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1812SC102MAT3A Ceramic Capacitor 1000pF 1.5kV X7R Equivalent & Substitute Parts
Part Overview
The 1812SC102MAT3A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 1000 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 stable performance 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). With 734 pieces in current stock and active product status, equivalent and substitute parts are identified to support design flexibility, inventory optimization, and application-specific requirements where voltage rating, tolerance, or temperature coefficient variations are acceptable.
Substiute Parts
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 |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the 1812SC102MAT3A are grouped based on the following allowable parameter variations:
Fixed Parameters (Must Match):
- Capacitance: 1000 pF
- Package / Case: 1812 (4532 Metric)
- Mounting Type: Surface Mount, MLCC
- Physical Dimensions: 0.181" L × 0.126" W (4.60mm × 3.20mm)
- Operating Temperature Range: -55°C to 125°C
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
Variable Parameters (Allowed to Differ):
- Voltage Rating: 1500V, 2000V, 2500V, or 3000V (higher voltage ratings are acceptable upgrades)
- Tolerance: ±20% or ±10% (tighter tolerance acceptable)
- Temperature Coefficient: X7R or C0G/NP0 (C0G/NP0 provides superior stability)
- Maximum Thickness: 0.071" to 0.110" (thickness increases with higher voltage ratings)
Substitutes are organized into upgrade categories (higher voltage ratings) and parametric equivalents (same voltage, different tolerance or temperature coefficient). All substitute parts maintain the same footprint and mounting compatibility while offering enhanced electrical performance or improved tolerance specifications.
Parameter Comparison
| Part Number | Manufacturer | Capacitance | Tolerance | Voltage Rating | Temp Coeff | Max Thickness | Inventory | Packaging |
|---|---|---|---|---|---|---|---|---|
| 1812SC102MAT3A | KYOCERA AVX | 1000 pF | ±20% | 1500V | X7R | 0.071" (1.80mm) | 734 Pcs | Cut Tape & Digi-Reel |
| 1812SC102MAT1A | KYOCERA AVX | 1000 pF | ±20% | 1500V | X7R | 0.071" (1.80mm) | 1080 Pcs | Tape & Reel |
| 1812GC102KAT1A | KYOCERA AVX | 1000 pF | ±10% | 2000V | X7R | 0.071" (1.80mm) | 2100 Pcs | Cut Tape & Digi-Reel |
| 1812GC102MAT1A | KYOCERA AVX | 1000 pF | ±20% | 2000V | X7R | 0.071" (1.80mm) | 14533 Pcs | Tape & Reel |
| 1812HC102KAT1A | KYOCERA AVX | 1000 pF | ±10% | 3000V | X7R | 0.087" (2.20mm) | 2400 Pcs | Tape & Reel |
| 1812WC102KAT1A | KYOCERA AVX | 1000 pF | ±10% | 2500V | X7R | 0.110" (2.80mm) | 2778 Pcs | Tape & Reel |
| KGM43ER73D102KV | KYOCERA AVX | 1000 pF | ±10% | 2000V | X7R | 0.071" (1.80mm) | 1812 Pcs | Tape & Reel |
| KGM43ER73D102MV | KYOCERA AVX | 1000 pF | ±20% | 2000V | X7R | 0.071" (1.80mm) | 6649 Pcs | Tape & Reel |
| KGM43FCG3D102JV | KYOCERA AVX | 1000 pF | ±5% | 2000V | C0G/NP0 | 0.087" (2.21mm) | 6987 Pcs | Tape & Reel |
| KGM43FR73U102KV | KYOCERA AVX | 1000 pF | ±10% | 3000V | X7R | 0.087" (2.21mm) | 3091 Pcs | Tape & Reel |
| KGM43FR73U102MV | KYOCERA AVX | 1000 pF | ±20% | 3000V | X7R | 0.087" (2.21mm) | 1476 Pcs | Tape & Reel |
Engineering Selection Recommendations
All listed substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating, ensuring regulatory and environmental compatibility with the original 1812SC102MAT3A.
