M30R105M5 Equivalent & Substitute Parts Reference

Part Overview

The M30R105M5 is a 1 µF ±20% 50V 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 active equivalent and substitute parts for ongoing design support and procurement continuity. The M30 series radial ceramic capacitor remains functionally relevant for general-purpose applications despite its discontinued status. Active alternatives from current manufacturers provide equivalent or enhanced electrical performance with improved compliance certifications.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	1 µF	Must match exactly
Voltage Rating	50V	Minimum requirement; higher ratings acceptable
Tolerance	±20%	Tighter tolerances acceptable; looser tolerances not acceptable
Temperature Coefficient	X7R	Must match for temperature stability
Operating Temperature Range	-55°C ~ 125°C	Minimum requirement; extended ranges acceptable
Mounting Type	Through Hole Radial	Must match for PCB compatibility
Lead Spacing	0.200" (5.08mm)	Must match for PCB footprint compatibility
Lead Style	Straight	Formed leads acceptable with dimensional verification

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following criteria:

Mandatory Matching Parameters:

Capacitance value: 1 µF (exact match required)
Temperature coefficient: X7R (exact match required)
Mounting type: Through-hole radial (exact match required)
Lead spacing: 0.200" (5.08mm) (exact match required)

Acceptable Parameter Variations:

Voltage rating: 50V minimum; 100V acceptable as upgrade
Tolerance: ±20% baseline; ±10% or ±5% acceptable as improvements
Operating temperature range: -55°C to 125°C minimum; extended ranges to 200°C acceptable
Physical dimensions: Minor variations acceptable if lead spacing and mounting type preserved
Lead style: Straight or formed leads acceptable with dimensional verification

Compliance Considerations:

RoHS status: Non-compliant baseline; ROHS3 compliant alternatives preferred
REACH status: Affected or unaffected both acceptable; unaffected preferred
Product status: Active alternatives required for new designs; obsolete parts for legacy support only

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Temp Range	Lead Spacing	Product Status	RoHS Status
M30R105M5	Cornell Dubilier	1 µF	±20%	50V	X7R	-55°C ~ 125°C	0.200"	Obsolete	Non-compliant
MR065C105MAA	KYOCERA AVX	1 µF	±20%	50V	X7R	-55°C ~ 125°C	0.200"	Active	Non-compliant
ARR06B105JGS	KEMET	1 µF	±5%	50V	X7R	-55°C ~ 200°C	0.200"	Active	Non-compliant
ARR06B105KGS	KEMET	1 µF	±10%	50V	X7R	-55°C ~ 200°C	0.200"	Active	ROHS3 Compliant
ARR06B105KWS	KEMET	1 µF	±10%	50V	X7R	-55°C ~ 200°C	0.200"	Active	Non-compliant
ARR06D105MGS	KEMET	1 µF	±20%	100V	X7R	-55°C ~ 200°C	0.200"	Active	Non-compliant
ARR07B105KGS	KEMET	1 µF	±10%	50V	X7R	-55°C ~ 200°C	0.200"	Active	ROHS3 Compliant
ARR07D105KGS	KEMET	1 µF	±10%	100V	X7R	-55°C ~ 200°C	0.200"	Active	Non-compliant
C062C105K5R5TA	KEMET	1 µF	±10%	50V	X7R	-55°C ~ 125°C	0.200"	Active	ROHS3 Compliant
C330C105J5R5TA	KEMET	1 µF	±5%	50V	X7R	-55°C ~ 125°C	0.200"	Active	ROHS3 Compliant
C330C105K5R5TA	KEMET	1 µF	±10%	50V	X7R	-55°C ~ 125°C	0.200"	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Baseline Replacement):

MR065C105MAA from KYOCERA AVX provides direct electrical equivalence to M30R105M5 with identical capacitance (1 µF), tolerance (±20%), voltage rating (50V), temperature coefficient (X7R), and operating range (-55°C ~ 125°C). This part maintains the original specifications while offering active product status and current manufacturing availability. Lead spacing and through-hole radial configuration match the original design without PCB modification.

Preferred Substitutes (Active Status with Compliance Enhancement):

ARR06B105KGS and ARR07B105KGS from KEMET represent preferred alternatives for new designs. Both parts achieve ROHS3 compliance, eliminating regulatory risk for modern applications. ARR06B105KGS provides 50V rating with ±10% tolerance and extended operating range to 200°C. ARR07B105KGS offers identical electrical specifications with improved MSL rating (1 - Unlimited). Both maintain 0.200" lead spacing and through-hole radial mounting.

