337CKE010M Equivalent & Substitute Parts Reference

Part Overview

The 337CKE010M is a 330 µF, 10 V aluminum electrolytic capacitor in radial can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as Active status and is designed for bypass and decoupling applications. The part features a rated lifetime of 2000 hours at 105°C with an ESR of 954.5 mOhm at 120 Hz.

Substitute parts are necessary when the original 337CKE010M becomes unavailable due to supply constraints, inventory depletion, or when design requirements permit alternative manufacturers while maintaining electrical and mechanical compatibility. All substitute relationships documented here are based strictly on matching capacitance, voltage rating, tolerance, package dimensions, and operating temperature range.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	330	µF	Must match exactly
Voltage - Rated	10	V	Must match or exceed
Tolerance	±20%	%	Must match
Operating Temperature Range	-40°C ~ 105°C	°C	Must match or exceed
Lead Spacing	0.098" (2.50mm)	inches (mm)	Must match for PCB compatibility
Size / Dimension	0.248" Dia (6.30mm)	inches (mm)	Must match for mechanical fit
Height - Seated (Max)	0.492" (12.50mm)	inches (mm)	Must match for clearance
Mounting Type	Through Hole	-	Must match
Package / Case	Radial, Can	-	Must match
Polarization	Polar	-	Must match
RoHS Status	ROHS3 Compliant	-	Regulatory requirement

Substitute Part Grouping Explanation

Substitute parts for the 337CKE010M are classified into three categories based on electrical and mechanical compatibility:

Direct Substitutes (Same Voltage Rating - 10V): Direct substitutes maintain the same 10 V rated voltage, 330 µF capacitance, ±20% tolerance, and identical physical dimensions (0.248" diameter, 0.492" height, 0.098" lead spacing). These parts are interchangeable at the PCB level without design modification. Differences in lifetime rating (2000 Hrs to 7000 Hrs @ 105°C) and ripple current handling do not affect substitutability but may influence performance margin selection.

Upgrade Substitutes (Higher Voltage Rating - 16V): Upgrade substitutes feature a 16 V rated voltage while maintaining 330 µF capacitance, ±20% tolerance, and identical physical dimensions. These parts are electrically compatible in circuits designed for 10 V operation, as they provide additional voltage margin. The higher voltage rating does not compromise functionality in 10 V applications.

Similar Substitutes (Same Voltage, Different Thermal Rating): Similar substitutes match the 10 V voltage rating and 330 µF capacitance but feature different operating temperature ranges or lifetime ratings. The UVR1A331MED operates to 85°C maximum (versus 105°C for the main part) and is classified as Obsolete status.

All substitute parts share the following mandatory parameters with the 337CKE010M:

Capacitance: 330 µF
Tolerance: ±20%
Lead Spacing: 0.098" (2.50mm)
Size / Dimension: 0.248" Dia (6.30mm)
Height - Seated (Max): 0.492" (12.50mm)
Mounting Type: Through Hole
Package / Case: Radial, Can
Polarization: Polar
RoHS Status: ROHS3 Compliant

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Tolerance (%)	Lifetime @ 105°C (Hrs)	Operating Temp (°C)	Lead Spacing (mm)	Diameter (mm)	Height (mm)	Product Status
337CKE010M	Cornell Dubilier / Illinois Capacitor	CKE	330	10	±20	2000	-40 ~ 105	2.50	6.30	12.50	Active
10ZLH330MEFC6.3X11	Rubycon	ZLH	330	10	±20	6000	-40 ~ 105	2.50	6.30	12.50	Active
10ZLJ330M6.3X11	Rubycon	ZLJ	330	10	±20	7000	-40 ~ 105	2.50	6.30	12.50	Active
EKZN100ELL331MF11D	Chemi-Con	KZN	330	10	±20	7000	-40 ~ 105	2.50	6.30	12.50	Active
16YXJ330M6.3X11	Rubycon	YXJ	330	16	±20	7000	-40 ~ 105	2.50	6.30	12.50	Active
16ZLQ330MEFC6.3X11	Rubycon	ZLQ	330	16	±20	3000	-40 ~ 105	2.50	6.30	12.50	Active
UVR1A331MED	Nichicon	UVR	330	10	±20	2000	-40 ~ 85	2.50	6.30	12.50	Obsolete

Engineering Selection Recommendations

Direct Substitutes - Recommended for Standard Applications:

The parts 10ZLH330MEFC6.3X11 (Rubycon ZLH series), 10ZLJ330M6.3X11 (Rubycon ZLJ series), and EKZN100ELL331MF11D (Chemi-Con KZN series) are recommended as direct substitutes for the 337CKE010M. All three maintain Active product status, ROHS3 compliance, and identical electrical and mechanical specifications. These parts provide extended lifetime ratings (6000 to 7000 hours at 105°C) compared to the original 2000-hour rating, offering improved reliability margin without design modification.

