SMG35VB33RM5X11LL Equivalent & Substitute Parts

Part Overview

The SMG35VB33RM5X11LL is a 33 µF, 35 V aluminum electrolytic capacitor manufactured by Chemi-Con in the SMG series. This radial, through-hole component is rated for 2000 hours at 85°C and is designed for general-purpose applications. The part is currently obsolete, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility with the original specification.

Key Parameters

Parameter	Value
Capacitance	33 µF
Voltage Rating	35 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.079" (2.00 mm)
Case Diameter	0.197" (5.00 mm)
Height - Seated (Max)	0.433" (11.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
Polarization	Polar

Substitute Part Grouping Explanation

Substitution of the SMG35VB33RM5X11LL is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Capacitance: 33 µF
Voltage Rating: 35 V
Tolerance: ±20%
Lead Spacing: 0.079" (2.00 mm)
Case Diameter: 0.197" (5.00 mm)
Mounting Type: Through Hole
Package Type: Radial, Can
Polarization: Polar

Compatible Variation Parameters:

Operating Temperature Range: May extend beyond -40°C ~ 85°C
Lifetime @ Temperature: May exceed 2000 Hrs @ 85°C
Height - Seated (Max): Acceptable up to 0.492" (12.50 mm) for through-hole mounting compatibility
Ripple Current: Variations acceptable provided electrical performance meets application requirements

Substitute parts are grouped into three categories: direct equivalents (matching all critical parameters), similar alternatives (same electrical ratings with minor dimensional variations), and upgrades (higher voltage or extended temperature ratings).

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp	Height (Max)	Status	RoHS
SMG35VB33RM5X11LL	Chemi-Con	SMG	33 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.433" (11.00 mm)	Obsolete	Non-compliant
EKZE350ELL330ME11D	Chemi-Con	KZE	33 µF	35 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.492" (12.50 mm)	Active	ROHS3 Compliant
ESMG350ELL330ME11D	Chemi-Con	SMG	33 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.492" (12.50 mm)	Active	ROHS3 Compliant
336SAK035M	Cornell Dubilier / Illinois Capacitor	SAK	33 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.413" (10.50 mm)	Active	ROHS3 Compliant
EEU-EB1V330S	Panasonic Electronic Components	EB-A	33 µF	35 V	±20%	5000 Hrs @ 105°C	-40°C ~ 105°C	0.472" (12.00 mm)	Active	ROHS3 Compliant
UFW1V330MDD	Nichicon	UFW	33 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.492" (12.50 mm)	Obsolete	ROHS3 Compliant
UHE1V330MDD	Nichicon	UHE	33 µF	35 V	±20%	5000 Hrs @ 105°C	-40°C ~ 105°C	0.433" (11.00 mm)	Obsolete	ROHS3 Compliant
UPW1V330MDD	Nichicon	UPW	33 µF	35 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.433" (11.00 mm)	Obsolete	ROHS3 Compliant
UFW1H330MDD	Nichicon	UFW	33 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.492" (12.50 mm)	Obsolete	ROHS3 Compliant
UKW1H330MDD	Nichicon	UKW	33 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.433" (11.00 mm)	Obsolete	ROHS3 Compliant
UKW1V330MDD	Nichicon	UKW	33 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.433" (11.00 mm)	Obsolete	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalents (Preferred for Direct Replacement):

ESMG350ELL330ME11D (Chemi-Con, SMG series) is the primary direct equivalent. It maintains identical electrical specifications (33 µF, 35 V, ±20%, 2000 Hrs @ 85°C, -40°C ~ 85°C) and is currently in active production status with ROHS3 compliance. The height increase from 0.433" to 0.492" is within acceptable through-hole mounting tolerances. This part is recommended for applications requiring direct form-factor compatibility with minimal design modification.

UKW1V330MDD (Nichicon, UKW series) provides electrical equivalence with identical ratings and operating temperature range. Height matches the original specification at 0.433". However, this part is obsolete; selection should be limited to applications where existing inventory is available.

Enhanced Performance Alternatives (Extended Lifetime or Temperature):

EKZE350ELL330ME11D (Chemi-Con, KZE series) offers extended lifetime (2000 Hrs @ 105°C versus 2000 Hrs @ 85°C) and expanded operating temperature range (-40°C ~ 105°C). This part is active and ROHS3 compliant, suitable for applications requiring improved thermal performance. Height is 0.492", within acceptable through-hole mounting limits.

