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1808AC102MATBE Equivalent & Substitute Parts
Part Overview
The 1808AC102MATBE is a 1000 pF ±20% 1000V (1kV) ceramic capacitor with X7R temperature coefficient in 1808 (4520 Metric) surface mount package manufactured by KYOCERA AVX. This high-voltage MLCC is designed for general-purpose applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part is active, ROHS3 compliant, and carries MSL 1 (Unlimited) moisture sensitivity rating. Equivalent and substitute parts are identified based on matching or upgraded electrical and mechanical parameters while maintaining compatibility with the 1808 package footprint.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 1000 pF |
| Tolerance | ±20% |
| Voltage Rating | 1000V (1kV) |
| Temperature Coefficient | X7R |
| Operating Temperature Range | -55°C to 125°C |
| Package / Case | 1808 (4520 Metric) |
| Mounting Type | Surface Mount, MLCC |
| Size | 0.181" L x 0.079" W (4.60mm x 2.00mm) |
| Thickness | 0.071" (1.80mm) |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the 1808AC102MATBE are grouped based on the following substitution criteria:
Primary Substitution Parameters:
- Capacitance: 1000 pF (fixed)
- Package / Case: 1808 (4520 Metric) (fixed)
- Mounting Type: Surface Mount, MLCC (fixed)
- Operating Temperature Range: -55°C to 125°C (fixed)
- RoHS Status: ROHS3 Compliant (fixed)
- MSL Rating: 1 (Unlimited) (fixed)
Variable Parameters Allowing Substitution:
- Tolerance: ±10% or ±20%
- Voltage Rating: 1000V, 1500V, 2000V, 2500V, or 3000V
- Temperature Coefficient: X7R or C0G/NP0
- Thickness: 0.071" (1.80mm) or 0.087" (2.20mm or 2.21mm)
- Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel®
Substitutes maintain identical capacitance and package footprint while offering improved tolerance (±10%), higher voltage ratings, or alternative temperature coefficients. Higher voltage ratings provide design margin and reliability enhancement. Tighter tolerance (±10%) improves circuit performance where capacitance precision is critical.
Parameter Comparison
| Part Number | Manufacturer | Capacitance | Tolerance | Voltage Rating | Temperature Coefficient | Thickness | Packaging | Inventory |
|---|---|---|---|---|---|---|---|---|
| 1808AC102MATBE | KYOCERA AVX | 1000 pF | ±20% | 1000V | X7R | 0.071" (1.80mm) | - | 737 Pcs |
| 1808AC102KAT1A | KYOCERA AVX | 1000 pF | ±10% | 1000V | X7R | 0.071" (1.80mm) | Tape & Reel (TR) | 2140 Pcs |
| 1808GC102KAT1A | KYOCERA AVX | 1000 pF | ±10% | 2000V | X7R | 0.071" (1.80mm) | Cut Tape (CT) & Digi-Reel® | 3294 Pcs |
| 1808GC102MAT1A | KYOCERA AVX | 1000 pF | ±20% | 2000V | X7R | 0.071" (1.80mm) | Cut Tape (CT) & Digi-Reel® | 6100 Pcs |
| 1808HC102KAT1A | KYOCERA AVX | 1000 pF | ±10% | 3000V | X7R | 0.087" (2.20mm) | Cut Tape (CT) & Digi-Reel® | 4597 Pcs |
| 1808SC102KAT1A | KYOCERA AVX | 1000 pF | ±10% | 1500V | X7R | 0.071" (1.80mm) | Tape & Reel (TR) | 5443 Pcs |
| 1808WC102KAT1A | KYOCERA AVX | 1000 pF | ±10% | 2500V | X7R | 0.087" (2.20mm) | Tape & Reel (TR) | 2200 Pcs |
| KGM42CCG3A102KY | KYOCERA AVX | 1000 pF | ±10% | 1000V | C0G, NP0 | 0.087" (2.21mm) | Tape & Reel (TR) | 1244 Pcs |
| KGM42CR73D102KY | KYOCERA AVX | 1000 pF | ±10% | 2000V | X7R | 0.087" (2.21mm) | Tape & Reel (TR) | 9025 Pcs |
| KGM42CR73D102MY | KYOCERA AVX | 1000 pF | ±20% | 2000V | X7R | 0.087" (2.21mm) | Tape & Reel (TR) | 2833 Pcs |
| KGM42CR73U102KY | KYOCERA AVX | 1000 pF | ±10% | 3000V | X7R | 0.087" (2.21mm) | Tape & Reel (TR) | 5700 Pcs |
Engineering Selection Recommendations
All substitute parts listed maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) rating, ensuring regulatory and environmental compatibility with the original 1808AC102MATBE specification.
