SS330M016ST Equivalent & Substitute Parts Reference

Part Overview

The SS330M016ST is a 33 µF, 16 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 procurement continuity. The part operates across a temperature range of -40°C to 85°C and is rated for 1000 hours at 85°C with general-purpose applications. ROHS3 compliance and EAR99 export classification apply to this component.

Key Parameters

Parameter	Value	Unit
Capacitance	33	µF
Voltage - Rated	16	V
Tolerance	±20%	-
Operating Temperature Range	-40°C to 85°C	-
Lifetime @ 85°C	1000	Hrs
Lead Spacing	0.079"	(2.00 mm)
Diameter	0.197"	(5.00 mm)
Mounting Type	Through Hole	-
Package / Case	Radial, Can	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the SS330M016ST is determined by strict equivalence in the following parameters:

Critical Matching Parameters:

Capacitance: 33 µF (exact match required)
Voltage Rating: 16 V (exact match required)
Tolerance: ±20% (exact match required)
Operating Temperature Range: -40°C to 85°C (exact match required)
Lead Spacing: 0.079" (2.00 mm) (exact match required)
Diameter: 0.197" (5.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

Secondary Parameters (Allowable Variation):

Lifetime @ 85°C: Equal or greater than 1000 hours
ESR (Equivalent Series Resistance): Lower values indicate improved performance
Height - Seated (Max): Physical space constraints may apply to specific designs
Ripple Current: Higher values indicate improved performance capability

All substitute parts listed below meet or exceed the critical matching parameters and maintain compatibility with the original SS330M016ST specification.

Parameter Comparison

Parameter	SS330M016ST (Main)	SK330M016ST	ECA-1CM330	ECE-A1CKA330
Manufacturer	Cornell Dubilier Electronics	Cornell Dubilier Electronics	Panasonic Electronic Components	Panasonic Electronic Components
Series	SS	SK	M-A	KA
Product Status	Obsolete	Active	Active	Active
Capacitance	33 µF	33 µF	33 µF	33 µF
Voltage - Rated	16 V	16 V	16 V	16 V
Tolerance	±20%	±20%	±20%	±20%
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Lifetime @ 85°C	1000 Hrs	2000 Hrs	2000 Hrs	1000 Hrs
ESR @ 120Hz	6.84 Ohm	6.43 Ohm	Not Specified	Not Specified
Lead Spacing	0.079" (2.00 mm)	0.079" (2.00 mm)	0.079" (2.00 mm)	0.079" (2.00 mm)
Diameter	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Height - Seated (Max)	0.276" (7.00 mm)	0.512" (13.00 mm)	0.472" (12.00 mm)	0.276" (7.00 mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Ripple Current @ 120 Hz	57 mA	Not Specified	110 mA	60 mA
Ripple Current @ 1 kHz / 10 kHz	62.7 mA @ 1 kHz	Not Specified	187 mA @ 10 kHz	102 mA @ 10 kHz

Engineering Selection Recommendations

SK330M016ST (Cornell Dubilier Electronics)

The SK330M016ST is an active-status substitute from the same manufacturer. It maintains identical electrical specifications (33 µF, 16 V, ±20% tolerance) and mechanical compatibility (lead spacing, diameter, through-hole mounting). The SK series offers improved lifetime performance at 2000 hours versus 1000 hours for the SS series, with lower ESR (6.43 Ohm versus 6.84 Ohm). Physical height increases to 0.512" (13.00 mm) compared to 0.276" (7.00 mm) for the original part. ROHS3 compliance and EAR99 classification are maintained. This substitute is recommended when space constraints do not restrict the increased height dimension.

ECA-1CM330 (Panasonic Electronic Components)

The ECA-1CM330 is an active-status substitute from Panasonic. Electrical specifications match exactly (33 µF, 16 V, ±20% tolerance). Mechanical compatibility is maintained across all critical dimensions (lead spacing, diameter, through-hole mounting). The M-A series provides 2000-hour lifetime at 85°C with significantly higher ripple current capability (110 mA @ 120 Hz, 187 mA @ 10 kHz). Physical height is 0.472" (12.00 mm). ROHS3 compliance and EAR99 classification apply. This substitute is recommended for applications requiring enhanced ripple current performance.

ECE-A1CKA330 (Panasonic Electronic Components)

The ECE-A1CKA330 is an active-status substitute from Panasonic. Electrical specifications match exactly (33 µF, 16 V, ±20% tolerance). Mechanical compatibility is maintained across all critical dimensions (lead spacing, diameter, through-hole mounting). The KA series maintains 1000-hour lifetime at 85°C, matching the original SS series. Physical height is 0.276" (7.00 mm), identical to the original part. Ripple current capability is 60 mA @ 120 Hz and 102 mA @ 10 kHz. ROHS3 compliance and EAR99 classification apply. This substitute is recommended for space-constrained applications requiring form-factor equivalence.

Frequently Asked Questions (FAQ)

Q: Can SK330M016ST be used as a direct replacement for SS330M016ST?

A: Yes. The SK330M016ST meets all critical electrical and mechanical parameters. The primary difference is increased physical height (0.512" versus 0.276"). Verify available PCB space before substitution.

Q: What is the advantage of ECA-1CM330 over the original SS330M016ST?

A: The ECA-1CM330 provides doubled lifetime (2000 hours versus 1000 hours at 85°C) and significantly higher ripple current capability (110 mA @ 120 Hz versus 57 mA). Physical height increases to 0.472" (12.00 mm).

Q: Is ECE-A1CKA330 suitable for space-constrained designs?

A: Yes. The ECE-A1CKA330 maintains the original physical height of 0.276" (7.00 mm) while providing active-status availability from Panasonic. Lifetime remains at 1000 hours at 85°C.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitutes (SK330M016ST, ECA-1CM330, ECE-A1CKA330) are ROHS3 compliant and carry EAR99 export classification, matching the original SS330M016ST.

Q: What is the lead spacing for all parts in this comparison?

A: All parts, including the main SS330M016ST and all substitutes, maintain 0.079" (2.00 mm) lead spacing and 0.197" (5.00 mm) diameter, ensuring PCB footprint compatibility.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical interchangeability is confirmed for all listed substitutes. Physical height variation must be evaluated against available PCB space. Lead spacing and diameter are identical across all parts.

Q: Which substitute offers the best performance upgrade?

A: The ECA-1CM330 provides the highest ripple current capability (187 mA @ 10 kHz) and doubled lifetime (2000 hours at 85°C), representing the most significant performance enhancement.

Q: Are there inventory considerations for these substitutes?

A: SK330M016ST: 1172 pcs in stock. ECA-1CM330: 19777 pcs in stock. ECE-A1CKA330: 2886 pcs in stock. ECA-1CM330 offers the highest inventory availability.

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