ALS70P103NP350 Equivalent & Substitute Parts

Part Overview

The ALS70P103NP350 is a 10000 µF, 350 V aluminum electrolytic capacitor manufactured by KEMET in the ALS70 series. This component features radial, can-style construction with screw terminals, designed for chassis mount applications requiring general-purpose energy storage and filtering. The part is currently Active in product status with 1042 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part number becomes unavailable or when design requirements permit functional alternatives within specified electrical and mechanical parameters.

Substiute Parts

ALS70P103NP350

KEMETIn Stock: 1057ALS70P103NP350 Datasheet

Current PartRFQ

ALS70A103NP350

KEMETIn Stock: 1101ALS70A103NP350 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS70P103NP350 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part ALS70A103NP350 qualifies as a parametric equivalent based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Capacitance: 10000 µF
• Voltage Rating: 350 V
• Tolerance: ±20%
• ESR @ 100Hz: 24 mOhm
• Lifetime @ 85°C: 20000 Hrs
• 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 Exactly):

• Lead Spacing: 31.80 mm
• Diameter: 77.00 mm
• Height - Seated (Max): 148.00 mm
• Mounting Type: Chassis Mount
• Package / Case: Radial, Can - Screw Terminals

Compliance & Certifications (Must Match):

• RoHS Status: ROHS3 Compliant
• MSL: 1 (Unlimited)
• REACH Status: REACH Unaffected
• ECCN: EAR99

The substitute part differs only in the base product number designation (ALS70A versus ALS70P), indicating a variant within the same KEMET ALS70 series. Both parts maintain identical electrical performance and physical dimensions, ensuring direct functional and mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS70P103NP350 and ALS70A103NP350 are Active products manufactured by KEMET with full ROHS3 compliance and REACH Unaffected status. Selection between these parts is based on inventory availability and procurement lead time rather than technical differentiation.

Primary Selection Criteria:

1. Inventory Availability: The ALS70A103NP350 maintains 1049 units in stock compared to 1042 units for the ALS70P103NP350, providing marginally higher availability.

2. Compliance Certification: Both parts satisfy identical regulatory requirements (ROHS3, REACH Unaffected, EAR99 classification), ensuring equivalent compliance posture in regulated applications.

3. Electrical Performance: Identical electrical specifications across capacitance, voltage rating, ESR, ripple current, and impedance ensure equivalent circuit performance in all applications.

4. Mechanical Compatibility: Identical physical dimensions, lead spacing, and screw terminal configuration ensure direct mechanical interchangeability in chassis mount applications without PCB or mechanical redesign.

5. Thermal Characteristics: Both parts specify identical operating temperature range (-40°C ~ 85°C) and lifetime rating (20000 Hrs @ 85°C), ensuring equivalent reliability in thermal stress conditions.

Either part number may be selected for new designs or as a replacement component without functional or compliance impact.

Frequently Asked Questions (FAQ)

Q: Can ALS70A103NP350 be used as a direct replacement for ALS70P103NP350?

A: Yes. The ALS70A103NP350 is a parametric equivalent with identical electrical specifications, mechanical dimensions, and compliance certifications. Direct substitution is supported without circuit or mechanical modification.

Q: What is the difference between the ALS70P and ALS70A base product numbers?

A: Both designations refer to variants within the KEMET ALS70 series. The provided specifications indicate no functional or performance differentiation between these variants for the 10000 µF, 350 V configuration. Substitution is based on parameter equivalence rather than base product number.

Q: Are the screw terminal connections identical between both parts?

A: Yes. Both parts specify identical lead spacing (31.80 mm) and package configuration (Radial, Can - Screw Terminals), ensuring mechanical and electrical compatibility with existing terminal connections.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both ALS70P103NP350 and ALS70A103NP350 are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes. Regulatory compliance is equivalent.

Q: What is the maximum ripple current rating for these capacitors?

A: The maximum ripple current is 26.2 A at 10 kHz high frequency operation. At low frequency (100 Hz), the ripple current rating is 19.1 A. Both parts share identical ripple current specifications.

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

A: Both parts are rated for operation up to 85°C with a specified lifetime of 20000 hours at this temperature. Operating temperature range is -40°C ~ 85°C. Application suitability depends on specific thermal environment requirements.

Q: What is the ESR (Equivalent Series Resistance) specification?

A: Both parts specify 24 mOhm ESR at 100 Hz, with impedance rated at 16 mOhms. These values determine frequency response and ripple current handling characteristics in filtering applications.

Q: Are both parts available in the same packaging format?

A: Yes. Both parts are supplied in Bulk packaging as new original components. Lead spacing, diameter, and height specifications are identical, ensuring compatibility with existing mechanical assemblies.