K390J10C0GF53L2 Equivalent & Substitute Parts

Part Overview

The K390J10C0GF53L2 is a 39 pF ceramic capacitor manufactured by Vishay Beyschlag/Draloric/BC Components in the Mono-Kap™ K series. This radial through-hole capacitor operates at 50V with C0G/NP0 temperature coefficient and ±5% tolerance, suitable for general-purpose applications across the -55°C to 125°C temperature range. The part is currently active in production with 687 units in stock. Equivalent and substitute parts are necessary when the original manufacturer part becomes unavailable, when lead times require alternative sourcing, or when design flexibility permits component standardization across multiple suppliers.

Substiute Parts

K390J10C0GF53L2

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 785K390J10C0GF53L2 Datasheet

Current PartRFQ

FK18C0G1H390JN020

TDK CorporationIn Stock: 1324FK18C0G1H390JN020 Datasheet

MFR RecommendedRFQ

FK28C0G1H390JN000

TDK CorporationIn Stock: 1044FK28C0G1H390JN000 Datasheet

MFR RecommendedRFQ

RDE5C1H390J0M1H03A

Murata ElectronicsIn Stock: 1930RDE5C1H390J0M1H03A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the K390J10C0GF53L2 is determined by strict electrical and mechanical parameter matching:

Electrical Parameters (Mandatory Match):

• Capacitance: 39 pF
• Tolerance: ±5%
• Voltage Rating: 50V minimum
• Temperature Coefficient: C0G/NP0
• Operating Temperature Range: -55°C to 125°C minimum

Mechanical Parameters (Critical for PCB Compatibility):

• Mounting Type: Through Hole
• Package Configuration: Radial
• Lead Spacing: 0.098" (2.50mm) primary; 0.197" (5.00mm) acceptable with board redesign consideration

Compliance Requirements:

• RoHS3 Compliant
• REACH Unaffected
• ECCN: EAR99

All three substitute parts meet these core criteria. Variations in physical dimensions (length, width, height) and lead style (straight vs. formed/kinked) do not affect electrical substitution but may require PCB layout verification.

Parameter Comparison

Engineering Selection Recommendations

FK18C0G1H390JN020 (TDK): This substitute matches the 0.098" (2.50mm) lead spacing of the original part, enabling direct PCB footprint compatibility. However, TDK has designated this part as "Not For New Designs," limiting its suitability for new product development. Physical dimensions are slightly larger (0.157" L x 0.098" W vs. 0.142" L x 0.091" W), requiring verification of available board space. Lead style is formed/kinked rather than straight, which may affect insertion force and handling characteristics.

FK28C0G1H390JN000 (TDK): This substitute features a 0.197" (5.00mm) lead spacing, requiring PCB redesign if the original 0.098" (2.50mm) spacing was used. Like FK18C0G1H390JN020, this part carries "Not For New Designs" status from TDK. Selection of this part is appropriate only when board layout permits the wider lead spacing or when existing inventory of this footprint exists.

RDE5C1H390J0M1H03A (Murata): This substitute maintains active product status, making it the preferred choice for new designs and long-term availability. The 0.197" (5.00mm) lead spacing requires PCB layout verification. Maximum seated height is 0.236" (6.00mm), the highest among the three substitutes, necessitating clearance confirmation. Packaging is Cut Tape (CT) rather than Bulk, affecting procurement and handling workflows. Inventory availability is highest at 1868 units.

All three substitutes meet mandatory electrical specifications and compliance requirements. Selection should prioritize product status (active vs. not for new designs), lead spacing compatibility with existing PCB layouts, and packaging format alignment with assembly processes.

Frequently Asked Questions (FAQ)

Q: Can FK18C0G1H390JN020 be used as a direct replacement for K390J10C0GF53L2?

A: FK18C0G1H390JN020 matches the critical electrical parameters (39 pF, ±5%, 50V, C0G/NP0, -55°C to 125°C) and lead spacing (0.098" / 2.50mm), enabling direct PCB footprint substitution. Physical dimensions are slightly larger, requiring verification of available board space. The "Not For New Designs" status from TDK should be considered for long-term product roadmap planning.

Q: What is the difference between FK18C0G1H390JN020 and FK28C0G1H390JN000?

A: Both are TDK FK series parts with identical electrical specifications. The primary difference is lead spacing: FK18C0G1H390JN020 uses 0.098" (2.50mm) spacing, matching the original part's footprint, while FK28C0G1H390JN000 uses 0.197" (5.00mm) spacing. Selection depends on existing PCB layout requirements. Both carry "Not For New Designs" status.

Q: Why does RDE5C1H390J0M1H03A have a higher seated height than the original part?

A: The RDE5C1H390J0M1H03A has a maximum seated height of 0.236" (6.00mm) compared to the original K390J10C0GF53L2 at 0.205" (5.20mm). This difference reflects manufacturing tolerances and internal construction variations between Murata and Vishay designs. PCB clearance must be verified before substitution, particularly in space-constrained applications.

Q: Can I use RDE5C1H390J0M1H03A with the original 0.098" (2.50mm) lead spacing PCB?

A: No. RDE5C1H390J0M1H03A uses 0.197" (5.00mm) lead spacing, requiring PCB redesign or rework. Direct substitution is not possible without modifying the board layout or using mechanical adapters, which are not recommended for production applications.

Q: What does "Not For New Designs" mean for TDK parts?

A: "Not For New Designs" indicates that TDK has discontinued or is phasing out these parts for new product development. These parts may have limited future availability and extended lead times. They are suitable for replacement or repair of existing products but should not be selected for new designs where long-term supply is required.

Q: Are all three substitutes RoHS3 compliant?

A: Yes. K390J10C0GF53L2, FK18C0G1H390JN020, FK28C0G1H390JN000, and RDE5C1H390J0M1H03A are all ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What packaging format differences exist between these parts?

A: K390J10C0GF53L2, FK18C0G1H390JN020, and FK28C0G1H390JN000 are supplied in Bulk packaging. RDE5C1H390J0M1H03A is supplied in Cut Tape (CT) format. Bulk packaging is typically used for manual assembly or small-volume production, while Cut Tape is standard for automated pick-and-place assembly. Procurement and assembly process compatibility should be verified.