ALS81H752NF350 Equivalent & Substitute Parts

Part Overview

The ALS81H752NF350 is a 7500 µF, 350 V aluminum electrolytic capacitor manufactured by KEMET, designed for general-purpose applications requiring high capacitance and voltage ratings. This radial, can-style capacitor features screw terminals for chassis mount installation and is rated for 9000 hours at 105°C operating temperature. The part maintains Active product status and is ROHS3 compliant. Equivalent substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory constraints require component substitution within the same electrical and mechanical specifications.

Substiute Parts

ALS81H752NF350

KEMETIn Stock: 1138ALS81H752NF350 Datasheet

Current PartRFQ

ALS80A752NF350

KEMETIn Stock: 737ALS80A752NF350 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS81H752NF350 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 7500 µF
• Voltage Rating: 350 V
• Tolerance: ±20%
• ESR @ 100Hz: 29 mOhm
• Lifetime: 9000 Hrs @ 105°C
• Operating Temperature Range: -40°C ~ 105°C
• Ripple Current @ 100 Hz: 14 A
• Ripple Current @ 10 kHz: 19.9 A
• Impedance: 19 mOhms

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 Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Product Status: Active

The substitute part ALS80A752NF350 meets all specified electrical, mechanical, and compliance requirements and is therefore classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS81H752NF350 and ALS80A752NF350 are Active products manufactured by KEMET with identical electrical specifications, mechanical dimensions, and compliance certifications. Selection between these parts is based on availability and inventory status:

• ALS81H752NF350: 1057 pieces in stock (primary selection when available)
• ALS80A752NF350: 711 pieces in stock (substitute when primary part is unavailable)

Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The difference between the two part numbers reflects series designation (ALS81 versus ALS80) within KEMET's product line, with no impact on electrical performance or mechanical compatibility. Direct substitution is permissible without circuit redesign or board layout modification.

Frequently Asked Questions (FAQ)

Q: Can ALS80A752NF350 be used as a direct replacement for ALS81H752NF350?

A: Yes. Both parts are electrically and mechanically identical with matching capacitance (7500 µF), voltage rating (350 V), ESR (29 mOhm @ 100Hz), ripple current specifications, and physical dimensions. Direct substitution requires no circuit modifications.

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

A: Yes. Both parts have identical case dimensions of 3.031" diameter (77.00mm) and 4.213" maximum seated height (107.00mm), with 1.252" (31.80mm) lead spacing. Screw terminal mounting is identical on both parts.

Q: Do both parts meet the same compliance standards?

A: Yes. Both ALS81H752NF350 and ALS80A752NF350 are ROHS3 compliant and REACH unaffected. No compliance differences exist between the two parts.

Q: What is the difference between the ALS81 and ALS80 series designations?

A: The series designation reflects KEMET's internal product line organization. No electrical or mechanical performance differences exist between ALS81H and ALS80A variants with identical part number suffixes.

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

A: Yes. Both parts are rated for 14 A ripple current at 100 Hz and 19.9 A at 10 kHz, supporting high-frequency switching applications within specified thermal limits.

Q: What is the expected operational lifetime of these capacitors?

A: Both parts are rated for 9000 hours at 105°C operating temperature. Actual lifetime depends on operating conditions, ambient temperature, and ripple current levels within the specified ranges.