Equivalent & Substitute Parts for 1812SC682KAT3A

Part Overview

The 1812SC682KAT3A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 6800 pF, rated voltage of 1500V (1.5kV), and X7R temperature coefficient. This surface-mount multilayer ceramic capacitor (MLCC) in 1812 (4532 Metric) package is designed for general-purpose applications requiring high-voltage performance. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts may be required due to inventory availability, lead time considerations, or specific application requirements within the defined electrical and mechanical parameters.

Substiute Parts

1812SC682KAT3A\SB

KYOCERA AVXIn Stock: 11531812SC682KAT3A\SB Datasheet

Current PartRFQ

1812GC682KAT1A

KYOCERA AVXIn Stock: 127811812GC682KAT1A Datasheet

UpgradeRFQ

C1812C682KFRAC7800

KEMETIn Stock: 1209C1812C682KFRAC7800 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812SC682KAT3A is determined by the following critical parameters:

• Capacitance: Must be 6800 pF
• Tolerance: Must be ±10%
• Temperature Coefficient: Must be X7R
• Mounting Type: Must be Surface Mount, MLCC
• Package / Case: Must be 1812 (4532 Metric)
• Operating Temperature Range: Must support -55°C ~ 125°C
• RoHS Status: Must be ROHS3 Compliant
• Moisture Sensitivity Level: Must be MSL 1

The rated voltage may vary within acceptable limits for the application, provided all other electrical and mechanical parameters remain constant. Physical dimensions (length, width, thickness) must be compatible with the 1812 package specification.

Parameter Comparison

Engineering Selection Recommendations

1812GC682KAT1A (KYOCERA AVX Upgrade)

This part is functionally equivalent to the main part with an elevated rated voltage of 2000V (2kV) compared to the 1500V (1.5kV) specification. All other electrical parameters, physical dimensions, and compliance certifications remain identical. This part is suitable for applications where higher voltage margin is beneficial. Both parts are manufactured by KYOCERA AVX and maintain ROHS3 compliance and MSL 1 rating.

C1812C682KFRAC7800 (KEMET MFR Recommended)

This part matches the electrical specifications of the main part exactly, including the 1500V (1.5kV) rated voltage. It is manufactured by KEMET and maintains ROHS3 compliance and MSL 1 rating. Physical dimensions differ slightly: length is 0.177" (4.50mm) versus 0.181" (4.60mm), and thickness is significantly reduced to 0.071" (1.80mm) versus 0.110" (2.80mm). This part is suitable for space-constrained applications where reduced thickness is advantageous. All electrical and thermal characteristics remain compatible.

Frequently Asked Questions (FAQ)

Q: Can 1812GC682KAT1A be used as a direct replacement for 1812SC682KAT3A?

A: Yes. The 1812GC682KAT1A is electrically and mechanically compatible. It maintains identical capacitance, tolerance, temperature coefficient, operating temperature range, package dimensions, and compliance certifications. The higher rated voltage (2000V versus 1500V) provides additional voltage margin without affecting circuit performance.

Q: What are the key differences between C1812C682KFRAC7800 and the main part?

A: The C1812C682KFRAC7800 is manufactured by KEMET rather than KYOCERA AVX. Electrical specifications are identical. Physical dimensions differ: length is 0.177" (4.50mm) versus 0.181" (4.60mm), and thickness is 0.071" (1.80mm) versus 0.110" (2.80mm). All compliance certifications and thermal ratings remain equivalent.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed—1812SC682KAT3A, 1812GC682KAT1A, and C1812C682KFRAC7800—are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level).

Q: Can substitute parts be used interchangeably in PCB assembly?

A: Yes, provided the PCB layout accommodates the physical dimensions. The 1812GC682KAT1A has identical footprint dimensions to the main part. The C1812C682KFRAC7800 has slightly reduced length (0.177" versus 0.181") and significantly reduced thickness (0.071" versus 0.110"), which may be advantageous in space-constrained designs but requires layout verification.

Q: What is the operating temperature range for all substitute parts?

A: All parts operate across -55°C to 125°C with X7R temperature coefficient, ensuring stable capacitance performance across this range.