Equivalent & Substitute Parts for 335CKE050M

Part Overview

The 335CKE050M is a 3.3 µF, 50 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as Active and is used in bypass and decoupling applications. The part features a 2000-hour lifetime rating at 105°C and operates across the temperature range of -40°C to 105°C.

Substitute parts are necessary when the original manufacturer discontinues production, when inventory becomes unavailable, or when design requirements necessitate upgraded performance characteristics such as extended lifetime or higher voltage ratings while maintaining the same physical footprint and electrical specifications.

Key Parameters

Parameter	Value	Unit	Significance for Substitution
Capacitance	3.3	µF	Must match exactly
Voltage - Rated	50	V	Must match or exceed
Tolerance	±20%	%	Must match or be tighter
Polarization	Polar	-	Must match
Mounting Type	Through Hole	-	Must match
Package / Case	Radial, Can	-	Must match
Lead Spacing	0.079" (2.00mm)	-	Must match for PCB compatibility
Size / Dimension	0.197" Dia (5.00mm)	-	Must match for mechanical fit
Height - Seated (Max)	0.492" (12.50mm)	-	Must match for clearance
Operating Temperature	-40°C ~ 105°C	-	Must match or exceed range
Lifetime @ Temp.	2000	Hrs @ 105°C	Can be equal or greater
RoHS Status	ROHS3 Compliant	-	Must maintain compliance

Substitute Part Grouping Explanation

Substitute parts for the 335CKE050M are categorized into two groups based on substitution logic:

Direct Substitutes (Equivalent Performance)

Direct substitutes maintain identical electrical and mechanical specifications: 3.3 µF capacitance, 50 V rated voltage, ±20% tolerance, polar configuration, through-hole radial can package with 2.00mm lead spacing, 5.00mm diameter, and 12.50mm maximum height. These parts are interchangeable on the PCB without modification. Direct substitutes include ESH335M050AC3AA (KEMET), UPM1H3R3MDD (Nichicon), and UPS1H3R3MDD (Nichicon).

Upgrade Substitutes (Enhanced Performance)

Upgrade substitutes maintain the same capacitance, tolerance, physical dimensions, and package configuration but offer either higher voltage rating or extended lifetime. These parts are electrically compatible and mechanically interchangeable. Upgrade options include 50YXJ3.3M5X11 and 50YXJ3R3M5X11 (Rubycon, 5000-hour lifetime at 50V), 100YXJ3.3M5X11 (Rubycon, 100V rating with 5000-hour lifetime), and UPM2A3R3MDD (Nichicon, 100V rating).

Parameter Comparison

Manufacturer	Part Number	Series	Capacitance (µF)	Voltage (V)	Tolerance	Lifetime @ 105°C (Hrs)	Operating Temp (°C)	Product Status	Ripple Current @ 120 Hz (mA)
Cornell Dubilier / Illinois Capacitor	335CKE050M	CKE	3.3	50	±20%	2000	-40 ~ 105	Active	35
KEMET	ESH335M050AC3AA	ESH	3.3	50	±20%	2000	-40 ~ 105	Active	25
Nichicon	UPM1H3R3MDD	UPM	3.3	50	±20%	2000	-55 ~ 105	Obsolete	33
Nichicon	UPS1H3R3MDD	UPS	3.3	50	±20%	2000	-55 ~ 105	Obsolete	11.05
Rubycon	50YXJ3.3M5X11	YXJ	3.3	50	±20%	5000	-40 ~ 105	Active	22.26
Rubycon	50YXJ3R3M5X11	YXJ	3.3	50	±20%	5000	-40 ~ 105	Active	22.26
Rubycon	100YXJ3.3M5X11	YXJ	3.3	100	±20%	5000	-40 ~ 105	Active	16.8
Nichicon	UPM2A3R3MDD	UPM	3.3	100	±20%	2000	-55 ~ 105	Obsolete	27

Engineering Selection Recommendations

For Direct Replacement (Same Specifications)

ESH335M050AC3AA (KEMET) is the recommended direct substitute. This part maintains Active product status, identical electrical specifications, and ROHS3 compliance. It provides equivalent performance with 8794 units in stock inventory.

For Applications Requiring Extended Lifetime

50YXJ3.3M5X11 or 50YXJ3R3M5X11 (Rubycon) are suitable upgrades when extended operational life is required. Both parts maintain the 50 V rating while extending lifetime from 2000 hours to 5000 hours at 105°C. Both are Active products with ROHS3 compliance and adequate inventory availability.

For Applications Requiring Higher Voltage Margin

100YXJ3.3M5X11 (Rubycon) provides a voltage upgrade to 100 V while maintaining the same physical footprint and capacitance. This part also offers 5000-hour lifetime at 105°C and is suitable for designs requiring additional voltage headroom. Active product status and ROHS3 compliance are maintained.

Obsolete Part Considerations

UPM1H3R3MDD, UPS1H3R3MDD, and UPM2A3R3MDD are classified as Obsolete. These parts should not be selected for new designs. Existing inventory may be available for legacy system support only.

Frequently Asked Questions (FAQ)

Q: Can ESH335M050AC3AA replace 335CKE050M directly on the PCB?

A: Yes. ESH335M050AC3AA is a direct substitute with identical capacitance (3.3 µF), voltage rating (50 V), tolerance (±20%), physical dimensions (5.00mm diameter, 12.50mm height), and lead spacing (2.00mm). No PCB modifications are required.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes (ESH335M050AC3AA, UPM1H3R3MDD, UPS1H3R3MDD) maintain all electrical and mechanical specifications of the original part. Upgrade substitutes (50YXJ3.3M5X11, 100YXJ3.3M5X11, UPM2A3R3MDD) offer enhanced performance through extended lifetime or higher voltage rating while maintaining physical compatibility.

Q: Can I use 100YXJ3.3M5X11 (100V) in place of 335CKE050M (50V)?

A: Yes. A higher voltage-rated capacitor is electrically compatible in a 50 V application. The 100YXJ3.3M5X11 maintains identical capacitance, tolerance, and physical dimensions. This substitution provides additional voltage margin and extended 5000-hour lifetime.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original 335CKE050M specification.

Q: Why are UPM1H3R3MDD and UPS1H3R3MDD marked as Obsolete?

A: These Nichicon parts are no longer in active production. While inventory may be available, they should not be specified for new designs. Active alternatives such as ESH335M050AC3AA or Rubycon YXJ series parts are recommended.

Q: What is the significance of ripple current ratings in substitution?

A: Ripple current capacity indicates the maximum AC current the capacitor can handle at specified frequency. While substitute parts may have different ripple current values, all listed substitutes are mechanically and electrically compatible for the same application class. Verify ripple current requirements against your specific circuit design.

Q: Can I use parts with extended temperature range (-55°C to 105°C) in place of -40°C to 105°C rated parts?

A: Yes. An extended operating temperature range is compatible with applications requiring the narrower range. UPM1H3R3MDD and UPS1H3R3MDD offer -55°C to 105°C operation, providing additional low-temperature capability.

Q: What inventory status should I consider for production?

A: ESH335M050AC3AA (KEMET) offers the highest inventory with 8794 units in stock. Rubycon YXJ series parts (50YXJ3.3M5X11, 50YXJ3R3M5X11, 100YXJ3.3M5X11) provide 2940-3968 units each. Nichicon obsolete parts have limited inventory and should not be relied upon for ongoing production.

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