ALS71C135QT025 Equivalent & Substitute Parts

Part Overview

The ALS71C135QT025 is a 1.3 F aluminum electrolytic capacitor manufactured by KEMET, rated for 25 V with ±20% tolerance. This radial, can-type capacitor features screw terminals and is designed for general-purpose applications requiring high capacitance in a chassis-mount configuration. The part is currently Active in product status with 1046 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications where the primary part number may be unavailable or where design requirements permit functional alternatives.

Substiute Parts

ALS71C135QT025

KEMETIn Stock: 1154ALS71C135QT025 Datasheet

Current PartRFQ

ALS70A135QT025

KEMETIn Stock: 856ALS70A135QT025 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALS71C135QT025 are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Electrical Parameters (Must Match):

• Capacitance: 1.3 F
• Voltage Rating: 25 V
• Tolerance: ±20%
• ESR @ 100Hz: 5 mOhm
• Lifetime @ 85°C: 20000 Hrs
• Operating Temperature Range: -40°C ~ 85°C
• Ripple Current @ 100 Hz: 42.9 A
• Ripple Current @ 10 kHz: 43.5 A

Mechanical Parameters (Must Match):

• Package / Case: Radial, Can - Screw Terminals
• Mounting Type: Chassis Mount
• Lead Spacing: 1.252" (31.80mm)
• Size / Dimension: 3.543" Dia (90.00mm)
• Height - Seated (Max): 8.740" (222.00mm)

The ALS70A135QT025 meets all specified electrical and mechanical parameters and is classified as a parametric equivalent. Both parts belong to the KEMET aluminum electrolytic capacitor family and maintain identical functional characteristics for general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71C135QT025 and ALS70A135QT025 are Active products manufactured by KEMET with full compliance to ROHS3, REACH Unaffected, and MSL 1 (Unlimited) specifications. The parts are electrically and mechanically identical across all specified parameters, including capacitance, voltage rating, ESR, lifetime rating, operating temperature range, ripple current specifications, and physical dimensions.

Selection between these parts should be based on availability and inventory status. The ALS71C135QT025 currently has 1046 units in stock, while the ALS70A135QT025 has 819 units available. Both parts are suitable for direct substitution in general-purpose aluminum electrolytic capacitor applications requiring 1.3 F capacitance at 25 V with screw terminal connections and chassis mounting.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A135QT025 be used as a direct replacement for the ALS71C135QT025?

A: Yes. The ALS70A135QT025 is a parametric equivalent with identical electrical specifications (1.3 F, 25 V, ±20% tolerance, 5 mOhm ESR @ 100Hz, 20000 Hrs @ 85°C) and mechanical specifications (radial can with screw terminals, 1.252" lead spacing, 3.543" diameter, 8.740" height). Both parts are Active products with ROHS3 compliance and can be used interchangeably in applications where these specifications are required.

Q: Are there any differences in the series designation between ALS71C and ALS70A?

A: The series designations (ALS71 and ALS70) indicate different product lines within KEMET's aluminum electrolytic capacitor portfolio. However, for the specified part numbers, all electrical and mechanical parameters are identical, making them functionally equivalent for the stated application.

Q: What are the key parameters that determine substitutability for this capacitor?

A: Substitutability is determined by matching: capacitance (1.3 F), voltage rating (25 V), tolerance (±20%), ESR (5 mOhm @ 100Hz), lifetime (20000 Hrs @ 85°C), operating temperature range (-40°C ~ 85°C), ripple current ratings (42.9 A @ 100 Hz and 43.5 A @ 10 kHz), package type (radial can with screw terminals), lead spacing (1.252"), and physical dimensions (3.543" diameter, 8.740" height).

Q: Are both parts suitable for chassis mount applications?

A: Yes. Both the ALS71C135QT025 and ALS70A135QT025 are specified for chassis mount applications with identical screw terminal connections and mechanical dimensions.

Q: What is the compliance status of these parts?

A: Both parts are ROHS3 Compliant, REACH Unaffected, and have MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture sensitivity restrictions during storage or handling.