Upgrade Substitutes - For Enhanced Voltage Margin:

The parts 16YXJ330M6.3X11 (Rubycon YXJ series) and 16ZLQ330MEFC6.3X11 (Rubycon ZLQ series) are upgrade substitutes with 16 V rated voltage. These parts are suitable for applications where additional voltage headroom is beneficial. Both maintain Active status and ROHS3 compliance. The 16YXJ330M6.3X11 offers 7000-hour lifetime at 105°C, while the 16ZLQ330MEFC6.3X11 provides 3000-hour lifetime at 105°C.

Similar Substitutes - Not Recommended:

The UVR1A331MED (Nichicon UVR series) is classified as Obsolete and features a reduced operating temperature range (-40°C to 85°C maximum) compared to the 337CKE010M (-40°C to 105°C). This part is not recommended for new designs or as a primary substitute due to its obsolete status and thermal limitation.

Compliance Considerations:

All recommended substitute parts maintain ROHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification, matching the regulatory profile of the original 337CKE010M.

Frequently Asked Questions (FAQ)

Q1: Can I use a 16V rated capacitor in place of a 10V rated capacitor?

A: Yes. The 16YXJ330M6.3X11 and 16ZLQ330MEFC6.3X11 are electrically compatible in circuits designed for 10 V operation. A higher voltage rating provides additional safety margin and does not degrade performance. However, the circuit must be designed to accommodate the substitute part's physical dimensions, which in this case are identical to the original.

Q2: What is the difference between the direct substitutes 10ZLH330MEFC6.3X11, 10ZLJ330M6.3X11, and EKZN100ELL331MF11D?

A: All three parts maintain 330 µF capacitance, 10 V voltage rating, ±20% tolerance, and identical physical dimensions. The primary differences are manufacturer (Rubycon versus Chemi-Con) and lifetime rating at 105°C: 10ZLH330MEFC6.3X11 provides 6000 hours, while 10ZLJ330M6.3X11 and EKZN100ELL331MF11D both provide 7000 hours. Selection among these three depends on supplier availability and procurement preference.

Q3: Are the lead spacing and physical dimensions identical across all substitute parts?

A: Yes. All substitute parts listed maintain the same lead spacing (0.098" / 2.50mm), diameter (0.248" / 6.30mm), and maximum seated height (0.492" / 12.50mm). This ensures direct PCB compatibility without layout modification.

Q4: Why is the UVR1A331MED listed as a substitute if it is Obsolete?

A: The UVR1A331MED is included in the reference for historical traceability and to document why it is not recommended for new applications. Its Obsolete status and reduced operating temperature range (85°C maximum versus 105°C) make it unsuitable as a primary substitute. It is retained in this reference only to prevent accidental selection.

Q5: What does ±20% tolerance mean for capacitance?

A: The ±20% tolerance indicates that the actual capacitance value may vary between 264 µF and 396 µF (330 µF ± 20%). All substitute parts share this same tolerance specification with the 337CKE010M, ensuring equivalent circuit behavior.

Q6: Can I substitute the 337CKE010M with any of these parts without circuit redesign?

A: Yes, for direct substitutes (10V rated parts) and upgrade substitutes (16V rated parts). All maintain identical capacitance, tolerance, lead spacing, and physical dimensions. No PCB layout or schematic modification is required. The UVR1A331MED is excluded due to its Obsolete status and thermal limitation.

Q7: What is ESR and why does it vary among substitute parts?

A: ESR (Equivalent Series Resistance) represents the internal resistance of the capacitor at a specified frequency. The 337CKE010M specifies 954.5 mOhm at 120 Hz. Substitute parts may have different ESR values, which affects ripple current handling and heat generation. Lower ESR generally indicates better high-frequency performance. ESR values not provided in the substitute part data indicate that this parameter was not specified by the manufacturer for those parts.

Q8: What is the significance of "Ripple Current @ 120 Hz" and "Ripple Current @ 100 kHz"?

A: Ripple current ratings indicate the maximum AC current the capacitor can handle at specified frequencies without exceeding temperature limits. The 337CKE010M handles 240 mA at 120 Hz and 396 mA at 100 kHz. Substitute parts may have different ripple current ratings, reflecting their thermal design. Higher ripple current capability indicates better performance in high-current applications.

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