K331M15X7RF53L2 Equivalent & Substitute Parts

Part Overview

The K331M15X7RF53L2 is a 330 pF ceramic capacitor rated at 50V with X7R temperature coefficient, manufactured by Vishay Beyschlag/Draloric/BC Components as part of 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 is ROHS3 compliant and currently active in production with 1041 pieces in stock. Equivalent and substitute parts are identified when design requirements allow for tolerance upgrades, voltage rating increases, or temperature coefficient modifications while maintaining the same capacitance value and physical form factor.

Substiute Parts

K331M15X7RF53L2

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1079K331M15X7RF53L2 Datasheet

Current PartRFQ

K331K15X7RF53L2

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 26761K331K15X7RF53L2 Datasheet

UpgradeRFQ

K331K15X7RH53L2

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 16922K331K15X7RH53L2 Datasheet

UpgradeRFQ

K331J15C0GF53L2

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 2441K331J15C0GF53L2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the K331M15X7RF53L2 are qualified based on the following criteria:

Electrical Parameters: Capacitance value must remain 330 pF. Voltage rating may be equal or higher. Tolerance may be equal or tighter. Temperature coefficient must be X7R or equivalent.

Mechanical Parameters: Mounting type must be through-hole radial configuration. Lead spacing must be 0.098" (2.50mm). Physical dimensions and height must match or be compatible with the original footprint.

Compliance Parameters: All substitutes must maintain ROHS3 compliance and active product status.

The three qualified substitutes are grouped as follows:

Upgrade Category 1 - Tolerance Improvement: K331K15X7RF53L2 maintains 50V rating and X7R coefficient while improving tolerance from ±20% to ±10%.

Upgrade Category 2 - Voltage Rating Increase: K331K15X7RH53L2 increases voltage rating from 50V to 100V while improving tolerance to ±10% and maintaining X7R coefficient.

Upgrade Category 3 - Temperature Coefficient Upgrade: K331J15C0GF53L2 maintains 50V rating but upgrades temperature coefficient from X7R to C0G/NP0 with improved tolerance of ±5%.

Parameter Comparison

Engineering Selection Recommendations

K331K15X7RF53L2 Selection: This substitute is appropriate when circuit design permits tolerance improvement from ±20% to ±10% without requiring voltage rating changes. The identical 50V rating and X7R temperature coefficient ensure direct functional compatibility. This part is recommended for applications where capacitance stability is a design priority and the original ±20% tolerance is unnecessarily loose.

K331K15X7RH53L2 Selection: This substitute is appropriate for applications requiring increased voltage margin or operating in higher voltage environments. The 100V rating provides additional safety margin over the original 50V specification while maintaining X7R temperature stability and improving tolerance to ±10%. This part is recommended when circuit redesign or component consolidation across multiple voltage platforms is desired.

K331J15C0GF53L2 Selection: This substitute is appropriate for applications requiring superior temperature stability and tighter capacitance tolerance. The C0G/NP0 temperature coefficient provides near-zero capacitance change across temperature extremes compared to X7R's ±15% variation. The ±5% tolerance represents the tightest specification available. This part is recommended for precision analog circuits, timing applications, or designs where temperature-dependent capacitance drift must be minimized.

All three substitutes maintain ROHS3 compliance, active product status, and identical through-hole radial packaging with matching lead spacing and physical dimensions, ensuring direct PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can K331K15X7RF53L2 be used as a direct replacement for K331M15X7RF53L2?

A: Yes. Both parts share identical capacitance (330 pF), voltage rating (50V), temperature coefficient (X7R), and physical dimensions. The K331K15X7RF53L2 offers improved tolerance (±10% versus ±20%), making it a direct upgrade with no circuit modifications required.

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

A: X7R temperature coefficient allows capacitance variation of ±15% across the -55°C to 125°C operating range. C0G/NP0 temperature coefficient provides near-zero capacitance change across the same temperature range. C0G/NP0 is preferred for precision applications where temperature stability is critical.

Q: Can K331K15X7RH53L2 be used in a circuit designed for 50V operation?

A: Yes. The K331K15X7RH53L2 is rated for 100V, which exceeds the 50V requirement. Using a higher-rated component in a lower-voltage application is electrically safe and provides additional voltage margin. No circuit modifications are required.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts maintain identical lead spacing (0.098" / 2.50mm), physical dimensions (0.157" L x 0.102" W / 4.00mm x 2.60mm), and maximum seated height (0.220" / 5.60mm). Direct PCB footprint compatibility is confirmed for all substitutes.

Q: Which substitute should be selected for a precision timing circuit?

A: K331J15C0GF53L2 is the appropriate selection. The C0G/NP0 temperature coefficient provides superior temperature stability compared to X7R, and the ±5% tolerance is the tightest available among the substitutes, both critical for precision timing applications.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All three substitute parts maintain ROHS3 compliance status, matching the original K331M15X7RF53L2 specification.