SH332M6R3ST Equivalent & Substitute Parts Reference

Part Overview

The SH332M6R3ST is a 3300 µF, 6.3 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, indicating it is no longer in active production. The SH series represents a legacy product line with a rated lifetime of 2000 hours at 105°C and an equivalent series resistance (ESR) of 120 mOhm at 120 Hz.

Due to its obsolete status, sourcing original SH332M6R3ST units presents supply chain challenges. Equivalent and substitute parts from active manufacturers provide viable alternatives that maintain the same electrical specifications—3300 µF capacitance, ±20% tolerance, and 6.3 V rated voltage—while offering improved availability and, in many cases, enhanced performance characteristics such as extended lifetime ratings and lower impedance values.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	3300	µF	Critical—must match exactly
Voltage - Rated	6.3	V	Critical—must match exactly
Tolerance	±20%	%	Critical—must match exactly
Polarization	Polar	—	Critical—must match exactly
Mounting Type	Through Hole	—	Critical—must match exactly
Package / Case	Radial, Can	—	Critical—must match exactly
Lead Spacing	0.197" (5.00mm)	in (mm)	Critical—must match for PCB compatibility
Operating Temperature	-40°C ~ 105°C	°C	Important—substitute must cover or exceed this range
ESR @ 120 Hz	120	mOhm	Performance indicator—lower values indicate improved performance
Lifetime @ 105°C	2000	Hrs	Performance indicator—higher values indicate improved reliability
RoHS Status	ROHS3 Compliant	—	Regulatory—all substitutes must maintain compliance

Substitute Part Grouping Explanation

Substitution eligibility for the SH332M6R3ST is determined by strict adherence to the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 3300 µF (exact match required)
Voltage Rating: 6.3 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.197" (5.00mm) (exact match required for PCB fit)

Performance Parameters (Substitutes may equal or exceed):

Operating Temperature Range: Substitute must support -40°C to 105°C minimum
Lifetime @ 105°C: Substitute may exceed 2000 hours
ESR: Substitute may be lower than 120 mOhm
Ripple Current Ratings: Substitute may equal or exceed specified values

Regulatory Compliance:

RoHS3 Compliance: All substitutes must maintain ROHS3 Compliant status

All substitute parts listed below satisfy these mandatory criteria. Variations in physical dimensions (diameter and height) within the radial can package format are acceptable provided lead spacing remains 0.197" (5.00mm) and the component fits within the PCB footprint design envelope.

Parameter Comparison

Parameter	SH332M6R3ST (Main)	EKZE6R3ELL332MK20S	UHE0J332MHD	EEU-FC0J332	UPW0J332MHD	ECA-0JHG332
Manufacturer	Cornell Dubilier Electronics	Chemi-Con	Nichicon	Panasonic Electronic Components	Nichicon	Panasonic Electronic Components
Capacitance	3300 µF	3300 µF	3300 µF	3300 µF	3300 µF	3300 µF
Voltage - Rated	6.3 V	6.3 V	6.3 V	6.3 V	6.3 V	6.3 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Polarization	Polar	Polar	Polar	Polar	Polar	Polar
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Lead Spacing	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lifetime @ 105°C	2000 Hrs	5000 Hrs	8000 Hrs	5000 Hrs	7000 Hrs	2000 Hrs
ESR @ 120 Hz	120 mOhm	—	—	—	—	—
Impedance	—	21 mOhms	35 mOhms	38 mOhms	38 mOhms	—
Ripple Current @ 120 Hz	1.1 A	1.77 A	1.52 A	1.407 A	1.407 A	840 mA
Ripple Current @ High Frequency	1.32 A @ 10 kHz	2.36 A @ 100 kHz	1.9 A @ 100 kHz	1.655 A @ 100 kHz	1.655 A @ 10 kHz	966 mA @ 100 kHz
Size / Dimension (Diameter)	0.512" (13.00mm)	0.492" (12.50mm)	0.492" (12.50mm)	0.492" (12.50mm)	0.492" (12.50mm)	0.394" (10.00mm)
Height - Seated (Max)	0.787" (20.00mm)	0.846" (21.50mm)	0.787" (20.00mm)	0.787" (20.00mm)	0.787" (20.00mm)	0.866" (22.00mm)
Product Status	Obsolete	Active	Not For New Designs	Active	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: EKZE6R3ELL332MK20S (Chemi-Con KZE Series)

