860020478021 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 860020478021 is a 1800 µF, 25 V aluminum electrolytic capacitor in radial, can package format. This component is rated for 2000 hours at 105°C and is designed for general purpose applications. The part is currently active in production with ROHS3 compliance and is available in cut tape packaging. Equivalent and substitute parts are identified to provide design flexibility, extended operational lifetimes, enhanced temperature performance, or higher voltage ratings while maintaining core electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	1800 µF
Voltage - Rated	25 V
Tolerance	±20%
Polarization	Polar
Package / Case	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.197" (5.00 mm)
Operating Temperature Range	-40°C ~ 105°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Capacitance: Must be 1800 µF (no tolerance variation)
Voltage Rating: Minimum 25 V (higher ratings are acceptable for backward compatibility)
Tolerance: ±20% (as specified)
Polarization: Polar (required)
Package / Case: Radial, Can (mechanical compatibility)
Mounting Type: Through Hole (required)
Lead Spacing: 0.197" (5.00 mm) (required for PCB compatibility)
RoHS Status: ROHS3 Compliant (regulatory requirement)

All substitute parts listed meet these core criteria. Variations in lifetime ratings, ripple current specifications, impedance, and operating temperature ranges represent performance enhancements or application-specific optimizations but do not affect basic substitutability.

Parameter Comparison

Parameter	860020478021 (Würth)	UPA1E182MHD1TO (Nichicon)	EEU-FR1E182B (Panasonic)	EEU-TP1E182B (Panasonic)	UBY1V182MHL1TO (Nichicon)
Manufacturer	Würth Elektronik	Nichicon	Panasonic Electronic Components	Panasonic Electronic Components	Nichicon
Series	WCAP-ATG5	UPA	FR-A	TP-A	UBY
Capacitance	1800 µF	1800 µF	1800 µF	1800 µF	1800 µF
Voltage - Rated	25 V	25 V	25 V	25 V	35 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ Temp.	2000 Hrs @ 105°C	5000 Hrs @ 105°C	10000 Hrs @ 105°C	4000 Hrs @ 125°C	3000 Hrs @ 135°C
Operating Temperature	-40°C ~ 105°C	-55°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 135°C	-40°C ~ 135°C
Ripple Current @ 120 Hz	1.05 A	2.499 A	2.552 A	1.744 A	2.088 A
Ripple Current @ 100 kHz	1.344 A	2.28 A	3.19 A	1.75 A	3.48 A
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Size / Dimension	0.512" Dia (13.00 mm)	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)	1.043" (26.50 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.063" (27.00 mm)	1.043" (26.50 mm)
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

UPA1E182MHD1TO (Nichicon): Direct equivalent with extended lifetime (5000 hours at 105°C versus 2000 hours). Supports expanded operating temperature range (-55°C to 105°C). Higher ripple current ratings at both low and high frequencies. ROHS3 compliant. Suitable for applications requiring improved thermal performance and extended service life within the same voltage class.

EEU-FR1E182B (Panasonic): Premium upgrade option with maximum lifetime rating (10000 hours at 105°C). Highest ripple current capacity at high frequency (3.19 A @ 100 kHz). Lowest impedance specification (15 mOhms). ROHS3 compliant with REACH unaffected status. Recommended for demanding general purpose applications with extended operational requirements.

EEU-TP1E182B (Panasonic): Automotive-grade substitute with AEC-Q200 certification. Extended operating temperature range (-40°C to 135°C) with 4000-hour lifetime at 125°C. Suitable for automotive and high-temperature applications. ROHS3 compliant. MSL rating of 1 (Unlimited) indicates enhanced moisture resistance.

UBY1V182MHL1TO (Nichicon): Higher voltage rating (35 V versus 25 V) provides overvoltage margin. Extended operating temperature range (-40°C to 135°C) with 3000-hour lifetime at 135°C. Highest ripple current at 100 kHz (3.48 A). Suitable for automotive applications and circuits requiring voltage headroom. ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher voltage rating than the original 860020478021?

A: Yes. The UBY1V182MHL1TO (35 V rating) is electrically compatible. Higher voltage ratings provide additional safety margin and do not degrade circuit performance. Verify that PCB layout and mechanical clearances accommodate the substitute part's dimensions.

Q: What is the primary difference between the Panasonic FR-A and TP-A series substitutes?

A: The EEU-FR1E182B (FR-A) is optimized for general purpose applications with maximum lifetime at 105°C (10000 hours). The EEU-TP1E182B (TP-A) is automotive-grade with AEC-Q200 certification and extended temperature operation to 135°C. Select based on application requirements and environmental conditions.

Q: Are all substitute parts mechanically compatible with the original 860020478021?

A: All substitute parts share the same lead spacing (0.197" / 5.00 mm) and through-hole mounting type. However, the original part has a larger diameter (0.512" / 13.00 mm) compared to substitute parts (0.492" / 12.50 mm). Verify PCB footprint clearances before substitution. Height variations are minimal (26.50 mm to 27.00 mm) and typically do not affect assembly.

Q: Which substitute offers the best ripple current performance?

A: The EEU-FR1E182B provides the highest ripple current at high frequency (3.19 A @ 100 kHz). The UBY1V182MHL1TO offers the highest ripple current at 100 kHz (3.48 A) but at a higher voltage rating (35 V). Select based on circuit ripple current requirements and voltage specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant. The original 860020478021 and all substitutes meet this regulatory requirement.

Q: What is the temperature performance advantage of the EEU-TP1E182B?

A: The EEU-TP1E182B operates to 135°C with a 4000-hour lifetime at that temperature, compared to the original part's 2000-hour lifetime at 105°C. This makes it suitable for high-temperature automotive and industrial applications.

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