Equivalent & Substitute Parts for 686KXM063M

Part Overview

The 686KXM063M is a 68 µF, 63 V aluminum electrolytic capacitor in radial, can packaging manufactured by Cornell Dubilier / Illinois Capacitor. This component is rated for general-purpose applications with a 4000-hour lifetime at 105°C and an operating temperature range of -55°C to 105°C. The product status is Active, indicating continued availability for new designs.

Substitute parts become necessary when the original manufacturer part is unavailable, when design requirements shift to higher reliability specifications (such as automotive-grade components with AEC-Q200 certification), or when improved electrical performance characteristics are required. The substitutes listed maintain the same fundamental electrical and mechanical specifications while offering enhanced performance metrics or extended component availability.

Substiute Parts

686KXM063M

Cornell Dubilier / Illinois CapacitorIn Stock: 694686KXM063M Datasheet

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UPJ1J680MPD6

NichiconIn Stock: 1592UPJ1J680MPD6 Datasheet

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UPM1J680MPD6

NichiconIn Stock: 2407UPM1J680MPD6 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 68 µF (exact match required)
• Voltage Rating: 63 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: Radial, Can (exact match required)
• Lead Spacing: 0.197" (5.00 mm) (exact match required)
• Diameter: 0.394" (10.00 mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -55°C to 105°C (minimum required performance)

The two substitute parts listed—UPJ1J680MPD6 and UPM1J680MPD6, both manufactured by Nichicon—meet all electrical and mechanical equivalence criteria. Both parts are rated for 68 µF, 63 V, ±20% tolerance, and feature identical package dimensions and lead spacing. The primary differentiation between these substitutes and the original part, as well as between the two substitutes themselves, lies in lifetime ratings, ESR characteristics, ripple current capabilities, impedance values, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

For Active Production Requirements: The 686KXM063M (Cornell Dubilier / Illinois Capacitor) is the primary selection, as it carries Active product status and maintains continuity with existing designs.

For Extended Lifetime Applications: Both UPJ1J680MPD6 and UPM1J680MPD6 provide 5000-hour lifetime ratings at 105°C, compared to the 4000-hour rating of the original part, offering improved reliability for long-duration operation.

For Automotive Applications: The UPM1J680MPD6 carries AEC-Q200 automotive-grade certification and is the appropriate selection for automotive-qualified designs. Note that this part has a maximum seated height of 0.571" (14.50 mm), which is 0.020" (0.50 mm) taller than the original part.

For Lower Impedance Requirements: The UPM1J680MPD6 provides the lowest impedance at 190 mOhms, followed by UPJ1J680MPD6 at 280 mOhms, compared to the original part at 400 mOhms. Lower impedance improves high-frequency performance and is advantageous in ripple-critical applications.

Both Nichicon substitutes carry "Not For New Designs" status, indicating they are available for legacy design support and repair applications but should not be selected for new production designs unless specific performance characteristics justify their use.

Frequently Asked Questions (FAQ)

Q: Can UPJ1J680MPD6 or UPM1J680MPD6 be used as direct drop-in replacements for 686KXM063M? A: Both parts are mechanically and electrically equivalent in terms of capacitance, voltage rating, tolerance, lead spacing, and diameter. However, the UPM1J680MPD6 has a maximum seated height of 0.571" (14.50 mm) compared to 0.551" (14.00 mm) for the original part. PCB layout and component clearance must be verified before substitution. The UPJ1J680MPD6 maintains identical height specifications.

Q: What is the significance of the "Not For New Designs" product status on the Nichicon parts? A: "Not For New Designs" indicates that these parts are in mature or end-of-life status at the manufacturer and are available for existing design support and repair applications. For new production designs, the 686KXM063M (Active status) is the recommended selection.

Q: Why should I choose UPM1J680MPD6 over UPJ1J680MPD6? A: UPM1J680MPD6 is appropriate for automotive applications requiring AEC-Q200 certification and offers superior impedance characteristics (190 mOhms vs. 280 mOhms). UPJ1J680MPD6 is suitable for general-purpose applications and maintains the original mechanical height specifications more closely.

Q: How do the ripple current ratings differ between these parts? A: The original 686KXM063M is rated for 200 mA ripple current at 120 Hz and 500 mA at 100 kHz. Both Nichicon substitutes provide 310 mA at 120 Hz. At high frequency (10 kHz for the substitutes vs. 100 kHz for the original), both substitutes deliver 495 mA. Selection depends on the specific frequency characteristics of the application's ripple current profile.

Q: Are all three parts RoHS compliant? A: Yes, all three parts (686KXM063M, UPJ1J680MPD6, and UPM1J680MPD6) are ROHS3 compliant. The UPM1J680MPD6 is marked as REACH Affected, while the other parts are REACH Unaffected, which may be relevant for certain regulatory jurisdictions.