Würth Elektronik 860160272002 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 860160272002 is a 27 µF aluminum electrolytic capacitor rated at 10 V with radial through-hole mounting. This component belongs to the WCAP-ATLL series and is designed for general-purpose applications requiring stable capacitance over extended operational periods. The part is currently active in production with ROHS3 compliance and maintains a 4000-hour lifetime rating at 105°C operating temperature.

Substitute parts become necessary when circuit design requirements demand higher voltage ratings, improved ripple current handling, or when primary inventory availability is constrained. The substitute parts listed maintain identical capacitance values and mechanical compatibility while offering enhanced electrical performance characteristics.

Key Parameters

Parameter	Value
Capacitance	27 µF
Voltage Rating	10 V
Tolerance	±20%
Lifetime @ Temperature	4000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Polarization	Polar
Lead Spacing	0.079" (2.00 mm)
Package Type	Radial, Can
Mounting Type	Through Hole
Series	WCAP-ATLL

Substitute Part Grouping Explanation

Substitution eligibility for the 860160272002 is determined by the following criteria:

Fixed Parameters (Must Match):

Capacitance: 27 µF
Tolerance: ±20%
Polarization: Polar
Lead Spacing: 0.079" (2.00 mm)
Package Type: Radial, Can
Mounting Type: Through Hole
Series: WCAP-ATLL
Operating Temperature Range: -55°C ~ 105°C
Lifetime @ Temperature: 4000 Hrs @ 105°C

Variable Parameter (Allows Substitution):

Voltage Rating: Substitute parts may have equal or higher voltage ratings than the original specification

The two substitute parts (860160372004 and 860160472004) maintain all fixed parameters while offering increased voltage ratings of 16 V and 25 V respectively. This voltage upgrade capability allows these parts to function in applications requiring higher voltage tolerance without compromising mechanical fit or electrical baseline performance.

Parameter Comparison

Parameter	860160272002 (Main)	860160372004 (Substitute)	860160472004 (Substitute)
Capacitance	27 µF	27 µF	27 µF
Voltage Rating	10 V	16 V	25 V
Tolerance	±20%	±20%	±20%
Ripple Current @ 120 Hz	37.44 mA	68.64 mA	81.12 mA
Ripple Current @ 100 kHz	72 mA	132 mA	156 mA
Impedance	2.67 Ohms	2.37 Ohms	2.03 Ohms
Lead Spacing	0.079" (2.00 mm)	0.079" (2.00 mm)	0.079" (2.00 mm)
Size / Dimension	0.197" Dia (5.00 mm)	0.197" Dia (5.00 mm)	0.197" Dia (5.00 mm)
Height - Seated (Max)	0.492" (12.50 mm)	0.492" (12.50 mm)	0.492" (12.50 mm)
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lifetime @ Temperature	4000 Hrs @ 105°C	4000 Hrs @ 105°C	4000 Hrs @ 105°C
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All three parts maintain active product status with ROHS3 compliance and identical thermal lifetime specifications. Selection between the main part and substitutes depends on circuit voltage requirements:

860160272002 (10 V Rating): Use when circuit design specifies maximum 10 V operating voltage and component cost optimization is prioritized.

860160372004 (16 V Rating): Use when circuit design requires voltage margin above 10 V but does not exceed 16 V. This part provides improved ripple current handling and reduced impedance compared to the main part while maintaining identical mechanical compatibility.

860160472004 (25 V Rating): Use when circuit design requires maximum voltage headroom or operates in environments with potential voltage transients. This part delivers the highest ripple current capacity and lowest impedance of the three options.

All substitute parts are electrically and mechanically compatible with the original specification and require no PCB redesign or layout modification.

Frequently Asked Questions (FAQ)

Q: Can 860160372004 or 860160472004 be used as direct replacements for 860160272002?

A: Yes. Both substitute parts maintain identical capacitance (27 µF), tolerance (±20%), lead spacing (2.00 mm), physical dimensions, and mounting type. The higher voltage ratings do not affect mechanical fit or baseline electrical performance in applications designed for 10 V operation.

Q: What is the primary difference between the three parts?

A: The voltage rating increases from 10 V to 16 V to 25 V across the three parts. This voltage increase correlates with improved ripple current handling and reduced impedance. Capacitance and all mechanical parameters remain constant.

Q: Are there any compatibility concerns when substituting to a higher voltage rating?

A: No compatibility concerns exist. Higher voltage-rated capacitors function correctly in lower-voltage applications. The circuit will operate within the voltage margin of the substitute part without performance degradation.

Q: Do the substitute parts require different PCB footprints?

A: No. All three parts share identical lead spacing (2.00 mm), diameter (5.00 mm), and maximum seated height (12.50 mm). PCB layout and footprints are interchangeable.

Q: Which part should be selected for new designs?

A: Selection depends on the circuit's maximum operating voltage. If the design operates at or below 10 V with no transient voltage events, 860160272002 is appropriate. If voltage margin is desired or transient conditions exist, 860160372004 or 860160472004 provide additional safety margin while maintaining identical mechanical compatibility.

Q: Are all three parts ROHS3 compliant?

A: Yes. All three parts carry ROHS3 compliance certification and are suitable for applications requiring environmental regulatory compliance.

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