ECE-P2WA681HA Equivalent & Substitute Parts

Part Overview

The ECE-P2WA681HA is a 680 µF, 450 V aluminum electrolytic capacitor manufactured by Panasonic Electronic Components. This radial, can-style snap-in capacitor with 5 leads is designed for general-purpose applications requiring high voltage energy storage and filtering. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

ECE-P2WA681HA

Panasonic Electronic ComponentsIn Stock: 868ECE-P2WA681HA Datasheet

Current PartRFQ

383LX681M450B052V

Cornell Dubilier Electronics (CDE)In Stock: 741383LX681M450B052V Datasheet

DirectRFQ

383LX681M450B052VS

Cornell Dubilier Electronics (CDE)In Stock: 745383LX681M450B052VS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ECE-P2WA681HA are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance: 680 µF (exact match required)
• Voltage Rating: 450 V (exact match required)
• Tolerance: ±20% (exact match required)
• ESR: 244 mOhm (exact match required)
• Lifetime: 3000 Hrs @ 105°C (exact match required)
• Operating Temperature: -25°C ~ 105°C (exact match required)

Mechanical Compatibility Criteria:

• Package / Case: Radial, Can - Snap-In - 5 Lead (exact match required)
• Mounting Type: Through Hole (exact match required)
• Polarization: Polar (exact match required)

The substitute parts listed below meet all specified electrical and mechanical parameters. Minor variations in physical dimensions (height seated maximum) and ripple current ratings at specific frequencies do not affect functional equivalence within the defined parameter set.

Parameter Comparison

Engineering Selection Recommendations

Both Cornell Dubilier Electronics (CDE) substitute parts, 383LX681M450B052V and 383LX681M450B052VS, are functionally equivalent to the obsolete Panasonic ECE-P2WA681HA based on all specified electrical and mechanical parameters.

Product Status Advantage: Both substitute parts carry Active product status, ensuring long-term availability and supply chain continuity compared to the obsolete Panasonic part.

Compliance Certifications: Both CDE alternatives are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements. The original Panasonic part does not specify these compliance statuses.

Physical Compatibility: The substitute parts have a maximum seated height of 2.047" (52.00 mm) compared to the original 1.969" (50.00 mm). This 2 mm difference must be evaluated against available board space and mechanical clearance in the target application.

Selection Criteria: Choose between 383LX681M450B052V and 383LX681M450B052VS based on specific application requirements and supplier availability. Both parts meet the defined substitution parameters.

Frequently Asked Questions (FAQ)

Q: Can the 383LX681M450B052V and 383LX681M450B052VS be used interchangeably?

A: Yes. Both parts meet identical electrical specifications (680 µF, 450 V, ±20%, 244 mOhm ESR, 3000 Hrs @ 105°C) and mechanical requirements (Radial, Can - Snap-In - 5 Lead, Through Hole mounting). Selection between them depends on supplier availability and application-specific constraints.

Q: What is the impact of the 2 mm height difference between the original and substitute parts?

A: The substitute parts have a maximum seated height of 2.047" (52.00 mm) versus the original 1.969" (50.00 mm). This 2 mm increase must be evaluated against available vertical clearance on the PCB and within the equipment enclosure. If space is constrained, physical verification is necessary before component selection.

Q: Are the substitute parts suitable for direct replacement without circuit redesign?

A: The substitute parts are electrically and mechanically equivalent based on all specified parameters. However, the increased height requires confirmation of available board clearance. No circuit redesign is necessary if physical space permits the taller component.

Q: What compliance advantages do the CDE substitute parts offer?

A: Both CDE alternatives are ROHS3 Compliant and REACH Unaffected, meeting current environmental regulations. The original Panasonic part does not specify these compliance statuses, making the CDE parts preferable for applications requiring documented regulatory compliance.

Q: Why is the original Panasonic ECE-P2WA681HA classified as obsolete?

A: Obsolete status indicates the part is no longer manufactured or supported by Panasonic. The listed substitute parts from Cornell Dubilier Electronics provide equivalent functionality with Active product status, ensuring ongoing availability and supply chain support.