Direct Replacement (Same Voltage, Improved Tolerance): 1808AC102KAT1A provides identical 1000V rating with tighter ±10% tolerance in Tape & Reel packaging, suitable for applications requiring improved capacitance accuracy.
Voltage-Upgraded Substitutes (Same Tolerance Class): 1808GC102MAT1A maintains ±20% tolerance with 2000V rating, doubling the voltage margin. 1808SC102KAT1A offers 1500V intermediate rating with ±10% tolerance. These upgrades provide enhanced reliability in high-voltage stress environments.
High-Voltage Alternatives (±10% Tolerance): 1808GC102KAT1A (2000V), 1808WC102KAT1A (2500V), and 1808HC102KAT1A (3000V) deliver progressively higher voltage ratings with ±10% tolerance, accommodating designs requiring superior voltage headroom and tighter capacitance control.
Temperature Coefficient Variant: KGM42CCG3A102KY substitutes C0G/NP0 temperature coefficient for X7R, providing superior temperature stability where capacitance drift must be minimized across the -55°C to 125°C range.
KGM Series High-Voltage Options: KGM42CR73D102KY (2000V, ±10%), KGM42CR73D102MY (2000V, ±20%), and KGM42CR73U102KY (3000V, ±10%) represent the KGM - HV series with increased thickness (0.087" / 2.21mm), offering enhanced voltage performance and mechanical robustness.
Frequently Asked Questions (FAQ)
Q: Can 1808AC102KAT1A directly replace 1808AC102MATBE in my circuit? A: Yes. Both parts share identical 1000 pF capacitance, 1000V voltage rating, X7R temperature coefficient, and 1808 package footprint. The primary difference is tolerance: 1808AC102KAT1A offers ±10% versus ±20% on the original. This represents an improvement in capacitance accuracy with no circuit redesign required.
Q: What is the benefit of selecting a higher voltage-rated substitute? A: Higher voltage ratings (1500V, 2000V, 2500V, 3000V) provide increased design margin and stress relief on the dielectric material, extending component lifetime and improving reliability in high-voltage applications. The capacitance value remains 1000 pF regardless of voltage rating.
Q: Are KGM series parts compatible with 1808AC102MATBE footprints? A: KGM series parts use the same 1808 (4520 Metric) package and footprint. However, KGM42CCG3A102KY, KGM42CR73D102KY, KGM42CR73D102MY, and KGM42CR73U102KY have increased thickness (0.087" / 2.21mm versus 0.071" / 1.80mm). Verify PCB assembly clearance before substitution.
Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R provides ±15% capacitance change across -55°C to 125°C. C0G/NP0 delivers superior stability with minimal drift. KGM42CCG3A102KY (C0G/NP0) is selected when temperature-compensated circuits or precision timing applications require tighter capacitance control.
Q: Does packaging format (Tape & Reel vs. Cut Tape) affect electrical performance? A: No. Packaging format affects only handling, storage, and assembly logistics. Electrical specifications remain identical. Select based on manufacturing equipment compatibility and inventory management requirements.
Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the regulatory profile of 1808AC102MATBE.
Q: Which substitute offers the best balance of voltage margin and tolerance? A: 1808GC102KAT1A (2000V, ±10%) provides doubled voltage rating with improved tolerance, suitable for general high-voltage applications. For maximum voltage headroom, 1808HC102KAT1A or KGM42CR73U102KY (3000V, ±10%) are recommended.
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