336SAK035M Equivalent & Substitute Parts Reference

Part Overview

The Cornell Dubilier 336SAK035M is a 33 µF, 35 V aluminum electrolytic capacitor in radial, can package configuration. This component is classified as Active product status and is designed for general-purpose applications requiring through-hole mounting. The 336SAK035M features a 2000-hour lifetime rating at 85°C with an ESR of 70.33 Ohm @ 120Hz, making it suitable for audio and general industrial circuits where moderate ripple current handling is required.

Equivalent and substitute parts are necessary when the original 336SAK035M becomes unavailable due to supply constraints, obsolescence of competing series, or when design requirements call for enhanced performance characteristics such as extended temperature range or improved ripple current capacity.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	33	µF	Must match exactly
Voltage - Rated	35	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)	0.413" (10.50mm)	-	Should not exceed available space
Operating Temperature	-40°C ~ 85°C	-	Must meet or exceed application range
Lifetime @ Temp.	2000 Hrs @ 85°C	-	Determines service life expectations
RoHS Status	ROHS3 Compliant	-	Regulatory requirement

Substitute Part Grouping Explanation

Substitution of the 336SAK035M is determined by strict adherence to the following electrical and mechanical parameters:

Mandatory Matching Parameters:

Capacitance: 33 µF (exact match required)
Voltage Rating: 35 V minimum (equal or higher acceptable)
Tolerance: ±20% (equal or tighter acceptable)
Polarization: Polar (must match)
Mounting Type: Through Hole (must match)
Package Type: Radial, Can (must match)
Lead Spacing: 0.079" (2.00mm) (must match for PCB compatibility)
Diameter: 0.197" (5.00mm) (must match for mechanical fit)

Performance Parameters Affecting Substitution:

Operating Temperature Range: Minimum -40°C to 85°C (higher upper limit acceptable)
Lifetime Rating: 2000 Hrs @ 85°C (higher ratings acceptable)
Ripple Current Capacity: 100 mA @ 120 Hz, 200 mA @ 10 kHz (higher values acceptable)

Compliance Requirements:

RoHS3 Compliant (mandatory)
REACH Unaffected (mandatory)

The substitute parts listed below meet all mandatory parameters. Height variations are acceptable provided they do not exceed available PCB clearance. Parts with enhanced temperature ratings or extended lifetime are classified as upgrades and provide improved reliability margins.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	Height Max (mm)	Operating Temp (°C)	Lifetime @ Temp	Product Status	Ripple Current @ 120Hz (mA)
336SAK035M	Cornell Dubilier / Illinois Capacitor	33	35	±20%	10.50	-40 ~ 85	2000 Hrs @ 85°C	Active	100
UFW1V330MDD	Nichicon	33	35	±20%	12.50	-40 ~ 85	2000 Hrs @ 85°C	Obsolete	105
UKW1V330MDD	Nichicon	33	35	±20%	11.00	-40 ~ 85	2000 Hrs @ 85°C	Obsolete	105
EEU-EB1V330S	Panasonic Electronic Components	33	35	±20%	12.00	-40 ~ 105	5000 Hrs @ 105°C	Active	46
EKZE350ELL330ME11D	Chemi-Con	33	35	±20%	12.50	-40 ~ 105	2000 Hrs @ 105°C	Active	100
UFW1H330MDD	Nichicon	33	50	±20%	12.50	-40 ~ 85	2000 Hrs @ 85°C	Obsolete	120
UHE1V330MDD	Nichicon	33	35	±20%	11.00	-40 ~ 105	5000 Hrs @ 105°C	Obsolete	115.5
UKW1H330MDD	Nichicon	33	50	±20%	11.00	-40 ~ 85	2000 Hrs @ 85°C	Obsolete	120
UPW1V330MDD	Nichicon	33	35	±20%	11.00	-55 ~ 105	2000 Hrs @ 105°C	Obsolete	54

Engineering Selection Recommendations

Direct Equivalents (Same Electrical Specifications):

UFW1V330MDD and UKW1V330MDD are direct electrical equivalents to the 336SAK035M, matching all core parameters: 33 µF capacitance, 35 V rating, ±20% tolerance, and 2000-hour lifetime at 85°C. Both are classified as Obsolete products. UFW1V330MDD has a maximum height of 12.50 mm, while UKW1V330MDD is 11.00 mm. Both exceed the original 10.50 mm height of the 336SAK035M and require verification of available PCB clearance before selection.

