688LMB063M2DH Equivalent & Substitute Parts Reference

Part Overview

The 688LMB063M2DH is a 6800 µF, 63 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LMB series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring high capacitance at moderate voltage ratings. The part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when alternative performance characteristics are required.

Substiute Parts

688LMB063M2DH

Cornell Dubilier / Illinois CapacitorIn Stock: 1008688LMB063M2DH Datasheet

Current PartRFQ

SLP682M063E9P3

Cornell Dubilier Electronics (CDE)In Stock: 4154SLP682M063E9P3 Datasheet

DirectRFQ

LGY1J682MELB50

NichiconIn Stock: 934LGY1J682MELB50 Datasheet

UpgradeRFQ

381LX682M063K052

Cornell Dubilier Electronics (CDE)In Stock: 8808381LX682M063K052 Datasheet

Parametric EquivalentRFQ

LGU1J682MELB

NichiconIn Stock: 1042LGU1J682MELB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 688LMB063M2DH is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 6800 µF (exact match required)
• Voltage Rating: 63 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Package / Case: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Size / Dimension: 1.181" Dia (30.00mm) (exact match required)
• Operating Temperature Range: -40°C ~ 105°C (exact match required)

Performance Parameters (Allowed Variation):

• ESR (Equivalent Series Resistance): Lower values indicate improved performance
• Lifetime @ Temperature: Equal or greater values are acceptable
• Ripple Current: Equal or greater values are acceptable

All substitute parts listed meet the mandatory matching parameters. Variations in ESR, lifetime, and ripple current represent performance differences that do not affect functional compatibility in the application.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the 688LMB063M2DH based on matching mandatory electrical and mechanical parameters. Selection among these parts should be based on the following criteria:

Direct Manufacturer Equivalent (SLP682M063E9P3): SLP682M063E9P3 from Cornell Dubilier Electronics is a direct equivalent manufactured by the same parent company as the main part. This part offers improved ESR performance (59 mOhm vs. 73.14 mOhm) and maintains identical ripple current ratings at 120 Hz. Height is 1.969" (50.00mm), which is 0.078" shorter than the main part. This part is suitable for applications where reduced ESR is beneficial and physical height constraints allow the variation.

Upgrade Option (LGY1J682MELB50): LGY1J682MELB50 from Nichicon represents an upgrade path with extended lifetime rating of 5000 Hrs @ 105°C compared to 3000 Hrs for the main part. This part is recommended for applications requiring enhanced reliability and longer operational life. Height matches the main part at 2.047" (52.00mm). Ripple current at 120 Hz is lower (3.1 A), which may be a consideration in high-ripple applications.

Parametric Equivalents (381LX682M063K052 and LGU1J682MELB): Both 381LX682M063K052 and LGU1J682MELB are parametric equivalents with identical lifetime ratings (3000 Hrs @ 105°C) and matching physical dimensions. These parts provide alternative sourcing options from established manufacturers. All parts maintain ROHS3 compliance and REACH unaffected status.

All substitute parts are Active status products with full regulatory compliance (ROHS3, REACH, EAR99, HTSUS 8532.22.0040).

Frequently Asked Questions (FAQ)

Q: Can SLP682M063E9P3 be used as a direct replacement for 688LMB063M2DH?

A: Yes. SLP682M063E9P3 meets all mandatory electrical and mechanical parameters. The primary difference is reduced height (1.969" vs. 2.047") and improved ESR (59 mOhm vs. 73.14 mOhm). Verify that the reduced height does not conflict with PCB layout or mechanical constraints before substitution.

Q: What is the advantage of LGY1J682MELB50 over the main part?

A: LGY1J682MELB50 provides extended lifetime rating of 5000 Hrs @ 105°C compared to 3000 Hrs for 688LMB063M2DH. This extended rating is suitable for applications requiring higher reliability margins or longer service life. All other electrical and mechanical parameters are equivalent.

Q: Are 381LX682M063K052 and LGU1J682MELB interchangeable with 688LMB063M2DH?

A: Yes. Both parts are parametric equivalents with matching capacitance, voltage, tolerance, temperature range, lifetime, and physical dimensions. These parts provide alternative sourcing from Cornell Dubilier Electronics and Nichicon respectively.

Q: Does the height difference of SLP682M063E9P3 affect compatibility?

A: The height difference is 0.078" (2.00mm). This variation must be evaluated against specific PCB layout, mechanical clearance, and mounting constraints. If the application has strict height limitations, the main part or other equivalents with 2.047" height should be used.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the main part 688LMB063M2DH.

Q: What is the significance of ESR differences among the substitute parts?

A: ESR (Equivalent Series Resistance) affects thermal performance and ripple current handling. Lower ESR values (such as 59 mOhm in SLP682M063E9P3) indicate better performance in high-frequency ripple current applications. The main part has ESR of 73.14 mOhm. Parts without specified ESR values do not provide this performance metric in the available data.

Q: Can these parts be used interchangeably in existing designs?

A: All substitute parts maintain identical lead spacing (0.394" / 10.00mm), diameter (1.181" / 30.00mm), and mounting type (Through Hole, Radial, Can - Snap-In). Physical interchangeability is confirmed. Electrical interchangeability is confirmed for all mandatory parameters. Height variations must be evaluated for specific applications.