ALS70U274NT063 Equivalent & Substitute Parts

Part Overview

The ALS70U274NT063 is a 270000 µF aluminum electrolytic capacitor rated at 63 V with screw terminals, manufactured by KEMET in the ALS70 series. This component is classified as an active product and is designed for general-purpose applications requiring high-capacitance energy storage in chassis-mounted configurations. The part is ROHS3 compliant and carries an unlimited moisture sensitivity level rating.

Substitute parts are identified when they maintain identical electrical specifications, mechanical dimensions, and mounting characteristics while offering alternative availability or inventory status from the same manufacturer.

Key Parameters

Parameter	Value
Capacitance	270000 µF
Voltage Rating	63 V
Tolerance	±20%
ESR @ 100Hz	7 mOhm
Lifetime @ 85°C	20000 Hrs
Operating Temperature Range	-40°C ~ 85°C
Ripple Current @ 100Hz	34.2 A
Ripple Current @ 10kHz	35.5 A
Impedance	8 mOhms
Package Type	Radial, Can - Screw Terminals
Mounting Type	Chassis Mount
Diameter	3.031" (77.00 mm)
Height	8.740" (222.00 mm)
Lead Spacing	1.252" (31.80 mm)

Substitute Part Grouping Explanation

Substitution eligibility for the ALS70U274NT063 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part ALS70A274NT063 qualifies as a parametric equivalent based on the following criteria:

Electrical Equivalence:

Identical capacitance value: 270000 µF
Identical voltage rating: 63 V
Identical tolerance: ±20%
Identical ESR: 7 mOhm @ 100Hz
Identical lifetime specification: 20000 Hrs @ 85°C
Identical operating temperature range: -40°C ~ 85°C
Identical ripple current ratings at both 100Hz and 10kHz

Mechanical Equivalence:

Identical package type: Radial, Can - Screw Terminals
Identical mounting type: Chassis Mount
Identical physical dimensions: 3.031" diameter, 8.740" height
Identical lead spacing: 1.252" (31.80 mm)

Compliance Equivalence:

Both parts are ROHS3 compliant
Both parts have MSL rating of 1 (Unlimited)
Both parts carry REACH Unaffected status
Both parts share identical ECCN and HTSUS classifications

The substitution is based solely on parametric matching with no deviations in any specified characteristic.

Parameter Comparison

Parameter	ALS70U274NT063	ALS70A274NT063	Match
Manufacturer	KEMET	KEMET	✓
Series	ALS70	ALS70	✓
Capacitance	270000 µF	270000 µF	✓
Voltage Rating	63 V	63 V	✓
Tolerance	±20%	±20%	✓
ESR @ 100Hz	7 mOhm	7 mOhm	✓
Lifetime @ 85°C	20000 Hrs	20000 Hrs	✓
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	✓
Ripple Current @ 100Hz	34.2 A	34.2 A	✓
Ripple Current @ 10kHz	35.5 A	35.5 A	✓
Impedance	8 mOhms	8 mOhms	✓
Package Type	Radial, Can - Screw Terminals	Radial, Can - Screw Terminals	✓
Mounting Type	Chassis Mount	Chassis Mount	✓
Diameter	3.031" (77.00 mm)	3.031" (77.00 mm)	✓
Height	8.740" (222.00 mm)	8.740" (222.00 mm)	✓
Lead Spacing	1.252" (31.80 mm)	1.252" (31.80 mm)	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
MSL Rating	1 (Unlimited)	1 (Unlimited)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
Product Status	Active	Active	✓

Engineering Selection Recommendations

Both the ALS70U274NT063 and ALS70A274NT063 are active products from KEMET with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on inventory availability and lead time requirements, as they are electrically and mechanically identical.

The ALS70U274NT063 is available with 676 pieces in stock. The ALS70A274NT063 is available with 1162 pieces in stock. Both parts meet all regulatory and compliance requirements for deployment in general-purpose applications requiring 270000 µF capacitance at 63 V with screw terminal connections.

No technical differentiation exists between these parts based on the provided specifications. Component selection may be determined by procurement logistics and supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can ALS70A274NT063 be used as a direct replacement for ALS70U274NT063?

A: Yes. Both parts are parametrically equivalent across all electrical specifications, mechanical dimensions, and compliance certifications. Direct substitution is supported without circuit modification.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts share identical diameter (3.031" / 77.00 mm), height (8.740" / 222.00 mm), and lead spacing (1.252" / 31.80 mm). Mounting footprints are identical.

Q: Do both parts have the same screw terminal configuration?

A: Yes. Both parts use identical Radial, Can - Screw Terminals package type with 1.252" (31.80 mm) lead spacing for chassis mount applications.

Q: What is the difference between ALS70U and ALS70A base product numbers?

A: The base product numbers differ, but the parametric specifications for the 270000 µF 63 V variants are identical. Both are active products from KEMET.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, carry MSL rating of 1 (Unlimited), and share identical ECCN and HTSUS classifications.

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

A: The ripple current rating is 34.2 A at 100 Hz and 35.5 A at 10 kHz for both parts.

Q: What is the expected lifetime of these capacitors?

A: Both parts are rated for 20000 hours at 85°C operating temperature.

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