M30R105K5-F Equivalent & Substitute Parts Reference

Part Overview

The M30R105K5-F is a 1 µF ±10% 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 parts for ongoing production and maintenance applications. The part operates across -55°C to 125°C and complies with ROHS3 standards, serving general-purpose applications requiring stable capacitance across the operating temperature range.

Key Parameters

Parameter	Value	Substitution Relevance
Capacitance	1 µF	Critical - must match exactly
Voltage Rating	50V	Critical - must match or exceed
Tolerance	±10%	Critical - must match
Temperature Coefficient	X7R	Critical - determines temperature stability
Operating Temperature Range	-55°C to 125°C	Critical - must match or exceed
Mounting Type	Through Hole Radial	Critical - determines PCB compatibility
Lead Spacing	0.200" (5.08mm)	Critical - determines PCB hole pattern compatibility
RoHS Status	ROHS3 Compliant	Regulatory - required for compliance

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across electrical and mechanical parameters. All substitute parts listed maintain identical capacitance (1 µF), voltage rating (50V), tolerance (±10%), temperature coefficient (X7R), and operating temperature range (-55°C to 125°C). All substitutes are through-hole radial packages with 0.197" to 0.200" lead spacing, compatible with standard 5.08mm PCB hole patterns. Physical dimensions vary within acceptable ranges for through-hole mounting. All substitute parts maintain ROHS3 compliance. Product status differentiation identifies active parts suitable for new designs versus legacy inventory.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Temp Coeff	Temp Range	Lead Spacing	Product Status	Packaging
M30R105K5-F	Cornell Dubilier Electronics	1 µF	50V	±10%	X7R	-55°C to 125°C	0.200" (5.08mm)	Obsolete	Radial
C330C105K5R5TA	KEMET	1 µF	50V	±10%	X7R	-55°C to 125°C	0.200" (5.08mm)	Active	Bulk
C330C105K5R5TA7301	KEMET	1 µF	50V	±10%	X7R	-55°C to 125°C	0.200" (5.08mm)	Active	Cut Tape (CT)
FK20X7R1H105KN000	TDK Corporation	1 µF	50V	±10%	X7R	-55°C to 125°C	0.197" (5.00mm)	Not For New Designs	Bulk
FK24X7R1H105KR000	TDK Corporation	1 µF	50V	±10%	X7R	-55°C to 125°C	0.197" (5.00mm)	Not For New Designs	Bulk
FK26X7R1H105KR000	TDK Corporation	1 µF	50V	±10%	X7R	-55°C to 125°C	0.197" (5.00mm)	Not For New Designs	Bulk
K105K20X7RF53H5	Vishay Beyschlag/Draloric/BC Components	1 µF	50V	±10%	X7R	-55°C to 125°C	0.197" (5.00mm)	Active	Bulk
K105K20X7RF53K5	Vishay Beyschlag/Draloric/BC Components	1 µF	50V	±10%	X7R	-55°C to 125°C	0.197" (5.00mm)	Active	Bulk
K105K20X7RF5UH5	Vishay Beyschlag/Draloric/BC Components	1 µF	50V	±10%	X7R	-55°C to 125°C	0.197" (5.00mm)	Active	Cut Tape (CT)
RDER71H105K2K1H03B	Murata Electronics	1 µF	50V	±10%	X7R	-55°C to 125°C	0.197" (5.00mm)	Active	Bulk
RDER71H105K2M1H03A	Murata Electronics	1 µF	50V	±10%	X7R	-55°C to 125°C	0.197" (5.00mm)	Active	Cut Tape (CT)

Engineering Selection Recommendations

For New Designs: Select from active product status parts. KEMET C330C105K5R5TA7301 (Cut Tape packaging) or Vishay K105K20X7RF5UH5 (Cut Tape packaging) provide current production availability with established supply chains. Murata RDER71H105K2M1H03A offers alternative active sourcing in tape format.

For Legacy System Maintenance: KEMET C330C105K5R5TA (Bulk packaging) or Vishay K105K20X7RF53H5 (Bulk packaging) provide direct electrical and mechanical equivalence to the obsolete M30R105K5-F. Both maintain identical electrical specifications and ROHS3 compliance.

For Inventory Transition: TDK FK series parts (FK20X7R1H105KN000, FK24X7R1H105KR000, FK26X7R1H105KR000) are classified as "Not For New Designs" but remain available in current inventory. These are suitable for sustaining production of existing products where design changes are not feasible.

All listed substitutes maintain ROHS3 compliance and are suitable for applications requiring -55°C to 125°C operating temperature stability with X7R temperature coefficient performance.

Frequently Asked Questions (FAQ)

Q: Can I substitute the M30R105K5-F with any of the listed parts?

A: Yes, all listed parts are electrically and mechanically equivalent. They share identical capacitance (1 µF), voltage rating (50V), tolerance (±10%), temperature coefficient (X7R), and operating temperature range (-55°C to 125°C). Lead spacing compatibility (0.197" to 0.200") accommodates standard 5.08mm PCB hole patterns.

Q: What is the difference between parts with 0.200" and 0.197" lead spacing?

A: Both lead spacings are compatible with standard 5.08mm PCB hole patterns used for through-hole radial capacitors. The 0.003" difference is within manufacturing tolerance for PCB hole placement and does not affect functional compatibility.

Q: Why are some parts listed as "Not For New Designs"?

A: TDK FK series parts are legacy products no longer recommended for new circuit designs. However, they remain electrically and mechanically equivalent and are suitable for repair, maintenance, and sustaining production of existing products.

Q: What is the difference between Bulk and Cut Tape packaging?

A: Bulk packaging contains loose components suitable for manual assembly or small-quantity applications. Cut Tape (CT) packaging provides components on carrier tape suitable for automated pick-and-place assembly equipment. Electrical and mechanical specifications are identical; packaging selection depends on assembly process requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts maintain ROHS3 compliance, meeting regulatory requirements for hazardous substance restrictions.

Q: Which substitute offers the best current availability?

A: KEMET C330C105K5R5TA7301 (Cut Tape) shows 95,650 pieces in stock. Vishay K105K20X7RF5UH5 (Cut Tape) shows 24,647 pieces in stock. Both are active products with established supply continuity.

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