Equivalent & Substitute Parts for MZA50VC4R7MD61TP

Part Overview

The Chemi-Con MZA50VC4R7MD61TP is a 4.7 µF, 50 V aluminum electrolytic capacitor in surface mount radial can package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing production and maintenance applications. The part serves general-purpose functions in bypass and decoupling circuits with a rated lifetime of 2000 hours at 105°C.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C
Package Type	Radial, Can - SMD
Mounting Type	Surface Mount
Polarization	Polar
Size / Dimension	0.157" Dia (4.00mm)
Height - Seated (Max)	0.228" (5.80mm)
Surface Mount Land Size	0.169" L x 0.169" W (4.30mm x 4.30mm)
Impedance	2.9 Ohms
Ripple Current @ 100 kHz	60 mA
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MZA50VC4R7MD61TP is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

Capacitance: 4.7 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Lifetime: 2000 Hrs @ 105°C (exact match required)
Operating Temperature: -55°C ~ 105°C (exact match required)
Impedance: 2.9 Ohms (exact match required)
Ripple Current @ 100 kHz: 60 mA (exact match required)

Mechanical Equivalence Criteria:

Package Type: Radial, Can - SMD (exact match required)
Mounting Type: Surface Mount (exact match required)
Diameter: 0.157" (4.00mm) (exact match required)
Surface Mount Land Size: 0.169" L x 0.169" W (4.30mm x 4.30mm) (exact match required)
Polarization: Polar (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Substitutes are classified as:

Direct Substitutes: Parts meeting all electrical and mechanical parameters with identical or compatible height specifications
Similar Substitutes: Parts meeting all electrical and mechanical parameters with minor height variations within acceptable PCB assembly tolerances

Parameter Comparison

Parameter	MZA50VC4R7MD61TP (Chemi-Con)	50TZV4.7M4X6.1 (Rubycon)	50TZV4R7M4X6.1 (Rubycon)	AFK475M50B12T-F (CDE)	EEE-FK1H4R7R (Panasonic)
Capacitance	4.7 µF	4.7 µF	4.7 µF	4.7 µF	4.7 µF
Voltage Rating	50 V	50 V	50 V	50 V	50 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ 105°C	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Package Type	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD	Radial, Can - SMD
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Polarization	Polar	Polar	Polar	Polar	Polar
Size / Diameter	0.157" (4.00mm)	0.157" (4.00mm)	0.157" (4.00mm)	0.157" (4.00mm)	0.157" (4.00mm)
Height - Seated (Max)	0.228" (5.80mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)
Surface Mount Land Size	0.169" L x 0.169" W (4.30mm x 4.30mm)	0.169" L x 0.169" W (4.30mm x 4.30mm)	0.169" L x 0.169" W (4.30mm x 4.30mm)	0.169" L x 0.217" W (4.30mm x 5.50mm)	0.169" L x 0.169" W (4.30mm x 4.30mm)
Impedance	2.9 Ohms	2.9 Ohms	2.9 Ohms	2.9 Ohms	2.9 Ohms
Ripple Current @ 100 kHz	60 mA	60 mA	60 mA	60 mA	60 mA
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Ratings	-	AEC-Q200	AEC-Q200	AEC-Q200	AEC-Q200

Engineering Selection Recommendations

Direct Substitutes (Preferred):

The Rubycon 50TZV4R7M4X6.1 and Panasonic EEE-FK1H4R7R are direct substitutes for the MZA50VC4R7MD61TP. Both parts meet all electrical and mechanical parameters with identical surface mount land sizes (0.169" L x 0.169" W). The 50TZV4R7M4X6.1 offers the highest inventory availability (10,084 pcs) and maintains full electrical equivalence. The EEE-FK1H4R7R provides an alternative from Panasonic with equivalent specifications and substantial inventory (11,104 pcs).

Both direct substitutes carry AEC-Q200 automotive qualification ratings and are ROHS3 compliant, addressing regulatory requirements absent in the obsolete MZA part.

