337SAK035M Equivalent & Substitute Parts Reference

Part Overview

The 337SAK035M is a 330 µF, 35 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as Active product status and is designed for general purpose applications requiring through-hole mounting. The SAK series operates across -40°C to 85°C with a rated lifetime of 2000 hours at 85°C. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support applications requiring enhanced performance characteristics such as extended lifetime ratings or improved thermal performance.

Key Parameters

Parameter	Specification
Capacitance	330 µF
Voltage Rating	35 V
Tolerance	±20%
Polarization	Polar
Package Type	Radial, Can
Mounting Type	Through Hole
Lead Spacing	0.197" (5.00 mm)
Size / Diameter	0.394" (10.00 mm)
Operating Temperature Range	-40°C to 85°C (base); -40°C to 105°C (enhanced)
Lifetime Rating	2000 Hrs @ 85°C (base); 2000-10000 Hrs @ 105°C (enhanced)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 337SAK035M is determined by strict equivalence across the following mandatory parameters:

Core Electrical Parameters (Non-Negotiable):

Capacitance: 330 µF (exact match required)
Voltage Rating: 35 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)

Core Mechanical Parameters (Non-Negotiable):

Package Type: Radial, Can (exact match required)
Mounting Type: Through Hole (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Size / Diameter: 0.394" (10.00 mm) (exact match required)

Performance Parameters (Substitution Basis):

Operating Temperature Range: -40°C to 85°C minimum; extended to 105°C permitted
Lifetime Rating: 2000 Hrs @ 85°C minimum; extended ratings at 105°C permitted
ESR / Impedance: Lower values indicate improved performance; not a restriction criterion
Ripple Current: Higher values indicate improved performance; not a restriction criterion

All substitute parts listed meet or exceed the core electrical and mechanical requirements. Enhanced performance characteristics (lower ESR, higher ripple current capacity, extended lifetime) represent upgrades and do not restrict substitution eligibility.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Height (Max)	Operating Temp	Lifetime @ Temp	Ripple Current @ 120 Hz	Product Status
337SAK035M	Cornell Dubilier / Illinois Capacitor	SAK	330 µF	35 V	±20%	0.551" (14.00 mm)	-40°C ~ 85°C	2000 Hrs @ 85°C	460 mA	Active
337CKE035M	Cornell Dubilier / Illinois Capacitor	CKE	330 µF	35 V	±20%	0.551" (14.00 mm)	-40°C ~ 105°C	2000 Hrs @ 105°C	420 mA	Active
B41821A7337M000	EPCOS - TDK Electronics	B41821	330 µF	35 V	±20%	0.531" (13.50 mm)	-40°C ~ 85°C	2000 Hrs @ 85°C	490 mA	Active
ECA-1VM331	Panasonic Electronic Components	M-A	330 µF	35 V	±20%	0.531" (13.50 mm)	-40°C ~ 85°C	2000 Hrs @ 85°C	440 mA	Active
35YXJ330M10X12.5	Rubycon	YXJ	330 µF	35 V	±20%	0.551" (14.00 mm)	-40°C ~ 105°C	10000 Hrs @ 105°C	605.5 mA	Active
35ZLH330MEFC10X12.5	Rubycon	ZLH	330 µF	35 V	±20%	0.551" (14.00 mm)	-40°C ~ 105°C	10000 Hrs @ 105°C	731.5 mA	Active
35ZLQ330MEFC10X12.5	Rubycon	ZLQ	330 µF	35 V	±20%	0.551" (14.00 mm)	-40°C ~ 105°C	5000 Hrs @ 105°C	808.5 mA	Active
35ZLS330MEFC10X12.5	Rubycon	ZLS	330 µF	35 V	±20%	0.551" (14.00 mm)	-40°C ~ 105°C	6000 Hrs @ 105°C	682 mA	Active
ECA-1VHG331	Panasonic Electronic Components	NHG-A	330 µF	35 V	±20%	0.531" (13.50 mm)	-55°C ~ 105°C	2000 Hrs @ 105°C	350 mA	Active
EEU-HD1V331	Panasonic Electronic Components	HD	330 µF	35 V	±20%	0.551" (14.00 mm)	-55°C ~ 105°C	2000 Hrs @ 105°C	350 mA	Active
ESH337M035AH1AA	KEMET	ESH	330 µF	35 V	±20%	0.531" (13.50 mm)	-40°C ~ 105°C	2000 Hrs @ 105°C	Not Specified	Active

