ALS71P103NP350 Equivalent & Substitute Parts

Part Overview

The ALS71P103NP350 is a 10000 µF, 350 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 product status with 1091 units in stock. Substitute parts are identified when inventory constraints, supply chain disruptions, or design flexibility requirements necessitate alternative components that maintain electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

ALS71P103NP350

KEMETIn Stock: 1122ALS71P103NP350 Datasheet

Current PartRFQ

ALS70A103NP350

KEMETIn Stock: 1101ALS70A103NP350 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS71P103NP350 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 @ 85°C: 20000 Hrs
• Operating Temperature Range: -40°C to 85°C
• Ripple Current @ 100 Hz: 19.1 A
• Ripple Current @ 10 kHz: 26.2 A
• Impedance: 16 mOhms

Mechanical Parameters (Must Match):

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

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• MSL: 1 (Unlimited)

The ALS70A103NP350 qualifies as a parametric equivalent because it maintains identical electrical performance, mechanical dimensions, and compliance certifications across all specified parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71P103NP350 and ALS70A103NP350 are Active products manufactured by KEMET with full ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The parts are electrically and mechanically identical across all specified parameters, including capacitance, voltage rating, ESR, ripple current ratings, thermal lifetime, and physical dimensions.

Selection between these two parts should be based on:

1. Inventory Availability: Both parts maintain adequate stock levels (1091 and 1049 units respectively).
2. Series Designation: The ALS71P103NP350 belongs to the ALS71 series, while the ALS70A103NP350 belongs to the ALS70 series. Series differences do not affect electrical or mechanical performance based on provided specifications.
3. Supply Chain Continuity: Either part may be selected without design modification or circuit re-qualification, provided the application requirements remain within the specified electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A103NP350 be used as a direct replacement for the ALS71P103NP350?

A: Yes. Both parts are electrically and mechanically identical. All critical parameters including capacitance (10000 µF), voltage rating (350 V), ESR (24 mOhm @ 100Hz), ripple current ratings, thermal lifetime (20000 Hrs @ 85°C), and physical dimensions (77.00 mm diameter, 148.00 mm height, 31.80 mm lead spacing) are identical. No circuit modification or re-qualification is required.

Q: Are there any differences in the screw terminal configuration between these parts?

A: No. Both parts use identical Radial, Can - Screw Terminals packaging with the same lead spacing of 31.80 mm and mounting type (Chassis Mount).

Q: Do both parts meet the same compliance standards?

A: Yes. Both the ALS71P103NP350 and ALS70A103NP350 are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity level. Both are REACH Unaffected and classified as EAR99 for export control purposes.

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

A: Based on the provided specifications, both series share identical electrical and mechanical parameters for this 10000 µF, 350 V capacitor model. The series designation reflects internal KEMET product line organization but does not affect performance or compatibility in this application.

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

A: Yes. Both parts are rated for 19.1 A ripple current at 100 Hz and 26.2 A ripple current at 10 kHz, supporting high-ripple-current general-purpose applications within the specified operating temperature range of -40°C to 85°C.

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

A: Both parts are rated for 20000 hours of operation at 85°C. Actual lifetime depends on operating conditions, ripple current levels, and temperature profile within the specified -40°C to 85°C range.