MALREKV00FE233N00K Equivalent & Substitute Parts

Part Overview

The MALREKV00FE233N00K is a 33 µF, 250 V aluminum electrolytic capacitor in radial, can package manufactured by Vishay Beyschlag/Draloric/BC Components from the EKV series. This part is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and field replacement applications.

Key Parameters

Parameter	Value
Capacitance	33 µF
Voltage Rating	250 V
Tolerance	±20%
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.492" (12.50 mm)
Height (Seated Max)	0.866" (22.00 mm)
Mounting Type	Through Hole
Operating Temperature	-25°C to 105°C
Lifetime @ 105°C	10000 Hrs
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MALREKV00FE233N00K is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Capacitance: 33 µF (exact match required)
Voltage Rating: 250 V minimum (higher voltage ratings are acceptable upgrades)
Tolerance: ±20% (exact match)
Package: Radial, Can (exact match)
Lead Spacing: 0.197" (5.00 mm) (exact match)
Case Diameter: 0.492" (12.50 mm) (exact match)
Height: 0.866" (22.00 mm) maximum (equal or lower acceptable)
Mounting Type: Through Hole (exact match)
Polarization: Polar (exact match)

Substitute Categories:

Direct Equivalents maintain all electrical and mechanical parameters within the original specification envelope.

Upgrade Substitutes provide enhanced performance characteristics such as extended lifetime at rated temperature, higher voltage ratings, or improved ripple current handling while maintaining mechanical compatibility.

Parametric Equivalents match core electrical specifications and physical dimensions but may originate from different manufacturers with different series designations.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Operating Temp	Height (Max)	Status
MALREKV00FE233N00K	Vishay Beyschlag/Draloric/BC Components	33 µF	250 V	±20%	10000 Hrs	-25°C ~ 105°C	0.866" (22.00 mm)	Obsolete
UCS2E330MHD	Nichicon	33 µF	250 V	±20%	10000 Hrs	-40°C ~ 105°C	0.846" (21.50 mm)	Active
250BXC33MEFC12.5X20	Rubycon	33 µF	250 V	±20%	12000 Hrs	-25°C ~ 105°C	0.866" (22.00 mm)	Active
EKXJ351ELL330MK20S	Chemi-Con	33 µF	350 V	±20%	10000 Hrs	-40°C ~ 105°C	0.846" (21.50 mm)	Active
UCY2E330MHD3	Nichicon	33 µF	250 V	±20%	12000 Hrs	-40°C ~ 105°C	0.846" (21.50 mm)	Active
UCY2V330MHD	Nichicon	33 µF	350 V	±20%	12000 Hrs	-40°C ~ 105°C	0.846" (21.50 mm)	Active
EEU-EE2E330	Panasonic Electronic Components	33 µF	250 V	±20%	10000 Hrs	-25°C ~ 105°C	0.866" (22.00 mm)	Active

Engineering Selection Recommendations

For Direct Replacement (Mechanical and Electrical Compatibility):

UCS2E330MHD (Nichicon) and EEU-EE2E330 (Panasonic Electronic Components) are direct functional equivalents. Both maintain 33 µF capacitance, 250 V voltage rating, and ±20% tolerance. UCS2E330MHD offers extended operating temperature range (-40°C to 105°C) compared to the original specification. EEU-EE2E330 matches the original height specification of 0.866" (22.00 mm). Both parts are ROHS3 compliant and active in production.

For Enhanced Performance (Upgrade Substitutes):

250BXC33MEFC12.5X20 (Rubycon) provides extended lifetime of 12000 Hrs at 105°C versus the original 10000 Hrs, while maintaining identical voltage and capacitance ratings. Physical dimensions remain compatible with the original specification.

UCY2E330MHD3 (Nichicon) offers 12000 Hrs lifetime at 105°C with extended operating temperature range (-40°C to 105°C). Height is reduced to 0.846" (21.50 mm), which is compatible with the original 0.866" (22.00 mm) specification.

For Higher Voltage Applications (Voltage Upgrade):

EKXJ351ELL330MK20S (Chemi-Con) and UCY2V330MHD (Nichicon) both provide 350 V rating, suitable for applications requiring higher voltage margin. Both maintain 33 µF capacitance and ±20% tolerance. EKXJ351ELL330MK20S carries AEC-Q200 automotive qualification. UCY2V330MHD provides 12000 Hrs lifetime at 105°C.

All substitute parts are ROHS3 compliant and suitable for direct PCB mounting in through-hole applications with 0.197" (5.00 mm) lead spacing and 0.492" (12.50 mm) case diameter.

Frequently Asked Questions (FAQ)

Q: Can I use a 350 V rated capacitor in place of a 250 V rated capacitor?

A: Yes. A higher voltage rating provides additional safety margin and is electrically compatible. The EKXJ351ELL330MK20S and UCY2V330MHD both operate at 350 V and are mechanically compatible with the original 250 V design.

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

A: Direct equivalents (UCS2E330MHD, EEU-EE2E330) match all original electrical and mechanical specifications. Upgrade substitutes (250BXC33MEFC12.5X20, UCY2E330MHD3, UCY2V330MHD) provide enhanced performance such as extended lifetime or higher voltage ratings while maintaining mechanical compatibility.

Q: Are all substitute parts physically compatible with the original PCB layout?

A: All listed substitutes maintain the same lead spacing (0.197" / 5.00 mm) and case diameter (0.492" / 12.50 mm). Height differences are minimal: substitute parts measure 0.846" (21.50 mm) versus the original 0.866" (22.00 mm), which is acceptable for through-hole mounting. EEU-EE2E330 matches the original height exactly.

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

A: 250BXC33MEFC12.5X20 and UCY2E330MHD3 both provide 12000 Hrs lifetime at 105°C, compared to 10000 Hrs for the original part. UCY2V330MHD also offers 12000 Hrs lifetime with the added benefit of 350 V rating.

Q: What is the significance of the operating temperature range difference?

A: The original part operates from -25°C to 105°C. Several substitutes extend the lower temperature limit to -40°C (UCS2E330MHD, EKXJ351ELL330MK20S, UCY2E330MHD3, UCY2V330MHD), providing broader environmental compatibility without affecting performance in the original temperature envelope.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and suitable for applications requiring RoHS compliance.

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