K331M10X7RF53L2 Equivalent & Substitute Parts

Part Overview

The K331M10X7RF53L2 is a 330 pF ceramic capacitor with X7R temperature coefficient, rated for 50V operation, and designed for through-hole radial mounting. This component is manufactured by Vishay Beyschlag/Draloric/BC Components under the Mono-Kap™ K series and maintains Active product status. Substitute parts are identified to address tolerance requirements, voltage rating upgrades, or temperature coefficient specifications while maintaining the same capacitance value and core electrical characteristics.

Key Parameters

Parameter	K331M10X7RF53L2
Capacitance	330 pF
Tolerance	±20%
Voltage Rating	50V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Through Hole
Package	Radial
Lead Spacing	0.098" (2.50mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the K331M10X7RF53L2 is determined by the following criteria:

Capacitance Value: All substitute parts maintain 330 pF capacitance to ensure functional equivalence in the circuit.

Mounting Type & Package: All substitutes use through-hole radial mounting with 0.098" (2.50mm) lead spacing, ensuring mechanical compatibility with existing PCB layouts.

Temperature Coefficient: Substitutes may employ X7R or C0G/NP0 temperature coefficients. X7R provides ±15% capacitance variation across the operating temperature range, while C0G/NP0 provides superior stability with ±0.3% variation per °C, making it suitable for precision applications.

Tolerance: Substitute parts offer tighter tolerances (±10% or ±5%) compared to the original ±20%, providing improved capacitance accuracy when required.

Voltage Rating: Substitutes rated at 50V or higher maintain voltage compatibility. Higher voltage ratings (100V) provide additional safety margin in applications subject to voltage transients.

Compliance: All parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment.

Parameter Comparison

Part Number	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Lead Spacing	Size (L x W)	Height (Max)
K331M10X7RF53L2	330 pF	±20%	50V	X7R	0.098" (2.50mm)	0.142" x 0.091" (3.60mm x 2.30mm)	0.205" (5.20mm)
K331K15X7RF53L2	330 pF	±10%	50V	X7R	0.098" (2.50mm)	0.157" x 0.102" (4.00mm x 2.60mm)	0.220" (5.60mm)
K331K15X7RH53L2	330 pF	±10%	100V	X7R	0.098" (2.50mm)	0.157" x 0.102" (4.00mm x 2.60mm)	0.220" (5.60mm)
K331J15C0GF53L2	330 pF	±5%	50V	C0G/NP0	0.098" (2.50mm)	0.157" x 0.102" (4.00mm x 2.60mm)	0.220" (5.60mm)

Engineering Selection Recommendations

K331K15X7RF53L2 (Upgrade - Tighter Tolerance): Select this substitute when circuit design requires improved capacitance accuracy. The ±10% tolerance reduces capacitance variation compared to the original ±20%, while maintaining identical voltage rating and X7R temperature coefficient. Physical dimensions are slightly larger; verify PCB layout clearance before substitution.

K331K15X7RH53L2 (Upgrade - Higher Voltage Rating): Select this substitute for applications requiring enhanced voltage margin or operating in environments with potential voltage transients. The 100V rating provides 2× safety factor over the original 50V specification while maintaining ±10% tolerance and X7R characteristics. Physical dimensions match K331K15X7RF53L2; verify PCB layout compatibility.

K331J15C0GF53L2 (Manufacturer Recommended - Superior Temperature Stability): Select this substitute for precision applications requiring minimal capacitance drift across temperature extremes. C0G/NP0 temperature coefficient delivers superior stability compared to X7R, with ±5% tolerance providing the tightest capacitance control among available options. All parts maintain ROHS3 compliance and Active product status. Physical dimensions match K331K15X7RF53L2.

Frequently Asked Questions (FAQ)

Q: Can K331K15X7RF53L2 be used as a direct replacement for K331M10X7RF53L2?

A: Yes, with layout verification. Both parts share identical capacitance (330 pF), voltage rating (50V), temperature coefficient (X7R), and lead spacing (2.50mm). K331K15X7RF53L2 offers improved tolerance (±10% vs. ±20%) and slightly larger physical dimensions (0.157" x 0.102" vs. 0.142" x 0.091"). Confirm PCB layout accommodates the larger footprint before substitution.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients?

A: X7R provides ±15% capacitance variation across the -55°C to 125°C operating range. C0G/NP0 provides superior stability with ±0.3% variation per °C, resulting in minimal capacitance drift across temperature extremes. C0G/NP0 is preferred for precision timing circuits, filters, and applications sensitive to capacitance variation.

Q: Is K331K15X7RH53L2 compatible with 50V circuit designs?

A: Yes. K331K15X7RH53L2 is rated for 100V operation, making it fully compatible with 50V circuits. The higher voltage rating provides additional safety margin without affecting circuit performance. All other electrical parameters (capacitance, tolerance, temperature coefficient) remain equivalent to the original part.

Q: Do all substitute parts maintain the same lead spacing?

A: Yes. All substitute parts maintain 0.098" (2.50mm) lead spacing, ensuring mechanical compatibility with existing PCB hole patterns. Physical length and width dimensions vary slightly; verify PCB layout clearance for K331K15X7RF53L2, K331K15X7RH53L2, and K331J15C0GF53L2 before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment with current environmental and hazardous substance restrictions.

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