685KXM100M Equivalent & Substitute Parts

Part Overview

The 685KXM100M is a 6.8 µF, 100 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as Active product status and is designed for general-purpose applications requiring polar electrolytic capacitor functionality. The part is currently in stock with 946 pieces available.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory depletion, or when design requirements permit alternative manufacturers meeting equivalent electrical and mechanical specifications. The substitute identified for this part is the UPM2A6R8MED from Nichicon, which carries Obsolete product status and requires evaluation based on parametric equivalence and compliance certifications.

Substiute Parts

685KXM100M

Cornell Dubilier / Illinois CapacitorIn Stock: 974685KXM100M Datasheet

Current PartRFQ

UPM2A6R8MED

NichiconIn Stock: 3803UPM2A6R8MED Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 685KXM100M is determined by strict parametric matching across the following critical criteria:

Electrical Parameters (Must Match):

• Capacitance: 6.8 µF
• Voltage Rating: 100 V
• Tolerance: ±20%
• Polarization: Polar
• Lifetime: 2000 Hrs @ 105°C
• Operating Temperature Range: -55°C ~ 105°C

Mechanical Parameters (Must Match):

• Lead Spacing: 0.098" (2.50mm)
• Diameter: 0.248" (6.30mm)
• Height: 0.492" (12.50mm)
• Mounting Type: Through Hole
• Package Type: Radial, Can

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected
• ECCN: EAR99

The UPM2A6R8MED from Nichicon meets all electrical, mechanical, and compliance requirements specified above, qualifying it as a parametric equivalent substitute for the 685KXM100M.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (685KXM100M): The 685KXM100M maintains Active product status and is currently in stock with 946 pieces available. This part is the preferred selection for new designs and ongoing production when inventory is available. The part carries full RoHS3 compliance and REACH unaffected status, meeting current environmental regulations.

Substitute Part (UPM2A6R8MED): The UPM2A6R8MED is classified as Obsolete and carries AEC-Q200 automotive qualification. This part meets all parametric requirements for electrical and mechanical substitution. However, the Obsolete status indicates this part is no longer in active production. The higher ripple current rating (41 mA vs. 34 mA) and lower impedance (1.9 Ohms vs. 5.4 Ohms) represent performance characteristics that differ from the primary part, though both meet the specified 2000 Hrs @ 105°C lifetime requirement.

Selection between these parts should be based on availability, supply chain requirements, and whether the automotive-grade qualification (AEC-Q200) is required for the application. Both parts satisfy the core electrical and mechanical parameters for direct substitution in through-hole radial can package applications.

Frequently Asked Questions (FAQ)

Q: Can the UPM2A6R8MED be used as a direct replacement for the 685KXM100M on a PCB?

A: Yes. Both parts share identical lead spacing (0.098" / 2.50mm), diameter (0.248" / 6.30mm), height (0.492" / 12.50mm), and mounting type (Through Hole, Radial Can). No PCB layout modifications are required for physical substitution.

Q: What are the key electrical differences between these two parts?

A: Both parts have identical capacitance (6.8 µF), voltage rating (100 V), tolerance (±20%), and lifetime specification (2000 Hrs @ 105°C). The UPM2A6R8MED has a lower impedance (1.9 Ohms vs. 5.4 Ohms) and higher ripple current capability (41 mA vs. 34 mA). The ESR value for the UPM2A6R8MED is not specified in the provided data.

Q: Why is the UPM2A6R8MED marked as Obsolete?

A: Obsolete status indicates the part is no longer in active production by the manufacturer. This does not affect its electrical or mechanical performance for substitution purposes, but may impact long-term availability and supply chain planning.

Q: Does the UPM2A6R8MED have any additional certifications?

A: Yes. The UPM2A6R8MED carries AEC-Q200 automotive qualification, which the 685KXM100M does not specify. This qualification is relevant only if automotive-grade components are required for the application.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the 685KXM100M and UPM2A6R8MED are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the operating temperature range for both parts?

A: Both parts operate across the identical temperature range of -55°C to 105°C, with a rated lifetime of 2000 hours at the maximum temperature of 105°C.