1812SC102MAT3A Equivalent & Substitute Parts

Part Overview

The 1812SC102MAT3A is a 1000 pF ±20% 1500V (1.5kV) ceramic capacitor manufactured by KYOCERA AVX in 1812 (4532 Metric) package format with X7R temperature coefficient. This high-voltage 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 ROHS3 compliant, REACH unaffected, and carries MSL 1 (unlimited moisture sensitivity level) rating. With 1039 pieces in current inventory and active product status, substitute parts are identified to provide options for higher voltage ratings, improved tolerance specifications, or alternative packaging configurations while maintaining core electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Capacitance	1000 pF
Tolerance	±20%
Voltage Rating	1500V (1.5kV)
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	1812 (4532 Metric)
Mounting Type	Surface Mount, MLCC
Physical Dimensions	0.181" L × 0.126" W (4.60mm × 3.20mm)
Maximum Thickness	0.071" (1.80mm)
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 1812SC102MAT3A is determined by the following allowable parameter variations:

Fixed Parameters (Must Match):

Capacitance: 1000 pF
Package / Case: 1812 (4532 Metric)
Mounting Type: Surface Mount, MLCC
Operating Temperature Range: -55°C to 125°C
RoHS Status: ROHS3 Compliant
MSL Rating: 1 (Unlimited)

Variable Parameters (Substitution Basis):

Voltage Rating: May increase from 1500V to 2000V, 2500V, or 3000V
Tolerance: May improve from ±20% to ±10% or ±5%
Temperature Coefficient: May change from X7R to C0G/NP0
Packaging Format: May change from standard cut tape to tape & reel configurations
Physical Thickness: May increase with higher voltage ratings

Substitute parts are grouped into three categories: upgrade parts with higher voltage ratings and improved tolerances, parametric equivalents with identical electrical specifications but different packaging, and alternative temperature coefficient options for precision applications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temp Coeff	Package	Thickness (Max)	Inventory
1812SC102MAT3A	KYOCERA AVX	1000 pF	±20%	1500V	X7R	1812	0.071"	1039 Pcs
1812GC102KAT1A	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1812	0.071"	2100 Pcs
1812GC102MAT1A	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1812	0.071"	14533 Pcs
1812HC102KAT1A	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1812	0.087"	2400 Pcs
1812WC102KAT1A	KYOCERA AVX	1000 pF	±10%	2500V	X7R	1812	0.110"	2778 Pcs
KGM43ER73D102KV	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1812	0.071"	1812 Pcs
KGM43ER73D102MV	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1812	0.071"	6649 Pcs
KGM43FCG3D102JV	KYOCERA AVX	1000 pF	±5%	2000V	C0G/NP0	1812	0.087"	6987 Pcs
KGM43FR73U102KV	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1812	0.087"	3091 Pcs
KGM43FR73U102MV	KYOCERA AVX	1000 pF	±20%	3000V	X7R	1812	0.087"	1476 Pcs
1812SC102MAT1A	KYOCERA AVX	1000 pF	±20%	1500V	X7R	1812	0.071"	1080 Pcs

Engineering Selection Recommendations

Selection among substitute parts is based on application voltage requirements, tolerance specifications, and physical space constraints:

For applications requiring 1500V rating with ±20% tolerance: The parametric equivalent 1812SC102MAT1A provides identical electrical specifications with tape & reel packaging, offering higher inventory availability (1080 Pcs) compared to the original cut tape format.

For applications permitting 2000V rating: The 1812GC102MAT1A offers the same ±20% tolerance with significantly higher inventory (14533 Pcs) and maintains the 0.071" thickness profile. The 1812GC102KAT1A provides improved ±10% tolerance at the same voltage rating. The KGM43ER73D102MV and KGM43ER73D102KV from the KGM HV series provide equivalent 2000V performance with active product status and robust inventory levels.

For applications requiring improved tolerance (±10%): The 1812GC102KAT1A, 1812WC102KAT1A, and KGM43ER73D102KV all deliver ±10% tolerance specifications while maintaining X7R temperature coefficient and 1812 package compatibility.

For applications requiring higher voltage margins (2500V or 3000V): The 1812WC102KAT1A (2500V, ±10%) and 1812HC102KAT1A or KGM43FR73U102KV (3000V, ±10%) provide enhanced voltage headroom. Note that 3000V rated parts exhibit increased thickness (0.087" to 0.110") due to dielectric requirements.

For precision applications requiring C0G/NP0 temperature coefficient: The KGM43FCG3D102JV delivers ±5% tolerance with C0G/NP0 stability at 2000V rating, suitable for frequency-sensitive or temperature-compensated circuits.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, MSL 1 rating, and -55°C to 125°C operating temperature range. All parts are active products with current inventory availability.

Frequently Asked Questions (FAQ)

Q: Can I use a higher voltage-rated part as a direct substitute? A: Yes. A part with higher voltage rating (e.g., 2000V substitute for 1500V application) is electrically compatible and provides additional safety margin. Physical dimensions remain within the 1812 package envelope for parts rated up to 2500V. Parts rated 3000V exhibit increased thickness (0.087" minimum) and must be verified against PCB layout constraints.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R provides ±15% capacitance variation across -55°C to 125°C operating range, suitable for general-purpose applications. C0G/NP0 provides superior stability with ±30 ppm/°C, required for precision frequency-dependent circuits. The KGM43FCG3D102JV offers C0G/NP0 performance at 2000V with ±5% tolerance.

Q: Does tolerance improvement from ±20% to ±10% affect circuit performance? A: Tolerance improvement reduces capacitance variation and provides tighter circuit parameter control. Applications with strict capacitance requirements benefit from ±10% or ±5% tolerance parts. General-purpose applications typically accept ±20% tolerance.

Q: Are KGM series parts equivalent to standard 1812 parts? A: Yes. KGM43 series parts are KYOCERA AVX high-voltage (HV) variants in 1812 package format with identical footprint and mounting characteristics. They provide equivalent or superior electrical performance with active product status and robust inventory.

Q: What packaging format should I specify for production? A: The original 1812SC102MAT3A uses cut tape (CT) & Digi-Reel packaging. Tape & Reel (TR) format is standard for high-volume production. Both formats are compatible with automated pick-and-place equipment. Verify your assembly process requirements before selecting packaging variant.

Q: Can I substitute parts with different physical thickness? A: Physical thickness varies with voltage rating due to dielectric layer requirements. Parts up to 2000V maintain 0.071" thickness. Parts rated 2500V exhibit 0.110" thickness, and 3000V parts range from 0.087" to 0.110". Verify PCB clearance and component stacking height before substituting higher-voltage parts.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts carry ROHS3 compliance and REACH unaffected status, meeting environmental and regulatory requirements for commercial and industrial applications.

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