686CKH100M Equivalent & Substitute Parts

Part Overview

The 686CKH100M is a 68 µF, 100 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the CKH series. This radial, through-hole component is designed for general-purpose applications requiring stable capacitance and reliable performance across industrial temperature ranges. The part is currently Active in product status with 877 units in stock. Substitute parts are identified based on matching electrical specifications and mechanical compatibility to ensure functional equivalence in circuit applications.

Substiute Parts

686CKH100M

Cornell Dubilier / Illinois CapacitorIn Stock: 931686CKH100M Datasheet

Current PartRFQ

100ZL68MEFC10X16

RubyconIn Stock: 1951100ZL68MEFC10X16 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 686CKH100M is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance: 68 µF (exact match)
• Voltage Rating: 100 V (exact match or higher)
• Tolerance: ±20% (matching or tighter tolerance acceptable)
• Polarization: Polar (must match)
• Operating Temperature Range: -40°C ~ 105°C (must encompass or match)

Mechanical Equivalence Requirements:

• Mounting Type: Through Hole (exact match)
• Package / Case: Radial, Can (exact match)
• Lead Spacing: 0.197" (5.00mm) (exact match)
• Size / Dimension: 0.394" Dia (10.00mm) (exact match)
• Height - Seated (Max): 0.689" (17.50mm) (exact match)

Compliance Requirements:

• RoHS Status: ROHS3 Compliant (required for regulatory compatibility)

The identified substitute part 100ZL68MEFC10X16 (Rubycon ZL series) meets all electrical and mechanical equivalence criteria, enabling direct replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The 100ZL68MEFC10X16 (Rubycon ZL series) is electrically and mechanically equivalent to the 686CKH100M. Both parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial and commercial applications.

The substitute part demonstrates extended lifetime performance (4000 Hrs @ 105°C versus 2000 Hrs @ 105°C), indicating enhanced thermal stability. However, the substitute part carries Obsolete product status, whereas the main part is Active. This status difference does not affect functional compatibility but may influence long-term supply availability.

Selection between these parts should be based on supply chain requirements, inventory availability, and application-specific lifetime expectations. Both parts are suitable for general-purpose applications within the specified operating temperature and voltage parameters.

Frequently Asked Questions (FAQ)

Q: Can the 100ZL68MEFC10X16 be used as a direct replacement for the 686CKH100M?

A: Yes. Both parts share identical electrical specifications (68 µF, 100 V, ±20% tolerance) and mechanical dimensions (0.394" diameter, 0.689" height, 5.00mm lead spacing). Both are through-hole radial capacitors with polar configuration and ROHS3 compliance. Direct PCB substitution is supported.

Q: What is the significance of the different lifetime ratings?

A: The 686CKH100M is rated for 2000 hours at 105°C, while the 100ZL68MEFC10X16 is rated for 4000 hours at 105°C. Both ratings are valid for their respective manufacturers' specifications. The extended lifetime of the substitute part indicates longer operational durability under sustained thermal stress, but does not affect compatibility in applications designed for either rating.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution in regulated applications.

Q: Does the product status difference (Active vs. Obsolete) affect compatibility?

A: Product status does not affect electrical or mechanical compatibility. The Active status of the 686CKH100M indicates current manufacturing and supply availability. The Obsolete status of the 100ZL68MEFC10X16 indicates discontinued production by Rubycon. Substitution decisions should account for long-term supply chain requirements.

Q: Are the lead spacing and package dimensions identical?

A: Yes. Both parts feature 0.197" (5.00mm) lead spacing, 0.394" (10.00mm) diameter, and 0.689" (17.50mm) maximum seated height. PCB footprints are identical, enabling direct component substitution without layout modifications.