The EKZE6R3ELL332MK20S is the preferred direct substitute for the obsolete SH332M6R3ST. This part maintains all mandatory electrical and mechanical specifications while offering significant performance improvements: 5000-hour lifetime at 105°C (2.5× the original), reduced impedance of 21 mOhms, and enhanced ripple current handling (1.77 A @ 120 Hz). The component is in active production status, ensuring reliable long-term supply chain availability. Physical dimensions are compatible with standard PCB footprints designed for 5.00mm lead spacing.

Secondary Recommendation: EEU-FC0J332 (Panasonic FC Series)

The EEU-FC0J332 serves as an upgrade substitute with extended operating temperature range (-55°C to 105°C) and AEC-Q200 automotive qualification. This part is actively produced and maintains ROHS3 compliance. The 5000-hour lifetime at 105°C and 38 mOhms impedance provide reliable performance for general-purpose and automotive applications. This option is suitable when enhanced temperature performance or automotive-grade certification is required.

Tertiary Recommendation: UHE0J332MHD (Nichicon UHE Series)

The UHE0J332MHD offers the highest lifetime rating at 8000 hours at 105°C, providing extended reliability for long-life applications. However, this part carries a "Not For New Designs" status, indicating it is in mature production phase. This option is appropriate for legacy system maintenance or replacement scenarios where extended operational life is prioritized and supply availability is confirmed.

Alternative for Space-Constrained Applications: ECA-0JHG332 (Panasonic NHG-A Series)

The ECA-0JHG332 features a smaller diameter (0.394" / 10.00mm) compared to the main part (0.512" / 13.00mm), making it suitable for applications with restricted radial space. This part is actively produced and maintains ROHS3 compliance. The 2000-hour lifetime at 105°C matches the original specification. Note that reduced ripple current ratings (840 mA @ 120 Hz) may limit suitability for high-ripple applications.

Selection Criteria Summary:

For new designs with standard space availability: Select EKZE6R3ELL332MK20S
For automotive or extended temperature applications: Select EEU-FC0J332
For maximum lifetime requirement: Select UHE0J332MHD (confirm supply availability)
For space-constrained PCBs: Select ECA-0JHG332 (verify ripple current compatibility)

All recommended substitutes maintain the mandatory electrical specifications (3300 µF, 6.3 V, ±20%, polar, through-hole, radial can, 5.00mm lead spacing) and ROHS3 compliance required for direct substitution.

Frequently Asked Questions (FAQ)

Q1: Can I use any of these substitute parts as a direct replacement for the SH332M6R3ST without PCB modification?

A: Yes, all listed substitute parts maintain the critical specifications: 3300 µF capacitance, 6.3 V voltage rating, ±20% tolerance, polar configuration, through-hole mounting, radial can package, and 0.197" (5.00mm) lead spacing. Physical dimensions vary slightly (diameter and height), but these variations are within acceptable tolerances for standard PCB footprints designed for radial aluminum electrolytic capacitors. Verify that your PCB layout accommodates the maximum height of the selected substitute (ranging from 0.787" to 0.866").

Q2: Why do some substitute parts have different physical dimensions despite identical electrical specifications?

A: Aluminum electrolytic capacitor design allows manufacturers to achieve the same electrical performance (capacitance, voltage, tolerance) using different internal construction geometries. Variations in can diameter and height result from different winding configurations, electrolyte formulations, and manufacturing processes. All substitutes listed maintain the critical 5.00mm lead spacing, ensuring PCB compatibility. Diameter and height differences are acceptable provided the component fits within the available PCB space envelope.

Q3: What does "Not For New Designs" status mean, and should I avoid these parts?

A: "Not For New Designs" indicates that the manufacturer is not actively promoting the part for new product development, though production continues for existing applications and replacements. These parts (UHE0J332MHD and UPW0J332MHD) remain fully functional and compliant. Use them for legacy system maintenance, field replacements, or when specific performance characteristics (such as the 8000-hour lifetime of UHE0J332MHD) justify the selection. For new product designs, prioritize parts with "Active" status (EKZE6R3ELL332MK20S, EEU-FC0J332, ECA-0JHG332).

