ALS70C184MF040 Equivalent & Substitute Parts

Part Overview

The ALS70C184MF040 is a 180000 µF, 40 V aluminum electrolytic capacitor with radial, can-style screw terminals manufactured by KEMET. This component is classified as an Active product and is designed for general-purpose applications requiring high-capacitance energy storage in chassis-mounted configurations. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 19000 hours at 85°C.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for this product category, ensuring functional interchangeability in the target application without design modification.

Substiute Parts

ALS70C184MF040

KEMETIn Stock: 979ALS70C184MF040 Datasheet

Current PartRFQ

ALS71A184MF040

KEMETIn Stock: 1000ALS71A184MF040 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALS70C184MF040 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 180000 µF
• Voltage Rating: 40 V
• Tolerance: ±20%
• ESR @ 100Hz: 9 mOhm
• Lifetime @ 85°C: 19000 Hrs
• Operating Temperature Range: -40°C to 85°C
• Ripple Current @ 100 Hz: 27.4 A
• Ripple Current @ 10 kHz: 29.2 A

Mechanical Parameters (Must Match):

• Package Type: Radial, Can - Screw Terminals
• Mounting Type: Chassis Mount
• Lead Spacing: 1.122" (28.50mm)
• Diameter: 2.598" (66.00mm)
• Height - Seated (Max): 4.213" (107.00mm)

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The ALS71A184MF040 meets all substitution criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS70C184MF040 and ALS71A184MF040 are Active products manufactured by KEMET with identical electrical and mechanical specifications. Selection between these parts is based on availability and inventory status rather than technical performance differences.

ALS70C184MF040: 900 pieces in stock. ROHS3 compliant, REACH unaffected, MSL 1 rating.

ALS71A184MF040: 978 pieces in stock. ROHS3 compliant, REACH unaffected, MSL 1 rating.

Both parts satisfy all regulatory compliance requirements and are suitable for direct substitution in applications requiring 180000 µF, 40 V aluminum electrolytic capacitors with screw terminal connections and chassis mounting.

Frequently Asked Questions (FAQ)

Q: Can ALS71A184MF040 be used as a direct replacement for ALS70C184MF040?

A: Yes. The ALS71A184MF040 is a parametric equivalent with identical electrical performance, mechanical dimensions, and compliance certifications. No circuit modifications are required.

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

A: The series designation reflects the product line within KEMET's aluminum electrolytic capacitor portfolio. Both series share identical specifications for this 180000 µF, 40 V configuration.

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

A: Yes. Both parts feature radial, can-style screw terminals with identical lead spacing of 1.122" (28.50mm) and are compatible with the same mounting hardware and PCB layouts.

Q: Do these capacitors meet RoHS and REACH requirements?

A: Yes. Both ALS70C184MF040 and ALS71A184MF040 are ROHS3 compliant and REACH unaffected, suitable for applications with environmental compliance requirements.

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

A: Both parts operate across -40°C to 85°C with a rated lifetime of 19000 hours at 85°C continuous operation.

Q: Can these capacitors handle the specified ripple current continuously?

A: Yes. Both parts are rated for 27.4 A ripple current at 100 Hz and 29.2 A at 10 kHz, with ESR of 9 mOhm @ 100Hz supporting these current levels.