LLS2V271MELZ Equivalent & Substitute Parts

Part Overview

The LLS2V271MELZ is a 270 µF, 350 V aluminum electrolytic capacitor manufactured by Nichicon in the LLS series. This radial, can-style snap-in capacitor is rated for 3000 hours at 85°C and is designed for general-purpose applications requiring high-voltage energy storage and filtering. The part is active and ROHS3 compliant. Substitute parts are necessary when the primary part is unavailable, when inventory constraints require alternative sourcing, or when design flexibility permits equivalent performance from alternative manufacturers or series variants.

Key Parameters

Parameter	Value
Capacitance	270 µF
Voltage Rating	350 V
Tolerance	±20%
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-25°C ~ 85°C
Polarization	Polar
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the LLS2V271MELZ is determined by the following critical parameters:

Electrical Equivalence: Capacitance (270 µF), voltage rating (350 V), and tolerance (±20%) must match exactly
Mechanical Compatibility: Package type (Radial, Can - Snap-In), mounting type (Through Hole), and lead spacing (10.00 mm) must be identical to ensure PCB fit
Thermal Performance: Operating temperature range (-25°C ~ 85°C) and polarization (Polar) must be maintained
Compliance: RoHS3 compliance and REACH unaffected status are required for equivalent substitution

All substitute parts listed meet these core criteria. Variations in physical dimensions (diameter and height), ripple current ratings, ESR values, and lifetime specifications are secondary parameters that may differ between substitutes while maintaining functional equivalence.

Parameter Comparison

Parameter	LLS2V271MELZ (Nichicon)	LLS2V271MELA (Nichicon)	LLS2V271MELB (Nichicon)	380LQ271M350H042 (CDE)	380LQ271M350J022 (CDE)
Capacitance	270 µF	270 µF	270 µF	270 µF	270 µF
Voltage Rating	350 V	350 V	350 V	350 V	350 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Operating Temperature	-25°C ~ 85°C	-25°C ~ 85°C	-25°C ~ 85°C	-25°C ~ 85°C	-25°C ~ 85°C
Lifetime @ 85°C	3000 Hrs	3000 Hrs	3000 Hrs	2000 Hrs	2000 Hrs
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Lead Spacing	10.00 mm	10.00 mm	10.00 mm	10.00 mm	10.00 mm
Size / Diameter	22.00 mm	25.00 mm	30.00 mm	22.00 mm	25.00 mm
Height - Seated (Max)	42.00 mm	37.00 mm	27.00 mm	42.00 mm	32.00 mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Nichicon LLS Series (LLS2V271MELA, LLS2V271MELB): These parts are direct Nichicon LLS series variants with identical electrical specifications and 3000-hour lifetime ratings at 85°C. All three Nichicon variants maintain ROHS3 compliance and REACH unaffected status. Selection among these should be based on PCB space constraints, as physical dimensions vary: LLS2V271MELZ (22 mm diameter, 42 mm height), LLS2V271MELA (25 mm diameter, 37 mm height), and LLS2V271MELB (30 mm diameter, 27 mm height).

Cornell Dubilier Electronics 380LQ Series (380LQ271M350H042, 380LQ271M350J022): These parts provide electrical equivalence with identical capacitance, voltage, and tolerance specifications. Both are ROHS3 compliant and REACH unaffected. The primary difference is a reduced lifetime specification of 2000 hours at 85°C compared to the Nichicon 3000-hour rating. These parts are suitable for applications where the reduced thermal lifetime is acceptable. Physical dimensions also differ: 380LQ271M350H042 (22 mm diameter, 42 mm height) and 380LQ271M350J022 (25 mm diameter, 32 mm height).

All listed substitutes maintain the required 10.00 mm lead spacing and through-hole mounting compatibility.

Frequently Asked Questions (FAQ)

Q: Can LLS2V271MELA, LLS2V271MELB, and the Cornell Dubilier 380LQ parts be used interchangeably with LLS2V271MELZ?

A: Yes, all listed parts are electrically equivalent with matching capacitance (270 µF), voltage rating (350 V), tolerance (±20%), and package type (Radial, Can - Snap-In). Lead spacing is identical at 10.00 mm. Physical dimensions vary, so PCB layout must accommodate the specific part's diameter and height.

Q: What is the key difference between Nichicon LLS variants and Cornell Dubilier 380LQ parts?

A: The primary difference is thermal lifetime. Nichicon LLS parts are rated for 3000 hours at 85°C, while Cornell Dubilier 380LQ parts are rated for 2000 hours at 85°C. All other electrical parameters are identical. Both manufacturers' parts are ROHS3 compliant and REACH unaffected.

Q: Do physical dimension differences affect substitution?

A: Physical dimensions (diameter and height) do not affect electrical substitution but must be verified against PCB layout constraints. All parts maintain the same 10.00 mm lead spacing and through-hole mounting type, ensuring mechanical compatibility with the PCB footprint. Verify available board space before selecting a part with larger diameter or height.

Q: Are all substitute parts currently in stock?

A: Inventory status is provided for reference: LLS2V271MELZ (726 pcs), LLS2V271MELA (911 pcs), LLS2V271MELB (1073 pcs), 380LQ271M350H042 (684 pcs), and 380LQ271M350J022 (969 pcs). Availability may change; confirm current stock status with your supplier.

Q: What compliance certifications apply to all substitute parts?

A: All parts listed are ROHS3 compliant and REACH unaffected. ECCN classification is EAR99 for all parts, and HTSUS code is 8532.22.0040.

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