ESRH680M08B Equivalent & Substitute Parts

Part Overview

The ESRH680M08B is a 68 µF, 8 V aluminum polymer capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 2917 (7343 Metric) surface mount package. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design support and procurement. The part delivers 15 mOhm equivalent series resistance with a 1000-hour lifetime rating at 105°C, suitable for general-purpose applications requiring compact form factors and low ESR characteristics.

Substiute Parts

ESRH680M08B

Cornell Dubilier Electronics (CDE)In Stock: 1069ESRH680M08B Datasheet

Current PartRFQ

A700D686M010ATE015

KEMETIn Stock: 1811A700D686M010ATE015 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ESRH680M08B is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Capacitance value: 68 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Type: Aluminum Polymer (exact match required)
• ESR: 15 mOhm (exact match required)

Allowable Variation Parameters:

• Voltage Rating: May be equal to or greater than 8 V
• Operating Temperature Range: May be equal to or exceed -55°C to 105°C
• Lifetime @ Temperature: May be equal to or exceed 1000 Hrs @ 105°C
• Ripple Current @ 100 kHz: May be equal to or exceed 2.5 A
• RoHS Status: Must maintain ROHS3 Compliance or equivalent

The substitute part A700D686M010ATE015 satisfies all critical matching parameters while providing enhanced performance in allowable variation categories, including higher voltage rating (10 V), extended operating temperature range (-55°C to 125°C), and increased ripple current capability (4.1 A @ 100 kHz).

Parameter Comparison

Engineering Selection Recommendations

The A700D686M010ATE015 manufactured by KEMET is a direct functional substitute for the obsolete ESRH680M08B. Selection is based on the following engineering criteria:

Compliance & Certification: Both parts maintain ROHS3 compliance and identical MSL ratings (3, 168 Hours), ensuring compatibility with current manufacturing and environmental standards.

Product Status: The ESRH680M08B is classified as obsolete, while the A700D686M010ATE015 maintains active product status with documented availability (1754 Pcs in stock versus 963 Pcs for the original part). Active status ensures long-term supply chain viability and technical support.

Electrical Compatibility: The substitute part matches all critical electrical parameters: 68 µF capacitance, ±20% tolerance, 15 mOhm ESR, and identical package footprint (2917 / 7343 Metric). The higher voltage rating (10 V versus 8 V) and increased ripple current capability (4.1 A versus 2.5 A @ 100 kHz) provide design margin without introducing incompatibility.

Thermal Performance: The substitute part extends the operating temperature range to 125°C and provides 2000-hour lifetime at 125°C, compared to 1000 hours at 105°C for the original part. This enhancement supports applications with elevated thermal requirements.

Mechanical Compatibility: Identical package dimensions (0.287" L x 0.169" W / 7.30mm x 4.30mm) and surface mount land size ensure direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the A700D686M010ATE015 be used as a direct replacement for the ESRH680M08B on existing PCBs?

A: Yes. Both parts share identical package geometry (2917 / 7343 Metric), surface mount land size (0.287" L x 0.169" W), and electrical specifications for capacitance (68 µF), tolerance (±20%), and ESR (15 mOhm). The substitute part fits the same PCB footprint without modification.

Q: What is the significance of the higher voltage rating on the substitute part?

A: The A700D686M010ATE015 is rated for 10 V compared to the original 8 V rating. In circuit applications, this provides additional voltage margin and does not create incompatibility. The substitute part operates safely at or below the original 8 V design voltage.

Q: Are there dimensional differences between the two parts?

A: The footprint dimensions are identical (0.287" L x 0.169" W / 7.30mm x 4.30mm). The seated height differs slightly: ESRH680M08B is 0.110" (2.80mm) maximum, while A700D686M010ATE015 is 0.122" (3.10mm) maximum. This 0.012" (0.30mm) difference must be evaluated for clearance in applications with height constraints.

Q: What is the packaging difference between the two parts?

A: The ESRH680M08B is supplied in standard packaging, while the A700D686M010ATE015 is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for high-volume surface mount assembly and does not affect component performance or compatibility.

Q: Why is the substitute part recommended despite being from a different manufacturer?

A: The ESRH680M08B is obsolete, making the KEMET A700D686M010ATE015 the qualified alternative that meets all critical electrical and mechanical specifications. The substitute maintains active product status, ensuring supply chain continuity and technical support.

Q: Are there any compliance or certification concerns with substitution?

A: No. Both parts are ROHS3 compliant with identical MSL ratings (3, 168 Hours). The substitute part maintains full regulatory compliance for current manufacturing standards.

Q: What is the ripple current difference, and does it affect circuit design?

A: The substitute part supports 4.1 A ripple current at 100 kHz, compared to 2.5 A for the original part. This enhancement provides additional thermal margin in high-frequency switching applications but does not require circuit redesign when substituting into existing designs rated for 2.5 A or lower.