AEB686M2ES44T-F Equivalent & Substitute Parts

Part Overview

The AEB686M2ES44T-F is a 68 µF, 250 V aluminum electrolytic capacitor in surface-mount radial can format, manufactured by Cornell Dubilier Electronics (CDE). This component is rated for 5000 hours at 105°C and is designated as obsolete. Due to its obsolete status and potential supply constraints, identifying equivalent substitute parts is necessary to ensure continued availability and support for legacy system designs and repairs.

Substiute Parts

AEB686M2ES44T-F

Cornell Dubilier Electronics (CDE)In Stock: 771AEB686M2ES44T-F Datasheet

Current PartRFQ

EEV-EB2E680M

Panasonic Electronic ComponentsIn Stock: 3191EEV-EB2E680M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AEB686M2ES44T-F must maintain electrical equivalence across the following critical parameters:

• Capacitance: Exactly 68 µF
• Voltage Rating: Minimum 250 V
• Tolerance: ±20% or better
• Polarization: Polar (electrolytic)
• Operating Temperature Range: -25°C to 105°C minimum
• Lifetime Rating: 5000 hours at 105°C or greater
• Ripple Current Handling: Minimum 544.5 mA @ 120 Hz and 990 mA @ 100 kHz
• Mounting Type: Surface Mount, Radial Can format
• Physical Dimensions: Compatible with 0.709" diameter and 0.748" x 0.748" land pattern

The EEV-EB2E680M from Panasonic Electronic Components meets all these parameters and qualifies as a direct functional substitute.

Parameter Comparison

Engineering Selection Recommendations

The EEV-EB2E680M qualifies as a functional substitute based on matching electrical specifications and compliance ratings. Both components are rated for identical capacitance, voltage, temperature range, ripple current, and moisture sensitivity. The primary design consideration is the seated height difference: the Panasonic EEV-EB2E680M has a maximum height of 0.866" (22.00 mm) compared to the CDE component's 0.846" (21.50 mm), representing a 0.020" (0.50 mm) increase. This height differential must be evaluated against the available clearance in the target assembly.

The Panasonic component maintains RoHS compliance (RoHS Compliant status compared to ROHS3), ensuring compatibility with modern manufacturing and environmental standards. Current inventory availability favors the Panasonic part, with 3,082 units in stock compared to 759 units of the original CDE component.

Frequently Asked Questions (FAQ)

Q: Can the EEV-EB2E680M be used as a direct 1:1 replacement for the AEB686M2ES44T-F?

A: Yes, from an electrical standpoint. Both components share identical capacitance (68 µF), voltage rating (250 V), tolerance (±20%), lifetime rating (5000 Hrs @ 105°C), operating temperature range (-25°C to 105°C), and ripple current specifications. The land pattern and mounting type are also identical. However, the physical height differs by 0.020" (0.50 mm), which must be verified against available PCB clearance.

Q: What is the significance of the height difference between these two parts?

A: The EEV-EB2E680M maximum seated height is 0.866" (22.00 mm) versus the AEB686M2ES44T-F at 0.846" (21.50 mm). This 0.020" (0.50 mm) difference may impact designs with tight vertical spacing constraints. Design verification is required if clearance margins are less than 1 mm.

Q: Are both components RoHS compliant?

A: Yes. The AEB686M2ES44T-F carries ROHS3 compliance, and the EEV-EB2E680M carries RoHS compliance. Both meet environmental regulatory requirements for lead-free and restricted hazardous substances standards.

Q: What are the land pattern requirements for both parts?

A: Both components require identical surface-mount land sizes: 0.748" L x 0.748" W (19.00 mm x 19.00 mm). No PCB layout redesign is necessary from a landing pattern perspective.

Q: Can these parts be interchanged based on ripple current ratings?

A: Yes. Both components are rated for 544.5 mA at 120 Hz and 990 mA at 100 kHz, allowing direct substitution in applications requiring these ripple current specifications.

Q: What should be considered when transitioning from the obsolete AEB686M2ES44T-F?

A: Primary considerations include verifying the 0.50 mm height clearance, confirming RoHS compliance requirements for the target application, and ensuring the substitute part's availability aligns with production scheduling. Both components share identical electrical performance specifications.

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