Q4: How do I determine which substitute is best for my application?

A: Selection depends on three factors: (1) Product Status: Choose "Active" parts for new designs. (2) Operating Environment: If operating temperature exceeds -40°C to 105°C, select EEU-FC0J332 or UPW0J332MHD (both rated -55°C to 105°C). (3) Performance Requirements: If ripple current handling is critical, EKZE6R3ELL332MK20S offers the highest ripple current ratings (1.77 A @ 120 Hz, 2.36 A @ 100 kHz). If lifetime is critical, UHE0J332MHD provides 8000 hours at 105°C. If space is constrained, ECA-0JHG332 offers a smaller diameter.

Q5: Are all substitute parts RoHS3 compliant like the original SH332M6R3ST?

A: Yes. All substitute parts listed in this reference maintain ROHS3 Compliant status, ensuring regulatory compliance for applications requiring RoHS certification. This compliance is maintained across all manufacturers (Chemi-Con, Nichicon, Panasonic).

Q6: What is the significance of impedance values listed for substitute parts?

A: Impedance (measured in mOhms) indicates the part's resistance to alternating current at specific frequencies. Lower impedance values indicate better high-frequency performance and reduced voltage ripple. The original SH332M6R3ST specifies 120 mOhm ESR at 120 Hz. Substitute parts show impedance values ranging from 21 mOhms (EKZE6R3ELL332MK20S) to 38 mOhms (EEU-FC0J332, UPW0J332MHD), all representing improvements over the original. Lower impedance is beneficial for applications sensitive to voltage ripple or operating at high frequencies.

Q7: What does "Lifetime @ 105°C" mean, and why does it vary among substitutes?

A: Lifetime at 105°C represents the expected operational duration before the capacitor's capacitance degrades to 80% of its rated value under continuous operation at maximum rated temperature. The original SH332M6R3ST specifies 2000 hours. Substitute parts offer extended lifetimes: EKZE6R3ELL332MK20S (5000 hours), UHE0J332MHD (8000 hours), EEU-FC0J332 (5000 hours), UPW0J332MHD (7000 hours), and ECA-0JHG332 (2000 hours). Extended lifetime indicates improved reliability and longer service intervals. For applications operating continuously at elevated temperatures, select parts with higher lifetime ratings.

Q8: Can I use ECA-0JHG332 in place of the other substitutes due to its smaller size?

A: ECA-0JHG332 is suitable only if your PCB has space constraints and ripple current requirements are low. This part has a smaller diameter (0.394" vs. 0.512" for the original) but lower ripple current ratings (840 mA @ 120 Hz compared to 1.1 A for the original). If your circuit requires ripple current handling above 840 mA at 120 Hz, this part is not appropriate. Verify ripple current specifications for your application before selecting this option.

Q9: What is the difference between "Direct," "Upgrade," and "Similar" substitute classifications?

A: These classifications reflect the substitution relationship: Direct Substitutes (EKZE6R3ELL332MK20S, UHE0J332MHD) maintain all critical specifications with minimal variation. Upgrade Substitutes (EEU-FC0J332, UPW0J332MHD) offer enhanced performance characteristics such as extended temperature range or improved lifetime while maintaining core electrical specifications. Similar Substitutes (ECA-0JHG332) meet all mandatory electrical specifications but may have different physical dimensions or performance characteristics. All classifications are suitable for replacement; selection depends on application requirements.

Q10: How should I verify compatibility before ordering a substitute part?

A: Perform these verification steps: (1) Confirm capacitance (3300 µF), voltage (6.3 V), tolerance (±20%), and lead spacing (5.00mm) match your requirement. (2) Verify the PCB footprint accommodates the substitute's maximum height and diameter. (3) Check ripple current requirements against the substitute's ratings. (4) Confirm operating temperature range covers your application environment. (5) Verify RoHS compliance status if required. (6) Confirm product availability and lead time with your supplier. All substitutes listed in this reference satisfy steps 1, 4, and 5; steps 2, 3, and 6 require application-specific verification.

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