Equivalent & Substitute Parts for 1812J0100104FCT

Part Overview

The 1812J0100104FCT is a 0.1 µF ceramic capacitor manufactured by Knowles Syfer, rated at 10V with C0G/NP0 temperature coefficient and ±1% tolerance. This component is designed for general-purpose applications requiring stable capacitance across temperature variations. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the same package footprint.

Substiute Parts

1812J0100104FCT

Knowles SyferIn Stock: 11321812J0100104FCT Datasheet

Current PartRFQ

C1812C104F5GAC7800

KEMETIn Stock: 1864C1812C104F5GAC7800 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812J0100104FCT is determined by the following criteria:

• Capacitance value must be 0.1 µF
• Tolerance must be ±1%
• Temperature coefficient must be C0G or NP0
• Operating temperature range must encompass -55°C ~ 125°C
• Package must be 1812 (4532 Metric) for mechanical and electrical compatibility
• Mounting type must be Surface Mount, MLCC
• RoHS3 compliance required

The voltage rating may exceed the original specification (10V) without compromising substitution validity, as higher-rated components maintain backward compatibility in circuits designed for lower voltages. The substitute part C1812C104F5GAC7800 meets all mandatory criteria with a 50V rating, providing additional design margin.

Parameter Comparison

Engineering Selection Recommendations

Both the 1812J0100104FCT and C1812C104F5GAC7800 are active production components with identical RoHS3 and REACH compliance status. Selection between these parts should be based on circuit voltage requirements and available board space. The KEMET C1812C104F5GAC7800 provides a 50V rating, suitable for applications requiring higher voltage margin or future design flexibility. The Knowles Syfer 1812J0100104FCT operates at the specified 10V rating with standard thickness. Both components maintain identical capacitance, tolerance, temperature coefficient, and operating temperature specifications, ensuring functional equivalence in general-purpose applications.

Frequently Asked Questions (FAQ)

Q: Can C1812C104F5GAC7800 replace 1812J0100104FCT in all applications?

A: Yes, within the electrical and mechanical constraints of the circuit. The substitute part maintains identical capacitance (0.1 µF), tolerance (±1%), temperature coefficient (C0G/NP0), and operating temperature range (-55°C ~ 125°C). The higher voltage rating (50V vs. 10V) does not prevent substitution in 10V-rated circuits.

Q: Are there physical compatibility concerns between these parts?

A: Both parts use the 1812 (4532 Metric) package with identical length and width (0.177" x 0.126" / 4.50mm x 3.20mm). The KEMET part has reduced thickness (0.043" vs. 0.098"), which may provide board layout advantages in space-constrained designs.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both 1812J0100104FCT and C1812C104F5GAC7800 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity), ensuring equivalent environmental and regulatory compliance.

Q: What determines substitution eligibility for 0.1 µF ceramic capacitors in the 1812 package?

A: Substitution requires matching capacitance (0.1 µF), tolerance (±1%), temperature coefficient (C0G/NP0), operating temperature range (-55°C ~ 125°C), and package footprint (1812 / 4532 Metric). Voltage rating may exceed the original specification without compromising compatibility.