Würth Elektronik 860010478018 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 860010478018 is a 1200 µF, 25 V aluminum electrolytic capacitor in radial configuration with a rated lifetime of 2000 hours at 85°C. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter ranges, or when upgraded performance characteristics provide enhanced reliability for the same application requirements.

Key Parameters

Parameter	Value
Capacitance	1200 µF
Voltage Rating	25 V
Tolerance	±20%
Operating Temperature Range	-40°C ~ 85°C
Lifetime @ Temperature	2000 Hrs @ 85°C
Lead Spacing	0.197" (5.00 mm)
Package Type	Radial, Can
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 860010478018 are categorized based on the following substitution criteria:

Direct Equivalents (Same Voltage Rating - 25 V):

Capacitance: 1200 µF (exact match)
Voltage Rating: 25 V (exact match)
Tolerance: ±20% (exact match)
Lead Spacing: 0.197" (5.00 mm) (exact match)
Package Type: Radial, Can (exact match)
Mounting Type: Through Hole (exact match)

Parts meeting these criteria: 860020478019, 860160478029, EEU-TP1E122B

Upgraded Voltage Rating (35 V):

Capacitance: 1200 µF (exact match)
Voltage Rating: 35 V (higher rating)
Tolerance: ±20% (exact match)
Lead Spacing: 0.197" (5.00 mm) (exact match)
Package Type: Radial, Can (exact match)
Mounting Type: Through Hole (exact match)

Parts meeting these criteria: 860010578018, 860020578019

Upgraded voltage rating parts provide enhanced voltage margin and are suitable for applications where the original 25 V specification can accommodate higher-rated components without design modification.

Parameter Comparison

Parameter	860010478018	860020478019	860010578018	860020578019	860160478029	EEU-TP1E122B
Manufacturer	Würth Elektronik	Würth Elektronik	Würth Elektronik	Würth Elektronik	Würth Elektronik	Panasonic Electronic Components
Capacitance	1200 µF	1200 µF	1200 µF	1200 µF	1200 µF	1200 µF
Voltage Rating	25 V	25 V	35 V	35 V	25 V	25 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 105°C	-40°C ~ 85°C	-40°C ~ 105°C	-55°C ~ 105°C	-40°C ~ 135°C
Lifetime @ Temperature	2000 Hrs @ 85°C	2000 Hrs @ 105°C	2000 Hrs @ 85°C	2000 Hrs @ 105°C	10000 Hrs @ 105°C	4000 Hrs @ 125°C
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)	0.197" (5.00 mm)
Size / Dimension	0.512" Dia (13.00 mm)	0.512" Dia (13.00 mm)	0.512" Dia (13.00 mm)	0.512" Dia (13.00 mm)	0.512" Dia (13.00 mm)	0.492" Dia (12.50 mm)
Height - Seated (Max)	0.846" (21.50 mm)	0.846" (21.50 mm)	0.846" (21.50 mm)	0.846" (21.50 mm)	0.846" (21.50 mm)	0.866" (22.00 mm)
Package Type	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Equivalent Selection (25 V Rating):

860020478019 (Würth Elektronik WCAP-ATG5 series) provides equivalent electrical specifications with extended operating temperature range to 105°C and improved lifetime rating at elevated temperature (2000 Hrs @ 105°C). This part maintains identical voltage, capacitance, and mechanical dimensions.

860160478029 (Würth Elektronik WCAP-ATLL series) offers the longest operational lifetime (10000 Hrs @ 105°C) with extended temperature range (-55°C ~ 105°C) while maintaining 25 V rating and identical mechanical compatibility.

EEU-TP1E122B (Panasonic TP-A series) provides equivalent 25 V specifications with extended temperature capability (-40°C ~ 135°C) and higher lifetime rating (4000 Hrs @ 125°C). This part carries AEC-Q200 automotive qualification. Physical dimensions show minor variation: 0.492" diameter (12.50 mm) versus 0.512" (13.00 mm), and height of 0.866" (22.00 mm) versus 0.846" (21.50 mm). PCB layout verification is required for this substitution.

Upgraded Voltage Rating Selection (35 V):

860010578018 (Würth Elektronik WCAP-ATG8 series) maintains the same series as the original part with upgraded 35 V rating. Operating temperature and lifetime specifications remain identical to the main part.

860020578019 (Würth Elektronik WCAP-ATG5 series) combines 35 V voltage upgrade with extended operating temperature range to 105°C and improved lifetime at elevated temperature (2000 Hrs @ 105°C).

Frequently Asked Questions (FAQ)

Q: Can I use a 35 V rated capacitor in place of a 25 V rated capacitor?

A: Yes. The 35 V rated parts (860010578018, 860020578019) are direct mechanical and electrical substitutes for the 25 V application. Higher voltage ratings provide additional safety margin and are compatible with 25 V circuit designs.

Q: What is the difference between the Würth Elektronik WCAP-ATG8 and WCAP-ATG5 series?

A: The WCAP-ATG5 series (860020478019, 860020578019) extends the operating temperature range to 105°C and provides improved lifetime ratings at elevated temperatures compared to the WCAP-ATG8 series. Both maintain identical mechanical dimensions and lead spacing.

Q: Is the Panasonic EEU-TP1E122B a direct physical replacement?

A: The EEU-TP1E122B maintains identical lead spacing (0.197" / 5.00 mm) and similar overall dimensions. Minor physical variations exist: diameter is 0.492" (12.50 mm) versus 0.512" (13.00 mm), and height is 0.866" (22.00 mm) versus 0.846" (21.50 mm). PCB layout clearance verification is required before substitution.

Q: What does the WCAP-ATLL series offer compared to other options?

A: The 860160478029 (WCAP-ATLL series) provides the longest operational lifetime at 10000 hours at 105°C with the widest operating temperature range (-55°C ~ 105°C). This part is suitable for applications requiring extended service life and low-temperature operation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and maintain equivalent environmental compliance status to the original 860010478018.

Q: Which substitute part has automotive qualification?

A: The Panasonic EEU-TP1E122B carries AEC-Q200 automotive qualification and is rated for automotive applications with extended temperature capability to 135°C.

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