EEU-EB1V330S (Panasonic, EB-A series) provides the highest lifetime rating (5000 Hrs @ 105°C) with extended operating temperature range (-40°C ~ 105°C). This part is active and ROHS3 compliant, appropriate for long-life applications. Height is 0.472", compatible with through-hole mounting.

UHE1V330MDD (Nichicon, UHE series) delivers 5000 Hrs @ 105°C lifetime with extended temperature range (-40°C ~ 105°C). Height matches the original at 0.433". This part is obsolete; use only if existing inventory is available.

Voltage Upgrade Options:

UFW1H330MDD and UKW1H330MDD (both Nichicon) provide 50 V rating with 33 µF capacitance. These parts are suitable for applications requiring higher voltage margin. Both are obsolete; selection depends on inventory availability.

Compliance Considerations:

The original SMG35VB33RM5X11LL is RoHS non-compliant. All recommended substitutes are ROHS3 compliant, meeting current regulatory requirements. Active production parts (EKZE350ELL330ME11D, ESMG350ELL330ME11D, EEU-EB1V330S, 336SAK035M) are preferred for new designs and long-term availability.

Frequently Asked Questions (FAQ)

Q: Can ESMG350ELL330ME11D replace SMG35VB33RM5X11LL directly?

A: Yes. ESMG350ELL330ME11D is a direct electrical equivalent with identical capacitance (33 µF), voltage (35 V), tolerance (±20%), and operating temperature range (-40°C ~ 85°C). The height increases from 0.433" to 0.492", which is acceptable for through-hole mounting applications. This part is currently active and ROHS3 compliant.

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

A: Direct equivalents maintain all original electrical and thermal specifications. Enhanced alternatives extend lifetime or operating temperature range. For example, EKZE350ELL330ME11D extends lifetime from 2000 Hrs @ 85°C to 2000 Hrs @ 105°C and expands the operating temperature range to -40°C ~ 105°C. Selection depends on application requirements.

Q: Are there any height restrictions for through-hole mounting?

A: The original part height is 0.433" (11.00 mm). Substitute parts with heights up to 0.492" (12.50 mm) are compatible with standard through-hole PCB layouts. The Cornell Dubilier 336SAK035M has a height of 0.413" (10.50 mm), which is also acceptable. Verify PCB clearance for your specific application.

Q: Why are some substitute parts listed as obsolete?

A: Obsolete parts are no longer in active production. They are included in this reference because existing inventory may be available from distributors. For new designs and long-term supply assurance, select from active production parts: EKZE350ELL330ME11D, ESMG350ELL330ME11D, EEU-EB1V330S, or 336SAK035M.

Q: What does ROHS3 compliance mean?

A: ROHS3 compliance indicates the part meets the Restriction of Hazardous Substances Directive, restricting the use of specific hazardous materials. The original SMG35VB33RM5X11LL is RoHS non-compliant. All recommended substitutes are ROHS3 compliant, meeting current regulatory and procurement standards.

Q: Can I use a 50 V rated capacitor in place of a 35 V rated capacitor?

A: Yes. A higher voltage rating provides additional safety margin and is electrically compatible. UFW1H330MDD and UKW1H330MDD both provide 50 V rating with 33 µF capacitance. However, these parts are obsolete. For active alternatives with higher voltage, consult additional product lines.

Q: What is the significance of ripple current specifications?

A: Ripple current indicates the AC current the capacitor can handle at specified frequencies. The original part specifies 108 mA @ 120 Hz and 194.4 mA @ 100 kHz. Substitute parts have varying ripple current ratings. Verify that the selected substitute meets or exceeds the ripple current requirements of your application.

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

A: EEU-EB1V330S (Panasonic) offers the highest lifetime rating at 5000 Hrs @ 105°C with extended operating temperature range (-40°C ~ 105°C). This part is currently active and ROHS3 compliant, making it suitable for applications requiring maximum reliability and long service life.

Q: Are lead spacing and case diameter identical across all substitutes?

A: Yes. All substitute parts maintain the same lead spacing (0.079" / 2.00 mm) and case diameter (0.197" / 5.00 mm) as the original SMG35VB33RM5X11LL. These parameters ensure PCB footprint compatibility across all listed alternatives.

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