CDHC102K2R3SR Equivalent & Substitute Parts

Part Overview

The CDHC102K2R3SR is a 1000 F supercapacitor manufactured by Cornell Dubilier Electronics (CDE) with a rated voltage of 2.3 V and radial, can snap-in termination. This component is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing system support and new design implementations. The part operates across a temperature range of -40°C to 60°C with an equivalent series resistance (ESR) of 14 mOhm and a rated lifetime of 1000 hours at 50°C.

Substiute Parts

CDHC102K2R3SR

Cornell Dubilier Electronics (CDE)In Stock: 852CDHC102K2R3SR Datasheet

Current PartRFQ

JJC0E108MSEFBB

NichiconIn Stock: 838JJC0E108MSEFBB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDHC102K2R3SR supercapacitor is determined by the following critical parameters:

Electrical Compatibility:

• Capacitance value of 1000 F (exact match required)
• Rated voltage of 2.3 V or higher (substitute must support the original operating voltage)
• ESR performance within acceptable operational limits
• Operating temperature range that encompasses or exceeds -40°C to 60°C

Mechanical Compatibility:

• Termination type and lead configuration suitable for through-hole or chassis mount applications
• Physical dimensions that permit installation in the original mounting location or equivalent footprint
• Package classification as radial, can-type supercapacitor

Compliance & Status:

• RoHS3 compliance maintained
• Active product status preferred for long-term availability

The substitute part JJC0E108MSEFBB from Nichicon meets the electrical requirements of 1000 F capacitance and exceeds the voltage rating at 2.5 V. However, termination and mounting type differ from the original specification, requiring mechanical design consideration.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement:

The CDHC102K2R3SR is obsolete, and direct pin-for-pin replacement is not available from the provided substitute list. The JJC0E108MSEFBB from Nichicon offers electrical equivalence in capacitance and voltage rating but requires mechanical redesign due to differences in termination type (screw terminals versus PC pins) and mounting configuration (chassis mount versus through-hole).

Electrical Suitability:

The JJC0E108MSEFBB supercapacitor is electrically suitable as a substitute. It provides the same 1000 F capacitance, a higher voltage rating of 2.5 V (compatible with 2.3 V applications), and superior ESR performance at 10 mOhm compared to the original 14 mOhm. The extended lifetime rating of 2000 hours at 60°C exceeds the original specification of 1000 hours at 50°C.

Compliance & Availability:

Both components maintain ROHS3 compliance. The substitute part is active in production, ensuring long-term availability and supply chain stability compared to the obsolete original part.

Physical Integration Considerations:

The substitute part is physically larger (51 mm diameter versus 35 mm, and 123 mm height versus 90 mm). Screw terminal connections require different PCB footprint design and assembly procedures compared to PC pin snap-in termination. These differences necessitate mechanical design review and potential circuit board layout modification.

Temperature Range:

The original part supports operation down to -40°C, while the substitute supports -25°C minimum. Applications requiring operation below -25°C must retain the original part or identify alternative sources.

Frequently Asked Questions (FAQ)

Q: Can the JJC0E108MSEFBB directly replace the CDHC102K2R3SR without modification?

A: No. While both components are 1000 F supercapacitors with compatible electrical ratings, they differ in termination type (screw terminals versus PC pins), mounting method (chassis mount versus through-hole), and physical dimensions. Direct substitution requires mechanical redesign of the mounting interface and PCB footprint.

Q: What are the key electrical parameters that make these parts substitutable?

A: The critical electrical parameters are capacitance (1000 F in both cases), rated voltage (2.3 V original, 2.5 V substitute—compatible), and operating temperature range overlap (-25°C to 60°C for the substitute covers most of the original -40°C to 60°C range). The substitute's lower ESR and extended lifetime are performance improvements.

Q: Does the higher voltage rating of the JJC0E108MSEFBB create any compatibility issues?

A: No. A supercapacitor with a higher voltage rating (2.5 V) is compatible with applications designed for 2.3 V operation. The component operates safely at voltages below its rated maximum.

Q: What is the impact of the larger physical dimensions of the substitute part?

A: The JJC0E108MSEFBB is significantly larger in both diameter (51 mm versus 35 mm) and height (123 mm versus 90 mm). Space constraints in the original design may prevent physical installation without enclosure or mounting structure modification.

Q: Why is the original part obsolete, and what does this mean for long-term supply?

A: The CDHC102K2R3SR is no longer manufactured by Cornell Dubilier Electronics. For applications requiring this component, substitution with an active product such as the JJC0E108MSEFBB ensures continued availability and manufacturing support.

Q: Are there any temperature range limitations when using the substitute?

A: The substitute part operates from -25°C to 60°C, compared to the original -40°C to 60°C. Applications requiring operation below -25°C cannot use the JJC0E108MSEFBB and must identify alternative sources or retain the original component if available.

Q: What is the difference between PC pins and screw terminals in practical application?

A: PC pins are designed for snap-in through-hole mounting on printed circuit boards with fixed pin spacing. Screw terminals require manual connection of wires or conductors to terminal blocks, providing flexibility in lead length and routing but requiring different assembly procedures and PCB design.

Q: How do the tolerance specifications compare between these parts?

A: The original CDHC102K2R3SR has a tighter tolerance of -5% to +10%, while the JJC0E108MSEFBB has a broader tolerance of ±20%. Applications with strict capacitance requirements may be affected by the wider tolerance of the substitute.