LD033C102KAB2A Equivalent & Substitute Parts

Part Overview

The LD033C102KAB2A is a 1000 pF ceramic capacitor manufactured by KYOCERA AVX, rated at 25V with X7R temperature coefficient in 0603 (1608 Metric) surface mount package. This part is active in production with 1163 units currently in stock. Substitute parts are necessary to address voltage rating requirements, tolerance specifications, manufacturer availability, or inventory constraints while maintaining functional equivalence in general purpose applications.

Key Parameters

Parameter	Value
Capacitance	1000 pF
Tolerance	±10%
Voltage Rating	25V
Temperature Coefficient	X7R
Package / Case	0603 (1608 Metric)
Mounting Type	Surface Mount, MLCC
Operating Temperature Range	-55°C ~ 125°C
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution logic for the LD033C102KAB2A is based on the following allowed parameters:

Critical Parameters (Must Match):

Capacitance: 1000 pF
Temperature Coefficient: X7R
Package / Case: 0603 (1608 Metric)
Mounting Type: Surface Mount, MLCC
Operating Temperature Range: -55°C ~ 125°C
Moisture Sensitivity Level: 1 (Unlimited)

Flexible Parameters (May Vary):

Voltage Rating: Can be equal to or higher than 25V
Tolerance: Can be ±10% or tighter (±5%)
Manufacturer: KYOCERA AVX or KEMET

Substitute parts are grouped into two categories: voltage-rated upgrades from KYOCERA AVX (LD series) and cross-manufacturer alternatives from KEMET (C0603C series). All substitutes maintain identical capacitance, temperature coefficient, package dimensions, and operating temperature specifications.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Inventory (Pcs)
LD033C102KAB2A	KYOCERA AVX	1000 pF	±10%	25V	X7R	0603 (1608 Metric)	1163
LD031C102KAB2A	KYOCERA AVX	1000 pF	±10%	100V	X7R	0603 (1608 Metric)	4577
LD032C102KAB2A	KYOCERA AVX	1000 pF	±10%	200V	X7R	0603 (1608 Metric)	4000
LD035C102KAB2A	KYOCERA AVX	1000 pF	±10%	50V	X7R	0603 (1608 Metric)	4460
C0603C102J5RAL7867	KEMET	1000 pF	±5%	50V	X7R	0603 (1608 Metric)	5029
C0603C102K1RAL7867	KEMET	1000 pF	±10%	100V	X7R	0603 (1608 Metric)	998
C0603C102K5RAL7867	KEMET	1000 pF	±10%	50V	X7R	0603 (1608 Metric)	7105

Engineering Selection Recommendations

KYOCERA AVX LD Series Substitutes:

LD031C102KAB2A (100V rating) and LD032C102KAB2A (200V rating) provide higher voltage margins for the same capacitance and tolerance. These are direct manufacturer upgrades maintaining identical package geometry and thermal characteristics. LD035C102KAB2A (50V rating) offers a moderate voltage increase with higher inventory availability (4460 units).

KEMET C0603C Series Substitutes:

C0603C102K5RAL7867 (50V, ±10%) and C0603C102K1RAL7867 (100V, ±10%) provide cross-manufacturer alternatives with equivalent electrical performance. C0603C102J5RAL7867 (50V, ±5%) offers improved tolerance specification at 50V rating. All KEMET parts maintain 0603 package compatibility and X7R temperature coefficient.

Compliance Considerations:

All KYOCERA AVX LD series parts are RoHS non-compliant and REACH Affected. KEMET C0603C series parts are RoHS non-compliant and REACH Unaffected. Selection should account for end-application compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can LD031C102KAB2A replace LD033C102KAB2A in a 25V circuit?

A: Yes. LD031C102KAB2A is rated at 100V, which exceeds the 25V requirement. The higher voltage rating provides additional safety margin. All other electrical parameters (capacitance, tolerance, temperature coefficient, package) are identical.

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

A: Both manufacturers provide 1000 pF X7R capacitors in 0603 package with identical operating temperature range and moisture sensitivity. KYOCERA AVX LD series maintains ±10% tolerance across all voltage ratings. KEMET C0603C series offers both ±10% and ±5% tolerance options. REACH compliance status differs between manufacturers.

Q: Can C0603C102J5RAL7867 (±5% tolerance) be used instead of LD033C102KAB2A (±10% tolerance)?

A: Yes. C0603C102J5RAL7867 has tighter tolerance (±5%), which is a superior specification. It is rated at 50V, exceeding the 25V requirement. Capacitance and package are identical.

Q: Are there physical dimension differences between KYOCERA AVX and KEMET 0603 packages?

A: Both manufacturers specify 0603 (1608 Metric) package with 0.063" L x 0.032" W dimensions for KYOCERA AVX and 0.063" L x 0.031" W for KEMET. Thickness specifications are 0.035" (0.90mm) for KYOCERA AVX and 0.034" (0.87mm) for KEMET. These minor variations are within standard 0603 package tolerances and do not affect PCB footprint compatibility.

Q: Which substitute offers the best inventory availability?

A: C0603C102K5RAL7867 (KEMET) has the highest inventory at 7105 units, followed by LD031C102KAB2A (KYOCERA AVX) at 4577 units.

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