EET-HC2C681BA 680µF 160V Aluminum Electrolytic Capacitor Equivalent & Substitute Parts

Part Overview

The EET-HC2C681BA is a 680µF 160V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Panasonic Electronic Components. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The component is rated for general-purpose applications with a 2000-hour lifetime at 105°C and operates across a temperature range of -40°C to 105°C.

Substiute Parts

EET-HC2C681BA

Panasonic Electronic ComponentsIn Stock: 890EET-HC2C681BA Datasheet

Current PartRFQ

EKMQ161VSN681MP30S

Chemi-ConIn Stock: 848EKMQ161VSN681MP30S Datasheet

DirectRFQ

160MXG680MEFCSN22X30

RubyconIn Stock: 1107160MXG680MEFCSN22X30 Datasheet

UpgradeRFQ

381LQ681M160H022

Cornell Dubilier Electronics (CDE)In Stock: 733381LQ681M160H022 Datasheet

Parametric EquivalentRFQ

LGG2C681MELZ30

NichiconIn Stock: 274001LGG2C681MELZ30 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EET-HC2C681BA is determined by strict adherence to the following parameters:

• Capacitance: 680 µF (exact match required)
• Voltage Rating: 160 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Case Diameter: 0.866" (22.00mm) (exact match required)
• Height (Seated Max): 1.260" (32.00mm) or equivalent within mechanical tolerance
• Mounting Type: Through Hole (exact match required)
• Polarization: Polar (exact match required)

The substitute parts are categorized as follows:

Direct Manufacturer Equivalent: EKMQ161VSN681MP30S (Chemi-Con KMQ series) meets all electrical and mechanical parameters with active product status.

Upgrade Equivalent: 160MXG680MEFCSN22X30 (Rubycon MXG series) meets all parameters with enhanced lifetime rating (3000 Hrs @ 105°C vs. 2000 Hrs).

Parametric Equivalents: 381LQ681M160H022 (Cornell Dubilier Electronics 381LQ series) and LGG2C681MELZ30 (Nichicon LGG series) match all critical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed meet the core electrical and mechanical requirements for direct replacement of the EET-HC2C681BA. Selection should be based on product availability, compliance requirements, and operational temperature range constraints.

EKMQ161VSN681MP30S (Chemi-Con): Active product status with ROHS3 compliance. Operating temperature range limited to -25°C to 105°C. Suitable for applications not requiring extended low-temperature operation below -25°C.

160MXG680MEFCSN22X30 (Rubycon): Active product status with ROHS3 compliance and enhanced lifetime rating of 3000 hours at 105°C. Height dimension of 1.256" (31.90mm) is within mechanical tolerance. Recommended for applications requiring extended component life.

381LQ681M160H022 (Cornell Dubilier Electronics): Active product status with ROHS3 compliance. Matches original operating temperature range of -40°C to 105°C and ESR specification of 293 mOhm @ 120Hz. Suitable for applications requiring full temperature range operation.

LGG2C681MELZ30 (Nichicon): Active product status with ROHS3 compliance and highest inventory availability. Matches original operating temperature range of -40°C to 105°C. Suitable for high-volume procurement scenarios.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different operating temperature range?

A: The EKMQ161VSN681MP30S and 160MXG680MEFCSN22X30 have a minimum operating temperature of -25°C, compared to the original -40°C specification. Use these parts only if your application does not require operation below -25°C. The 381LQ681M160H022 and LGG2C681MELZ30 maintain the full -40°C to 105°C range.

Q: What is the significance of the height difference in the Rubycon part?

A: The 160MXG680MEFCSN22X30 has a seated height of 1.256" (31.90mm) versus 1.260" (32.00mm) for the original. This 0.004" difference is within standard mechanical tolerance and does not affect PCB layout or component fitment for snap-in mounting applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts carry ROHS3 compliance certification, meeting current environmental and regulatory requirements.

Q: Which substitute part offers the longest operational life?

A: The 160MXG680MEFCSN22X30 (Rubycon MXG series) is rated for 3000 hours at 105°C, compared to 2000 hours for all other parts listed.

Q: Can I mix substitute parts in the same design?

A: Yes, all substitute parts meet identical electrical and mechanical specifications for the core parameters (capacitance, voltage, tolerance, package, lead spacing, and case diameter). They are mechanically and electrically interchangeable within the constraints of their individual operating temperature ranges and lifetime ratings.

Q: What is the difference between "Direct Manufacturer Equivalent," "Upgrade Equivalent," and "Parametric Equivalent" classifications?

A: Direct Manufacturer Equivalent indicates a part from a different manufacturer meeting all specifications. Upgrade Equivalent indicates enhanced performance characteristics (longer lifetime). Parametric Equivalent indicates full specification match across all provided parameters.