UVR1C682MHA Equivalent & Substitute Parts

Part Overview

The UVR1C682MHA is a 6800 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing maintenance, repair, and legacy system support. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 2000 hours at 85°C, serving general-purpose applications requiring stable capacitance and ripple current handling.

Key Parameters

Parameter	Value
Capacitance	6800 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.295" (7.50mm)
Case Diameter	0.630" (16.00mm)
Height (Seated Max)	1.398" (35.50mm)

Substitute Part Grouping Explanation

Substitution for the UVR1C682MHA is determined by strict equivalence across the following parameters: capacitance value (6800 µF), voltage rating (16 V), tolerance (±20%), polarization (polar), package type (radial, can), mounting type (through hole), and lead spacing (0.295" / 7.50mm). Physical dimensions including case diameter and height must remain compatible with the original PCB layout. Lifetime rating (2000 Hrs @ 85°C) and operating temperature range (-40°C ~ 85°C) establish the thermal and reliability baseline. Ripple current specifications and ESR values are secondary parameters that may vary within acceptable limits for the application category.

Substitute parts are grouped into three categories: direct equivalents from the same manufacturer (Nichicon UVR series variants), upgrade alternatives from the same manufacturer (Nichicon UFW and UKW series), and cross-manufacturer equivalents (Cornell Dubilier, Panasonic, and CDE) that meet all primary electrical and mechanical parameters.

Parameter Comparison

Parameter	UVR1C682MHA	UVR1C682MHD	UFW1C682MHD	UKW1C682MHD	688CKS016MKAG	ECA-1CM682	SK682M016ST
Manufacturer	Nichicon	Nichicon	Nichicon	Nichicon	Cornell Dubilier / Illinois Capacitor	Panasonic	Cornell Dubilier Electronics
Capacitance	6800 µF	6800 µF	6800 µF	6800 µF	6800 µF	6800 µF	6800 µF
Voltage Rating	16 V	16 V	16 V	16 V	16 V	16 V	16 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%	±20%
Lifetime @ 85°C	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Polarization	Polar	Polar	Polar	Polar	Polar	Polar	Polar
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Lead Spacing	0.295" (7.50mm)	0.295" (7.50mm)	0.295" (7.50mm)	0.295" (7.50mm)	0.295" (7.50mm)	0.295" (7.50mm)	0.295" (7.50mm)
Case Diameter	0.630" (16.00mm)	0.630" (16.00mm)	0.630" (16.00mm)	0.630" (16.00mm)	0.630" (16.00mm)	0.630" (16.00mm)	0.709" (18.00mm)
Height (Seated Max)	1.398" (35.50mm)	1.398" (35.50mm)	1.398" (35.50mm)	1.398" (35.50mm)	1.240" (31.50mm)	1.319" (34.60mm)	1.457" (37.00mm)
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Not For New Designs	Not For New Designs	Not For New Designs	Active	Active	Active

Engineering Selection Recommendations

For direct replacement in existing designs, UVR1C682MHD provides the closest match as a Nichicon UVR series variant with identical electrical specifications and mechanical dimensions. This part is classified as "Not For New Designs" but remains suitable for legacy system maintenance.

UFW1C682MHD and UKW1C682MHD are Nichicon upgrade alternatives with identical capacitance, voltage, and tolerance specifications. These parts feature lower ripple current ratings (2.5 A @ 120 Hz and 2.875 A @ 10 kHz compared to 2.65 A and 3.0475 A in the original) and are designated for audio applications. Both are ROHS3 compliant and suitable for legacy support.

688CKS016MKAG from Cornell Dubilier / Illinois Capacitor is an active product with higher ripple current capability (3.01 A @ 120 Hz, 4.214 A @ 100 kHz) and lower ESR (68 mOhm @ 120 Hz). Height is reduced to 1.240" (31.50mm), which may provide space advantages in constrained layouts. ROHS3 compliant and actively manufactured.

