K331J15C0GF53K2 Equivalent & Substitute Parts

Part Overview

The K331J15C0GF53K2 is a 330 pF ±5% 50V ceramic capacitor with C0G/NP0 temperature coefficient manufactured by Vishay Beyschlag/Draloric/BC Components in the Mono-Kap™ K series. This radial through-hole component is designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part maintains active product status with ROHS3 compliance and is suitable for direct component selection in new designs. Equivalent and substitute parts are identified based on matching electrical specifications (capacitance, tolerance, voltage rating, temperature coefficient) and compatible mechanical parameters (mounting type, lead configuration, package dimensions).

Key Parameters

Parameter	Value
Capacitance	330 pF
Tolerance	±5%
Voltage - Rated	50V
Temperature Coefficient	C0G, NP0
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Through Hole
Package / Case	Radial
Lead Spacing	0.098" (2.50mm) or 0.100" (2.54mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the K331J15C0GF53K2 are classified into three categories based on electrical and mechanical compatibility:

Direct Equivalents (Same Voltage Rating - 50V): Parts with identical capacitance (330 pF), tolerance (±5%), voltage rating (50V), and temperature coefficient (C0G/NP0). These parts differ only in lead spacing, lead style, or height dimensions while maintaining through-hole radial mounting. Direct equivalents include K331J15C0GF53L2, FK18C0G1H331JN020, FK28C0G1H331JN000, and RDE5C1H331J0K1H03B.

Upgrade Options (Higher Voltage Rating - 100V): Parts manufactured by KYOCERA AVX in the SkyCap® SR series with identical capacitance (330 pF), tolerance (±5%), and temperature coefficient (C0G/NP0) but rated for 100V operation. These include SR151A331JAR and SR151A331JARTR1. The higher voltage rating provides additional design margin in applications where voltage stress is a consideration, though the 50V rating of the original part is sufficient for its specified use.

Substitution Criteria: All substitute parts maintain the same electrical performance (330 pF ±5% C0G/NP0) and operating temperature range (-55°C ~ 125°C). Mechanical compatibility is determined by lead spacing (2.50mm or 2.54mm), lead style (formed kinked or straight), and overall package dimensions. Parts are suitable for substitution when PCB layout accommodates the physical dimensions and lead configuration of the selected alternative.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage - Rated	Temperature Coefficient	Operating Temperature	Mounting Type	Lead Spacing	Height - Seated (Max)	Product Status	RoHS Status
K331J15C0GF53K2	Vishay Beyschlag/Draloric/BC Components	330 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	Through Hole	0.098" (2.50mm)	0.295" (7.50mm)	Active	ROHS3 Compliant
K331J15C0GF53L2	Vishay Beyschlag/Draloric/BC Components	330 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	Through Hole	0.098" (2.50mm)	0.220" (5.60mm)	Active	ROHS3 Compliant
FK18C0G1H331JN020	TDK Corporation	330 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	Through Hole	0.098" (2.50mm)	0.217" (5.50mm)	Not For New Designs	ROHS3 Compliant
FK28C0G1H331JN000	TDK Corporation	330 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	Through Hole	0.197" (5.00mm)	0.217" (5.50mm)	Not For New Designs	ROHS3 Compliant
RDE5C1H331J0K1H03B	Murata Electronics	330 pF	±5%	50V	C0G, NP0	-55°C ~ 125°C	Through Hole	0.197" (5.00mm)	0.236" (6.00mm)	Active	ROHS3 Compliant
SR151A331JAR	KYOCERA AVX	330 pF	±5%	100V	C0G, NP0	-55°C ~ 125°C	Through Hole	0.100" (2.54mm)	0.150" (3.81mm)	Active	ROHS3 Compliant
SR151A331JARTR1	KYOCERA AVX	330 pF	±5%	100V	C0G, NP0	-55°C ~ 125°C	Through Hole	0.100" (2.54mm)	0.150" (3.81mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (50V Rating): K331J15C0GF53L2 is the preferred direct substitute, manufactured by the same supplier (Vishay) with active product status. This part maintains identical electrical specifications and differs only in lead style (straight vs. kinked) and reduced seated height (5.60mm vs. 7.50mm), making it suitable for space-constrained layouts. RDE5C1H331J0K1H03B from Murata Electronics is an active alternative with identical electrical performance but requires verification of lead spacing compatibility (5.00mm vs. 2.50mm).

For New Designs: K331J15C0GF53K2 and K331J15C0GF53L2 maintain active product status and are recommended for new designs. FK18C0G1H331JN020 and FK28C0G1H331JN000 from TDK are marked "Not For New Designs" and should be used only for legacy system maintenance or when existing inventory constraints require their use.

For Upgraded Voltage Margin: SR151A331JAR and SR151A331JARTR1 from KYOCERA AVX provide 100V rating with identical capacitance and tolerance. These parts are suitable when design requirements specify higher voltage headroom. SR151A331JARTR1 is supplied in cut tape packaging, while SR151A331JAR is supplied in bulk. Both maintain active product status and ROHS3 compliance. Lead spacing differs (2.54mm vs. 2.50mm), requiring PCB layout verification.

Compliance Verification: All listed substitutes maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification, matching the regulatory profile of the original part.

Frequently Asked Questions (FAQ)

Q: Can K331J15C0GF53L2 be used as a direct replacement for K331J15C0GF53K2?

A: Yes. Both parts are manufactured by Vishay with identical electrical specifications (330 pF ±5% 50V C0G/NP0). The primary differences are lead style (K331J15C0GF53L2 has straight leads vs. kinked leads on K331J15C0GF53K2) and seated height (5.60mm vs. 7.50mm). PCB layout must accommodate these physical differences.

Q: What is the difference between the 50V and 100V rated substitutes?

A: The 50V parts (K331J15C0GF53K2, K331J15C0GF53L2, FK18C0G1H331JN020, FK28C0G1H331JN000, RDE5C1H331J0K1H03B) are rated for maximum 50V operation. The 100V parts (SR151A331JAR, SR151A331JARTR1) provide higher voltage rating with identical capacitance and tolerance. Selection depends on circuit voltage requirements; 100V parts offer additional design margin but are not required if 50V rating is adequate.

Q: Are TDK FK series parts suitable for new designs?

A: FK18C0G1H331JN020 and FK28C0G1H331JN000 are marked "Not For New Designs" by TDK. These parts should be used only for replacement in existing systems or when legacy compatibility is required. For new designs, select K331J15C0GF53K2, K331J15C0GF53L2, RDE5C1H331J0K1H03B, or SR151A331JAR/SR151A331JARTR1.

Q: What lead spacing options are available?

A: Substitute parts are available with three lead spacing configurations: 2.50mm (K331J15C0GF53K2, K331J15C0GF53L2, FK18C0G1H331JN020), 2.54mm (SR151A331JAR, SR151A331JARTR1), and 5.00mm (FK28C0G1H331JN000, RDE5C1H331J0K1H03B). PCB layout must match the selected lead spacing.

Q: What is the difference between SR151A331JAR and SR151A331JARTR1?

A: Both parts are electrically identical (330 pF ±5% 100V C0G/NP0) and manufactured by KYOCERA AVX. The difference is packaging: SR151A331JAR is supplied in bulk, while SR151A331JARTR1 is supplied in cut tape (CT). Selection depends on procurement and assembly requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory profile of K331J15C0GF53K2.

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