ALS71P183NF200 Equivalent & Substitute Parts

Part Overview

The ALS71P183NF200 is an 18000 µF, 200 V aluminum electrolytic capacitor manufactured by KEMET, featuring screw terminals for chassis mount applications. This radial can capacitor is designed for general-purpose power supply filtering and energy storage in industrial and commercial equipment. The part maintains an active product status with 20000 hours lifetime rating at 85°C operating temperature. Substitute parts are identified to provide alternative sourcing options while maintaining identical electrical and mechanical specifications for direct circuit board compatibility.

Substiute Parts

ALS71P183NF200

KEMETIn Stock: 931ALS71P183NF200 Datasheet

Current PartRFQ

ALS71A183NF200

KEMETIn Stock: 952ALS71A183NF200 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS71P183NF200 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part ALS71A183NF200 qualifies as a parametric equivalent based on the following criteria:

Electrical Equivalence Requirements:

• Identical capacitance value: 18000 µF
• Identical voltage rating: 200 V
• Identical tolerance: ±20%
• Identical ESR: 24 mOhm @ 100Hz
• Identical lifetime rating: 20000 Hrs @ 85°C
• Identical operating temperature range: -40°C to 85°C
• Identical ripple current specifications at both 100Hz and 10kHz

Mechanical Equivalence Requirements:

• Identical package type: Radial, Can - Screw Terminals
• Identical mounting type: Chassis Mount
• Identical physical dimensions: 3.031" diameter, 4.213" height
• Identical lead spacing: 1.252"

Compliance Equivalence:

• Both parts maintain ROHS3 compliance
• Both parts are REACH Unaffected
• Both parts carry identical ECCN and HTSUS classifications

The substitute part differs only in the base product number designation (ALS71A versus ALS71P), indicating a variant within the same KEMET ALS71 series that maintains full parametric compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71P183NF200 and ALS71A183NF200 are active products from KEMET's ALS71 aluminum electrolytic capacitor series. Selection between these parts is based on availability and inventory status rather than technical differentiation.

ALS71P183NF200 is the primary part designation with 910 units in current stock inventory.

ALS71A183NF200 is the parametric equivalent substitute with 896 units in current stock inventory.

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

Selection should be based on procurement lead time, supplier availability, and inventory allocation within your supply chain. No technical re-qualification is required when substituting between these two part numbers within the same application circuit.

Frequently Asked Questions (FAQ)

Q: Can ALS71A183NF200 be used as a direct replacement for ALS71P183NF200?

A: Yes. The ALS71A183NF200 is a parametric equivalent with identical electrical specifications (18000 µF, 200 V, ±20% tolerance, 24 mOhm ESR), identical mechanical dimensions (3.031" diameter, 4.213" height, 1.252" lead spacing), and identical package configuration (Radial, Can - Screw Terminals). No circuit modifications or re-qualification testing is required.

Q: What is the difference between the ALS71P and ALS71A base product numbers?

A: Both designations refer to variants within KEMET's ALS71 series aluminum electrolytic capacitor line. The difference in base product number does not reflect any electrical or mechanical parameter variation for the 183NF200 capacitance/voltage combination. Both maintain identical performance characteristics and compliance certifications.

Q: Are the physical dimensions identical between these two parts?

A: Yes. Both parts have identical physical dimensions: 3.031 inches (77.00 mm) diameter, 4.213 inches (107.00 mm) seated height, and 1.252 inches (31.80 mm) lead spacing. Both use screw terminal connections and are designed for chassis mount applications. No PCB layout modifications are required when substituting between these parts.

Q: Do both parts have the same ripple current ratings?

A: Yes. Both ALS71P183NF200 and ALS71A183NF200 have identical ripple current specifications: 18.8 A at 100 Hz and 23 A at 10 kHz. ESR is 24 mOhm at 100 Hz for both parts, and impedance is 19 mOhms for both.

Q: What is the lifetime rating for these capacitors?

A: Both parts are rated for 20000 hours of operation at 85°C. The operating temperature range for both is -40°C to 85°C. These specifications are identical between the ALS71P183NF200 and ALS71A183NF200.

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

A: No. Both parts carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and MSL rating of 1 (Unlimited). Both share the same ECCN (EAR99) and HTSUS (8532.22.0085) classifications.

Q: Which part should I specify in my design documentation?

A: Either part number is acceptable for design documentation. Both are active products with confirmed inventory availability. Specify the part number based on your supplier's current stock allocation and lead time requirements. Both parts are electrically and mechanically interchangeable.