UPW1A181MED1TD Equivalent & Substitute Parts

Part Overview

The UPW1A181MED1TD is a 180 µF, 10 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part operates across a temperature range of -55°C to 105°C with a rated lifetime of 2000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and ripple current handling.

Key Parameters

Parameter	Value
Capacitance	180 µF
Tolerance	±20%
Voltage - Rated	10 V
Operating Temperature Range	-55°C ~ 105°C
Lifetime @ Temperature	2000 Hrs @ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package / Case	Radial, Can
Lead Spacing	0.098" (2.50mm)
Size / Dimension	0.248" Dia (6.30mm)
Height - Seated (Max)	0.492" (12.50mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UPW1A181MED1TD is determined by strict equivalence across the following parameters: capacitance value (180 µF), voltage rating (10 V), tolerance (±20%), polarization (polar), mounting type (through hole), package configuration (radial can), and physical dimensions including lead spacing (0.098" / 2.50mm), diameter (0.248" / 6.30mm), and maximum seated height (0.492" / 12.50mm).

The substitute parts are grouped as follows:

Direct Manufacturer Equivalent: UPJ1A181MED1TD (Nichicon) maintains identical electrical and mechanical specifications with the same lifetime rating of 2000 hours at 105°C, differing only in series designation and minor impedance characteristics.

Upgrade Substitute: 860160273012 (Würth Elektronik WCAP-ATLL series) provides enhanced reliability with 4000 hours lifetime at 105°C while maintaining all core electrical and mechanical parameters, with active product status.

Parametric Equivalent: 860080273006 (Würth Elektronik WCAP-ATLI series) matches all electrical specifications and physical dimensions with active product status and 2000 hours lifetime at 105°C.

Parameter Comparison

Parameter	UPW1A181MED1TD	UPJ1A181MED1TD	860160273012	860080273006
Manufacturer	Nichicon	Nichicon	Würth Elektronik	Würth Elektronik
Series	UPW	UPJ	WCAP-ATLL	WCAP-ATLI
Product Status	Obsolete	Obsolete	Active	Active
Capacitance	180 µF	180 µF	180 µF	180 µF
Tolerance	±20%	±20%	±20%	±20%
Voltage - Rated	10 V	10 V	10 V	10 V
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lifetime @ Temp.	2000 Hrs @ 105°C	2000 Hrs @ 105°C	4000 Hrs @ 105°C	2000 Hrs @ 105°C
Polarization	Polar	Polar	Polar	Polar
Lead Spacing	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)
Size / Dimension	0.248" Dia (6.30mm)	0.248" Dia (6.30mm)	0.248" Dia (6.30mm)	0.248" Dia (6.30mm)
Height - Seated (Max)	0.492" (12.50mm)	0.472" (12.00mm)	0.492" (12.50mm)	0.492" (12.50mm)
Mounting Type	Through Hole	Mounting Type	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Impedance	250 mOhms	460 mOhms	680 mOhms	220 mOhms
Ripple Current @ 120 Hz	188.5 mA	205 mA	184.44 mA	Not Specified
Ripple Current @ High Frequency	290 mA @ 100 kHz	290 mA @ 10 kHz	318 mA @ 100 kHz	350 mA @ 100 kHz

Engineering Selection Recommendations

All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for the UPW1A181MED1TD application.

For direct replacement in existing designs, UPJ1A181MED1TD provides functional equivalence as a Nichicon product with identical electrical specifications and lifetime rating. The minor height difference (0.472" versus 0.492") requires verification against PCB layout constraints.

For new designs or procurement requiring active product status, 860160273012 (Würth Elektronik WCAP-ATLL) is specified as an upgrade substitute, offering doubled lifetime (4000 hours at 105°C) while maintaining all core electrical and mechanical parameters. This part supports long-term supply chain continuity.

860080273006 (Würth Elektronik WCAP-ATLI) serves as a parametric equivalent with active product status and 2000 hours lifetime, providing an alternative source with enhanced ripple current capability (350 mA @ 100 kHz) and lower impedance (220 mOhms).

Frequently Asked Questions (FAQ)

Q: Can UPJ1A181MED1TD be used as a direct replacement for UPW1A181MED1TD?

A: Yes. Both parts share identical capacitance (180 µF), voltage rating (10 V), tolerance (±20%), operating temperature range (-55°C to 105°C), lifetime (2000 hours at 105°C), and physical dimensions including lead spacing (0.098" / 2.50mm) and diameter (0.248" / 6.30mm). The seated height of UPJ1A181MED1TD is 0.472" compared to 0.492" for the original part; verify clearance in your PCB layout.

Q: What is the advantage of 860160273012 over the original UPW1A181MED1TD?

A: The 860160273012 maintains all electrical and mechanical specifications while providing doubled lifetime (4000 hours at 105°C versus 2000 hours) and active product status, ensuring long-term availability and supply chain support.

Q: Are all substitute parts through-hole radial can packages?

A: Yes. All substitute parts are through-hole mounted radial can configurations with identical lead spacing (0.098" / 2.50mm) and diameter (0.248" / 6.30mm), ensuring PCB footprint compatibility.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original UPW1A181MED1TD.

Q: How do ripple current ratings differ among the substitutes?

A: Ripple current specifications vary by frequency and manufacturer design. At 100 kHz, 860160273012 provides 318 mA and 860080273006 provides 350 mA, compared to 290 mA for the original part. Verify ripple current requirements for your specific application frequency.

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