Equivalent & Substitute Parts for Würth Elektronik 860010572001

Part Overview

The Würth Elektronik 860010572001 is a 4.7 µF, 35 V aluminum electrolytic capacitor in radial configuration with a 2000-hour lifetime rating at 85°C. This component is classified as Active and suitable for general-purpose applications requiring through-hole mounting in standard 2.00 mm lead spacing.

Substitute parts are necessary when the original component becomes unavailable, when design requirements demand enhanced thermal performance, higher voltage ratings, or extended operational lifetime. The substitute parts listed maintain electrical compatibility while offering variations in thermal characteristics, voltage ratings, and series designations.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Tolerance	±20%
Voltage Rating	35 V
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.079" (2.00 mm)
Case Diameter	0.197" (5.00 mm)
Height (Seated Max)	0.492" (12.50 mm)
Mounting Type	Through Hole, Radial
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 860010572001 is determined by the following criteria:

Primary Compatibility Requirements:

Capacitance value: 4.7 µF (fixed)
Tolerance: ±20% (fixed)
Mounting type: Through hole, radial configuration
Package case: Radial, can format
Lead spacing: 0.079" (2.00 mm) or mechanically compatible spacing
Physical dimensions: Case diameter 0.197" (5.00 mm), height 0.492" (12.50 mm) or compatible

Voltage Rating Substitution Logic:

Direct substitutes: 35 V rated (same voltage class)
Upgrade substitutes: 50 V, 63 V, or 100 V rated (higher voltage provides design margin and compatibility in lower-voltage applications)

Thermal Performance Variations:

Same series (WCAP-ATG8): 2000 Hrs @ 85°C
Enhanced series (WCAP-ATG5): 2000 Hrs @ 105°C (extended operating temperature)
Premium series (WCAP-ATLL): 4000 Hrs @ 105°C (extended lifetime and temperature range)
Alternative manufacturers (Nichicon UKL, UPJ series): Varying thermal ratings from 1000 to 2000 hours

Lead Spacing Tolerance: Parts with 0.098" (2.50 mm) lead spacing are listed as direct substitutes where mechanical compatibility is confirmed through cross-reference documentation.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Height (Max)	Product Status
860010572001	Würth Elektronik	WCAP-ATG8	4.7 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00 mm)	0.492" (12.50 mm)	Active
860020572001	Würth Elektronik	WCAP-ATG5	4.7 µF	35 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.079" (2.00 mm)	0.492" (12.50 mm)	Active
860010672008	Würth Elektronik	WCAP-ATG8	4.7 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00 mm)	0.492" (12.50 mm)	Active
860010772008	Würth Elektronik	WCAP-ATG8	4.7 µF	63 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00 mm)	0.492" (12.50 mm)	Active
860020672008	Würth Elektronik	WCAP-ATG5	4.7 µF	50 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.079" (2.00 mm)	0.492" (12.50 mm)	Active
860020772008	Würth Elektronik	WCAP-ATG5	4.7 µF	63 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.079" (2.00 mm)	0.492" (12.50 mm)	Active
860160672005	Würth Elektronik	WCAP-ATLL	4.7 µF	50 V	±20%	4000 Hrs @ 105°C	-55°C ~ 105°C	0.079" (2.00 mm)	0.492" (12.50 mm)	Active
UKL1H4R7KDDANATD	Nichicon	UKL	4.7 µF	50 V	±10%	1000 Hrs @ 105°C	-40°C ~ 105°C	0.098" (2.50 mm)	0.472" (12.00 mm)	Not For New Designs
UKL1H4R7MDD1TD	Nichicon	UKL	4.7 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50 mm)	0.492" (12.50 mm)	Obsolete
UKL2A4R7MDD1TD	Nichicon	UKL	4.7 µF	100 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50 mm)	0.492" (12.50 mm)	Obsolete
UPJ1K4R7MDD1TD	Nichicon	UPJ	4.7 µF	80 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.098" (2.50 mm)	0.472" (12.00 mm)	Obsolete

Engineering Selection Recommendations

Würth Elektronik Direct Substitutes (Same Voltage, 35 V):

860020572001 is the primary direct substitute. It maintains the 4.7 µF capacitance and 35 V voltage rating while upgrading the thermal performance from WCAP-ATG8 to WCAP-ATG5 series. The operating temperature range extends to 105°C, and lifetime rating remains 2000 hours at the elevated temperature. This part is Active and suitable for new designs.

