ELXY250ELL390MEB5D Equivalent & Substitute Parts

Part Overview

The ELXY250ELL390MEB5D is a 39 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Chemi-Con. This component is rated for 2000 hours at 105°C and is designed for automotive applications with AEC-Q200 compliance. The part is currently active in production with 811 pieces in stock.

Substitute parts are necessary when the primary component becomes unavailable, when design requirements shift between automotive and general-purpose applications, or when extended operational lifetime at elevated temperatures is required. The substitute parts listed maintain electrical equivalence while offering alternative manufacturer sources and performance characteristics.

Key Parameters

Parameter	Value	Unit
Capacitance	39	µF
Tolerance	±20%	-
Voltage - Rated	25	V
Operating Temperature Range	-55°C to 105°C	-
Polarization	Polar	-
Mounting Type	Through Hole	-
Package / Case	Radial, Can	-
Lead Spacing	0.079" (2.00 mm)	-
Size / Dimension	0.197" Dia (5.00 mm)	-

Substitute Part Grouping Explanation

Substitution eligibility for the ELXY250ELL390MEB5D is determined by the following mandatory parameters:

Electrical Parameters:

Capacitance: 39 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 25 V (exact match required)
Polarization: Polar (exact match required)

Mechanical Parameters:

Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can (exact match required)
Lead Spacing: 0.079" (2.00 mm) (exact match required)
Size / Dimension: 0.197" Dia (5.00 mm) (exact match required)

Environmental Parameters:

Operating Temperature Range: -55°C to 105°C (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

The substitute parts UPV1E390MFD and UPW1E390MDD meet all mandatory electrical, mechanical, and environmental criteria. Differences in lifetime rating, impedance, ripple current specifications, and application classification do not disqualify these parts from substitution when the core parameters align.

Parameter Comparison

Parameter	ELXY250ELL390MEB5D (Chemi-Con)	UPV1E390MFD (Nichicon)	UPW1E390MDD (Nichicon)
Capacitance	39 µF	39 µF	39 µF
Tolerance	±20%	±20%	±20%
Voltage - Rated	25 V	25 V	25 V
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Polarization	Polar	Polar (inferred)	Polar
Lifetime @ Temp.	2000 Hrs @ 105°C	5000 Hrs @ 105°C	2000 Hrs @ 105°C
Impedance	750 mOhms	1.1 Ohms	600 mOhms
Lead Spacing	0.079" (2.00 mm)	0.079" (2.00 mm)	0.079" (2.00 mm)
Size / Dimension	0.197" Dia (5.00 mm)	0.197" Dia (5.00 mm)	0.197" Dia (5.00 mm)
Height - Seated (Max)	0.512" (13.00 mm)	0.492" (12.50 mm)	0.433" (11.00 mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Obsolete	Obsolete

Engineering Selection Recommendations

ELXY250ELL390MEB5D (Primary Component): This part is the recommended first choice. It is currently active in production with adequate inventory (811 pieces). It carries AEC-Q200 automotive qualification, making it suitable for automotive applications. The 2000-hour lifetime at 105°C meets standard automotive thermal durability requirements.

UPV1E390MFD (Nichicon - Extended Lifetime Alternative): This substitute is electrically and mechanically equivalent. It offers extended operational lifetime of 5000 hours at 105°C, providing superior thermal endurance compared to the primary part. However, this part is obsolete and inventory availability may be limited (3192 pieces currently in stock). The impedance is higher at 1.1 Ohms. This part is classified for general-purpose applications rather than automotive. Selection of this part is appropriate when extended lifetime at elevated temperature is a design requirement and automotive qualification is not mandatory.

UPW1E390MDD (Nichicon - Compact Height Alternative): This substitute is electrically and mechanically equivalent with identical 2000-hour lifetime at 105°C. It features the lowest seated height at 0.433" (11.00 mm) compared to 0.512" for the primary part and 0.492" for UPV1E390MFD. The impedance is lower at 600 mOhms. This part is obsolete and classified for general-purpose applications. Selection of this part is appropriate when space constraints require minimum component height and automotive qualification is not mandatory. Inventory is substantial at 6569 pieces.

Compliance Considerations: All three parts are ROHS3 compliant and REACH unaffected. The primary part carries AEC-Q200 automotive rating; the substitute parts do not. Selection between these parts depends on whether automotive qualification is a design requirement.

Frequently Asked Questions (FAQ)

Q: Can UPV1E390MFD or UPW1E390MDD be used as direct replacements for ELXY250ELL390MEB5D in automotive applications?

A: UPV1E390MFD and UPW1E390MDD are electrically and mechanically equivalent and will function in the same circuit. However, they lack AEC-Q200 automotive qualification. If AEC-Q200 certification is a design requirement or specification mandate, these parts are not qualified substitutes. If automotive qualification is not required, they are functionally equivalent.

Q: What is the impact of different impedance values (750 mOhms vs. 1.1 Ohms vs. 600 mOhms)?

A: Impedance affects ripple current handling and high-frequency performance. The primary part (ELXY250ELL390MEB5D) at 750 mOhms and UPW1E390MDD at 600 mOhms are closer in impedance. UPV1E390MFD at 1.1 Ohms has higher impedance. In applications with significant ripple current or high-frequency switching, impedance differences may affect thermal performance. Verify ripple current specifications against circuit requirements.

Q: Are the height differences between these parts significant for PCB layout?

A: Yes. The primary part is 0.512" (13.00 mm) tall, UPV1E390MFD is 0.492" (12.50 mm), and UPW1E390MDD is 0.433" (11.00 mm). If the PCB layout has height constraints or clearance requirements, UPW1E390MDD offers the most compact profile. Verify that the selected part height does not exceed design clearance limits.

Q: Why are UPV1E390MFD and UPW1E390MDD marked as obsolete?

A: Product status reflects manufacturer production status. Obsolete parts may have limited future availability. Current inventory levels are substantial (3192 and 6569 pieces respectively), but long-term sourcing cannot be guaranteed. For new designs, the active primary part ELXY250ELL390MEB5D is recommended.

Q: Can these parts be used interchangeably on the same PCB without rework?

A: Yes, provided the PCB layout accommodates the height variation. All three parts have identical lead spacing (0.079" / 2.00 mm) and diameter (0.197" / 5.00 mm). The through-hole footprint is compatible. However, verify that the maximum seated height of the selected part does not exceed available clearance above the PCB.

Q: What is the difference between automotive and general-purpose application classifications?

A: The primary part (ELXY250ELL390MEB5D) carries AEC-Q200 automotive qualification, indicating it meets automotive industry reliability and qualification standards. The substitute parts are classified for general-purpose use and do not carry automotive certification. Selection depends on whether the application requires automotive-grade components per design specification or regulatory requirement.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message