040 and ALS71A184MF040 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level and REACH unaffected status.

Q: What are the critical electrical parameters that must match for substitution?

A: Capacitance (180000 µF), rated voltage (40 V), tolerance (±20%), ESR (9 mOhm @ 100 Hz), lifetime rating (19000 Hrs @ 85°C), operating temperature range (-40°C ~ 85°C), and ripple current specifications (27.4 A @ 100 Hz, 29.2 A @ 10 kHz) must all be identical.

Q: Can these parts be used in applications requiring different voltage ratings?

A: No. Both parts are rated for 40 V operation. Use in circuits with different voltage requirements requires selection of alternative part numbers with matching voltage specifications.

Q: What is the maximum operating temperature for these capacitors?

A: The maximum operating temperature is 85°C. The lifetime rating of 19000 hours is specified at this temperature. Operation above 85°C is outside the specified operating range.