1812SC682KAT1A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1812SC682KAT1A is a 6800 pF ceramic capacitor manufactured by KYOCERA AVX with a rated voltage of 1500V (1.5kV) and X7R temperature coefficient. This Surface Mount MLCC (Multilayer Ceramic Capacitor) in 1812 (4532 Metric) package is designed for general-purpose high-voltage applications. The part is currently Active in product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical and mechanical parameters are maintained or enhanced within allowable tolerances for the application.

Substiute Parts

1812SC682KAT1A\SB

KYOCERA AVXIn Stock: 10761812SC682KAT1A\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 for the 1812SC682KAT1A is determined by the following critical parameters:

• Capacitance Value: Must be 6800 pF ±10%
• Temperature Coefficient: Must be X7R
• Mounting Type: Must be Surface Mount MLCC
• Package: Must be 1812 (4532 Metric)
• Operating Temperature Range: Must support -55°C ~ 125°C
• Voltage Rating: Must be equal to or greater than 1500V (1.5kV)
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

Two substitute parts meet these criteria:

1. 1812GC682KAT1A (KYOCERA AVX) - Upgrade substitute with enhanced voltage rating of 2000V (2kV)
2. C1812C682KFRAC7800 (KEMET) - Manufacturer-recommended equivalent with identical 1500V rating and additional Low ESL feature

Parameter Comparison

Engineering Selection Recommendations

1812GC682KAT1A (KYOCERA AVX Upgrade)

This substitute provides a voltage rating increase from 1500V to 2000V while maintaining all other electrical and mechanical specifications. The same manufacturer ensures consistent quality and reliability. This option is suitable for applications requiring enhanced voltage margin or where higher voltage tolerance is beneficial. Inventory availability is significantly higher (12,729 pcs vs. 1,016 pcs).

C1812C682KFRAC7800 (KEMET MFR Recommended)

This substitute maintains the original 1500V voltage rating with identical capacitance and tolerance specifications. The KEMET part includes a Low ESL feature and is available in the SMD Comm X7R HV series. 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). Both parts maintain ROHS3 compliance and MSL 1 rating. Inventory availability is 1,150 pcs.

Frequently Asked Questions (FAQ)

Q: Can 1812GC682KAT1A replace 1812SC682KAT1A in all applications?

A: Yes. The 1812GC682KAT1A maintains identical capacitance (6800 pF), tolerance (±10%), temperature coefficient (X7R), package (1812), and operating temperature range (-55°C ~ 125°C). The increased voltage rating (2000V vs. 1500V) is a direct upgrade that does not compromise compatibility.

Q: What is the difference between the KYOCERA AVX and KEMET substitutes?

A: Both maintain the 6800 pF capacitance and 1500V rating. The KEMET C1812C682KFRAC7800 features Low ESL performance and reduced thickness (1.80mm vs. 2.80mm), making it suitable for space-constrained designs. The KYOCERA AVX 1812GC682KAT1A offers higher voltage (2000V) for enhanced margin.

Q: Are there physical compatibility concerns with the KEMET substitute?

A: The KEMET part has a slightly shorter length (4.50mm vs. 4.60mm) and significantly reduced thickness (1.80mm vs. 2.80mm). These dimensional differences are within the 1812 package specification and do not affect PCB footprint compatibility. Verify board layout clearance for the reduced thickness if height-sensitive applications are involved.

Q: Do all substitutes maintain compliance certifications?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity). All are classified under ECCN EAR99 and HTSUS 8532.24.0020.

Q: Which substitute should be selected for new designs?

A: Selection depends on application requirements. For voltage margin enhancement, use 1812GC682KAT1A. For space-constrained or low-ESL-critical applications, use C1812C682KFRAC7800. Both are Active products with established inventory.