M40R104M2-F Equivalent & Substitute Parts

Part Overview

The M40R104M2-F is a 0.1 µF ±20% 200V ceramic capacitor with X7R temperature coefficient manufactured by Cornell Dubilier Electronics (CDE) in radial through-hole configuration. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement requirements. The part operates across -55°C to 125°C and complies with ROHS3 standards.

Key Parameters

Parameter	Value
Capacitance	0.1 µF
Tolerance	±20%
Voltage Rating	200V
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Mounting Type	Through Hole
Package Type	Radial
Lead Spacing	0.200" (5.08mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the M40R104M2-F is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Requirements:

Capacitance: 0.1 µF (exact match)
Voltage Rating: 200V minimum
Temperature Coefficient: X7R (for direct substitutes) or C0G/NP0 (for upgraded substitutes with improved stability)
Tolerance: ±20% or tighter

Mechanical Compatibility Requirements:

Mounting Type: Through Hole
Package Type: Radial
Lead Spacing: 0.200" (5.08mm)
Physical dimensions compatible with PCB layout constraints

Compliance Requirements:

ROHS3 Compliant
ECCN: EAR99
HTSUS: 8532.24.0060

Substitute parts are categorized into two groups: direct substitutes (matching X7R temperature coefficient and ±20% tolerance) and upgrade substitutes (improved C0G/NP0 temperature coefficient with tighter tolerance specifications).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Mounting	Package	Lead Spacing	Product Status	RoHS3
M40R104M2-F	Cornell Dubilier Electronics	0.1 µF	±20%	200V	X7R	Through Hole	Radial	0.200"	Obsolete	Yes
C330C104M2R5TA	KEMET	0.1 µF	±20%	200V	X7R	Through Hole	Radial	0.200"	Active	Yes
SR302C104MARTR1	KYOCERA AVX	0.1 µF	±20%	200V	X7R	Through Hole	Radial	0.200"	Active	Yes
SR322C104MAA	KYOCERA AVX	0.1 µF	±20%	200V	X7R	Through Hole	Radial	0.200"	Active	Yes
SR642C104MAR	KYOCERA AVX	0.1 µF	±20%	200V	X7R	Through Hole	Radial	0.200"	Active	Yes
C330C104F2G5TA	KEMET	0.1 µF	±1%	200V	C0G	Through Hole	Radial	0.200"	Active	Yes
C330C104FAG5TA	KEMET	0.1 µF	±1%	250V	C0G	Through Hole	Radial	0.200"	Active	Yes
C330C104G2G5TA	KEMET	0.1 µF	±2%	200V	C0G	Through Hole	Radial	0.200"	Active	Yes
C330C104GAG5TA	KEMET	0.1 µF	±2%	250V	C0G	Through Hole	Radial	0.200"	Active	Yes
C330C104J2G5TA	KEMET	0.1 µF	±5%	200V	C0G	Through Hole	Radial	0.200"	Active	Yes
C330C104JAG5TA	KEMET	0.1 µF	±5%	250V	C0G	Through Hole	Radial	0.200"	Active	Yes

Engineering Selection Recommendations

Direct Substitutes (X7R, ±20% Tolerance, 200V):

The following parts provide direct electrical and mechanical equivalence to the M40R104M2-F:

C330C104M2R5TA (KEMET): Active product status with 1150 units in stock. Identical electrical specifications. Smaller physical dimensions (0.280" L x 0.160" W) compared to original part (0.400" L x 0.200" W). Formed leads configuration. Suitable for space-constrained applications.
SR302C104MARTR1 (KYOCERA AVX): Active product status with 1154 units in stock. Supplied in Tape & Reel packaging. Compact dimensions (0.300" L x 0.150" W). Straight lead style. Appropriate for automated assembly processes.
SR322C104MAA (KYOCERA AVX): Active product status with 897 units in stock. Supplied in bulk packaging. Compact dimensions (0.300" L x 0.150" W). Kinked formed leads configuration. Suitable for manual assembly and rework applications.
SR642C104MAR (KYOCERA AVX): Active product status with 1187 units in stock. Supplied in bulk packaging. Compact dimensions (0.300" L x 0.150" W). Straight lead style. Taller profile (0.500" max height) accommodates applications requiring extended lead length.