For Direct Replacement (Same Electrical Performance): 1812SC102MAT1A is a parametric equivalent with identical electrical specifications (1000 pF, ±20%, 1500V, X7R) and the same 0.071" maximum thickness. This part differs only in packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and is suitable for applications where packaging preference or inventory availability drives the selection.
For Voltage Margin Enhancement: Parts rated at 2000V (1812GC102KAT1A, 1812GC102MAT1A, KGM43ER73D102KV, KGM43ER73D102MV) provide 33% higher voltage headroom than the original 1500V rating while maintaining the same 1000 pF capacitance and 1812 package footprint. These are appropriate for designs requiring increased safety margin or operating in higher voltage stress environments. The 1812GC102MAT1A offers the highest inventory availability (14533 pieces) among 2000V options.
For Tighter Tolerance Requirements: Parts with ±10% tolerance (1812GC102KAT1A, 1812HC102KAT1A, 1812WC102KAT1A, KGM43ER73D102KV, KGM43FR73U102KV, KGM43FCG3D102JV) replace the ±20% tolerance of the original part. These are suitable for precision circuits where capacitance accuracy is critical.
For Superior Temperature Stability: KGM43FCG3D102JV features C0G/NP0 temperature coefficient with ±5% tolerance, providing superior capacitance stability across the -55°C to 125°C operating range compared to the X7R temperature coefficient of the original part. This part is rated at 2000V and carries 6987 pieces in inventory.
For Maximum Voltage Rating: Parts rated at 3000V (1812HC102KAT1A, KGM43FR73U102KV, KGM43FR73U102MV) provide the highest voltage protection available in this capacitance and package size. These parts have increased thickness (0.087" to 0.110") due to higher voltage requirements and are suitable for applications with stringent overvoltage protection needs.
Frequently Asked Questions (FAQ)
Q: Can I use a higher voltage-rated substitute in place of the 1812SC102MAT3A? A: Yes. Higher voltage ratings (2000V, 2500V, 3000V) are direct functional upgrades. The capacitance (1000 pF), package footprint (1812), and mounting type remain identical. Higher voltage ratings provide additional safety margin and are electrically compatible with circuits designed for 1500V operation.
Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R provides ±15% capacitance change over the -55°C to 125°C temperature range. C0G/NP0 provides superior stability with ±0.3% per °C, resulting in minimal capacitance drift across temperature extremes. Select C0G/NP0 (KGM43FCG3D102JV) for precision timing, filtering, or resonant circuits where temperature stability is critical.
Q: Does the increased thickness of higher voltage parts affect PCB layout? A: The 1812 package footprint (0.181" L × 0.126" W) remains constant across all substitutes. Maximum thickness varies from 0.071" (1500V and 2000V parts) to 0.110" (2500V parts). Verify PCB clearance above the component if height-constrained applications exist. Standard PCB design typically accommodates this variation without layout modification.
Q: Are all substitute parts ROHS3 compliant and REACH unaffected? A: Yes. All listed substitute parts carry ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the original 1812SC102MAT3A. MSL 1 (unlimited) moisture sensitivity applies to all parts, requiring no special handling or storage conditions.
Q: What is the difference between Cut Tape & Digi-Reel and Tape & Reel packaging? A: Both are surface-mount compatible formats. Cut Tape & Digi-Reel is suitable for lower-volume applications and manual assembly. Tape & Reel is optimized for high-volume automated pick-and-place assembly. Electrical performance is identical; selection depends on assembly process and volume requirements.
Q: Can I substitute a ±20% tolerance part with a ±10% tolerance part? A: Yes. Tighter tolerance (±10%) is a performance upgrade and is compatible with circuits designed for ±20% tolerance. The actual capacitance value will be more precise, which is beneficial for most applications. Reverse substitution (±10% with ±20%) is not recommended for precision circuits.
Q: Which substitute offers the best inventory availability? A: 1812GC102MAT1A (14533 pieces) offers the highest inventory among 2000V-rated substitutes. KGM43FCG3D102JV (6987 pieces) is the most available C0G/NP0 option. 1812SC102MAT1A (1080 pieces) is the most available parametric equivalent with identical 1500V rating.
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