ECA-1CM682 from Panasonic is an active product with identical mechanical dimensions except height (1.319" / 34.60mm). Ripple current specifications are lower (1.6 A @ 120 Hz, 2.72 A @ 10 kHz). ROHS3 compliant with high inventory availability.

SK682M016ST from Cornell Dubilier Electronics is an active product with increased case diameter (0.709" / 18.00mm) and height (1.457" / 37.00mm). ESR is specified at 70 mOhm. This part requires verification of PCB layout compatibility due to dimensional differences. ROHS3 compliant.

All substitute parts maintain REACH compliance and EAR99 export classification. Selection should prioritize active products (688CKS016MKAG, ECA-1CM682, SK682M016ST) for new procurement when possible, while Nichicon variants remain available for direct legacy replacement.

Frequently Asked Questions (FAQ)

Q: Can UVR1C682MHD be used as a direct replacement for UVR1C682MHA?

A: Yes. UVR1C682MHD is a direct equivalent with identical capacitance (6800 µF), voltage rating (16 V), tolerance (±20%), lifetime (2000 Hrs @ 85°C), operating temperature range (-40°C ~ 85°C), and mechanical dimensions. Both are Nichicon UVR series parts with the same lead spacing (0.295" / 7.50mm), case diameter (0.630" / 16.00mm), and height (1.398" / 35.50mm). The primary difference is RoHS compliance status: UVR1C682MHD is ROHS3 compliant while the original is non-compliant.

Q: What are the key differences between Nichicon UFW1C682MHD and UKW1C682MHD compared to the original UVR1C682MHA?

A: UFW1C682MHD and UKW1C682MHD maintain identical electrical specifications (6800 µF, 16 V, ±20%, 2000 Hrs @ 85°C) and mechanical dimensions. Both are designated for audio applications rather than general purpose. Ripple current ratings are lower: 2.5 A @ 120 Hz and 2.875 A @ 10 kHz versus 2.65 A and 3.0475 A in the original. Both are ROHS3 compliant. These parts are suitable for applications where lower ripple current is acceptable.

Q: How does 688CKS016MKAG differ mechanically from the original part?

A: 688CKS016MKAG maintains the same lead spacing (0.295" / 7.50mm) and case diameter (0.630" / 16.00mm) as the original. The seated height is reduced to 1.240" (31.50mm) compared to 1.398" (35.50mm) in UVR1C682MHA. This 0.158" (4.60mm) reduction may provide space advantages in compact layouts. All other electrical parameters remain equivalent.

Q: Why does SK682M016ST have different physical dimensions?

A: SK682M016ST from Cornell Dubilier Electronics has a larger case diameter (0.709" / 18.00mm versus 0.630" / 16.00mm) and greater height (1.457" / 37.00mm versus 1.398" / 35.50mm). Lead spacing remains at 0.295" (7.50mm). These dimensional differences require verification of PCB layout compatibility before substitution. The part is electrically equivalent in capacitance, voltage, and tolerance.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed are ROHS3 compliant. The original UVR1C682MHA is RoHS non-compliant. This compliance difference is significant for applications subject to RoHS regulations or procurement requirements.

Q: Which substitute part is recommended for new procurement?

A: 688CKS016MKAG, ECA-1CM682, and SK682M016ST are all active products currently manufactured. 688CKS016MKAG offers the highest ripple current capability and lowest ESR. ECA-1CM682 provides the highest inventory availability. Selection depends on specific application requirements for ripple current, ESR, and physical space constraints.

Q: Can ripple current differences affect part selection?

A: Yes. The original UVR1C682MHA specifies 2.65 A @ 120 Hz and 3.0475 A @ 10 kHz. Substitute parts vary: UFW1C682MHD and UKW1C682MHD are lower at 2.5 A and 2.875 A; 688CKS016MKAG is higher at 3.01 A and 4.214 A; ECA-1CM682 is lower at 1.6 A and 2.72 A; SK682M016ST specifications are not fully provided. Applications with high ripple current demands should select 688CKS016MKAG. Applications with lower ripple requirements can use any substitute.

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