ALS71H103NP350 Equivalent & Substitute Parts

Part Overview

The ALS71H103NP350 is a 10000 µF, 350 V aluminum electrolytic capacitor manufactured by KEMET, featuring screw terminals for chassis mount applications. This radial, can-style capacitor is designed for general purpose applications requiring high capacitance and voltage ratings. The part is currently Active in product status with 629 units in stock. Equivalent substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory requirements necessitate alternative KEMET series selections.

Substiute Parts

ALS71H103NP350

KEMETIn Stock: 698ALS71H103NP350 Datasheet

Current PartRFQ

ALS70A103NP350

KEMETIn Stock: 1101ALS70A103NP350 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS71H103NP350 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 10000 µF
• Voltage Rating: 350 V
• Tolerance: ±20%
• ESR @ 100Hz: 24 mOhm
• Lifetime: 20000 Hrs @ 85°C
• Operating Temperature: -40°C ~ 85°C
• Ripple Current @ 100 Hz: 19.1 A
• Ripple Current @ 10 kHz: 26.2 A
• Impedance: 16 mOhms

Mechanical Parameters (Must Match):

• Package Type: Radial, Can - Screw Terminals
• Mounting Type: Chassis Mount
• Lead Spacing: 1.252" (31.80 mm)
• Physical Dimensions: 3.031" Dia (77.00 mm), Height 5.827" (148.00 mm)

Compliance Parameters (Must Match):

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

The ALS70A103NP350 meets all specified parameters and qualifies as a parametric equivalent substitute. Both parts are manufactured by KEMET and differ only in series designation (ALS71 versus ALS70), with identical electrical performance and physical specifications.

Parameter Comparison

Engineering Selection Recommendations

The ALS70A103NP350 is a direct parametric equivalent to the ALS71H103NP350. Both parts are manufactured by KEMET and maintain identical electrical, mechanical, and compliance specifications. Selection between these two part numbers should be based on the following factors:

Inventory Availability: The ALS70A103NP350 currently has 1049 units in stock compared to 629 units for the ALS71H103NP350, providing greater availability for high-volume procurement.

Product Status: Both parts maintain Active product status, ensuring continued manufacturer support and supply chain stability.

Regulatory Compliance: Both parts are ROHS3 Compliant, REACH Unaffected, and carry identical moisture sensitivity ratings, meeting all specified compliance requirements for equivalent application deployment.

Series Designation: The difference between ALS71 and ALS70 series represents internal KEMET product line organization and does not affect functional performance or physical compatibility in the specified application.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A103NP350 be used as a direct replacement for the ALS71H103NP350?

A: Yes. The ALS70A103NP350 is a parametric equivalent with identical capacitance (10000 µF), voltage rating (350 V), ESR (24 mOhm @ 100Hz), ripple current specifications, physical dimensions, lead spacing, and mounting configuration. Both parts are manufactured by KEMET and meet identical compliance standards.

Q: Are there any differences in physical dimensions or mounting between these parts?

A: No. Both parts share identical physical specifications: 3.031" diameter, 5.827" maximum seated height, 1.252" lead spacing, and chassis mount configuration with screw terminals. Direct mechanical substitution is supported without PCB or mounting structure modifications.

Q: Do both parts have the same operating temperature range?

A: Yes. Both the ALS71H103NP350 and ALS70A103NP350 operate across the identical temperature range of -40°C to 85°C with 20000 hours lifetime rating at 85°C.

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

A: The series designation reflects KEMET's internal product line categorization. From an engineering perspective, both series deliver identical electrical performance and physical specifications for this capacitance and voltage rating combination.

Q: Are both parts RoHS compliant?

A: Yes. Both the ALS71H103NP350 and ALS70A103NP350 are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected status.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection may be based on current inventory availability, with the ALS70A103NP350 currently offering higher stock levels (1049 units versus 629 units).