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SH220M050ST Equivalent & Substitute Parts Reference
Part Overview
The SH220M050ST is a 22 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, with a rated lifetime of 2000 hours at 105°C and an operating temperature range of -40°C to 105°C. The part is designed for general-purpose applications requiring through-hole mounting with 2.00 mm lead spacing and 5.00 mm diameter form factor.
Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for production and field replacement applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Capacitance | 22 | µF |
| Tolerance | ±20% | — |
| Voltage - Rated | 50 | V |
| ESR @ 120 Hz | 7.23 | Ohm |
| Lifetime @ 105°C | 2000 | Hrs |
| Operating Temperature Range | -40 to 105 | °C |
| Ripple Current @ 120 Hz | 75 | mA |
| Ripple Current @ 10 kHz | 105 | mA |
| Lead Spacing | 2.00 | mm |
| Diameter | 5.00 | mm |
| Height (Seated Max) | 11.00 | mm |
| Mounting Type | Through Hole | — |
| Package / Case | Radial, Can | — |
| Polarization | Polar | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution of the SH220M050ST is determined by strict equivalence across the following critical parameters:
Mandatory Matching Parameters:
- Capacitance: 22 µF (exact match required)
- Voltage Rating: 50 V (exact match required)
- Tolerance: ±20% (exact match required)
- Polarization: Polar (exact match required)
- Mounting Type: Through Hole (exact match required)
- Package / Case: Radial, Can (exact match required)
- Lead Spacing: 2.00 mm (exact match required)
- Diameter: 5.00 mm (exact match required)
Compatible Parameter Ranges:
- Operating Temperature: Substitute must support minimum -40°C and maximum 105°C
- Lifetime @ 105°C: Substitute must meet or exceed 2000 hours
- RoHS Status: ROHS3 Compliant (maintained across all substitutes)
Substitute parts are grouped into three categories based on product status and performance characteristics: Upgrade (active status with enhanced specifications), Direct (functionally equivalent, active status), and Similar (active status with comparable electrical performance).
Parameter Comparison
| Part Number | Manufacturer | Capacitance (µF) | Voltage (V) | Tolerance | Lifetime @ 105°C (Hrs) | Operating Temp (°C) | Height (mm) | Product Status | RoHS |
|---|---|---|---|---|---|---|---|---|---|
| SH220M050ST | Cornell Dubilier Electronics | 22 | 50 | ±20% | 2000 | -40 to 105 | 11.00 | Obsolete | ROHS3 |
| SEK220M050ST | Mallory | 22 | 50 | ±20% | 2000 | -55 to 105 | 13.00 | Active | ROHS3 |
| EEU-FM1H220 | Panasonic Electronic Components | 22 | 50 | ±20% | 2000 | -40 to 105 | 12.50 | Active | ROHS3 |
| EKZE500ELL220ME11D | Chemi-Con | 22 | 50 | ±20% | 2000 | -40 to 105 | 12.50 | Active | ROHS3 |
| UHE1H220MDD | Nichicon | 22 | 50 | ±20% | 5000 | -40 to 105 | 11.00 | Obsolete | ROHS3 |
| UPW1H220MDD | Nichicon | 22 | 50 | ±20% | 2000 | -55 to 105 | 11.00 | Obsolete | ROHS3 |
| EEU-EB1H220S | Panasonic Electronic Components | 22 | 50 | ±20% | 5000 | -40 to 105 | 12.00 | Active | ROHS3 |
| EEU-FR1H220 | Panasonic Electronic Components | 22 | 50 | ±20% | 5000 | -40 to 105 | 12.50 | Active | ROHS3 |
Engineering Selection Recommendations
Upgrade Path (Active Status, Enhanced Specifications):
SEK220M050ST (Mallory) provides active product status with extended operating temperature range (-55°C to 105°C) compared to the original SH220M050ST. Height increases from 11.00 mm to 13.00 mm, requiring PCB layout verification for clearance compatibility. This part is suitable for applications requiring extended low-temperature operation.
EEU-EB1H220S (Panasonic Electronic Components) offers active status with doubled lifetime rating (5000 hours at 105°C versus 2000 hours). Height is 12.00 mm. This upgrade is appropriate for applications requiring extended operational life or higher reliability margins.
Direct Equivalents (Active Status, Matched Specifications):
EEU-FM1H220 (Panasonic Electronic Components) maintains identical electrical specifications with 2000-hour lifetime at 105°C and -40°C to 105°C operating range. Height is 12.50 mm. This part provides direct functional replacement with active manufacturer support.
