Equivalent & Substitute Parts: C320C511K3G5TA

Part Overview

The C320C511K3G5TA is a 510 pF ceramic capacitor manufactured by KEMET, part of the GoldMax 300 Comm C0G series. This radial through-hole component operates at 25V with ±10% tolerance and C0G (NP0) temperature coefficient, suitable for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The component features low ESL characteristics and is ROHS3 compliant. Finding equivalent or substitute parts becomes necessary when the primary part is unavailable, when design requirements change, or when alternative electrical specifications better suit application needs.

Substiute Parts

C320C511K3G5TA

KEMETIn Stock: 1041C320C511K3G5TA Datasheet

Current PartRFQ

C315C511G1G5TA

KEMETIn Stock: 8258C315C511G1G5TA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the C320C511K3G5TA is determined by the following criteria:

Mandatory Parameters (Must Match Exactly):

• Capacitance value: 510 pF
• Temperature coefficient: C0G, NP0
• Mounting type: Through Hole Radial
• Lead spacing: 0.100" (2.54mm)
• Operating temperature range: -55°C to 125°C

Allowable Parameter Variations:

• Voltage rating: May be equal to or greater than 25V
• Tolerance: May be equal to or tighter than ±10%
• Physical dimensions: May vary within PCB layout constraints
• Manufacturer: Alternative manufacturers acceptable if all mandatory parameters match

The substitute part C315C511G1G5TA meets all mandatory parameters while offering improved specifications in voltage rating (100V vs. 25V) and tolerance (±2% vs. ±10%). The higher voltage rating provides additional design margin, and the tighter tolerance improves circuit precision.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (C320C511K3G5TA): Select this part when the 25V voltage rating is sufficient for the application and the ±10% tolerance meets circuit requirements. This part is active and ROHS3 compliant with established supply availability.

Substitute Part Selection (C315C511G1G5TA): Select this substitute when:

• The application requires higher voltage margin (100V rating provides additional safety factor)
• Tighter capacitance tolerance (±2%) improves circuit performance or precision
• Smaller physical dimensions (5.08mm x 3.18mm reduced to 3.81mm x 2.54mm) benefit PCB layout density
• Lower profile height (7.36mm reduced to 4.66mm) accommodates space constraints

Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Both maintain identical electrical performance in terms of capacitance value and temperature stability across the -55°C to 125°C operating range.

Frequently Asked Questions (FAQ)

Q: Can C315C511G1G5TA replace C320C511K3G5TA in any application?

A: Yes, provided the PCB layout accommodates the smaller physical dimensions (3.81mm x 2.54mm vs. 5.08mm x 3.18mm) and lower profile height (4.66mm vs. 7.36mm). The electrical performance is superior due to higher voltage rating and tighter tolerance.

Q: What is the difference between ±10% and ±2% tolerance?

A: Tolerance specifies the allowable deviation from the nominal 510 pF capacitance value. The ±10% part allows deviation between 459 pF and 561 pF. The ±2% part allows deviation between 499.8 pF and 520.2 pF. Tighter tolerance provides more precise capacitance values for applications requiring higher accuracy.

Q: Why is the substitute part rated at 100V instead of 25V?

A: Higher voltage rating indicates the component can safely operate at higher electrical stress levels. A 100V-rated capacitor can be used in 25V applications with additional design margin and reliability. The 25V rating is the minimum requirement; exceeding it is not acceptable, but using a higher-rated component is acceptable.

Q: Are both parts compatible with the same PCB footprint?

A: Both parts have identical lead spacing (0.100" / 2.54mm), so they share the same footprint pattern. However, the substitute part has smaller body dimensions and lower profile, which may require PCB layout verification to ensure no mechanical interference with adjacent components.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both C320C511K3G5TA and C315C511G1G5TA are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: What is C0G/NP0 temperature coefficient?

A: C0G (IEC standard) and NP0 (EIA standard) designate the same temperature coefficient characteristic: ±30 ppm/°C maximum. This ensures capacitance remains stable across the -55°C to 125°C operating temperature range, making these parts suitable for precision applications.

Q: Can I use the substitute part if my design specifies the main part number?

A: Substitution requires engineering review to confirm that improved specifications (higher voltage rating, tighter tolerance, smaller size) do not conflict with design intent. Verify PCB layout compatibility with the smaller dimensions before implementation.