ALS71H183NF200 Equivalent & Substitute Parts

Part Overview

The ALS71H183NF200 is an 18000 µF, 200 V aluminum electrolytic capacitor manufactured by KEMET in the ALS71 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 full inventory availability. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when procurement requirements necessitate component alternatives that maintain identical electrical and mechanical specifications.

Substiute Parts

ALS71H183NF200

KEMETIn Stock: 1016ALS71H183NF200 Datasheet

Current PartRFQ

ALS71A183NF200

KEMETIn Stock: 952ALS71A183NF200 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS71H183NF200 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part ALS71A183NF200 qualifies as a direct equivalent based on the following criteria:

Electrical Equivalence:

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

Mechanical Equivalence:

• Identical package type: Radial, Can - Screw Terminals
• Identical mounting type: Chassis Mount
• Identical physical dimensions: 3.031" Dia (77.00mm), Height 4.213" (107.00mm)
• Identical lead spacing: 1.252" (31.80mm)

Compliance Equivalence:

• Both parts are ROHS3 Compliant
• Both parts have MSL rating of 1 (Unlimited)
• Both parts are REACH Unaffected
• Both parts carry identical ECCN and HTSUS classifications

The only difference between the main part and substitute is the base product number designation (ALS71H versus ALS71A), which reflects internal KEMET series classification but does not affect functional or physical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71H183NF200 and ALS71A183NF200 are active production parts from KEMET with full compliance certifications. Selection between these parts is based on availability and procurement logistics rather than technical differentiation.

Primary Selection (ALS71H183NF200): Use when available. Current inventory: 1003 pieces.

Substitute Selection (ALS71A183NF200): Use when primary part is unavailable or when procurement lead times require alternative sourcing. Current inventory: 896 pieces.

Both parts meet ROHS3 compliance requirements and carry identical electrical performance specifications. The screw terminal connection method ensures secure mechanical attachment in chassis-mount applications. The 20000-hour lifetime rating at 85°C provides consistent reliability across both part numbers.

Frequently Asked Questions (FAQ)

Q: Can ALS71A183NF200 be used as a direct replacement for ALS71H183NF200?

A: Yes. The ALS71A183NF200 is a direct parametric equivalent. All electrical specifications, mechanical dimensions, and compliance certifications are identical. The parts are interchangeable in circuit design and PCB layout.

Q: Are there any differences in performance between these two part numbers?

A: No. Both parts deliver identical capacitance (18000 µF), voltage rating (200 V), ESR (24 mOhm @ 100Hz), ripple current handling, and lifetime specifications (20000 Hrs @ 85°C).

Q: Do these capacitors require the same mounting footprint?

A: Yes. Both parts have identical physical dimensions (3.031" diameter, 4.213" height) and lead spacing (1.252"). They mount identically as chassis-mount components with screw terminals.

Q: What is the difference between the ALS71H and ALS71A base product numbers?

A: The base product number designation reflects KEMET's internal series classification. This distinction does not affect electrical performance, mechanical compatibility, or functional operation.

Q: Are both parts RoHS compliant?

A: Yes. Both ALS71H183NF200 and ALS71A183NF200 are ROHS3 Compliant with MSL rating of 1 (Unlimited moisture sensitivity level).

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

A: Yes. Both parts are rated for 18.8 A ripple current at 100 Hz and 23 A ripple current at 10 kHz, supporting high-ripple-current general-purpose applications.

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

A: Both parts operate across -40°C to 85°C. The 20000-hour lifetime specification applies at the 85°C upper temperature limit.