K181J15C0GF53L2 Equivalent & Substitute Parts

Part Overview

The K181J15C0GF53L2 is a 180 pF ceramic capacitor manufactured by Vishay Beyschlag/Draloric/BC Components in the Mono-Kap™ K series. This radial through-hole component operates at 50V with C0G/NP0 temperature coefficient and ±5% tolerance, designed for general-purpose applications across the -55°C to 125°C temperature range. The part is currently active and ROHS3 compliant. Equivalent and substitute parts are necessary when the original part becomes unavailable, when lead spacing or physical dimensions require adjustment for PCB layout optimization, or when alternative manufacturer sourcing is required for supply chain continuity.

Key Parameters

Parameter	Value
Capacitance	180 pF
Tolerance	±5%
Voltage Rating	50V
Temperature Coefficient	C0G, NP0
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.098" (2.50mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the K181J15C0GF53L2 is determined by strict equivalence across the following critical parameters: capacitance value (180 pF), tolerance (±5%), voltage rating (50V), temperature coefficient (C0G/NP0), operating temperature range (-55°C to 125°C), mounting type (through-hole radial), and RoHS3 compliance. All identified substitute parts meet these core electrical and compliance requirements. Physical dimensions and lead spacing variations are secondary considerations that may require PCB layout verification but do not disqualify functional equivalence. The substitute parts are grouped by manufacturer and lead spacing configuration to facilitate selection based on specific layout constraints.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Operating Temp	Lead Spacing	Height (Max)	Product Status	RoHS3
K181J15C0GF53L2	Vishay Beyschlag/Draloric/BC Components	180 pF	±5%	50V	C0G, NP0	-55°C to 125°C	0.098" (2.50mm)	0.220" (5.60mm)	Active	Yes
FK18C0G1H181JN020	TDK Corporation	180 pF	±5%	50V	C0G, NP0	-55°C to 125°C	0.098" (2.50mm)	0.217" (5.50mm)	Not For New Designs	Yes
FK28C0G1H181JN000	TDK Corporation	180 pF	±5%	50V	C0G, NP0	-55°C to 125°C	0.197" (5.00mm)	0.217" (5.50mm)	Not For New Designs	Yes
RDE5C1H181J0K1H03B	Murata Electronics	180 pF	±5%	50V	C0G, NP0	-55°C to 125°C	0.197" (5.00mm)	0.236" (6.00mm)	Active	Yes
RDE5C1H181J0P1H03B	Murata Electronics	180 pF	±5%	50V	C0G, NP0	-55°C to 125°C	0.098" (2.50mm)	0.236" (6.00mm)	Active	Yes
SR155A181JAR	KYOCERA AVX	180 pF	±5%	50V	C0G, NP0	-55°C to 125°C	0.100" (2.54mm)	0.150" (3.81mm)	Active	Yes

Engineering Selection Recommendations

All substitute parts listed maintain full electrical equivalence to the K181J15C0GF53L2 across capacitance, tolerance, voltage rating, temperature coefficient, and operating temperature specifications. All parts are ROHS3 compliant and REACH unaffected.

For new designs, prioritize active product status parts: RDE5C1H181J0K1H03B, RDE5C1H181J0P1H03B, and SR155A181JAR. These parts ensure long-term availability and manufacturer support.

For existing designs requiring direct replacement with minimal PCB layout modification, RDE5C1H181J0P1H03B and SR155A181JAR offer lead spacing closest to the original 0.098" (2.50mm) specification. RDE5C1H181J0P1H03B maintains identical lead spacing while providing active product status from Murata Electronics.

For applications where increased lead spacing accommodates PCB layout requirements, FK28C0G1H181JN000 and RDE5C1H181J0K1H03B provide 0.197" (5.00mm) spacing. Note that FK28C0G1H181JN000 carries "Not For New Designs" status and should be used only for legacy system maintenance.

SR155A181JAR from KYOCERA AVX offers the most compact physical profile (0.150" height) and is suitable for space-constrained applications while maintaining full electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can FK18C0G1H181JN020 and FK28C0G1H181JN000 be used in new designs?

A: Both TDK parts carry "Not For New Designs" product status. They are suitable only for replacement in existing systems or legacy applications. For new designs, select from active status alternatives: RDE5C1H181J0K1H03B, RDE5C1H181J0P1H03B, or SR155A181JAR.

Q: What is the difference between RDE5C1H181J0K1H03B and RDE5C1H181J0P1H03B?

A: Both are Murata Electronics RDE series parts with identical electrical specifications. The primary difference is lead spacing: RDE5C1H181J0K1H03B has 0.197" (5.00mm) spacing, while RDE5C1H181J0P1H03B has 0.098" (2.50mm) spacing matching the original K181J15C0GF53L2. Select based on PCB layout requirements.

Q: Is SR155A181JAR compatible with standard 0.100" (2.54mm) lead spacing PCBs?

A: SR155A181JAR has 0.100" (2.54mm) lead spacing, which is compatible with standard 0.100" pitch PCB layouts. This part also features the lowest profile height at 0.150" (3.81mm), making it suitable for compact applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Can lead spacing differences affect circuit performance?

A: Lead spacing affects PCB layout and trace routing but does not alter electrical performance. All parts maintain identical capacitance, tolerance, voltage rating, and temperature coefficient. Verify PCB pad spacing compatibility before selection.

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