ALS71A182DE250 Equivalent & Substitute Parts

Part Overview

The ALS71A182DE250 is a 1800 µF, 250 V aluminum electrolytic capacitor manufactured by KEMET, featuring radial, can-style screw terminals for chassis mount applications. This component is classified as Active product status and is designed for general-purpose applications requiring high capacitance and voltage ratings in industrial and power supply circuits.

Substitute parts are identified to provide design flexibility when the primary part number becomes unavailable or when inventory constraints require alternative sourcing from the same manufacturer's product line. All substitute parts maintain identical electrical and mechanical specifications to ensure direct functional compatibility.

Substiute Parts

ALS71A182DE250

KEMETIn Stock: 743ALS71A182DE250 Datasheet

Current PartRFQ

ALS70A182DE250

KEMETIn Stock: 964ALS70A182DE250 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS71A182DE250 is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part ALS70A182DE250 qualifies as a direct equivalent because it maintains identical specifications in the following key areas:

Electrical Parameters (Must Match Exactly):

• Capacitance: 1800 µF
• Voltage Rating: 250 V
• Tolerance: ±20%
• ESR @ 100Hz: 131 mOhm
• Lifetime @ 85°C: 11000 Hrs
• Operating Temperature: -40°C to 85°C
• Ripple Current @ 100 Hz: 5.5 A
• Ripple Current @ 10 kHz: 10.1 A
• Impedance: 86 mOhms

Mechanical Parameters (Must Match Exactly):

• Lead Spacing: 12.80 mm
• Diameter: 36.00 mm
• Height - Seated (Max): 84.00 mm
• Mounting Type: Chassis Mount
• Package / Case: Radial, Can - Screw Terminals

Compliance & Certifications (Must Match Exactly):

• RoHS Status: ROHS3 Compliant
• MSL Rating: 1 (Unlimited)
• REACH Status: REACH Unaffected
• ECCN: EAR99

The only difference between the main part and substitute is the series designation (ALS71 versus ALS70), which reflects internal KEMET product line organization and does not affect functional performance or physical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71A182DE250 and ALS70A182DE250 are Active product status components manufactured by KEMET and are suitable for direct substitution in applications requiring 1800 µF, 250 V aluminum electrolytic capacitors with screw terminal connections.

Compliance Considerations: Both parts are ROHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99, meeting regulatory requirements for industrial and commercial applications. The MSL Rating of 1 (Unlimited) indicates no moisture sensitivity restrictions during storage or handling.

Inventory Availability: The ALS71A182DE250 has 719 pieces in stock, while the ALS70A182DE250 has 868 pieces in stock. Selection between these parts may be based on current inventory levels and supply chain requirements.

Application Compatibility: Both parts are rated for general-purpose applications and maintain identical electrical performance characteristics, including ESR, ripple current handling, and thermal lifetime specifications. The operating temperature range of -40°C to 85°C and lifetime rating of 11000 hours at 85°C apply equally to both parts.

Frequently Asked Questions (FAQ)

Q: Can ALS70A182DE250 be used as a direct replacement for ALS71A182DE250?

A: Yes. The ALS70A182DE250 is a parametric equivalent with identical electrical and mechanical specifications. All critical parameters including capacitance, voltage rating, ESR, ripple current, physical dimensions, and mounting configuration are identical. The parts are interchangeable in circuit design and PCB layout.

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

A: The series designation reflects KEMET's internal product line organization. From an engineering perspective, the ALS71A182DE250 and ALS70A182DE250 are functionally equivalent with no performance differences in the specified parameters.

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

A: Yes. Both parts use Radial, Can - Screw Terminals with identical lead spacing of 12.80 mm, ensuring compatible mounting and connection to existing circuit boards and terminal blocks.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the ALS71A182DE250 and ALS70A182DE250 are ROHS3 Compliant, REACH Unaffected, and classified as EAR99. They meet identical regulatory requirements for industrial applications.

Q: What is the maximum ripple current these capacitors can handle?

A: At 10 kHz, both parts support 10.1 A ripple current. At 100 Hz, both parts support 5.5 A ripple current. These ratings determine the maximum AC current the capacitor can safely dissipate without exceeding temperature limits.

Q: Are there any thermal or lifetime differences between the two parts?

A: No. Both parts have identical operating temperature range (-40°C to 85°C) and thermal lifetime rating (11000 hours at 85°C). They will perform identically in thermal stress conditions.

Q: Can these capacitors be used in high-frequency applications?

A: These capacitors are rated for ripple current at both low frequency (100 Hz) and high frequency (10 kHz). The impedance of 86 mOhms and ESR of 131 mOhm at 100 Hz define their frequency response characteristics for the specified application range.