SS330M010ST Equivalent & Substitute Parts Reference

Part Overview

The SS330M010ST is a 33 µF, 10 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 1000 hours at 85°C, serving general-purpose applications requiring through-hole radial capacitor mounting.

Key Parameters

Parameter	Value	Unit
Capacitance	33	µF
Voltage - Rated	10	V
Tolerance	±20%	-
ESR @ 120Hz	8.04	Ohm
Lifetime @ 85°C	1000	Hrs
Operating Temperature Range	-40°C ~ 85°C	-
Ripple Current @ 120 Hz	47	mA
Ripple Current @ 1 kHz	51.7	mA
Lead Spacing	0.079" (2.00mm)	-
Diameter	0.197" (5.00mm)	-
Height - Seated (Max)	0.276" (7.00mm)	-
Mounting Type	Through Hole	-
Package / Case	Radial, Can	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the SS330M010ST is determined by the following core parameters:

Primary Matching Criteria:

Capacitance: 33 µF (exact match required)
Voltage Rating: 10 V minimum (equal or higher voltage rating acceptable)
Tolerance: ±20% (standard tolerance match)
Mounting Type: Through Hole (mechanical compatibility)
Package: Radial, Can (form factor compatibility)
Lead Spacing: 0.079" (2.00mm) (PCB footprint compatibility)
Diameter: 0.197" (5.00mm) (mechanical fit)

Secondary Compatibility Parameters:

Operating Temperature Range: -40°C to 85°C minimum
Polarization: Polar (required for electrolytic capacitors)
RoHS Compliance: ROHS3 Compliant

Substitute parts are grouped into three categories based on their relationship to the main part:

Direct Equivalents: Parts with identical electrical specifications and form factor, differing only in manufacturer or series designation.

Similar Substitutes: Parts meeting all primary matching criteria with variations in lifetime rating, ESR, or ripple current capacity within acceptable operational bounds.

Upgrade Substitutes: Parts exceeding the main part specifications in voltage rating or operating temperature range, providing enhanced performance margins while maintaining mechanical and electrical compatibility.

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	ESR @ 120Hz (Ohm)	Lifetime @ 85°C (Hrs)	Ripple Current @ 120Hz (mA)	Height (mm)	Status
SS330M010ST	Cornell Dubilier Electronics	33	10	±20%	8.04	1000	47	7.00	Obsolete
SK330M010ST	Cornell Dubilier Electronics	33	10	±20%	7.64	2000	80	13.00	Active
10MS533MEFC5X5	Rubycon	33	10	±20%	-	1000	45	6.50	Obsolete
ECE-A1AKS330	Panasonic Electronic Components	33	10	±20%	-	1000	43	6.00	Active
ECE-A1CKA330	Panasonic Electronic Components	33	16	±20%	-	1000	60	7.00	Active
EEA-GA1A330	Panasonic Electronic Components	33	10	±20%	-	1000	50	7.00	Active
ECA-1CM330	Panasonic Electronic Components	33	16	±20%	-	2000	110	12.00	Active

Engineering Selection Recommendations

For Direct Replacement (Mechanical and Electrical Equivalence):

SK330M010ST (Cornell Dubilier Electronics, Active) provides the closest functional equivalent to SS330M010ST. Both parts share identical capacitance, voltage rating, tolerance, and lead spacing. SK330M010ST offers improved specifications with doubled lifetime rating (2000 hours at 85°C versus 1000 hours) and superior ripple current capacity (80 mA at 120 Hz versus 47 mA). Height difference (13.00mm versus 7.00mm) requires PCB layout verification. ROHS3 compliance and active product status ensure long-term availability.

For Space-Constrained Applications:

ECE-A1AKS330 (Panasonic Electronic Components, Active) matches all primary electrical parameters with reduced height (6.00mm). This part accommodates designs with vertical space limitations while maintaining 33 µF capacitance and 10 V rating. Active status and ROHS3 compliance support production continuity.

For Enhanced Voltage Margin:

ECE-A1CKA330 (Panasonic Electronic Components, Active) and ECA-1CM330 (Panasonic Electronic Components, Active) both provide 16 V rating, offering 60% voltage headroom above the 10 V requirement. These parts are suitable for applications requiring additional safety margin or operating in elevated voltage environments. ECA-1CM330 additionally provides 2000-hour lifetime rating and significantly higher ripple current capacity (110 mA at 120 Hz).

For Extended Temperature Operation:

EEA-GA1A330 (Panasonic Electronic Components, Active) extends operating temperature range to -55°C to 105°C with 1000-hour lifetime at 105°C, supporting applications requiring enhanced thermal performance. Mechanical compatibility and ROHS3 compliance are maintained.

Obsolete Part Alternatives:

10MS533MEFC5X5 (Rubycon, Obsolete) shares equivalent specifications with SS330M010ST but carries obsolete status, limiting future availability. This part is suitable only for legacy system maintenance where active alternatives are unavailable.

All recommended substitutes maintain through-hole radial mounting, 2.00mm lead spacing, and 5.00mm diameter for PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can SK330M010ST replace SS330M010ST in existing designs without PCB modification?

A: SK330M010ST maintains identical lead spacing (2.00mm) and diameter (5.00mm), ensuring footprint compatibility. However, height increases from 7.00mm to 13.00mm. PCB layout verification is required to confirm vertical clearance. If height constraints exist, alternative parts with reduced dimensions should be evaluated.

Q: What is the primary advantage of ECE-A1CKA330 over SS330M010ST?

A: ECE-A1CKA330 provides 16 V rating compared to 10 V, delivering 60% voltage safety margin. This upgrade is beneficial for applications subject to voltage transients or operating near maximum rated voltage. Mechanical dimensions remain compatible (7.00mm height, 5.00mm diameter, 2.00mm lead spacing).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 Compliant status, meeting environmental and regulatory requirements equivalent to the original SS330M010ST.

Q: Which substitute offers the longest operational lifetime?

A: SK330M010ST and ECA-1CM330 both provide 2000-hour lifetime at 85°C, double the 1000-hour rating of SS330M010ST. ECA-1CM330 additionally supports 2000-hour operation at 85°C with higher ripple current capacity.

Q: Can EEA-GA1A330 operate at temperatures below -40°C?

A: Yes. EEA-GA1A330 extends the lower operating temperature limit to -55°C, compared to -40°C for SS330M010ST. This part is suitable for applications requiring sub-zero temperature operation.

Q: What is the difference between "Similar" and "Upgrade" substitute classifications?

A: Similar substitutes maintain equivalent electrical specifications (capacitance, voltage, tolerance) with variations in secondary parameters such as lifetime or ripple current. Upgrade substitutes exceed original specifications in voltage rating or operating temperature range, providing enhanced performance margins while maintaining mechanical compatibility.

Q: Is 10MS533MEFC5X5 recommended for new designs?

A: No. 10MS533MEFC5X5 carries obsolete status, limiting long-term availability and supply chain reliability. Active alternatives such as SK330M010ST, ECE-A1AKS330, or ECA-1CM330 are recommended for new designs and production continuity.

Q: Do all substitute parts use identical lead spacing for PCB footprints?

A: Yes. All substitute parts maintain 0.079" (2.00mm) lead spacing and 0.197" (5.00mm) diameter, ensuring PCB footprint compatibility. Height variations require layout verification but do not affect electrical connection points.

Q: Which substitute provides the highest ripple current capacity?

A: ECA-1CM330 supports 110 mA ripple current at 120 Hz, the highest among all listed substitutes. This part is suitable for applications with demanding ripple current requirements or high-frequency switching environments.

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