12103C335MAT2A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 12103C335MAT2A is a 3.3 µF ceramic capacitor manufactured by KYOCERA AVX, rated for 25V with X7R temperature coefficient and 1210 (3225 Metric) package form factor. This surface mount multilayer ceramic capacitor (MLCC) is designed for general purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when original inventory is unavailable, when design requirements permit higher voltage ratings, or when alternative manufacturers' components meet the same electrical and mechanical specifications.

Substiute Parts

12103C335MAT2A

KYOCERA AVXIn Stock: 107812103C335MAT2A Datasheet

Current PartRFQ

12105C335MAT2A

KYOCERA AVXIn Stock: 192812105C335MAT2A Datasheet

UpgradeRFQ

C3225X7R1E335M160AA

TDK CorporationIn Stock: 4220C3225X7R1E335M160AA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 12103C335MAT2A are qualified based on the following criteria:

Primary Substitution Criteria (Must Match):

• Capacitance value: 3.3 µF
• Tolerance: ±20%
• Temperature coefficient: X7R
• Package / Case: 1210 (3225 Metric)
• Mounting type: Surface Mount, MLCC
• Operating temperature range: -55°C to 125°C
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

Secondary Substitution Criteria (May Exceed):

• Voltage rating: Equal to or greater than 25V (higher ratings provide design margin)
• Physical dimensions: Must fit within or match the 1210 package envelope

The substitute parts listed below meet all primary criteria. Voltage rating upgrades are permissible when the application circuit can accommodate higher rated components without adverse effects.

Parameter Comparison

Engineering Selection Recommendations

12105C335MAT2A (KYOCERA AVX Upgrade): This part is a direct upgrade from the 12103C335MAT2A, maintaining identical physical dimensions, package form factor, and all electrical parameters except voltage rating, which is increased to 50V. Both parts are in active production status. This substitute provides enhanced design margin for applications where voltage stress is a consideration. Selection is appropriate for new designs and production environments requiring KYOCERA AVX components.

C3225X7R1E335M160AA (TDK Corporation Alternative): This part meets all electrical and mechanical substitution criteria with identical capacitance, tolerance, temperature coefficient, and operating temperature range. The part is manufactured by TDK Corporation and carries ROHS3 compliance. However, this part is designated "Not For New Designs," indicating it is in mature or end-of-life status. The maximum thickness is reduced to 1.80mm compared to 2.79mm for the main part, which may provide space advantages in height-constrained applications but requires verification of PCB layout compatibility. This substitute is suitable for legacy design support or replacement applications only.

Frequently Asked Questions (FAQ)

Q: Can 12105C335MAT2A be used as a direct replacement for 12103C335MAT2A?

A: Yes. The 12105C335MAT2A is a direct substitute with identical capacitance (3.3 µF), tolerance (±20%), temperature coefficient (X7R), package (1210), and physical dimensions. The voltage rating is increased from 25V to 50V, which does not prevent substitution and provides additional design margin.

Q: What is the difference between the main part and the TDK alternative?

A: The C3225X7R1E335M160AA from TDK Corporation matches all electrical specifications and package dimensions. The primary difference is the reduced maximum thickness (1.80mm versus 2.79mm), which may affect PCB layout compatibility. Additionally, this part carries a "Not For New Designs" status, limiting its use to legacy or replacement applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed—12103C335MAT2A, 12105C335MAT2A, and C3225X7R1E335M160AA—are ROHS3 compliant and carry unlimited moisture sensitivity level (MSL 1).

Q: Can I use a higher voltage rated capacitor in place of the 25V rated part?

A: Yes. The 12105C335MAT2A rated at 50V can be used in applications designed for the 25V part. Higher voltage ratings do not compromise functionality in circuits operating below the rated voltage and provide additional safety margin.

Q: What is the significance of the X7R temperature coefficient?

A: X7R indicates the capacitor maintains stable capacitance across the operating temperature range of -55°C to 125°C with minimal variation. All substitute parts share this specification, ensuring consistent performance across temperature extremes.

Q: Are there any physical installation considerations when substituting parts?

A: All substitute parts use the same 1210 (3225 Metric) package and identical length and width dimensions (3.20mm × 2.50mm). The C3225X7R1E335M160AA has a reduced thickness (1.80mm), which may provide clearance advantages but does not affect standard PCB assembly processes. Verify PCB layout compatibility if height constraints are critical.