SH220M025ST Equivalent & Substitute Parts

Part Overview

The SH220M025ST is a 22 µF, 25 V aluminum electrolytic capacitor in radial, through-hole configuration manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, with 843 pieces currently in stock. The part is designed for general-purpose applications requiring stable capacitance and reliable performance across industrial temperature ranges.

Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for new designs, production continuity, and long-term component availability. The following substitute parts maintain the core electrical specifications while offering improved availability, extended product lifecycles, or enhanced performance characteristics.

Key Parameters

Parameter	Value	Unit
Capacitance	22	µF
Voltage Rating	25	V
Tolerance	±20%	—
ESR @ 120 Hz	9.65	Ohm
Lifetime @ 105°C	2000	Hrs
Operating Temperature Range	-40°C to 105°C	—
Ripple Current @ 120 Hz	60	mA
Ripple Current @ 10 kHz	72	mA
Lead Spacing	0.079" (2.00 mm)	—
Case Diameter	0.197" (5.00 mm)	—
Height (Seated Max)	0.433" (11.00 mm)	—
Mounting Type	Through Hole	—
Package Type	Radial, Can	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts are grouped based on strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Capacitance: 22 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 25 V minimum (equal or higher voltage ratings are acceptable)
Polarization: Polar (required for electrolytic capacitors)
Lead Spacing: 0.079" (2.00 mm) (exact match required)
Case Diameter: 0.197" (5.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
RoHS Status: ROHS3 Compliant (required for regulatory compliance)

Substitution Groups:

Group 1: Direct Voltage Rating Match (25 V)

SEK220M025ST (CDE): Same voltage, same ESR specification, extended temperature range, active product status
UPW1E220MDD (Nichicon): Same voltage, obsolete status, lower ripple current at 120 Hz

Group 2: Voltage Rating Upgrade (35 V)

SEK220M035ST (CDE): Higher voltage rating, lower ESR, active product status
UPW1V220MDD (Nichicon): Higher voltage rating, obsolete status

Group 3: Voltage Rating Upgrade (50 V)

EEU-EB1H220S (Panasonic): Highest voltage rating, extended lifetime (5000 Hrs @ 105°C), active product status
EKZE500ELL220ME11D (Chemi-Con): Highest voltage rating, active product status, higher ripple current capability
UHE1H220MDD (Nichicon): Highest voltage rating, extended lifetime (5000 Hrs @ 105°C), obsolete status
UPW1H220MDD (Nichicon): Highest voltage rating, obsolete status

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	ESR @ 120 Hz (Ohm)	Lifetime @ 105°C (Hrs)	Operating Temp (°C)	Ripple Current @ 120 Hz (mA)	Height (mm)	Product Status	RoHS
SH220M025ST	CDE	22	25	±20%	9.65	2000	-40 to 105	60	11.00	Obsolete	ROHS3
SEK220M025ST	CDE	22	25	±20%	9.65	2000	-55 to 105	—	13.00	Active	ROHS3
UPW1E220MDD	Nichicon	22	25	±20%	—	2000	-55 to 105	54	11.00	Obsolete	ROHS3
SEK220M035ST	CDE	22	35	±20%	8.44	2000	-55 to 105	65	13.00	Active	ROHS3
UPW1V220MDD	Nichicon	22	35	±20%	—	2000	-55 to 105	54	11.00	Obsolete	ROHS3
EEU-EB1H220S	Panasonic	22	50	±20%	—	5000	-40 to 105	39	12.00	Active	ROHS3
EKZE500ELL220ME11D	Chemi-Con	22	50	±20%	—	2000	-40 to 105	95.2	12.50	Active	ROHS3
UHE1H220MDD	Nichicon	22	50	±20%	—	5000	-40 to 105	99	11.00	Obsolete	ROHS3
UPW1H220MDD	Nichicon	22	50	±20%	—	2000	-55 to 105	51	11.00	Obsolete	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Same Voltage Rating - 25 V):

SEK220M025ST is the primary recommendation. This part maintains identical electrical specifications (22 µF, 25 V, ±20%, 9.65 Ohm ESR) while offering active product status from the same manufacturer (CDE). The extended operating temperature range (-55°C to 105°C) provides improved thermal margin compared to the original SH220M025ST (-40°C to 105°C). Height increase from 11.00 mm to 13.00 mm must be verified against PCB layout constraints.

