ALS71C184MF040 Equivalent & Substitute Parts

Part Overview

The ALS71C184MF040 is a 180000 µF, 40 V aluminum electrolytic capacitor manufactured by KEMET, featuring screw terminals for chassis mount applications. This radial can capacitor is designed for general-purpose energy storage and filtering in power supply circuits. The part maintains an active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory requirements necessitate alternative stock sources.

Key Parameters

Parameter	Value	Unit
Capacitance	180000	µF
Voltage - Rated	40	V
Tolerance	±20%	-
ESR @ 100Hz	9	mOhm
Lifetime @ 85°C	19000	Hrs
Operating Temperature Range	-40 to 85	°C
Ripple Current @ 100 Hz	27.4	A
Ripple Current @ 10 kHz	29.2	A
Lead Spacing	28.50	mm
Diameter	66.00	mm
Height - Seated (Max)	107.00	mm
Package Type	Radial, Can - Screw Terminals	-
Mounting Type	Chassis Mount	-

Substitute Part Grouping Explanation

Substitute parts for the ALS71C184MF040 are identified based on strict electrical and mechanical parameter matching within the aluminum electrolytic capacitor category. The substitution criteria are:

Critical Matching Parameters:

Capacitance: 180000 µF (exact match required)
Voltage Rating: 40 V (exact match required)
Tolerance: ±20% (exact match required)
ESR @ 100Hz: 9 mOhm (exact match required)
Lifetime @ 85°C: 19000 Hrs (exact match required)
Operating Temperature Range: -40°C to 85°C (exact match required)
Ripple Current @ 100 Hz: 27.4 A (exact match required)
Ripple Current @ 10 kHz: 29.2 A (exact match required)
Lead Spacing: 28.50 mm (exact match required)
Physical Dimensions: 66.00 mm diameter, 107.00 mm height (exact match required)
Package Configuration: Radial, Can - Screw Terminals (exact match required)
Mounting Type: Chassis Mount (exact match required)

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. The ALS71A184MF040 satisfies all substitution criteria and is therefore qualified as a direct equivalent.

Parameter Comparison

Parameter	ALS71C184MF040	ALS71A184MF040	Match Status
Manufacturer	KEMET	KEMET	Match
Series	ALS71	ALS71	Match
Capacitance	180000 µF	180000 µF	Match
Voltage - Rated	40 V	40 V	Match
Tolerance	±20%	±20%	Match
ESR @ 100Hz	9 mOhm	9 mOhm	Match
Lifetime @ 85°C	19000 Hrs	19000 Hrs	Match
Operating Temperature	-40°C to 85°C	-40°C to 85°C	Match
Ripple Current @ 100 Hz	27.4 A	27.4 A	Match
Ripple Current @ 10 kHz	29.2 A	29.2 A	Match
Impedance	9 mOhms	9 mOhms	Match
Lead Spacing	28.50 mm	28.50 mm	Match
Diameter	66.00 mm	66.00 mm	Match
Height - Seated (Max)	107.00 mm	107.00 mm	Match
Package / Case	Radial, Can - Screw Terminals	Radial, Can - Screw Terminals	Match
Mounting Type	Chassis Mount	Chassis Mount	Match
Product Status	Active	Active	Match
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
REACH Status	REACH Unaffected	REACH Unaffected	Match
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Match

Engineering Selection Recommendations

Both the ALS71C184MF040 and ALS71A184MF040 are active products manufactured by KEMET with identical electrical and mechanical specifications. Selection between these parts should be based on inventory availability and lead time requirements.

Compliance Status: Both parts maintain full RoHS3 compliance and REACH unaffected designation, meeting regulatory requirements for industrial and commercial applications.

Product Availability: The ALS71A184MF040 currently maintains higher inventory levels (978 Pcs) compared to the ALS71C184MF040 (735 Pcs), making it a viable alternative when primary part availability is constrained.

Functional Equivalence: The parts are functionally identical across all electrical parameters, mechanical dimensions, and performance characteristics. Direct substitution is supported without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the ALS71A184MF040 be used as a direct replacement for the ALS71C184MF040?

A: Yes. The ALS71A184MF040 is a parametric equivalent with identical capacitance (180000 µF), voltage rating (40 V), ESR (9 mOhm @ 100Hz), lifetime (19000 Hrs @ 85°C), ripple current specifications, physical dimensions, and screw terminal configuration. Direct substitution is supported without circuit modification.

Q: Are there any differences in the mechanical mounting between these parts?

A: No. Both parts feature identical chassis mount configurations with screw terminals, 28.50 mm lead spacing, 66.00 mm diameter, and 107.00 mm maximum seated height. PCB layout and mounting hardware remain unchanged.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the ALS71C184MF040 and ALS71A184MF040 are RoHS3 compliant and REACH unaffected. Moisture sensitivity level is 1 (Unlimited) for both parts, indicating no special handling requirements during storage or assembly.

Q: What is the difference between the ALS71C and ALS71A base product numbers?

A: The base product numbers (ALS71C versus ALS71A) represent different product variants within the ALS71 series. However, when paired with identical capacitance, voltage, and tolerance specifications (184MF040), the electrical and mechanical performance is equivalent. The variant designation does not affect functional compatibility.

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

A: Yes. Both parts support identical ripple current specifications: 27.4 A @ 100 Hz and 29.2 A @ 10 kHz. Thermal performance and lifetime expectations remain consistent across both part numbers when operated within specified parameters.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message