380LQ331M315K012 Aluminum Electrolytic Capacitor - Equivalent & Substitute Parts

Part Overview

The 380LQ331M315K012 is a 330 µF, 315 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 380LQ series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring stable capacitance and low equivalent series resistance over extended operating periods. The part is Active in product status with 782 units currently in stock. Substitute parts are identified when original inventory becomes unavailable or when application requirements permit operation at higher voltage ratings while maintaining identical capacitance and form factor specifications.

Substiute Parts

380LQ331M315K012

Cornell Dubilier Electronics (CDE)In Stock: 823380LQ331M315K012 Datasheet

Current PartRFQ

380LQ331M400K022

Cornell Dubilier Electronics (CDE)In Stock: 4181380LQ331M400K022 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 380LQ331M315K012 is permitted only when the following conditions are met:

Mandatory Matching Parameters:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Series: 380LQ (same product family)
• Package / Case: Radial, Can - Snap-In (identical form factor)
• Mounting Type: Through Hole (identical mounting method)
• Lead Spacing: 0.394" (10.00 mm) (exact match required)
• Diameter: 1.181" (30.00 mm) (exact match required)
• Polarization: Polar (exact match required)

Allowable Variation Parameters:

• Voltage - Rated: May be equal to or greater than 315 V
• ESR @ 120Hz: May be equal to or lower than 603 mOhm
• Lifetime @ 85°C: May be equal to or greater than 2000 Hrs
• Operating Temperature Range: May be equal to or wider than -40°C ~ 85°C
• Height - Seated (Max): May be equal to or greater than 1.063" (27.00 mm)
• Ripple Current: May be equal to or greater than specified values

The substitute part 380LQ331M400K022 meets all mandatory matching criteria and provides enhanced voltage rating (400 V vs. 315 V), making it suitable for applications where the original part is unavailable and the circuit design permits operation at the higher voltage specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (380LQ331M315K012): Use the original 380LQ331M315K012 when the application circuit is designed for 315 V operation and the part is available. This part is Active in product status with ROHS3 compliance and REACH unaffected designation, confirming regulatory compliance for industrial and commercial applications.

Substitute Part Selection (380LQ331M400K022): The 380LQ331M400K022 is a valid substitute when the original part is unavailable and the following conditions are confirmed:

1. The circuit design permits operation at 400 V rated voltage (higher than the original 315 V specification)
2. The PCB layout accommodates the increased height of 1.260" (32.00 mm) versus the original 1.063" (27.00 mm)
3. The operating temperature range of -25°C ~ 85°C is acceptable for the application (narrower than the original -40°C ~ 85°C)
4. Both parts share identical capacitance (330 µF), tolerance (±20%), ESR (603 mOhm @ 120Hz), and lifetime (2000 Hrs @ 85°C) specifications

The substitute part is Active in product status with ROHS3 compliance and REACH unaffected designation, matching the regulatory profile of the original part. Higher ripple current ratings (1.9 A @ 120 Hz and 2.66 A @ 20 kHz) provide additional performance margin.

Frequently Asked Questions (FAQ)

Q: Can the 380LQ331M400K022 be used as a direct replacement for the 380LQ331M315K012?

A: The 380LQ331M400K022 is mechanically and electrically compatible for substitution provided that: (1) the circuit design operates at or below 400 V, (2) the PCB layout accommodates the 0.197" (5.00 mm) additional height, and (3) the operating temperature range of -25°C ~ 85°C meets application requirements. The capacitance, tolerance, ESR, and lifetime specifications are identical.

Q: What is the primary difference between these two parts?

A: The main differences are: (1) Voltage rating: 400 V (substitute) versus 315 V (original), (2) Height: 1.260" (32.00 mm) (substitute) versus 1.063" (27.00 mm) (original), and (3) Operating temperature minimum: -25°C (substitute) versus -40°C (original). All other electrical and mechanical parameters are identical.

Q: Are both parts RoHS compliant?

A: Yes, both the 380LQ331M315K012 and 380LQ331M400K022 are ROHS3 compliant and REACH unaffected, confirming compliance with current environmental and regulatory standards.

Q: What is the lead spacing for both parts?

A: Both parts have identical lead spacing of 0.394" (10.00 mm), ensuring compatibility with the same PCB footprint and snap-in mounting hardware.

Q: Can the substitute part be used in applications requiring -40°C operation?

A: No. The 380LQ331M400K022 has a minimum operating temperature of -25°C, whereas the original 380LQ331M315K012 operates down to -40°C. Applications requiring -40°C operation must use the original part or identify an alternative substitute with matching low-temperature specifications.

Q: Is the increased height of the substitute part a concern?

A: The substitute part is 0.197" (5.00 mm) taller than the original. PCB layout and enclosure clearance must be verified before substitution. If vertical space is constrained, the original part must be used.

Q: Do both parts have the same ESR specification?

A: Yes, both parts have identical ESR of 603 mOhm @ 120Hz, ensuring equivalent performance in ripple current filtering and thermal characteristics.