ALT22A103CD063 Equivalent & Substitute Parts

Part Overview

The ALT22A103CD063 is a 10000 µF, 63 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by KEMET. This component is classified as Not For New Designs, indicating it has been superseded in KEMET's product portfolio. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 18000 hours at 85°C and is suitable for general-purpose applications requiring high-capacitance energy storage.

Equivalent substitute parts are necessary when the ALT22A103CD063 reaches end-of-life status, inventory depletion, or when design requirements favor active product lines with extended support and availability.

Key Parameters

Parameter	Value
Capacitance	10000 µF
Voltage Rating	63 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Polarization	Polar
Operating Temperature Range	-40°C to 85°C
Mounting Type	Chassis Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the ALT22A103CD063 is determined by the following mandatory parameters:

Electrical Parameters:

Capacitance: 10000 µF (exact match required)
Voltage Rating: 63 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)

Mechanical Parameters:

Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Operating Temperature Range: -40°C to 85°C (exact match required)

Compliance Parameters:

RoHS Status: ROHS3 Compliant (exact match required)

The substitute parts ALC70A103CF063 and ALC70A103DD063 satisfy all mandatory electrical, mechanical, and compliance parameters. Both are manufactured by KEMET and maintain identical capacitance, voltage rating, tolerance, polarization, lead spacing, and temperature operating range. Both substitute parts are classified as Active products, ensuring continued availability and manufacturer support.

Parameter Comparison

Parameter	ALT22A103CD063	ALC70A103CF063	ALC70A103DD063
Manufacturer	KEMET	KEMET	KEMET
Capacitance	10000 µF	10000 µF	10000 µF
Voltage Rating	63 V	63 V	63 V
Tolerance	±20%	±20%	±20%
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Polarization	Polar	Polar	Polar
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Size / Dimension	1.378" Dia (35.00 mm)	1.181" Dia (30.00 mm)	1.378" Dia (35.00 mm)
Height - Seated (Max)	2.244" (57.00 mm)	2.047" (52.00 mm)	1.654" (42.00 mm)
Lifetime @ Temp.	18000 Hrs @ 85°C	13000 Hrs @ 85°C	15000 Hrs @ 85°C
ESR @ 100 Hz	Not specified	39.81 mOhm	43.57 mOhm
Product Status	Not For New Designs	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

ALC70A103CF063 is suitable for applications where board space is constrained. This substitute features a smaller diameter (1.181" vs. 1.378") and reduced seated height (2.047" vs. 2.244"), enabling integration into compact layouts. The part is Active status with ROHS3 compliance. ESR is specified at 39.81 mOhm @ 100 Hz with ripple current ratings of 6.85 A @ 100 Hz and 9.4 A @ 10 kHz. Lifetime rating is 13000 hours @ 85°C.

ALC70A103DD063 maintains the same diameter as the original ALT22A103CD063 (1.378") but offers reduced seated height (1.654" vs. 2.244"), providing a more compact vertical profile. This substitute is Active status with ROHS3 compliance. ESR is specified at 43.57 mOhm @ 100 Hz with ripple current ratings of 6.55 A @ 100 Hz and 8.44 A @ 10 kHz. Lifetime rating is 15000 hours @ 85°C.

Both substitute parts are manufactured by KEMET and carry Active product status, ensuring long-term availability and manufacturer technical support. Selection between ALC70A103CF063 and ALC70A103DD063 depends on specific board layout constraints and thermal performance requirements.

Frequently Asked Questions (FAQ)

Q: Can ALT22A103CD063 be directly replaced with ALC70A103CF063 or ALC70A103DD063?

A: Yes. Both substitute parts match the mandatory electrical parameters (10000 µF, 63 V, ±20% tolerance), mechanical specifications (radial snap-in package, 10.00 mm lead spacing), and compliance requirements (ROHS3). All three parts operate across -40°C to 85°C and are polar aluminum electrolytic capacitors.

Q: What are the physical differences between the substitute parts?

A: ALC70A103CF063 has a smaller diameter (1.181" vs. 1.378") and taller seated height (2.047" vs. 1.654"). ALC70A103DD063 maintains the same diameter as the original but offers reduced seated height. Both are suitable for snap-in mounting applications.

Q: Why is the ALT22A103CD063 marked "Not For New Designs"?

A: This designation indicates the part has been superseded in KEMET's active product portfolio. ALC70A103CF063 and ALC70A103DD063 are Active products with ongoing manufacturer support and guaranteed availability.

Q: Are there differences in electrical performance between the three parts?

A: The ALT22A103CD063 specifies 18000 hours lifetime @ 85°C without ESR data. ALC70A103CF063 provides 13000 hours lifetime with 39.81 mOhm ESR @ 100 Hz. ALC70A103DD063 provides 15000 hours lifetime with 43.57 mOhm ESR @ 100 Hz. All three parts meet the same voltage, capacitance, and tolerance specifications.

Q: Which substitute should be selected for space-constrained applications?

A: ALC70A103CF063 offers the smallest footprint with 1.181" diameter and 2.047" seated height. ALC70A103DD063 provides intermediate dimensions with 1.378" diameter and 1.654" seated height. Selection depends on available board space and mounting orientation.

Q: Are both substitute parts RoHS compliant?

A: Yes. ALC70A103CF063 and ALC70A103DD063 are both ROHS3 Compliant, matching the compliance status of ALT22A103CD063.

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