HT14BN103FN Equivalent & Substitute Parts

Part Overview

The HT14BN103FN is a 10000 pF (0.01 µF) ceramic capacitor manufactured by KEMET, rated for 50V with C0G/NP0 temperature coefficient and ±1% tolerance. This component is designed for through-hole axial mounting and operates across an extended temperature range of -55°C to 200°C, making it suitable for high-temperature industrial applications. The part is classified as obsolete, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility while offering active product status and current availability.

Substiute Parts

HT14BN103FN

KEMETIn Stock: 886HT14BN103FN Datasheet

Current PartRFQ

SA305A103FAR

KYOCERA AVXIn Stock: 881SA305A103FAR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HT14BN103FN are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match):

• Capacitance value: 10000 pF
• Temperature coefficient: C0G/NP0
• Tolerance: ±1% (or tighter)
• Voltage rating: 50V minimum

Mechanical Parameters (Must Match):

• Mounting type: Through hole
• Package style: Axial
• Lead style: Straight

Operating Conditions:

• Substitute must support the operating temperature range of the application. The original part operates -55°C to 200°C; substitutes must support at minimum the application's required temperature window within this range.

The SA305A103FAR from KYOCERA AVX meets all electrical matching criteria and maintains axial through-hole compatibility. Physical dimensions differ slightly, but both components are standard axial form factors suitable for through-hole PCB assembly.

Parameter Comparison

*Operating temperature range note: The SA305A103FAR operates to 125°C maximum, compared to the HT14BN103FN's 200°C maximum. Substitution is valid for applications operating within the -55°C to 125°C window.

Engineering Selection Recommendations

SA305A103FAR (KYOCERA AVX) as Primary Substitute:

The SA305A103FAR is the recommended equivalent for the obsolete HT14BN103FN based on the following factors:

1. Electrical Equivalence: All critical electrical parameters match exactly—capacitance, voltage rating, tolerance, and temperature coefficient (C0G/NP0).

2. Mechanical Compatibility: Both components are through-hole axial capacitors with straight leads, ensuring direct PCB footprint compatibility. The SA305A103FAR features a more compact physical profile (0.150" diameter × 0.290" length versus 0.155" × 0.400"), which provides layout flexibility without compromising electrical performance.

3. Product Status: The SA305A103FAR is an active product with current manufacturing and availability (843 units in stock), eliminating obsolescence risk associated with the HT14BN103FN.

4. Compliance and Certifications: The SA305A103FAR is RoHS3 compliant and REACH unaffected, meeting modern regulatory requirements.

5. Temperature Range Consideration: The SA305A103FAR operates from -55°C to 125°C. This substitution is appropriate for applications requiring operation within this range. Applications requiring sustained operation above 125°C must retain the original HT14BN103FN or identify alternative high-temperature-rated components.

Frequently Asked Questions (FAQ)

Q: Can the SA305A103FAR directly replace the HT14BN103FN in all applications?

A: The SA305A103FAR is electrically and mechanically equivalent for applications operating within -55°C to 125°C. Applications requiring operation above 125°C require components rated to higher temperatures. Verify your application's maximum operating temperature before substitution.

Q: Why do the physical dimensions differ between these two parts?

A: Both components are standard axial ceramic capacitors with identical electrical specifications. The SA305A103FAR uses a more compact form factor (0.150" diameter × 0.290" length) compared to the HT14BN103FN (0.155" diameter × 0.400" length). This dimensional difference does not affect electrical performance and typically provides improved PCB layout flexibility. Verify PCB footprint spacing accommodates the slightly shorter length.

Q: Are there any compliance differences between these parts?

A: The SA305A103FAR is RoHS3 compliant and REACH unaffected. The HT14BN103FN, being an obsolete part, may not carry current compliance certifications. For new designs or products subject to RoHS/REACH regulations, the SA305A103FAR is the appropriate choice.

Q: What is the significance of the C0G/NP0 temperature coefficient?

A: C0G (also designated NP0) indicates a temperature coefficient of 0 ppm/°C, meaning capacitance remains stable across the operating temperature range. This specification is critical for precision applications and must be maintained in any substitute component. Both the HT14BN103FN and SA305A103FAR meet this requirement.

Q: Can I use a capacitor with higher voltage rating as a substitute?

A: Yes. A 50V-rated capacitor can be substituted with a higher voltage-rated component (such as 100V or 250V) of identical capacitance and tolerance, provided physical dimensions and mounting type remain compatible. Higher voltage ratings do not degrade performance in lower-voltage applications.

Q: How do I verify PCB compatibility before substitution?

A: Confirm that your PCB footprint accommodates the SA305A103FAR's dimensions (0.150" diameter × 0.290" length). The axial lead spacing and through-hole mounting requirements are identical to the original part. If your PCB was designed with tight spacing around the original component's larger form factor, verify clearance before assembly.