UVR2A4R7MDA Equivalent & Substitute Parts

Part Overview

The UVR2A4R7MDA is a 4.7 µF, 100 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 2000 hours at 85°C, making it suitable for general-purpose applications requiring stable capacitance and ripple current handling.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Tolerance	±20%
Voltage Rating	100 V
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Ripple Current @ 120 Hz	45 mA
Ripple Current @ 10 kHz	90 mA
Lead Spacing	0.079" (2.00 mm)
Package / Case	Radial, Can
Mounting Type	Through Hole
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the UVR2A4R7MDA is determined by strict equivalence in the following parameters:

Capacitance: 4.7 µF (exact match required)
Voltage Rating: 100 V (exact match required)
Polarization: Polar (exact match required)
Package / Case: Radial, Can (exact match required)
Lead Spacing: 0.079" (2.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)

Substitute parts are grouped into three categories:

Direct Substitutes maintain identical electrical and mechanical specifications, differing only in packaging format or minor manufacturing variations. These include UVR2A4R7MDD (Nichicon), 100YXF4.7MEFC5X11 and 100YXJ4.7M5X11 (Rubycon), and EKYA101ELL4R7ME11D (Chemi-Con).

Upgrade Substitutes offer enhanced performance characteristics such as improved tolerance (±10% vs. ±20%), extended temperature operating range (-55°C to 105°C vs. -40°C to 85°C), or increased lifetime ratings (5000 hours vs. 2000 hours). These include UKL2A4R7KDD, UPS2A4R7MDD (Nichicon), 475CKE100M (Cornell Dubilier), and 100YXJ4R7M5X11 (Rubycon).

Similar Substitutes maintain core electrical specifications but may exhibit minor variations in ripple current handling, ESR characteristics, or physical dimensions within acceptable tolerances. These include ECA-2AM4R7 (Panasonic) and SK4R7M100ST (Cornell Dubilier Electronics).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Lifetime @ Temp	Operating Temp Range	Ripple Current @ 120 Hz	Ripple Current @ 10/100 kHz	Lead Spacing	Height (Max)	Product Status	RoHS Status
UVR2A4R7MDA	Nichicon	4.7 µF	±20%	100 V	2000 Hrs @ 85°C	-40°C ~ 85°C	45 mA	90 mA @ 10 kHz	0.079" (2.00 mm)	0.492" (12.50 mm)	Obsolete	RoHS non-compliant
UVR2A4R7MDD	Nichicon	4.7 µF	±20%	100 V	2000 Hrs @ 85°C	-40°C ~ 85°C	45 mA	90 mA @ 10 kHz	0.079" (2.00 mm)	0.492" (12.50 mm)	Obsolete	ROHS3 Compliant
UKL2A4R7KDD	Nichicon	4.7 µF	±10%	100 V	2000 Hrs @ 85°C	-40°C ~ 85°C	50 mA	100 mA @ 10 kHz	0.079" (2.00 mm)	0.472" (12.00 mm)	Obsolete	ROHS3 Compliant
UPS2A4R7MDD	Nichicon	4.7 µF	±20%	100 V	2000 Hrs @ 105°C	-55°C ~ 105°C	12.58 mA	74 mA @ 100 kHz	0.079" (2.00 mm)	0.492" (12.50 mm)	Obsolete	ROHS3 Compliant
100YXF4.7MEFC5X11	Rubycon	4.7 µF	±20%	100 V	5000 Hrs @ 105°C	-40°C ~ 105°C	27.3 mA	65 mA @ 100 kHz	0.079" (2.00 mm)	0.492" (12.50 mm)	Not For New Designs	ROHS3 Compliant
100YXJ4.7M5X11	Rubycon	4.7 µF	±20%	100 V	5000 Hrs @ 105°C	-40°C ~ 105°C	27.3 mA	65 mA @ 100 kHz	0.079" (2.00 mm)	0.492" (12.50 mm)	Active	ROHS3 Compliant
100YXJ4R7M5X11	Rubycon	4.7 µF	±20%	100 V	5000 Hrs @ 105°C	-40°C ~ 105°C	27.3 mA	65 mA @ 100 kHz	0.079" (2.00 mm)	0.492" (12.50 mm)	Active	ROHS3 Compliant
475CKE100M	Cornell Dubilier / Illinois Capacitor	4.7 µF	±20%	100 V	2000 Hrs @ 105°C	-40°C ~ 105°C	40 mA	Not specified	0.079" (2.00 mm)	0.492" (12.50 mm)	Active	ROHS3 Compliant
EKYA101ELL4R7ME11D	Chemi-Con	4.7 µF	±20%	100 V	5000 Hrs @ 105°C	-40°C ~ 105°C	26 mA	65 mA @ 100 kHz	0.079" (2.00 mm)	0.492" (12.50 mm)	Active	ROHS3 Compliant
ECA-2AM4R7	Panasonic Electronic Components	4.7 µF	±20%	100 V	2000 Hrs @ 85°C	-40°C ~ 85°C	50 mA	85 mA @ 10 kHz	0.079" (2.00 mm)	0.472" (12.00 mm)	Active	ROHS3 Compliant
SK4R7M100ST	Cornell Dubilier Electronics (CDE)	4.7 µF	±20%	100 V	2000 Hrs @ 85°C	-40°C ~ 85°C	Not specified	Not specified	0.079" (2.00 mm)	0.512" (13.00 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement with Compliance Upgrade: UVR2A4R7MDD (Nichicon) is the primary direct substitute, maintaining identical electrical and mechanical specifications while achieving ROHS3 compliance. This part is obsolete but remains available in inventory (720 pcs).

