Equivalent & Substitute Parts for 0805J0250331MXT

Part Overview

The 0805J0250331MXT is a 330 pF ceramic capacitor manufactured by Knowles Syfer with a rated voltage of 25V and X7R temperature coefficient. This surface mount multilayer ceramic capacitor (MLCC) in 0805 (2012 Metric) package is designed for general purpose applications. The part is active and in stock with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching capacitance, package, mounting type, and operating temperature range while allowing variations in voltage rating, tolerance, and temperature coefficient where circuit requirements permit.

Key Parameters

Parameter	Value
Manufacturer Part Number	0805J0250331MXT
Manufacturer	Knowles Syfer
Capacitance	330 pF
Voltage Rating	25V
Tolerance	±20%
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount, MLCC
Size	0.079" L x 0.049" W (2.00mm x 1.25mm)
Thickness (Max)	0.051" (1.30mm)
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the 0805J0250331MXT are qualified based on the following criteria:

Mandatory Matching Parameters:

Capacitance: 330 pF (exact match required)
Package / Case: 0805 (2012 Metric)
Mounting Type: Surface Mount, MLCC
Operating Temperature Range: -55°C to 125°C minimum

Allowable Variations:

Voltage Rating: Equal to or greater than 25V
Tolerance: ±1%, ±5%, ±10%, or ±20%
Temperature Coefficient: X7R, C0G/NP0 (1B), or equivalent
Thickness: Up to 0.051" (1.30mm)
RoHS Status: ROHS3 Compliant
MSL Rating: 1 (Unlimited)

Substitutes are grouped by voltage rating upgrade (50V, 100V) and temperature coefficient type (X7R or C0G/NP0), as these represent the primary design variations available while maintaining functional compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Temperature Coefficient	Package	Thickness (Max)	RoHS Status	Product Status
0805J0250331MXT	Knowles Syfer	330 pF	25V	±20%	X7R	0805	0.051" (1.30mm)	ROHS3	Active
0805J1000331JCT	Knowles Syfer	330 pF	100V	±5%	C0G, NP0 (1B)	0805	0.051" (1.30mm)	ROHS3	Active
C0805C331J1RAC7800	KEMET	330 pF	100V	±5%	X7R	0805	0.035" (0.88mm)	ROHS3	Active
C0805C331K1RAC7800	KEMET	330 pF	100V	±10%	X7R	0805	0.035" (0.88mm)	ROHS3	Active
CC0805JRX7R9BB331	YAGEO	330 pF	50V	±5%	X7R	0805	0.028" (0.70mm)	ROHS3	Active
CC0805KRX7R0BB331	YAGEO	330 pF	100V	±10%	X7R	0805	0.028" (0.70mm)	ROHS3	Active
CC0805KRX7R9BB331	YAGEO	330 pF	50V	±10%	X7R	0805	0.024" (0.60mm)	ROHS3	Active
KGM21NR71H331JT	KYOCERA AVX	330 pF	50V	±5%	X7R	0805	0.039" (1.00mm)	ROHS3	Active
0805D331J101KHT	Knowles Novacap	330 pF	100V	±5%	C0G, NP0	0805	0.054" (1.37mm)	ROHS3	Active
C0805C331F1GAC7800	KEMET	330 pF	100V	±1%	C0G, NP0	0805	0.035" (0.88mm)	ROHS3	Active
C0805C331F5GAC7800	KEMET	330 pF	50V	±1%	C0G, NP0	0805	0.035" (0.88mm)	ROHS3	Active

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance, ensuring continued availability and regulatory conformance. Selection among substitutes depends on circuit voltage requirements and tolerance specifications:

For 25V circuits: The original 0805J0250331MXT remains the direct match. If unavailable, 50V-rated substitutes (CC0805JRX7R9BB331, CC0805KRX7R9BB331, KGM21NR71H331JT, C0805C331F5GAC7800) provide direct functional replacement with voltage margin.

For improved tolerance: C0805C331F1GAC7800 and C0805C331F5GAC7800 offer ±1% tolerance with C0G/NP0 temperature coefficient, suitable for precision applications requiring stable capacitance across temperature.

For voltage-upgraded designs: 100V-rated parts (0805J1000331JCT, C0805C331J1RAC7800, C0805C331K1RAC7800, CC0805KRX7R0BB331, 0805D331J101KHT, C0805C331F1GAC7800) provide increased voltage margin for circuits operating near 25V nominal.

For X7R temperature coefficient: Parts maintaining X7R specification (C0805C331J1RAC7800, C0805C331K1RAC7800, CC0805JRX7R9BB331, CC0805KRX7R0BB331, CC0805KRX7R9BB331, KGM21NR71H331JT) match the original temperature behavior.

For C0G/NP0 temperature coefficient: Parts with C0G/NP0 specification (0805J1000331JCT, 0805D331J101KHT, C0805C331F1GAC7800, C0805C331F5GAC7800) provide superior temperature stability and lower capacitance drift.

All substitutes are available in active inventory with unlimited moisture sensitivity level (MSL 1), eliminating bake-out requirements for storage and handling.

Frequently Asked Questions (FAQ)

Q: Can I use a 50V-rated capacitor in a 25V circuit? A: Yes. A 50V-rated capacitor is electrically compatible with a 25V circuit. The voltage rating indicates the maximum voltage the capacitor can safely withstand; operating at lower voltage presents no functional issue.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R capacitors exhibit ±15% capacitance change across the -55°C to 125°C operating range. C0G/NP0 capacitors maintain ±0.3% capacitance change across the same range. C0G/NP0 is preferred for precision applications requiring stable capacitance; X7R is suitable for general purpose applications tolerating wider capacitance variation.

Q: Does tolerance affect substitutability? A: Tolerance specifies the manufacturing accuracy of capacitance value. A ±1% part is more tightly controlled than a ±20% part. Substituting a tighter tolerance part (e.g., ±1% for ±20%) improves circuit performance without functional incompatibility. Substituting a looser tolerance part may affect circuit performance if the application requires tight capacitance control.

Q: Are all listed parts pin-compatible? A: Yes. All parts use the 0805 (2012 Metric) package with identical footprint and pin spacing, ensuring direct PCB compatibility.

Q: What does MSL 1 (Unlimited) mean? A: MSL 1 indicates the part has unlimited shelf life and requires no moisture bake-out before soldering, regardless of storage duration or humidity exposure.

Q: Can I substitute based on thickness alone? A: No. Thickness variation (0.024" to 0.054") reflects different internal construction but does not affect electrical performance. Thickness is relevant only for mechanical clearance constraints in the PCB assembly. Electrical substitution is determined by capacitance, voltage rating, tolerance, and temperature coefficient.

Q: Why are there multiple manufacturers listed? A: Multiple manufacturers (Knowles Syfer, KEMET, YAGEO, KYOCERA AVX, Knowles Novacap) produce 330 pF 0805 capacitors meeting the same electrical specifications. Substitution across manufacturers is valid provided all electrical and mechanical parameters match circuit requirements.

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