Equivalent & Substitute Parts for UTT1H220MDD

Part Overview

The UTT1H220MDD is a 22 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 5000 hours at 105°C and is designed for general-purpose applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible specifications.

Key Parameters

Parameter	Value
Capacitance	22 µF
Voltage Rating	50 V
Tolerance	±20%
Lifetime @ 105°C	5000 Hrs
Operating Temperature Range	-40°C to 105°C
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.098" (2.50mm)
Size / Diameter	0.248" (6.30mm)
Height	0.354" (9.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UTT1H220MDD is determined by the following critical parameters:

Capacitance: 22 µF (exact match required)
Voltage Rating: 50 V minimum (equal or higher voltage rating acceptable)
Tolerance: ±20% (standard tolerance match)
Mounting Type: Through Hole (radial, can package)
Operating Temperature Range: -40°C to 105°C minimum
Lead Spacing and Physical Dimensions: Must accommodate PCB layout constraints

Substitute parts are grouped into two categories:

Category 1 - Direct Equivalents (Same Voltage, Same Lifetime) Parts matching 50 V rating with 5000 Hrs @ 105°C lifetime, maintaining identical electrical and thermal performance characteristics.

Category 2 - Functional Equivalents (Same Voltage, Different Lifetime) Parts matching 50 V rating with alternative lifetime ratings (2000 Hrs @ 105°C), suitable for applications where extended thermal endurance is not critical.

Category 3 - Higher Voltage Alternatives Parts rated at 63 V or higher, providing voltage margin while maintaining 22 µF capacitance and compatible form factors.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Lifetime @ 105°C	Lead Spacing	Size / Diameter	Height	Product Status	RoHS Status
UTT1H220MDD	Nichicon	22 µF	50 V	5000 Hrs	0.098" (2.50mm)	0.248" (6.30mm)	0.354" (9.00mm)	Obsolete	ROHS3
UHE1H220MDD	Nichicon	22 µF	50 V	5000 Hrs	0.079" (2.00mm)	0.197" (5.00mm)	0.433" (11.00mm)	Obsolete	ROHS3
UHD1H220MDD	Nichicon	22 µF	50 V	2000 Hrs	0.079" (2.00mm)	0.197" (5.00mm)	0.492" (12.50mm)	Obsolete	ROHS3
EEU-FM1H220	Panasonic Electronic Components	22 µF	50 V	2000 Hrs	0.079" (2.00mm)	0.197" (5.00mm)	0.492" (12.50mm)	Active	ROHS3
EEU-FR1H220	Panasonic Electronic Components	22 µF	50 V	5000 Hrs	0.079" (2.00mm)	0.197" (5.00mm)	0.492" (12.50mm)	Active	ROHS3
EEU-FR1H220B	Panasonic Electronic Components	22 µF	50 V	5000 Hrs	0.197" (5.00mm)	0.197" (5.00mm)	0.492" (12.50mm)	Active	ROHS3
EKZE500ELL220ME11D	Chemi-Con	22 µF	50 V	2000 Hrs	0.079" (2.00mm)	0.197" (5.00mm)	0.492" (12.50mm)	Active	ROHS3
UPW1J220MED	Nichicon	22 µF	63 V	2000 Hrs	0.098" (2.50mm)	0.248" (6.30mm)	0.433" (11.00mm)	Obsolete	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance)

EEU-FR1H220 and EEU-FR1H220B from Panasonic Electronic Components are recommended as primary substitutes. Both maintain the 22 µF, 50 V specification with 5000 Hrs @ 105°C lifetime, matching the thermal endurance of the original UTT1H220MDD. These parts carry Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

For Space-Constrained Applications

UHE1H220MDD from Nichicon provides equivalent electrical performance (22 µF, 50 V, 5000 Hrs @ 105°C) with a smaller diameter (0.197" vs. 0.248") and reduced lead spacing (0.079" vs. 0.098"), accommodating tighter PCB layouts. Note that this part is obsolete; however, it remains functionally compatible.

For Cost-Optimized Designs

UHD1H220MDD, EEU-FM1H220, and EKZE500ELL220ME11D are suitable alternatives where thermal endurance requirements permit 2000 Hrs @ 105°C operation. These parts maintain 22 µF, 50 V specifications and are available in active or bulk inventory status.

For Voltage Margin Applications

UPW1J220MED from Nichicon provides a 63 V rating while maintaining 22 µF capacitance, offering increased voltage headroom for designs requiring additional safety margin. This part is rated for 2000 Hrs @ 105°C and maintains compatible lead spacing (0.098", 2.50mm) with the original UTT1H220MDD.

All recommended substitutes are ROHS3 compliant and suitable for general-purpose applications within the specified operating temperature range of -40°C to 105°C.

Frequently Asked Questions (FAQ)

Q: Can I use a 63 V rated capacitor in place of a 50 V rated capacitor?

A: Yes. A higher voltage rating provides additional safety margin and is electrically compatible. The UPW1J220MED (63 V) can substitute for the UTT1H220MDD (50 V) when the physical dimensions and lead spacing accommodate the PCB layout.

Q: What is the difference between 5000 Hrs and 2000 Hrs lifetime ratings?

A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C). The 5000 Hrs rating provides extended thermal endurance compared to 2000 Hrs. For applications requiring maximum reliability under sustained thermal stress, select parts with 5000 Hrs @ 105°C rating.

Q: Are there physical dimension differences between substitute parts?

A: Yes. The original UTT1H220MDD has a 0.248" diameter and 0.354" height with 0.098" lead spacing. Substitutes vary: EEU-FR1H220 has a 0.197" diameter and 0.492" height with 0.079" lead spacing. Verify PCB layout compatibility before selection.

Q: What does ROHS3 compliance mean?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. All listed substitutes are ROHS3 compliant.

Q: Which substitute has the best availability?

A: EEU-FR1H220 from Panasonic Electronic Components has the highest inventory (29,851 Pcs) and Active product status, ensuring reliable long-term supply. This part matches the original specifications with 22 µF, 50 V, and 5000 Hrs @ 105°C rating.

Q: Can I use parts with different lead spacing on the same PCB?

A: No. Lead spacing must match PCB hole patterns. The original UTT1H220MDD uses 0.098" (2.50mm) spacing. Substitutes with 0.079" (2.00mm) spacing require PCB redesign and are not direct drop-in replacements.

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