Alternative Substitute (Conditional):

The Rubycon 50TZV4.7M4X6.1 meets all electrical parameters and maintains identical surface mount land size. This part is functionally equivalent with 1,158 pcs available inventory.

Conditional Substitute (PCB Layout Verification Required):

The Cornell Dubilier Electronics AFK475M50B12T-F meets all electrical parameters but features a different surface mount land size (0.169" L x 0.217" W versus 0.169" L x 0.169" W). This part is suitable only if PCB layout accommodates the wider land pattern. The AFK475M50B12T-F provides 3,294 pcs inventory availability and carries AEC-Q200 certification with ROHS3 compliance.

All substitute parts maintain the 2000-hour lifetime specification at 105°C and identical impedance characteristics, ensuring functional compatibility in bypass and decoupling applications.

Frequently Asked Questions (FAQ)

Q: Can the Rubycon 50TZV4R7M4X6.1 be used as a direct replacement for the MZA50VC4R7MD61TP?

A: Yes. The 50TZV4R7M4X6.1 meets all electrical and mechanical parameters of the MZA50VC4R7MD61TP, including capacitance (4.7 µF), voltage rating (50 V), tolerance (±20%), lifetime (2000 Hrs @ 105°C), operating temperature range (-55°C ~ 105°C), package type (Radial, Can - SMD), and surface mount land size (0.169" L x 0.169" W). The height difference (6.10mm versus 5.80mm) is within acceptable PCB assembly tolerances for surface mount components.

Q: What is the difference between the two Rubycon TZV series parts listed?

A: Both the 50TZV4.7M4X6.1 and 50TZV4R7M4X6.1 are electrically and mechanically equivalent. The part numbers differ in nomenclature convention but specify identical electrical characteristics and physical dimensions. The 50TZV4R7M4X6.1 has significantly higher inventory availability (10,084 pcs versus 1,158 pcs).

Q: Why does the AFK475M50B12T-F have a different surface mount land size?

A: The AFK475M50B12T-F from Cornell Dubilier Electronics features a surface mount land size of 0.169" L x 0.217" W (4.30mm x 5.50mm), compared to 0.169" L x 0.169" W (4.30mm x 4.30mm) for the MZA50VC4R7MD61TP. This wider land pattern reflects design differences in the component's internal structure. This part is suitable only if the PCB layout has been designed to accommodate the wider footprint.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts (50TZV4.7M4X6.1, 50TZV4R7M4X6.1, AFK475M50B12T-F, and EEE-FK1H4R7R) are ROHS3 compliant. The original MZA50VC4R7MD61TP is RoHS non-compliant, making the substitutes necessary for applications requiring regulatory compliance.

Q: Do all substitute parts carry automotive qualification?

A: Yes. All substitute parts carry AEC-Q200 automotive qualification ratings. The original MZA50VC4R7MD61TP does not specify AEC-Q200 certification.

Q: What is the impedance specification, and is it consistent across all parts?

A: Impedance is specified as 2.9 Ohms across all parts, including the original MZA50VC4R7MD61TP and all substitute parts. This parameter is critical for high-frequency bypass and decoupling applications.

Q: Can I use the Panasonic EEE-FK1H4R7R in place of the MZA50VC4R7MD61TP?

A: Yes. The Panasonic EEE-FK1H4R7R meets all electrical and mechanical parameters, including capacitance, voltage rating, tolerance, lifetime, operating temperature, package type, and surface mount land size. It is a direct substitute with 11,104 pcs inventory availability and ROHS3 compliance.

Q: What is the moisture sensitivity level, and why is it important?

A: All parts, including the MZA50VC4R7MD61TP and all substitutes, carry Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without special moisture control measures. This simplifies inventory management and component handling.

Q: Are there any differences in ripple current specifications?

A: The ripple current at 100 kHz is specified as 60 mA for all parts. The Rubycon and Panasonic parts also specify ripple current at 120 Hz (18 mA for Rubycon, 45 mA for CDE AFK475M50B12T-F and Panasonic). These specifications are consistent with the electrical equivalence of the parts.

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