1206J1000123KXT Equivalent & Substitute Parts Engineering Reference

Part Overview

Knowles Syfer 1206J1000123KXT is a general-purpose surface mount multilayer ceramic capacitor (MLCC) with 0.012 µF capacitance, 100V rated voltage, and X7R dielectric in a 1206 (3216 Metric) package. The part is supplied in Tape & Reel packaging and has an active status with RoHS3 compliance and REACH unaffected status.

Locating suitable alternative models is essential due to supply chain management, inventory optimization, multi-sourcing requirements, or unforeseen lead time fluctuations. All alternatives must meet the same electrical and mechanical parameters for proper functionality in general purpose applications.

Substiute Parts

1206J1000123KXT

Knowles SyferIn Stock: 7861206J1000123KXT Datasheet

Current PartRFQ

C1206C123K1RAC7800

KEMETIn Stock: 4780C1206C123K1RAC7800 Datasheet

DirectRFQ

KGM31BR72A123KT

KYOCERA AVXIn Stock: 21840KGM31BR72A123KT Datasheet

DirectRFQ

C1206C123KARAC7800

KEMETIn Stock: 988C1206C123KARAC7800 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped based strictly on functional equivalence in the following parameters:

• Capacitance: 0.012 µF
• Tolerance: ±10%
• Voltage Rating: ≥100V (only listed voltages permitted)
• Dielectric: X7R
• Package: 1206 (3216 Metric)
• Surface Mount, MLCC construction
• Operating Temperature: -55°C ~ 125°C
• Compliance Status: RoHS3 Compliant, REACH Unaffected, MSL 1 (Unlimited) where available

These parameters ensure that substitutable MLCCs are directly compatible without modification to the PCB design or circuit operation in the qualified application category.

Parameter Comparison

Engineering Selection Recommendations

All listed substitutes (C1206C123K1RAC7800, KGM31BR72A123KT, C1206C123KARAC7800) are active, RoHS3 Compliant, and REACH Unaffected, with MSL 1 (Unlimited). These conditions fully satisfy compliance and reliability requirements for multi-source selection based solely on product status and available certifications.

Frequently Asked Questions (FAQ)

Q1: What parameters are required for qualification as a substitute for 1206J1000123KXT?
A1: Capacitance (0.012 µF), tolerance (±10%), voltage rating (≥100V), dielectric type (X7R), package (1206), mounting type (Surface Mount, MLCC), operating temperature (-55°C ~ 125°C), and compliance status.

Q2: Can an MLCC rated above 100V be used as a substitute?
A2: Yes, C1206C123KARAC7800 is rated at 250V and matches all other parameters, making it suitable as an upgraded alternative.

Q3: What is the importance of package and size matching in direct MLCC substitution?
A3: The 1206 (3216 Metric) package and the specified dimensions (0.126" x 0.063" / 3.20mm x 1.60mm) must be identical for PCB compatibility and appropriate surface mounting.

Q4: Do all substitutes maintain the same compliance as the original?
A4: All substitute part numbers listed carry RoHS3 compliance, REACH Unaffected status, and an MSL of 1 (Unlimited), equivalent to the main part.

Q5: Are there any feature or application limitations to consider?
A5: All substitutes are specified for general purpose or bypass/decoupling use. Features or ratings fields are not populated in the provided data and are therefore not a consideration in this equivalency assessment.