Active Product Alternatives (Recommended for New Designs):

EEU-EB1V330S (Panasonic) and EKZE350ELL330ME11D (Chemi-Con) are both Active products meeting all mandatory parameters. EEU-EB1V330S provides extended temperature operation to 105°C and 5000-hour lifetime at 105°C, representing enhanced reliability. EKZE350ELL330ME11D maintains 2000-hour lifetime at 105°C with equivalent ripple current handling to the original part (100 mA @ 120 Hz). Both are ROHS3 compliant and REACH unaffected.

Higher Voltage Alternatives:

UFW1H330MDD and UKW1H330MDD provide 50 V rating with identical 33 µF capacitance. These are suitable for applications requiring voltage margin above 35 V. Both are Obsolete products with 2000-hour lifetime at 85°C.

Extended Temperature Range Option:

UPW1V330MDD extends operating temperature to -55°C to 105°C with 2000-hour lifetime at 105°C. This part is Obsolete but suitable for applications requiring sub-zero operation.

Selection Basis:

For new designs and ongoing production, EEU-EB1V330S or EKZE350ELL330ME11D are recommended due to Active product status and regulatory compliance. For direct replacement in existing designs, UFW1V330MDD or UKW1V330MDD provide electrical equivalence, subject to PCB height clearance verification.

Frequently Asked Questions (FAQ)

Q: Can UFW1V330MDD or UKW1V330MDD be used as direct replacements for 336SAK035M?

A: Yes, both parts are electrical equivalents with matching 33 µF capacitance, 35 V rating, and ±20% tolerance. However, UFW1V330MDD has a maximum height of 12.50 mm compared to the original 10.50 mm, and UKW1V330MDD is 11.00 mm. PCB clearance must be verified before installation.

Q: What is the difference between direct equivalents and upgrade parts?

A: Direct equivalents match all electrical and mechanical specifications of the original part. Upgrade parts exceed the original specifications in areas such as operating temperature range, lifetime rating, or ripple current capacity, providing enhanced performance margins. Upgrade parts are suitable for applications requiring improved reliability or extended service life.

Q: Are EEU-EB1V330S and EKZE350ELL330ME11D interchangeable with 336SAK035M?

A: Both parts meet all mandatory substitution parameters: 33 µF capacitance, 35 V minimum rating, ±20% tolerance, through-hole radial can package, and 2.00 mm lead spacing. Both are ROHS3 compliant and REACH unaffected. Height differences (12.00 mm and 12.50 mm respectively, versus 10.50 mm original) require PCB clearance verification. Both are Active products, making them suitable for new designs.

Q: Why are some substitute parts classified as Obsolete?

A: Obsolete classification indicates the manufacturer has discontinued production. These parts may still be available from inventory but are not recommended for new designs. Active products such as EEU-EB1V330S and EKZE350ELL330ME11D are preferred for ongoing production and new applications.

Q: Can a 50 V rated part (UFW1H330MDD or UKW1H330MDD) replace a 35 V part?

A: Yes. Higher voltage ratings are acceptable substitutes for lower voltage applications. A 50 V capacitor can be used in a 35 V circuit without electrical degradation. However, physical dimensions must still be verified for PCB compatibility.

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

A: Tolerance specifies the acceptable deviation from the nominal 33 µF value. ±20% means the actual capacitance can range from 26.4 µF to 39.6 µF and still meet specification. All listed substitutes maintain this tolerance or tighter, ensuring circuit compatibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the significance of ripple current ratings?

A: Ripple current capacity indicates the maximum AC current the capacitor can handle without exceeding temperature limits. Higher ripple current ratings provide design margin for applications with significant AC ripple. The original 336SAK035M handles 100 mA @ 120 Hz and 200 mA @ 10 kHz. Substitute parts with equal or higher ripple current ratings are fully compatible.

Q: Should I select an upgrade part with extended temperature range?

A: Extended temperature range (to 105°C) and longer lifetime ratings (5000 hours) provide reliability margin for demanding applications. Selection depends on actual operating conditions and required service life. For standard applications operating within -40°C to 85°C, direct equivalents are sufficient.

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