688SAK010M Equivalent & Substitute Parts Reference

Part Overview

The 688SAK010M is a 6800 µF, 10 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the SAK series. This radial, through-hole component is designed for general-purpose applications requiring stable capacitance and extended operational life. The part maintains active product status with 1087 units in current inventory. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design standardization across manufacturing environments.

Key Parameters

Parameter	Specification
Capacitance	6800 µF
Voltage Rating	10 V
Tolerance	±20%
Operating Temperature Range	-40°C to 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.295" (7.50 mm)
Physical Diameter	0.709" (18.00 mm)
Height (Seated Max)	0.846" (21.50 mm)
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 688SAK010M is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 6800 µF (exact match required)
Voltage Rating: 10 V (exact match required)
Tolerance: ±20% (exact match required)
Operating Temperature Range: -40°C to 85°C (exact match required)
Lifetime @ Temperature: 2000 Hrs @ 85°C (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.295" (7.50 mm) (exact match required)
Physical Diameter: 0.709" (18.00 mm) (exact match required)
Height (Seated Max): 0.846" (21.50 mm) (exact match required)
Polarization: Polar (exact match required)

Compliance Parameters:

RoHS Status: ROHS3 Compliant (required for regulatory alignment)
REACH Status: REACH Unaffected (required for regulatory alignment)

The substitute part URS1A682MHD manufactured by Nichicon meets all mandatory matching parameters and compliance requirements, establishing it as a direct parametric equivalent.

Parameter Comparison

Parameter	688SAK010M (Cornell Dubilier)	URS1A682MHD (Nichicon)
Capacitance	6800 µF	6800 µF
Voltage Rating	10 V	10 V
Tolerance	±20%	±20%
Operating Temperature Range	-40°C to 85°C	-40°C to 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C	2000 Hrs @ 85°C
Ripple Current @ 120 Hz	1.83 A	1.85 A
Ripple Current @ 10 kHz	2.1045 A	2.1275 A
Lead Spacing	0.295" (7.50 mm)	0.295" (7.50 mm)
Physical Diameter	0.709" (18.00 mm)	0.709" (18.00 mm)
Height (Seated Max)	0.846" (21.50 mm)	0.846" (21.50 mm)
Mounting Type	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can
Polarization	Polar	Polar
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Active	Active

Engineering Selection Recommendations

The URS1A682MHD from Nichicon qualifies as a direct parametric equivalent to the 688SAK010M based on complete alignment of electrical specifications, mechanical dimensions, and regulatory compliance status. Both components are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity in manufacturing environments subject to these standards.

Selection between the 688SAK010M and URS1A682MHD should be based on:

Inventory availability: 688SAK010M has 1087 units in stock; URS1A682MHD has 781 units in stock
Supply chain requirements: Either part supports equivalent procurement pathways
Existing design documentation: Use the part already specified in active designs unless supply constraints require substitution
Manufacturer preference: Both manufacturers maintain active product lines with equivalent performance characteristics

No additional testing or qualification is required when substituting between these parts within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can the URS1A682MHD replace the 688SAK010M in existing designs?

A: Yes. The URS1A682MHD is a direct parametric equivalent. All electrical specifications, mechanical dimensions, lead spacing, and compliance certifications match the 688SAK010M exactly. No circuit redesign or PCB layout modification is required.

Q: Are there differences in ESR (Equivalent Series Resistance) between these parts?

A: The 688SAK010M specifies 90 mOhm @ 120 Hz. The URS1A682MHD does not provide ESR specification in the available data. If ESR is a critical design parameter, the 688SAK010M should be used or ESR data for the URS1A682MHD should be obtained from the manufacturer.

Q: Do both parts have identical ripple current ratings?

A: Ripple current ratings are nearly identical. At 120 Hz, the 688SAK010M carries 1.83 A versus 1.85 A for the URS1A682MHD. At 10 kHz, the 688SAK010M carries 2.1045 A versus 2.1275 A for the URS1A682MHD. These differences are within normal manufacturing tolerance and do not affect circuit performance.

Q: What is the lead spacing for both parts?

A: Both the 688SAK010M and URS1A682MHD have identical lead spacing of 0.295" (7.50 mm), ensuring direct PCB footprint compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the 688SAK010M and URS1A682MHD are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing.

Q: What is the maximum operating temperature for these capacitors?

A: Both parts operate across the temperature range of -40°C to 85°C with a rated lifetime of 2000 hours at 85°C.

Q: Can these parts be used interchangeably in high-frequency applications?

A: Yes. Both parts support ripple current operation at high frequency (10 kHz), with specifications within 1.5% of each other, confirming interchangeability in high-frequency circuit applications.

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