Upgrade Substitutes (C0G/NP0 Temperature Coefficient, Improved Tolerance):

The following parts offer enhanced performance characteristics with tighter tolerance specifications and superior temperature stability:

C330C104F2G5TA (KEMET): ±1% tolerance, 200V rating. C0G temperature coefficient provides superior stability across operating temperature range. Active product status with 740 units in stock.
C330C104G2G5TA (KEMET): ±2% tolerance, 200V rating. C0G temperature coefficient. Active product status with 660 units in stock.
C330C104J2G5TA (KEMET): ±5% tolerance, 200V rating. C0G temperature coefficient. Active product status with 1120 units in stock.
C330C104FAG5TA (KEMET): ±1% tolerance, 250V rating. C0G temperature coefficient with elevated voltage margin. Active product status with 1092 units in stock.
C330C104GAG5TA (KEMET): ±2% tolerance, 250V rating. C0G temperature coefficient with elevated voltage margin. Active product status with 1015 units in stock.
C330C104JAG5TA (KEMET): ±5% tolerance, 250V rating. C0G temperature coefficient with elevated voltage margin. Active product status with 720 units in stock.

All substitute parts maintain ROHS3 compliance, EAR99 ECCN classification, and identical HTSUS coding. Selection between direct and upgrade substitutes depends on application requirements for temperature stability and tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different temperature coefficient?

A: Direct substitutes maintain X7R temperature coefficient matching the original M40R104M2-F. Upgrade substitutes employ C0G/NP0 temperature coefficient, which provides superior temperature stability and lower capacitance variation across the operating range. C0G/NP0 substitutes are electrically compatible but exhibit different temperature-dependent behavior. Selection depends on application sensitivity to capacitance drift over temperature.

Q: What is the difference between X7R and C0G temperature coefficients?

A: X7R temperature coefficient specifies ±15% capacitance change across -55°C to 125°C operating range. C0G (also designated NP0) specifies ±30 ppm/°C, resulting in significantly lower total capacitance variation. Applications requiring stable capacitance values across temperature extremes benefit from C0G substitutes.

Q: Are the physical dimensions of substitute parts compatible with my PCB layout?

A: The M40R104M2-F measures 0.400" L x 0.200" W with 0.520" maximum seated height. Direct substitute parts are smaller: C330C104M2R5TA (0.280" L x 0.160" W, 0.360" height), SR302C104MARTR1 (0.300" L x 0.150" W, 0.360" height), SR322C104MAA (0.300" L x 0.150" W, 0.390" height), and SR642C104MAR (0.300" L x 0.150" W, 0.500" height). All maintain 0.200" lead spacing. Verify PCB footprint accommodates smaller component dimensions and lead configuration (straight versus formed leads).

Q: What packaging options are available for substitute parts?

A: C330C104M2R5TA is supplied in bulk packaging. SR302C104MARTR1 is supplied in Tape & Reel (TR) configuration suitable for automated pick-and-place assembly. SR322C104MAA and SR642C104MAR are supplied in bulk packaging. KEMET upgrade substitutes are supplied in bulk packaging. Select packaging based on assembly process requirements and production volume.

Q: Can I substitute a 250V rated part for the 200V original?

A: Yes. Upgrade substitutes rated 250V (C330C104FAG5TA, C330C104GAG5TA, C330C104JAG5TA) provide higher voltage margin while maintaining identical capacitance and tolerance specifications. Higher voltage rating does not degrade performance in 200V applications and provides additional safety margin.

Q: What is the lead style difference between straight and formed leads?

A: Straight leads extend perpendicular to the component body and require manual bending for PCB insertion. Formed leads are pre-bent at the component body, facilitating direct insertion into standard radial component footprints. Formed leads reduce assembly time and improve consistency in manual assembly operations. Straight leads provide flexibility for custom lead spacing adjustments.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All direct and upgrade substitute parts listed maintain ROHS3 compliance, matching the original M40R104M2-F certification status. All parts carry EAR99 ECCN classification and identical HTSUS code 8532.24.0060.

Q: What inventory levels are available for substitute parts?

A: Current inventory includes: C330C104M2R5TA (1150 units), SR302C104MARTR1 (1154 units), SR322C104MAA (897 units), SR642C104MAR (1187 units), C330C104F2G5TA (740 units), C330C104FAG5TA (1092 units), C330C104G2G5TA (660 units), C330C104GAG5TA (1015 units), C330C104J2G5TA (1120 units), and C330C104JAG5TA (720 units). All parts are new original stock.

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