For Voltage Upgrade Applications (35 V):

SEK220M035ST provides higher voltage rating with reduced ESR (8.44 Ohm), active product status, and extended temperature range. This part is suitable for applications requiring improved voltage margin or operating in extended temperature environments. UPW1V220MDD offers equivalent electrical performance but carries obsolete status.

For Maximum Performance and Reliability (50 V):

EEU-EB1H220S (Panasonic) is recommended for applications requiring extended component lifetime. This part offers 5000 Hrs @ 105°C (2.5× longer than the original specification), active product status, and ROHS3 compliance. The 50 V rating provides maximum voltage margin for circuit protection.

EKZE500ELL220ME11D (Chemi-Con) provides the highest ripple current capability (95.2 mA @ 120 Hz) among all substitutes, making it suitable for high-ripple-current applications. Active product status ensures long-term availability.

Compliance Verification:

All substitute parts maintain ROHS3 compliance and are suitable for applications requiring regulatory adherence. All parts feature identical lead spacing (2.00 mm) and case diameter (5.00 mm), ensuring mechanical compatibility with existing PCB footprints.

Frequently Asked Questions (FAQ)

Q1: Can SEK220M025ST be used as a direct replacement for SH220M025ST?

Yes. SEK220M025ST maintains identical capacitance (22 µF), voltage rating (25 V), tolerance (±20%), and ESR (9.65 Ohm). Lead spacing, case diameter, and mounting type are identical. The primary difference is height: SEK220M025ST measures 13.00 mm versus 11.00 mm for SH220M025ST. PCB layout must accommodate this 2.00 mm height increase. SEK220M025ST offers active product status and extended temperature range (-55°C to 105°C).

Q2: What is the advantage of using a 35 V or 50 V rated capacitor instead of 25 V?

Higher voltage ratings provide increased voltage margin, reducing stress on the capacitor during transient conditions and improving overall circuit reliability. A 35 V or 50 V capacitor can be used in a 25 V circuit without electrical degradation. Higher voltage ratings typically offer lower ESR and extended lifetime specifications. Selection depends on circuit design requirements and available PCB space.

Q3: Are all substitute parts through-hole radial components?

Yes. All substitute parts listed maintain through-hole mounting with radial lead configuration and identical lead spacing (2.00 mm) and case diameter (5.00 mm). Physical footprint compatibility is ensured across all substitutes, though height variations must be verified against PCB layout constraints.

Q4: Which substitute offers the longest operational lifetime?

EEU-EB1H220S and UHE1H220MDD both specify 5000 Hrs @ 105°C, compared to 2000 Hrs @ 105°C for the original SH220M025ST. This represents a 2.5× improvement in rated lifetime. EEU-EB1H220S is recommended due to active product status and availability.

Q5: What is the difference between obsolete and active product status?

Active products are currently manufactured and supported by the supplier, ensuring long-term availability and consistent quality. Obsolete products are no longer manufactured; existing inventory may be limited and future supply cannot be guaranteed. For new designs or long-term production, active products are strongly preferred.

Q6: Are all substitute parts ROHS3 compliant?

Yes. All substitute parts listed carry ROHS3 compliance certification, meeting regulatory requirements for hazardous substance restrictions in electronic components.

Q7: Which substitute has the lowest ESR?

SEK220M035ST specifies 8.44 Ohm ESR @ 120 Hz, the lowest among parts with published ESR data. This reduces heat generation and improves capacitor performance in high-frequency ripple current applications.

Q8: Can UPW1E220MDD be used as a substitute?

UPW1E220MDD maintains identical electrical specifications (22 µF, 25 V, ±20%) and physical dimensions (11.00 mm height). However, it carries obsolete status from Nichicon. While functionally equivalent, active alternatives such as SEK220M025ST are preferred for new designs due to superior availability and long-term supply assurance.

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