UPJ1K680MHD6TO Equivalent & Substitute Parts

Part Overview

The UPJ1K680MHD6TO is a 68 µF, 80 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as not for new designs, indicating its legacy status in the product portfolio. Finding equivalent and substitute parts is necessary for applications requiring continued support, inventory replenishment, or design flexibility where higher voltage ratings or improved performance characteristics are beneficial.

Key Parameters

Parameter	Value
Capacitance	68 µF
Voltage Rating	80 V
Tolerance	±20%
Lifetime @ Temperature	5000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Lead Spacing	0.197" (5.00 mm)
Package Type	Radial, Can
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution for the UPJ1K680MHD6TO is determined by the following criteria:

Capacitance: Must be 68 µF (exact match required)
Voltage Rating: Minimum 80 V; higher ratings (100 V) are acceptable as they provide increased safety margin
Tolerance: ±20% (standard for aluminum electrolytic capacitors)
Package Dimensions: Lead spacing 0.197" (5.00 mm), radial can configuration
Mounting Type: Through hole only
Operating Temperature: -55°C ~ 105°C range
Lifetime: 5000 Hrs @ 105°C minimum

Three substitute parts meet these criteria: UPJ2A680MHD6TO (Nichicon, 100 V), UPM2A680MHD6TO (Nichicon, 100 V, automotive-rated), and EEU-FC2A680B (Panasonic, 100 V, automotive-rated).

Parameter Comparison

Parameter	UPJ1K680MHD6TO	UPJ2A680MHD6TO	UPM2A680MHD6TO	EEU-FC2A680B
Manufacturer	Nichicon	Nichicon	Nichicon	Panasonic
Capacitance	68 µF	68 µF	68 µF	68 µF
Voltage Rating	80 V	100 V	100 V	100 V
Tolerance	±20%	±20%	±20%	±20%
Lifetime @ 105°C	5000 Hrs	5000 Hrs	5000 Hrs	5000 Hrs
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Size / Dimension	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)	0.492" Dia (12.50 mm)
Height - Seated (Max)	0.650" (16.50 mm)	0.650" (16.50 mm)	0.669" (17.00 mm)	0.630" (16.00 mm)
Ripple Current @ 120 Hz	249 mA	289 mA	380 mA	332.2 mA
Ripple Current @ High Frequency	402 mA @ 10 kHz	466 mA @ 10 kHz	605 mA @ 10 kHz	511 mA @ 100 kHz
Impedance	310 mOhms	230 mOhms	230 mOhms	230 mOhms
Product Status	Not For New Designs	Not For New Designs	Not For New Designs	Active
Ratings	—	—	AEC-Q200	AEC-Q200
Applications	General Purpose	General Purpose	Automotive	Automotive
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Cut Tape (CT)	Cut Tape (CT)	Cut Tape (CT)	Tape & Box (TB)

Engineering Selection Recommendations

UPJ2A680MHD6TO provides a direct upgrade within the Nichicon UPJ series with identical physical dimensions and improved electrical performance through higher voltage rating (100 V) and lower impedance (230 mOhms vs. 310 mOhms). However, this part shares the same legacy status as the original component.

UPM2A680MHD6TO offers automotive-grade qualification (AEC-Q200) with enhanced ripple current handling (380 mA @ 120 Hz, 605 mA @ 10 kHz) and maintains mechanical compatibility. Height increases by 0.019" (0.50 mm) to 0.669" (17.00 mm), which must be verified against PCB layout constraints. This part is suitable for applications requiring automotive-grade reliability.

EEU-FC2A680B is the only active product among the substitutes, manufactured by Panasonic with AEC-Q200 automotive qualification. It provides the lowest seated height at 0.630" (16.00 mm) and maintains all electrical compatibility. This option is recommended for new inventory procurement and applications requiring active product support.

All three substitutes are ROHS3 compliant and operate within the same temperature range as the original part.

Frequently Asked Questions (FAQ)

Q: Can UPJ2A680MHD6TO be used as a direct replacement for UPJ1K680MHD6TO?

A: Yes. Both parts share identical capacitance (68 µF), tolerance (±20%), lead spacing (5.00 mm), and physical dimensions. The 100 V rating of UPJ2A680MHD6TO exceeds the 80 V requirement, providing increased voltage margin. Lower impedance (230 mOhms vs. 310 mOhms) improves performance characteristics.

Q: What is the difference between UPM2A680MHD6TO and UPJ2A680MHD6TO?

A: Both are 68 µF, 100 V Nichicon capacitors with identical electrical specifications. UPM2A680MHD6TO carries AEC-Q200 automotive qualification and higher ripple current ratings (380 mA @ 120 Hz vs. 289 mA). The seated height is 0.669" (17.00 mm) compared to 0.650" (16.50 mm) for UPJ2A680MHD6TO. UPM2A680MHD6TO is designated for automotive applications.

Q: Why is EEU-FC2A680B recommended over Nichicon alternatives?

A: EEU-FC2A680B is the only active product in the substitute group, ensuring continued availability and manufacturer support. It maintains full electrical and mechanical compatibility while offering AEC-Q200 automotive qualification and the lowest seated height (0.630" / 16.00 mm), which may provide PCB layout advantages.

Q: Are there height differences that affect PCB compatibility?

A: Yes. UPJ1K680MHD6TO and UPJ2A680MHD6TO are 0.650" (16.50 mm). UPM2A680MHD6TO is 0.669" (17.00 mm), and EEU-FC2A680B is 0.630" (16.00 mm). Verify clearance requirements for components or enclosures before substitution.

Q: Do all substitutes meet the same compliance standards?

A: All four parts are ROHS3 compliant and operate within -55°C ~ 105°C. UPM2A680MHD6TO and EEU-FC2A680B carry AEC-Q200 automotive qualification. The original UPJ1K680MHD6TO and UPJ2A680MHD6TO do not have automotive ratings.

Q: What packaging formats are available?

A: UPJ1K680MHD6TO, UPJ2A680MHD6TO, and UPM2A680MHD6TO are supplied in Cut Tape (CT) packaging. EEU-FC2A680B is supplied in Tape & Box (TB) packaging. Verify packaging requirements for your procurement and assembly processes.

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