UFG1H2R2MDM Equivalent & Substitute Parts

Part Overview

The UFG1H2R2MDM is a 2.2 µF, 50 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as Obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement. The UFG series provides 1000 hours of operational life at 85°C and is suitable for audio applications requiring through-hole mounting with 2.00 mm lead spacing.

Key Parameters

Parameter	Value
Capacitance	2.2 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Mounting Type	Through Hole
Package / Case	Radial, Can
Lead Spacing	0.079" (2.00 mm)
Size / Dimension	0.197" Dia (5.00 mm)
Height - Seated (Max)	0.492" (12.50 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the UFG1H2R2MDM is determined by the following critical parameters: capacitance value (2.2 µF), voltage rating (50 V minimum), polarization (polar), mounting type (through hole), and lead spacing (2.00 mm). All substitute parts maintain these core electrical and mechanical specifications to ensure direct compatibility in existing circuit designs.

Substitute parts are grouped into two categories:

Direct Substitutes (Same Voltage Rating - 50 V): Parts that maintain the 50 V voltage rating with equivalent or improved operational characteristics. These include UKW1H2R2MDD, UKL1H2R2KDDANA, UKL1H2R2MDDANA, UPJ1H2R2MDD, and UPV1H2R2MFD. These parts are interchangeable for applications operating at or below 50 V.

Upgrade Substitutes (Higher Voltage Rating - 100 V): Parts rated for 100 V operation, including UFG2A2R2MDM, UKL2A2R2KDD, UPJ2A2R2MDD, and UPM2A2R2MDD. These provide enhanced voltage margin and are suitable for applications requiring higher voltage headroom while maintaining the same capacitance and physical footprint.

Parameter Comparison

Part Number	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp Range	Height (Max)	Product Status
UFG1H2R2MDM	UFG	2.2 µF	50 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.492" (12.50 mm)	Obsolete
UKW1H2R2MDD	UKW	2.2 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.433" (11.00 mm)	Obsolete
UFG2A2R2MDM	UFG	2.2 µF	100 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.492" (12.50 mm)	Obsolete
UKL1H2R2KDDANA	UKL	2.2 µF	50 V	±10%	1000 Hrs @ 105°C	-40°C ~ 105°C	0.472" (12.00 mm)	Not For New Designs
UKL1H2R2MDDANA	UKL	2.2 µF	50 V	±20%	1000 Hrs @ 105°C	-40°C ~ 105°C	0.472" (12.00 mm)	Obsolete
UKL2A2R2KDD	UKL	2.2 µF	100 V	±10%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.472" (12.00 mm)	Obsolete
UPJ1H2R2MDD	UPJ	2.2 µF	50 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.472" (12.00 mm)	Obsolete
UPJ2A2R2MDD	UPJ	2.2 µF	100 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.472" (12.00 mm)	Obsolete
UPM1H2R2MDD	UPM	2.2 µF	50 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.492" (12.50 mm)	Obsolete
UPM2A2R2MDD	UPM	2.2 µF	100 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.492" (12.50 mm)	Obsolete
UPV1H2R2MFD	UPV	2.2 µF	50 V	±20%	5000 Hrs @ 105°C	-55°C ~ 105°C	0.492" (12.50 mm)	Obsolete

Engineering Selection Recommendations

For Direct Replacement (50 V Applications):

UKW1H2R2MDD provides improved thermal life (2000 Hrs @ 85°C versus 1000 Hrs @ 85°C) while maintaining identical electrical specifications. Physical height is reduced to 0.433 inches, offering potential PCB layout advantages. Both parts are ROHS3 compliant and REACH unaffected.

UPJ1H2R2MDD and UPM1H2R2MDD extend operational temperature range to -55°C ~ 105°C and provide 2000 hours lifetime at 105°C. UPM1H2R2MDD carries AEC-Q200 automotive qualification, suitable for applications requiring automotive-grade reliability.

UPV1H2R2MFD offers the longest thermal life at 5000 Hrs @ 105°C, appropriate for applications demanding extended operational endurance at elevated temperatures.

For Voltage Upgrade (100 V Applications):

UFG2A2R2MDM maintains the UFG series designation with upgraded 100 V rating and identical physical dimensions to the original part. This is the direct voltage upgrade within the same series.

UKL2A2R2KDD provides 100 V rating with ±10% tolerance (tighter than the original ±20%) and 2000 hours thermal life at 85°C.

UPJ2A2R2MDD and UPM2A2R2MDD offer 100 V rating with extended temperature range (-55°C ~ 105°C) and 2000 hours lifetime at 105°C. UPM2A2R2MDD includes AEC-Q200 automotive qualification.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity.

Frequently Asked Questions (FAQ)

Q: Can UKW1H2R2MDD be used as a direct replacement for UFG1H2R2MDM?

A: Yes. Both parts share identical capacitance (2.2 µF), voltage rating (50 V), tolerance (±20%), polarization (polar), and through-hole mounting with 2.00 mm lead spacing. UKW1H2R2MDD provides improved thermal life (2000 Hrs @ 85°C) and reduced height (0.433 inches versus 0.492 inches), making it a compatible direct substitute.

Q: What is the difference between 50 V and 100 V rated parts?

A: The voltage rating indicates the maximum continuous voltage the capacitor can withstand. 100 V rated parts (UFG2A2R2MDM, UKL2A2R2KDD, UPJ2A2R2MDD, UPM2A2R2MDD) provide higher voltage margin and are suitable for applications operating above 50 V. In circuits operating at 50 V or below, 100 V parts function identically to 50 V parts but occupy the same physical footprint.

Q: Does tolerance affect substitution compatibility?

A: Tolerance specifies the allowable deviation from the nominal capacitance value. The original UFG1H2R2MDM has ±20% tolerance. Substitute parts with ±10% tolerance (UKL1H2R2KDDANA, UKL2A2R2KDD) provide tighter capacitance control and are compatible substitutes. Parts with ±20% tolerance maintain identical specification matching.

Q: What is the significance of thermal life ratings?

A: Thermal life (measured in hours at a specified temperature) indicates expected operational endurance. UFG1H2R2MDM provides 1000 Hrs @ 85°C. Substitutes with higher thermal life ratings (2000 Hrs @ 85°C or 2000 Hrs @ 105°C) offer extended service life under elevated temperature conditions. Selection depends on application temperature profile and required operational duration.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance equivalent to the original UFG1H2R2MDM.

Q: Which substitute part is recommended for automotive applications?

A: UPM1H2R2MDD and UPM2A2R2MDD carry AEC-Q200 automotive qualification, indicating suitability for automotive-grade reliability requirements. These parts are available in both 50 V and 100 V ratings.

Q: Can physical height differences affect PCB layout?

A: Yes. UKW1H2R2MDD has reduced height (0.433 inches) compared to UFG1H2R2MDM (0.492 inches). Other substitutes maintain heights between 0.433 and 0.492 inches. Verify PCB clearance requirements before selecting parts with different heights.

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