160USC680MEFC30X25 Equivalent & Substitute Parts

Part Overview

The Rubycon 160USC680MEFC30X25 is a 680 µF, 160 V aluminum electrolytic capacitor in radial, can snap-in package with 3000 hours lifetime at 85°C. This part is classified as Not For New Designs, indicating it has reached end-of-life status. Finding equivalent or substitute components is necessary for ongoing maintenance, repair, and legacy system support where direct replacement or upgraded alternatives are required.

Key Parameters

Parameter	Value
Capacitance	680 µF
Voltage Rating	160 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Size / Dimension	1.181" Dia (30.00 mm)
Height - Seated (Max)	1.063" (27.00 mm)
Mounting Type	Through Hole
Operating Temperature	-40°C ~ 85°C
Lifetime @ Temperature	3000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Direct Equivalents (identical electrical and mechanical specifications):

Capacitance: 680 µF (exact match required)
Voltage Rating: 160 V (exact match required)
Tolerance: ±20% (exact match required)
Package: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Physical Dimensions: 1.181" Dia × 1.063" Height max (exact match required)
Mounting: Through Hole (exact match required)

Upgrade Substitutes (higher voltage rating with same capacitance and package):

Capacitance: 680 µF (exact match required)
Voltage Rating: 200 V or 220 V (higher rating acceptable)
Tolerance: ±20% (exact match required)
Package: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Physical Dimensions: 1.181" Dia (exact match required)
Mounting: Through Hole (exact match required)

All substitute parts must maintain identical mechanical footprint and mounting compatibility to ensure direct board-level replacement without design modification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp	Lead Spacing	Size / Dimension	Height (Max)	Product Status	RoHS Status
160USC680MEFC30X25	Rubycon	USC	680 µF	160 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00 mm)	1.181" Dia (30.00 mm)	1.063" (27.00 mm)	Not For New Designs	ROHS3 Compliant
B43254C1687M	EPCOS - TDK Electronics	B43254	680 µF	160 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00 mm)	1.181" Dia (30.00 mm)	1.063" (27.00 mm)	Active	ROHS3 Compliant
LLS2C681MELB	Nichicon	LLS	680 µF	160 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00 mm)	1.181" Dia (30.00 mm)	0.984" (25.00 mm)	Active	ROHS3 Compliant
B43508C2687M	EPCOS - TDK Electronics	B43508	680 µF	200 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00 mm)	1.181" Dia (30.00 mm)	1.063" (27.00 mm)	Active	ROHS3 Compliant
B43508C2687M2	EPCOS - TDK Electronics	B43508	680 µF	200 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00 mm)	1.181" Dia (30.00 mm)	1.063" (27.00 mm)	Active	ROHS3 Compliant
B43508C2687M60	EPCOS - TDK Electronics	B43508	680 µF	200 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00 mm)	1.181" Dia (30.00 mm)	1.063" (27.00 mm)	Active	ROHS3 Compliant
B43508C2687M62	EPCOS - TDK Electronics	B43508	680 µF	200 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00 mm)	1.181" Dia (30.00 mm)	1.063" (27.00 mm)	Active	ROHS3 Compliant
B43508C2687M67	EPCOS - TDK Electronics	B43508	680 µF	200 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00 mm)	1.181" Dia (30.00 mm)	1.063" (27.00 mm)	Active	ROHS3 Compliant
B43508C2687M7	EPCOS - TDK Electronics	B43508	680 µF	200 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00 mm)	1.181" Dia (30.00 mm)	1.063" (27.00 mm)	Active	ROHS3 Compliant
220MXG680MEFCSN30X25	Rubycon	MXG	680 µF	220 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.394" (10.00 mm)	1.181" Dia (30.00 mm)	1.063" (27.00 mm)	Active	ROHS3 Compliant
220USG680MEFC30X25	Rubycon	USG	680 µF	220 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.394" (10.00 mm)	1.181" Dia (30.00 mm)	1.063" (27.00 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Same Electrical & Mechanical Specifications):

B43254C1687M (EPCOS - TDK Electronics) is the primary direct equivalent. It maintains 680 µF capacitance, 160 V voltage rating, ±20% tolerance, and identical mechanical footprint. The part is Active status with ROHS3 compliance. The operating temperature range extends to 105°C with 3000 hours lifetime at that temperature, providing improved thermal performance over the original part.

LLS2C681MELB (Nichicon) is a direct electrical equivalent with identical capacitance, voltage, tolerance, and lead spacing. Physical height is reduced to 0.984" (25.00 mm) versus the original 1.063" (27.00 mm), which may be advantageous in space-constrained applications. Active status with ROHS3 compliance.

Upgrade Substitutes (Higher Voltage Rating):

B43508 series variants (EPCOS - TDK Electronics) provide 200 V rating with identical 680 µF capacitance and mechanical footprint. All variants (B43508C2687M, B43508C2687M2, B43508C2687M60, B43508C2687M62, B43508C2687M67, B43508C2687M7) are Active status with ROHS3 compliance and 3000 hours lifetime at 105°C. Higher voltage rating provides design margin in applications where voltage stress is a concern.

220MXG680MEFCSN30X25 (Rubycon) offers 220 V rating with identical capacitance and footprint. Active status with ROHS3 compliance and 3000 hours lifetime at 105°C.

220USG680MEFC30X25 (Rubycon) provides 220 V rating with identical capacitance and footprint. Active status with ROHS3 compliance and 3000 hours lifetime at 85°C.

All substitute parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for new and legacy applications.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage rated capacitor as a direct replacement?

A: Yes. A capacitor rated for 200 V or 220 V can replace a 160 V rated capacitor in the same application, provided all other parameters match: capacitance (680 µF), tolerance (±20%), package type (Radial, Can - Snap-In), lead spacing (0.394" / 10.00 mm), and physical dimensions (1.181" Dia). Higher voltage rating does not affect circuit operation and provides additional design margin.

Q: What is the difference between the B43508 variants?

A: All B43508 variants listed (B43508C2687M, B43508C2687M2, B43508C2687M60, B43508C2687M62, B43508C2687M67, B43508C2687M7) share identical electrical specifications: 680 µF, 200 V, ±20% tolerance, 170 mOhm ESR @ 100 Hz, and mechanical dimensions. The suffix designations indicate manufacturing date codes or internal tracking. They are electrically and mechanically interchangeable.

Q: Why is the LLS2C681MELB height different?

A: The LLS2C681MELB has a maximum seated height of 0.984" (25.00 mm) compared to the original 1.063" (27.00 mm). This reduced height may be beneficial in applications with vertical space constraints. All other parameters—capacitance, voltage, tolerance, lead spacing, and diameter—remain identical, ensuring mechanical compatibility on the PCB footprint.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for electronic component use in regulated markets.

Q: What is the difference between Rubycon USC, USG, and MXG series?

A: The original part is Rubycon USC series (160 V, 3000 Hrs @ 85°C). The USG series upgrade maintains 220 V rating with 3000 Hrs @ 85°C. The MXG series upgrade provides 220 V rating with extended 3000 Hrs @ 105°C thermal performance. All three series maintain identical mechanical footprint and snap-in package configuration.

Q: Can I substitute the original 160USC680MEFC30X25 with any of these parts?

A: Yes. B43254C1687M and LLS2C681MELB are direct electrical equivalents. B43508 series, 220MXG680MEFCSN30X25, and 220USG680MEFC30X25 are upgrade substitutes with higher voltage ratings. All maintain identical mechanical footprint and mounting compatibility for direct board-level replacement.

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