For Active Production with Enhanced Performance: 100YXJ4.7M5X11 (Rubycon) or 100YXJ4R7M5X11 (Rubycon) are recommended for new designs. Both are active products with extended lifetime ratings (5000 hours @ 105°C), improved temperature operating range (-40°C to 105°C), and ROHS3 compliance. 100YXJ4R7M5X11 offers higher inventory availability (13,887 pcs).

For Extended Temperature Applications: UPS2A4R7MDD (Nichicon) extends the operating temperature range to -55°C to 105°C with 2000-hour lifetime at 105°C, suitable for applications requiring wider thermal performance. ROHS3 compliant with 6,103 pcs in stock.

For Long-Life Applications: EKYA101ELL4R7ME11D (Chemi-Con) provides 5000-hour lifetime at 105°C with active product status and ROHS3 compliance. Suitable for applications demanding extended service life.

For High-Volume Availability: 475CKE100M (Cornell Dubilier) offers the largest inventory (26,256 pcs) with active product status, ROHS3 compliance, and extended temperature range (-40°C to 105°C). Specified ESR of 28.219 Ohm @ 120 Hz.

For Panasonic Ecosystem Integration: ECA-2AM4R7 (Panasonic) maintains identical electrical specifications to the original part with active product status and ROHS3 compliance. Highest inventory availability (82,304 pcs) among all substitutes.

Frequently Asked Questions (FAQ)

Q: Can UVR2A4R7MDD be used as a direct replacement for UVR2A4R7MDA? A: Yes. UVR2A4R7MDD is electrically and mechanically identical to the original part, differing only in RoHS compliance status (ROHS3 vs. non-compliant). Both maintain 4.7 µF capacitance, ±20% tolerance, 100 V rating, and identical ripple current specifications.

Q: What is the primary advantage of upgrading to 100YXJ4.7M5X11? A: The Rubycon 100YXJ4.7M5X11 extends lifetime from 2000 hours to 5000 hours at 105°C, expands operating temperature range from -40°C to 85°C to -40°C to 105°C, and maintains active product status with ROHS3 compliance. Physical dimensions and lead spacing remain compatible.

Q: Are there height differences between substitute parts? A: Yes. Most substitutes maintain the 0.492" (12.50 mm) maximum seated height. However, UKL2A4R7KDD and ECA-2AM4R7 are slightly shorter at 0.472" (12.00 mm), while SK4R7M100ST is taller at 0.512" (13.00 mm). Verify PCB layout clearance before selection.

Q: Which substitute offers the best compliance profile? A: All recommended substitutes achieve ROHS3 compliance. The original UVR2A4R7MDA is RoHS non-compliant. For applications requiring RoHS compliance, any substitute listed meets this requirement.

Q: Can I use parts with different tolerances? A: All listed substitutes maintain ±20% tolerance matching the original specification. UKL2A4R7KDD offers tighter ±10% tolerance, which is compatible but represents an upgrade in capacitance accuracy.

Q: What is the difference between "Active" and "Obsolete" product status? A: Active products are currently manufactured and supported by the vendor. Obsolete products are no longer in production but may remain available from inventory. For new designs, select active products such as 100YXJ4.7M5X11, 475CKE100M, EKYA101ELL4R7ME11D, ECA-2AM4R7, or SK4R7M100ST.

Q: How do ripple current specifications affect part selection? A: Ripple current capacity determines the maximum AC current the capacitor can handle without exceeding temperature limits. The original UVR2A4R7MDA handles 45 mA @ 120 Hz and 90 mA @ 10 kHz. Substitutes with lower ripple current ratings (e.g., 100YXF4.7MEFC5X11 at 27.3 mA @ 120 Hz) are suitable only if circuit ripple current requirements are lower.

Q: Is lead spacing identical across all substitutes? A: Yes. All substitutes maintain 0.079" (2.00 mm) lead spacing, ensuring PCB footprint compatibility without modification.

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