Upgraded Voltage Rating Option:

ARR06D105MGS and ARR07D105KGS provide 100V rated alternatives with 1 µF capacitance and X7R temperature coefficient. These upgrades accommodate applications requiring higher voltage margins while maintaining ±20% and ±10% tolerance options respectively. Extended temperature range to 200°C supports demanding thermal environments.

Tolerance-Optimized Alternatives:

C330C105J5R5TA delivers ±5% tolerance with ROHS3 compliance, suitable for precision applications requiring tighter capacitance control. C330C105K5R5TA provides ±10% tolerance with equivalent compliance. Both maintain 50V rating and -55°C ~ 125°C operating range. Formed lead style requires dimensional verification against PCB footprint.

Compliance-Driven Selection:

For applications subject to RoHS3 or REACH regulations, C062C105K5R5TA, C330C105J5R5TA, C330C105K5R5TA, ARR06B105KGS, and ARR07B105KGS satisfy current environmental compliance requirements. Non-compliant alternatives remain acceptable for legacy systems or applications without regulatory constraints.

Frequently Asked Questions (FAQ)

Q: Can ARR06D105MGS (100V) replace M30R105M5 (50V) directly?

A: Yes. The 100V rating provides higher voltage margin while maintaining identical 1 µF capacitance, X7R temperature coefficient, and 0.200" lead spacing. Higher voltage ratings do not compromise circuit function in 50V applications. Physical dimensions differ slightly (0.100" width vs. 0.200" original width), requiring PCB layout verification.

Q: What is the difference between ARR06B105KGS and ARR07B105KGS?

A: Both parts share identical electrical specifications (1 µF, ±10%, 50V, X7R, -55°C ~ 200°C, ROHS3 compliant). ARR06B uses 0.100" width; ARR07B uses 0.100" width. Lead spacing remains 0.200" for both. Selection depends on available PCB space and thermal requirements. ARR07B offers unlimited MSL rating.

Q: Is MR065C105MAA suitable for new product designs?

A: MR065C105MAA provides direct electrical equivalence with active product status. However, it does not achieve ROHS3 compliance. For new designs subject to environmental regulations, KEMET alternatives (ARR06B105KGS, ARR07B105KGS, C062C105K5R5TA, C330C105J5R5TA, C330C105K5R5TA) are preferred. MR065C105MAA remains acceptable for legacy system support.

Q: Can C330C105J5R5TA (±5% tolerance) replace M30R105M5 (±20% tolerance)?

A: Yes. Tighter tolerance specifications are functionally superior and directly compatible. The ±5% tolerance provides improved capacitance accuracy without affecting circuit compatibility. Formed lead style requires verification that PCB footprint accommodates lead geometry.

Q: What is the impact of extended temperature range (-55°C ~ 200°C) on substitution?

A: Extended temperature range represents an enhancement, not a limitation. KEMET ARR series parts rated to 200°C operate safely in applications requiring only -55°C ~ 125°C. No circuit modification is required. Extended range provides design margin for thermal stress conditions.

Q: Are there dimensional constraints when substituting radial ceramic capacitors?

A: Lead spacing (0.200" / 5.08mm) must match exactly for PCB footprint compatibility. Body dimensions vary among substitutes: M30R105M5 measures 0.300" L x 0.200" W; alternatives range from 0.290" L x 0.090" W to 0.280" L x 0.160" W. Verify available PCB space before selection. Lead style (straight vs. formed) affects insertion and soldering procedures.

Q: Which substitute offers the best compliance profile?

A: C330C105K5R5TA and C330C105J5R5TA achieve ROHS3 compliance with REACH unaffected status, representing optimal regulatory alignment. ARR06B105KGS and ARR07B105KGS provide ROHS3 compliance with REACH affected status. All four parts eliminate RoHS non-compliance risk present in the original M30R105M5.

Q: Can multiple substitute parts be used interchangeably on the same PCB?

A: Yes, provided lead spacing (0.200") and through-hole radial mounting are maintained. Physical body dimensions vary, requiring PCB layout accommodation. Electrical specifications (1 µF, X7R, 50V minimum) ensure functional interchangeability. Verify solder pad spacing and component clearance before assembly.

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