UVR1C682MHD Equivalent & Substitute Parts

Part Overview

The UVR1C682MHD is a 6800 µF, 16 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Equivalent and substitute parts are necessary for legacy system maintenance, repair applications, and designs requiring compatible alternatives with matching or superior electrical characteristics.

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
Lead Spacing	0.295" (7.50mm)
Package Type	Radial, Can
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Requirements:

Capacitance: 6800 µF (exact match required)
Voltage Rating: 16 V minimum (equal or higher acceptable)
Tolerance: ±20% (matching or tighter tolerance acceptable)
Lifetime: 2000 Hrs @ 85°C minimum
Operating Temperature: -40°C ~ 85°C (matching or wider range acceptable)
Polarization: Polar (required)
Lead Spacing: 0.295" (7.50mm) (exact match required for PCB compatibility)
Package: Radial, Can (exact match required)
Mounting: Through Hole (exact match required)

Substitution Categories:

Upgrade Parts (Nichicon series UFW and UKW): Direct pin-compatible replacements with identical physical dimensions and electrical ratings. These parts share the same lead spacing, case diameter, and height specifications as the UVR1C682MHD, with equivalent or superior ripple current handling.

Similar Parts (Nichicon URS and UVK series, Panasonic ECA-1CM682, Cornell Dubilier SK682M016ST): Parts meeting all primary compatibility requirements with minor dimensional variations in case diameter or height. These maintain electrical equivalence while offering alternative form factors.

Direct Equivalents (Cornell Dubilier 688CKS016MKAG, Chemi-Con ESMG160ELL682MLN3S): Parts from alternative manufacturers meeting identical specifications with full electrical and mechanical compatibility.

Upgrade with Voltage Margin (Rubycon 25PK6800MEFC16X31.5): Higher voltage rating (25 V vs. 16 V) providing additional safety margin in applications where voltage headroom is beneficial.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ 85°C	Lead Spacing	Case Diameter	Height (Max)	Product Status	RoHS
UVR1C682MHD	Nichicon	UVR	6800 µF	16 V	±20%	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.398" (35.50mm)	Not For New Designs	ROHS3
UFW1C682MHD	Nichicon	UFW	6800 µF	16 V	±20%	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.398" (35.50mm)	Not For New Designs	ROHS3
UKW1C682MHD	Nichicon	UKW	6800 µF	16 V	±20%	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.398" (35.50mm)	Not For New Designs	ROHS3
URS1C682MHD	Nichicon	URS	6800 µF	16 V	±20%	2000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.043" (26.50mm)	Active	ROHS3
UVK1C682MHD	Nichicon	UVK	6800 µF	16 V	±20%	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.063" (27.00mm)	Not For New Designs	ROHS3
688CKS016MKAG	Cornell Dubilier / Illinois Capacitor	CKS	6800 µF	16 V	±20%	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.240" (31.50mm)	Active	ROHS3
ESMG160ELL682MLN3S	Chemi-Con	SMG	6800 µF	16 V	±20%	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.299" (33.00mm)	Active	ROHS3
25PK6800MEFC16X31.5	Rubycon	PK	6800 µF	25 V	±20%	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.299" (33.00mm)	Active	ROHS3
ECA-1CM682	Panasonic Electronic Components	M-A	6800 µF	16 V	±20%	2000 Hrs	0.295" (7.50mm)	0.630" (16.00mm)	1.319" (34.60mm)	Active	ROHS3
SK682M016ST	Cornell Dubilier Electronics (CDE)	SK	6800 µF	16 V	±20%	2000 Hrs	0.295" (7.50mm)	0.709" (18.00mm)	1.457" (37.00mm)	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Identical Form Factor): UFW1C682MHD and UKW1C682MHD are pin-compatible upgrades from Nichicon with identical case dimensions (0.630" diameter, 1.398" height) and lead spacing. Both maintain Active product status in their respective series, ensuring long-term availability.

For Active Product Status Priority: ESMG160ELL682MLN3S (Chemi-Con), 688CKS016MKAG (Cornell Dubilier), ECA-1CM682 (Panasonic), and 25PK6800MEFC16X31.5 (Rubycon) are all classified as Active products, providing assurance of continued manufacturing and supply chain stability.

For Compact Form Factor: URS1C682MHD offers reduced height (1.043" vs. 1.398") while maintaining identical lead spacing and case diameter compatibility, suitable for space-constrained applications.

For Voltage Margin Enhancement: 25PK6800MEFC16X31.5 provides 25 V rating versus the original 16 V specification, offering additional safety margin in circuits subject to voltage transients or overshoot conditions.

For Alternative Manufacturer Sourcing: 688CKS016MKAG (Cornell Dubilier) and ESMG160ELL682MLN3S (Chemi-Con) provide supply diversification from established manufacturers with ROHS3 compliance and equivalent electrical performance.

All substitute parts listed maintain ROHS3 compliance and -40°C ~ 85°C operating temperature range, meeting environmental and regulatory requirements equivalent to the original UVR1C682MHD specification.

Frequently Asked Questions (FAQ)

Q: Can UFW1C682MHD and UKW1C682MHD be used interchangeably with UVR1C682MHD? A: Yes. Both parts share identical electrical specifications (6800 µF, 16 V, ±20% tolerance, 2000 Hrs @ 85°C) and physical dimensions (0.295" lead spacing, 0.630" case diameter, 1.398" height). They are direct pin-compatible replacements suitable for PCB retrofit applications.

Q: What is the difference between parts with 16 V and 25 V ratings? A: The 25PK6800MEFC16X31.5 (25 V) can be used in circuits designed for 16 V operation, providing additional voltage headroom. However, the reverse substitution (16 V part in a 25 V circuit) is not acceptable. Voltage rating selection depends on the actual circuit operating voltage and transient margin requirements.

Q: Are there dimensional constraints when selecting substitute parts? A: Lead spacing (0.295" / 7.50mm) must remain constant for PCB compatibility. Case diameter and height vary among substitutes. URS1C682MHD and SK682M016ST have larger diameters (0.709" vs. 0.630") and different heights, requiring verification of available board space before selection.

Q: Which substitute parts have the longest product lifecycle status? A: ESMG160ELL682MLN3S (Chemi-Con), 688CKS016MKAG (Cornell Dubilier), ECA-1CM682 (Panasonic), and 25PK6800MEFC16X31.5 (Rubycon) are all classified as Active products, indicating current manufacturing and continued availability. Nichicon UFW1C682MHD, UKW1C682MHD, URS1C682MHD, and UVK1C682MHD are Not For New Designs or Active status varies by series.

Q: Do all substitute parts meet RoHS compliance? A: Yes. All listed substitute parts are ROHS3 compliant, matching the environmental certification of the original UVR1C682MHD.

Q: What ripple current specifications should be considered when selecting substitutes? A: Ripple current ratings vary among substitutes. The original UVR1C682MHD specifies 2.65 A @ 120 Hz and 3.0475 A @ 10 kHz. Substitute parts with equal or higher ripple current ratings are suitable for equivalent thermal performance. Verify ripple current specifications against circuit design requirements before final selection.

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