Würth Elektronik Upgrade Substitutes (Higher Voltage):

Parts 860010672008, 860010772008, 860020672008, and 860020772008 provide voltage upgrades to 50 V and 63 V while maintaining the 4.7 µF capacitance. These upgrades are electrically compatible in applications rated for 35 V operation and provide additional design margin. The WCAP-ATG5 variants (860020672008, 860020772008) offer extended operating temperature to 105°C.

860160672005 represents the premium option within the Würth Elektronik portfolio. The WCAP-ATLL series provides 4000-hour lifetime at 105°C with extended operating temperature range (-55°C to 105°C) and 50 V voltage rating. This part is Active and suitable for applications requiring enhanced reliability and thermal performance.

Nichicon Alternatives:

Nichicon UKL and UPJ series parts are listed as cross-references. UKL1H4R7MDD1TD is marked Obsolete and carries a 2.50 mm lead spacing, requiring mechanical verification before substitution. UKL2A4R7MDD1TD is also Obsolete with 100 V rating. UPJ1K4R7MDD1TD is Obsolete with 80 V rating and 2.50 mm lead spacing. UKL1H4R7KDDANATD is marked Not For New Designs.

All substitute parts maintain ROHS3 compliance and REACH Unaffected status consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can I substitute 860020572001 for 860010572001 in my design?

A: Yes. Both parts share identical capacitance (4.7 µF), tolerance (±20%), voltage rating (35 V), and physical dimensions. The 860020572001 uses the WCAP-ATG5 series with extended operating temperature to 105°C, making it a compatible upgrade. Both are Active products.

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

A: WCAP-ATG8 series is rated for 2000 hours at 85°C with operating temperature range -40°C to 85°C. WCAP-ATG5 series is rated for 2000 hours at 105°C with operating temperature range -40°C to 105°C. The WCAP-ATG5 provides enhanced thermal performance and wider operating temperature range.

Q: Can I use a 50 V rated part (860010672008) instead of the 35 V original (860010572001)?

A: Yes. Higher voltage-rated capacitors are electrically compatible in lower-voltage applications. The 860010672008 maintains identical capacitance, tolerance, and physical dimensions while providing additional voltage margin. This is a standard engineering practice for design robustness.

Q: What is the WCAP-ATLL series and when should I use it?

A: WCAP-ATLL is a premium series offering 4000-hour lifetime at 105°C compared to 2000 hours for standard series. Part 860160672005 is suitable for applications requiring extended operational life, higher reliability, or operation in elevated ambient temperature environments. It maintains the 4.7 µF capacitance and 50 V rating with extended temperature range (-55°C to 105°C).

Q: Are Nichicon UKL parts direct replacements?

A: Nichicon UKL parts share the same capacitance and voltage ratings but have 2.50 mm lead spacing compared to the 2.00 mm spacing of the original part. Mechanical compatibility must be verified against PCB layout. Additionally, UKL1H4R7MDD1TD and UKL2A4R7MDD1TD are marked Obsolete, making them unsuitable for new designs.

Q: What does "Not For New Designs" mean for UKL1H4R7KDDANATD?

A: This product status indicates the part is available for existing applications but should not be selected for new circuit designs. Würth Elektronik Active alternatives are recommended for new development.

Q: Can I use UKL2A4R7MDD1TD (100 V) as a substitute?

A: While electrically compatible due to matching capacitance and tolerance, this part is marked Obsolete and carries 2.50 mm lead spacing. It is not recommended for new designs or production applications.

Q: What is the significance of the ±10% tolerance on UKL1H4R7KDDANATD?

A: The ±10% tolerance is tighter than the ±20% tolerance of the original part. This provides better capacitance accuracy but does not affect substitution eligibility. The part remains compatible in applications designed for ±20% tolerance.

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