Engineering Selection Recommendations

All listed substitute parts are Active product status and ROHS3 compliant, meeting current regulatory requirements. Selection among equivalent parts should be based on the following engineering criteria derived from provided specifications:

Direct Equivalents (Identical Performance Profile):

337CKE035M: Same manufacturer as primary part; enhanced operating temperature to 105°C; suitable for applications requiring improved thermal margin within same lifetime rating.
B41821A7337M000: EPCOS / TDK Electronics alternative; comparable ESR and ripple current; slightly reduced height (0.531" vs 0.551") permits space-constrained layouts.
ECA-1VM331: Panasonic equivalent; standard performance tier; reduced height accommodates compact PCB designs.

Enhanced Performance Alternatives (Extended Lifetime):

35YXJ330M10X12.5, 35ZLH330MEFC10X12.5, 35ZLS330MEFC10X12.5: Rubycon series with extended lifetime ratings (5000-10000 hours @ 105°C); higher ripple current capacity; suitable for applications requiring long-term reliability or high-frequency ripple environments.

Extended Temperature Range Alternatives:

ECA-1VHG331, EEU-HD1V331: Panasonic series with -55°C lower operating limit; suitable for industrial or automotive applications requiring expanded temperature performance.
ESH337M035AH1AA: KEMET alternative with 105°C upper temperature limit; meets enhanced thermal requirements.

All parts maintain identical lead spacing (5.00 mm) and diameter (10.00 mm), ensuring PCB footprint compatibility. Height variations (0.531" to 0.551") are within standard through-hole component tolerances and do not restrict substitution in standard applications.

Frequently Asked Questions (FAQ)

Q: Can 337SAK035M be replaced with any of the listed substitute parts?

A: Yes. All listed parts meet the mandatory core electrical parameters (330 µF, 35 V, ±20% tolerance, polar) and mechanical parameters (radial can package, through-hole mounting, 5.00 mm lead spacing, 10.00 mm diameter). Substitution is electrically and mechanically valid. Height variations (0.531" to 0.551") do not restrict substitution in standard applications.

Q: What is the difference between direct equivalents and enhanced alternatives?

A: Direct equivalents (337CKE035M, B41821A7337M000, ECA-1VM331) maintain the same 2000-hour lifetime rating as the primary part. Enhanced alternatives (Rubycon YXJ, ZLH, ZLS series) extend lifetime to 5000-10000 hours @ 105°C, providing improved long-term reliability. Selection depends on application lifetime requirements.

Q: Are there any restrictions on substituting parts with different operating temperature ranges?

A: No. The primary part operates -40°C to 85°C. Substitute parts with extended ranges (-40°C to 105°C or -55°C to 105°C) are fully compatible and represent performance upgrades. Parts with narrower ranges are not listed as substitutes.

Q: How do ripple current ratings affect substitution?

A: Ripple current capacity is a performance characteristic, not a restriction criterion. The primary part supports 460 mA @ 120 Hz. Substitutes with higher ripple current (420-808.5 mA range) indicate improved high-frequency performance and are suitable for applications with elevated ripple environments. Lower ripple current does not restrict substitution for standard applications.

Q: What is the significance of ESR (Equivalent Series Resistance) values?

A: ESR affects capacitor performance in high-frequency applications. The primary part specifies 703 mOhm @ 120 Hz. Substitute parts with lower ESR or impedance values (35-80 mOhms) indicate improved performance in ripple-heavy circuits. ESR differences do not restrict substitution; lower values represent performance enhancements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. No compliance restrictions apply to substitution.

Q: Can height differences affect PCB layout?

A: Height variations range from 0.531" (13.50 mm) to 0.551" (14.00 mm), a difference of 0.020" (0.50 mm). This variation is within standard through-hole component tolerances and does not restrict substitution in typical applications. Verify clearance in space-constrained designs.

Q: Which substitute part offers the best long-term reliability?

A: Rubycon 35ZLH330MEFC10X12.5 provides the highest lifetime rating (10000 hours @ 105°C) and lowest impedance (39 mOhms), making it suitable for demanding applications requiring extended service life and high-frequency ripple performance.

Q: Is there a preferred substitute for general-purpose applications?

A: 337CKE035M (same manufacturer, enhanced thermal performance) or ECA-1VM331 (Panasonic, compact height) are suitable for general-purpose replacement. Both maintain 2000-hour lifetime ratings and are widely available.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message