EKZE500ELL220ME11D (Chemi-Con) matches all critical electrical parameters with 2000-hour lifetime and -40°C to 105°C operating range. Height is 12.50 mm. This part is suitable for direct substitution with active product status.
Similar Options (Active Status, Comparable Performance):
EEU-FR1H220 (Panasonic Electronic Components) provides active status with enhanced lifetime (5000 hours at 105°C). Height is 12.50 mm. This part offers improved reliability with active manufacturer support.
Considerations for Obsolete Substitutes:
UHE1H220MDD (Nichicon) and UPW1H220MDD (Nichicon) are classified as obsolete. While UHE1H220MDD offers extended lifetime (5000 hours), both parts carry obsolete status and should not be selected for new designs or long-term production requirements.
All substitute parts maintain ROHS3 compliance and through-hole radial can package configuration with 2.00 mm lead spacing and 5.00 mm diameter, ensuring mechanical and electrical compatibility within the specified parameter ranges.
Frequently Asked Questions (FAQ)
Q: Can SEK220M050ST be used as a direct replacement for SH220M050ST?
A: SEK220M050ST is electrically equivalent with identical capacitance (22 µF), voltage rating (50 V), and tolerance (±20%). However, the height increases from 11.00 mm to 13.00 mm. PCB layout clearance must be verified before substitution. The extended operating temperature range (-55°C to 105°C) provides additional margin for low-temperature applications.
Q: What is the difference between EEU-FM1H220 and EEU-FR1H220?
A: Both parts are manufactured by Panasonic Electronic Components with identical capacitance, voltage, and tolerance. The primary difference is lifetime rating: EEU-FM1H220 is rated for 2000 hours at 105°C, while EEU-FR1H220 is rated for 5000 hours at 105°C. Both have height of 12.50 mm. EEU-FR1H220 is suitable for applications requiring extended operational life.
Q: Are height differences between substitute parts critical?
A: Height differences must be evaluated against PCB layout constraints. The original SH220M050ST has a maximum seated height of 11.00 mm. Substitutes range from 11.00 mm to 13.00 mm. If PCB clearance is limited, verify that the selected substitute height does not exceed available space. Height increases of 1.00 to 2.00 mm may require layout modification.
Q: Why are some substitute parts marked as obsolete?
A: UHE1H220MDD and UPW1H220MDD are classified as obsolete by their manufacturers. While these parts may still be available in inventory, they do not receive ongoing manufacturer support or design updates. For new designs and long-term production, active-status parts (SEK220M050ST, EEU-FM1H220, EKZE500ELL220ME11D, EEU-EB1H220S, EEU-FR1H220) are recommended.
Q: What does ±20% tolerance mean for the 22 µF capacitance?
A: ±20% tolerance indicates that the actual capacitance value will fall within the range of 17.6 µF to 26.4 µF. All listed substitute parts maintain this tolerance specification, ensuring compatibility with circuit designs that account for this tolerance band.
Q: Can I use a 50 V rated capacitor in a circuit designed for 50 V operation?
A: Yes, all substitute parts are rated for 50 V, matching the original SH220M050ST. The voltage rating represents the maximum continuous DC voltage the capacitor can withstand. Operating at or below the rated voltage is required for reliable operation.
Q: What is ESR and why does it vary among substitutes?
A: Equivalent Series Resistance (ESR) represents the internal resistance of the capacitor at a specified frequency. The original SH220M050ST has 7.23 Ohm ESR at 120 Hz. Some substitute parts do not specify ESR but provide impedance values instead. Lower ESR generally indicates better high-frequency performance and lower heat generation under ripple current conditions.
Q: Are all substitute parts RoHS3 compliant?
A: Yes, all listed substitute parts maintain ROHS3 compliance, matching the original SH220M050ST. This ensures compatibility with environmental and regulatory requirements for electronic component manufacturing and disposal.
Q: What is the significance of lead spacing (2.00 mm)?
A: Lead spacing of 2.00 mm defines the distance between the two radial leads on the capacitor. All substitute parts maintain this spacing, ensuring compatibility with existing PCB footprints designed for the SH220M050ST. Mismatched lead spacing would require PCB redesign.
Q: How do I select between active and obsolete substitute parts?
A: For new designs and production applications, select only from active-status parts: SEK220M050ST, EEU-FM1H220, EKZE500ELL220ME11D, EEU-EB1H220S, or EEU-FR1H220. Obsolete parts should be used only for field replacement of existing equipment where design continuity is required and active alternatives are not suitable.
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