Equivalent & Substitute Parts for 380LQ331M315J022

Part Overview

The Cornell Dubilier Electronics (CDE) 380LQ331M315J022 is a 330 µF, 315 V aluminum electrolytic capacitor in radial, can snap-in configuration. This component is classified as Active product status and is designed for general-purpose applications requiring stable capacitance and low equivalent series resistance. The part is ROHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance can be achieved within the allowed parameter tolerances while maintaining mechanical compatibility and compliance certifications.

Substiute Parts

380LQ331M315J022

Cornell Dubilier Electronics (CDE)In Stock: 1235380LQ331M315J022 Datasheet

Current PartRFQ

380LQ331M350J032

Cornell Dubilier Electronics (CDE)In Stock: 1439380LQ331M350J032 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the 380LQ331M315J022 is based on the following allowed parameters:

Capacitance Match: Substitute parts must maintain 330 µF capacitance value with ±20% tolerance to ensure circuit functionality.

Voltage Rating: Substitute parts may have equal or higher voltage ratings. Higher voltage ratings provide additional safety margin and are electrically compatible in circuits designed for lower voltages.

ESR and Ripple Current: Substitute parts must maintain equivalent series resistance at 603 mOhm @ 120Hz to ensure thermal performance and ripple current handling capability remains within design specifications.

Thermal Characteristics: Substitute parts must maintain 2000 Hrs @ 85°C lifetime rating to ensure equivalent operational durability.

Mechanical Compatibility: Substitute parts must retain radial, can snap-in package configuration with 10.00 mm lead spacing and through-hole mounting to ensure PCB compatibility without redesign.

Compliance: Substitute parts must maintain ROHS3 compliance and MSL 1 rating to satisfy regulatory and environmental requirements.

The identified substitute part 380LQ331M350J032 meets all substitution criteria with the exception of increased voltage rating (350 V vs. 315 V) and modified physical height, which represent acceptable variations within engineering standards.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (380LQ331M315J022): Select this part when the application circuit is designed specifically for 315 V operation and physical height is constrained to 32.00 mm maximum. This part maintains Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute Part Selection (380LQ331M350J032): The 380LQ331M350J032 is electrically compatible as a substitute when the following conditions are met:

1. Circuit design permits operation at 350 V rated voltage (higher voltage rating does not degrade performance in 315 V circuits)
2. PCB layout accommodates increased component height of 37.00 mm (5.00 mm taller than primary part)
3. Operating temperature range requirement does not extend below -25°C (substitute has -25°C lower limit vs. -40°C for primary part)
4. Higher ripple current ratings (1.88 A @ 120Hz and 2.63 A @ 20kHz) are acceptable or beneficial to circuit design

Both parts maintain identical capacitance, tolerance, ESR, thermal lifetime, lead spacing, and compliance certifications. The substitute part offers enhanced voltage and ripple current margins with the trade-off of increased physical height and narrower low-temperature operating range.

Frequently Asked Questions (FAQ)

Q: Can the 380LQ331M350J032 be used as a direct replacement for the 380LQ331M315J022?

A: The 380LQ331M350J032 is electrically compatible as a substitute provided that PCB layout accommodates the 5.00 mm height increase (37.00 mm vs. 32.00 mm) and the circuit does not require operation below -25°C. The higher voltage rating (350 V) is compatible with circuits designed for 315 V operation.

Q: What is the significance of the voltage rating difference?

A: The substitute part carries a 350 V voltage rating compared to the primary part's 315 V rating. Higher voltage ratings provide additional electrical stress margin and are suitable for use in circuits rated at or below the substitute's voltage specification. This represents an upgrade in voltage capability.

Q: Are the ESR and ripple current specifications identical?

A: ESR at 120Hz is identical at 603 mOhm for both parts. Ripple current ratings are slightly higher for the substitute part (1.88 A @ 120Hz vs. 1.82 A, and 2.63 A @ 20kHz vs. 2.55 A). These differences are within normal manufacturing variation for the 380LQ series.

Q: What is the impact of the operating temperature range difference?

A: The primary part operates from -40°C to 85°C, while the substitute operates from -25°C to 85°C. If the application requires operation below -25°C, the primary part must be used. For applications within -25°C to 85°C range, both parts are suitable.

Q: Are both parts ROHS3 compliant?

A: Yes, both the 380LQ331M315J022 and 380LQ331M350J032 are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating. Both parts satisfy equivalent regulatory and environmental requirements.

Q: What is the lead spacing and is it identical for both parts?

A: Both parts maintain 10.00 mm lead spacing, ensuring identical PCB footprint compatibility. No PCB redesign is required from a lead spacing perspective.

Q: Can height difference affect PCB assembly?

A: The substitute part is 5.00 mm taller (37.00 mm vs. 32.00 mm seated height). PCB layout must accommodate this increased height to prevent mechanical interference with adjacent components or enclosure constraints. Verify clearance before substitution.