ALS70U183NF200 Equivalent & Substitute Parts

Part Overview

The ALS70U183NF200 is an 18000 µF, 200 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 and voltage ratings. The part is currently active in production with 775 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

ALS70U183NF200

KEMETIn Stock: 851ALS70U183NF200 Datasheet

Current PartRFQ

ALS71A183NF200

KEMETIn Stock: 952ALS71A183NF200 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS70U183NF200 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 18000 µF
• Voltage Rating: 200 V
• Tolerance: ±20%
• ESR: 24 mOhm @ 100Hz
• Lifetime: 20000 Hrs @ 85°C
• Operating Temperature: -40°C ~ 85°C
• Ripple Current @ 100 Hz: 18.8 A
• Ripple Current @ 10 kHz: 23 A

Mechanical Parameters (Must Match):

• 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):

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

The ALS71A183NF200 meets all substitution criteria as a parametric equivalent within the KEMET aluminum electrolytic capacitor product line.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS70U183NF200 and ALS71A183NF200 are active production parts manufactured by KEMET with full compliance to ROHS3 and REACH regulations. The parts are electrically and mechanically identical across all specified parameters. Selection between these parts may be based on inventory availability: the ALS71A183NF200 currently has 896 units in stock compared to 775 units for the ALS70U183NF200. Both parts carry MSL Level 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements. The difference between the ALS70 and ALS71 series designations reflects internal KEMET product line organization and does not affect functional equivalence for this capacitance and voltage rating.

Frequently Asked Questions (FAQ)

Q: Are the ALS70U183NF200 and ALS71A183NF200 electrically interchangeable?

A: Yes. Both parts have identical electrical specifications: 18000 µF capacitance, 200 V rating, ±20% tolerance, 24 mOhm ESR @ 100Hz, and 20000 hour lifetime @ 85°C. Ripple current ratings and impedance are also identical.

Q: Do these parts have the same physical dimensions and mounting requirements?

A: Yes. Both parts are housed in identical radial, can-style packages with screw terminals. Diameter is 3.031" (77.00mm), height is 4.213" (107.00mm), and lead spacing is 1.252" (31.80mm). Both are chassis mount components.

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

A: The series designation reflects KEMET's internal product line organization. For the 18000 µF, 200 V specification, both series are functionally equivalent with identical electrical and mechanical parameters.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity rating. Regulatory status is identical.

Q: Can I substitute one part for the other in an existing design?

A: Yes. The ALS71A183NF200 is a direct parametric equivalent to the ALS70U183NF200. No circuit modifications or re-qualification are required for substitution.

Q: Which part should I select based on current availability?

A: The ALS71A183NF200 has higher current inventory (896 units) compared to the ALS70U183NF200 (775 units). Selection may be based on procurement lead time and supply chain requirements.