1808SC102MAT3A Equivalent & Substitute Parts

Part Overview

The 1808SC102MAT3A is a 1000 pF ±20% 1500V (1.5kV) ceramic capacitor manufactured by KYOCERA AVX in the 1808 (4520 Metric) package. This high-voltage surface-mount multilayer ceramic capacitor (MLCC) operates across -55°C to 125°C with X7R temperature coefficient characteristics. The part is active and ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified when design requirements allow for variations in voltage rating, tolerance, or packaging format while maintaining the same capacitance value, package size, temperature coefficient, and operating temperature range.

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	1808 (4520 Metric)
Mounting Type	Surface Mount, MLCC
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 1808SC102MAT3A is determined by the following allowable parameter variations:

Voltage Rating Upgrades: Substitute parts may have higher voltage ratings (2kV, 2.5kV, or 3kV) while maintaining the same 1000 pF capacitance and 1808 package footprint. Higher voltage ratings provide additional design margin in high-voltage applications.

Tolerance Variations: Substitute parts with ±10% tolerance are acceptable where tighter capacitance tolerance is required or available. The original ±20% tolerance may also be matched in substitute selections.

Packaging Format: Substitute parts may be supplied in Cut Tape (CT) & Digi-Reel® or Tape & Reel (TR) formats. Packaging format does not affect electrical performance or board-level compatibility.

Manufacturer Selection: KYOCERA AVX, KEMET, and TDK Corporation parts meeting the above electrical and mechanical criteria are functionally equivalent.

Fixed Parameters (Non-Substitutable): Capacitance value (1000 pF), temperature coefficient (X7R), operating temperature range (-55°C to 125°C), package size (1808 / 4520 Metric), and mounting type (Surface Mount, MLCC) must remain constant.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temp Coeff	Package	Thickness (Max)	RoHS Status	MSL
1808SC102MAT3A	KYOCERA AVX	1000 pF	±20%	1500V	X7R	1808	0.071" (1.80mm)	ROHS3	1
1808SC102KAT1A	KYOCERA AVX	1000 pF	±10%	1500V	X7R	1808	0.071" (1.80mm)	ROHS3	1
1808GC102MAT1A	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	0.071" (1.80mm)	ROHS3	1
1808GC102KAT1A	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	0.071" (1.80mm)	ROHS3	1
1808WC102KAT1A	KYOCERA AVX	1000 pF	±10%	2500V	X7R	1808	0.087" (2.20mm)	ROHS3	1
1808HC102KAT1A	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	0.087" (2.20mm)	ROHS3	1
KGM42CR73D102KY	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1808	0.087" (2.21mm)	ROHS3	1
KGM42CR73D102MY	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1808	0.087" (2.21mm)	ROHS3	1
KGM42CR73U102KY	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1808	0.087" (2.21mm)	ROHS3	1
C1808C102KGRAC7800	KEMET	1000 pF	±10%	2000V	X7R	1808	0.069" (1.75mm)	ROHS3	1
C4520X7R3D102K130KA	TDK Corporation	1000 pF	±10%	2000V	X7R	1808	0.059" (1.50mm)	ROHS3	1

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance. Selection between equivalent parts depends on application-specific voltage margin requirements and available inventory.

For applications requiring the original 1500V rating with matching ±20% tolerance, the 1808SC102KAT1A provides an equivalent electrical specification with improved tolerance (±10%) in the same package and thickness profile.

For applications permitting voltage rating increases, 2000V-rated parts (1808GC102MAT1A, 1808GC102KAT1A, KGM42CR73D102KY, KGM42CR73D102MY, C1808C102KGRAC7800, C4520X7R3D102K130KA) are suitable direct substitutes. The 2000V rating provides 33% additional voltage margin over the original 1500V specification.

For applications requiring maximum voltage margin, 2500V-rated (1808WC102KAT1A) and 3000V-rated parts (1808HC102KAT1A, KGM42CR73U102KY) are available. These higher-voltage options increase component thickness, which must be verified against PCB assembly constraints.

Cross-manufacturer substitution is supported. KEMET C1808C102KGRAC7800 and TDK C4520X7R3D102K130KA are electrically and mechanically compatible alternatives to KYOCERA AVX parts at the 2000V rating.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 1808SC102MAT3A with a higher voltage-rated part?

A: Yes. Parts rated at 2000V, 2500V, or 3000V are direct substitutes provided the 1000 pF capacitance, X7R temperature coefficient, 1808 package, and -55°C to 125°C operating range are maintained. Higher voltage ratings provide additional design margin in high-voltage circuits.

Q: What is the difference between ±20% and ±10% tolerance parts?

A: Tolerance specifies the allowable deviation of actual capacitance from the nominal 1000 pF value. ±20% tolerance allows deviation from 800 pF to 1200 pF. ±10% tolerance allows deviation from 900 pF to 1100 pF. Applications requiring tighter capacitance control should specify ±10% tolerance parts.

Q: Are KYOCERA AVX, KEMET, and TDK parts interchangeable?

A: Yes, provided electrical specifications (capacitance, voltage, tolerance, temperature coefficient) and mechanical specifications (package size, thickness) match. All listed parts meet these criteria at their respective voltage ratings and are ROHS3 compliant with MSL 1 rating.

Q: Does packaging format (Tape & Reel vs. Cut Tape) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly logistics. Electrical and mechanical performance is identical between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats of the same part number.

Q: What is the maximum thickness constraint for the 1808 package?

A: Standard 1808 parts at 1500V and 2000V ratings have maximum thickness of 0.071" (1.80mm). Higher voltage ratings (2500V and 3000V) increase thickness to 0.087" (2.20mm) or 0.087" (2.21mm). PCB assembly equipment and design constraints must accommodate the selected thickness.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), matching the original 1808SC102MAT3A specification.

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