Equivalent & Substitute Parts for ULD2E8R2MPD

Part Overview

The Nichicon ULD2E8R2MPD is an 8.2 µF, 250 V aluminum electrolytic capacitor in radial through-hole configuration with a 12000-hour lifetime at 105°C. This part is classified as Obsolete, making substitute components necessary for ongoing production and maintenance applications. The ULD series represents a legacy product line, and equivalent alternatives are available across different manufacturers and package types to support continued system deployment.

Key Parameters

Parameter	Value
Capacitance	8.2 µF
Voltage Rating	250 V
Tolerance	±20%
Lifetime @ 105°C	12000 Hrs
Operating Temperature Range	-40°C to 105°C
Mounting Type	Through Hole
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)
Height	0.433" (11.00 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the ULD2E8R2MPD is determined by the following critical parameters: capacitance value (8.2 µF), voltage rating (250 V minimum), tolerance (±20%), operating temperature range (-40°C to 105°C), and mounting configuration (through-hole radial). Parts are grouped into three categories based on compatibility:

Direct Parametric Equivalents maintain identical electrical specifications and physical footprint, enabling direct board-level replacement without design modification.

Voltage-Upgraded Alternatives provide higher voltage ratings (400 V) while maintaining the same capacitance and footprint, suitable for applications where voltage margin improvement is acceptable.

Package-Variant Alternatives offer the same electrical specifications in surface-mount configuration, applicable only when board design supports SMD mounting.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	Case Diameter	Height	Mounting Type	Product Status	RoHS Status
ULD2E8R2MPD	Nichicon	8.2 µF	250 V	±20%	12000 Hrs	0.394" (10.00 mm)	0.433" (11.00 mm)	Through Hole	Obsolete	ROHS3
250LLE8.2MEFC10X9	Rubycon	8.2 µF	250 V	±20%	12000 Hrs	0.394" (10.00 mm)	0.433" (11.00 mm)	Through Hole	Not For New Designs	ROHS3
ULD2G8R2MPD	Nichicon	8.2 µF	400 V	±20%	20000 Hrs	0.394" (10.00 mm)	0.709" (18.00 mm)	Through Hole	Not For New Designs	ROHS3
ULV2E8R2MNL1GS	Nichicon	8.2 µF	250 V	±20%	10000 Hrs	0.315" (8.00 mm)	0.433" (11.00 mm)	Surface Mount	Active	ROHS3

Engineering Selection Recommendations

For Direct Through-Hole Replacement (Identical Footprint): The Rubycon 250LLE8.2MEFC10X9 provides parametric equivalence with matching capacitance, voltage, tolerance, lifetime, and physical dimensions. Both the main part and this substitute are classified as legacy products (Obsolete and Not For New Designs respectively), indicating equivalent end-of-life status. Both maintain ROHS3 compliance.

For Voltage-Margin Applications (Through-Hole): The Nichicon ULD2G8R2MPD offers the same capacitance and tolerance with elevated voltage rating (400 V) and extended lifetime (20000 Hrs at 105°C). Physical footprint differs in height (0.709" vs. 0.433"), requiring PCB layout verification. This part is classified as Not For New Designs.

For Surface-Mount Conversion (Active Product): The Nichicon ULV2E8R2MNL1GS maintains electrical specifications (8.2 µF, 250 V, ±20%) in surface-mount package with Active product status. Case diameter is reduced to 0.315" (8.00 mm), and mounting type changes to SMD with specified land size (0.327" L x 0.327" W). This option applies only when board redesign for SMD assembly is feasible.

Frequently Asked Questions (FAQ)

Q: Can the ULD2E8R2MPD be replaced with the ULD2G8R2MPD? A: Yes, for applications where increased voltage margin is acceptable. The ULD2G8R2MPD maintains identical capacitance and tolerance but operates at 400 V (versus 250 V) with extended lifetime. Physical height increases from 0.433" to 0.709", requiring PCB clearance verification.

Q: Is the Rubycon 250LLE8.2MEFC10X9 a direct substitute? A: Yes. The 250LLE8.2MEFC10X9 matches all critical parameters: 8.2 µF capacitance, 250 V rating, ±20% tolerance, 12000-hour lifetime at 105°C, and identical through-hole radial package dimensions. Direct PCB substitution is possible without design modification.

Q: Can the ULV2E8R2MNL1GS replace the ULD2E8R2MPD on existing boards? A: No. The ULV2E8R2MNL1GS is a surface-mount component with different package type and land pattern. It requires PCB redesign and assembly process change. Use this part only for new designs or board revisions that support SMD mounting.

Q: What is the difference in ripple current handling between these parts? A: The main part (ULD2E8R2MPD) handles 76 mA at 120 Hz and 144.4 mA at 100 kHz. The Rubycon equivalent (250LLE8.2MEFC10X9) handles 76 mA at 120 Hz and 144 mA at 100 kHz, providing equivalent ripple current performance. The ULD2G8R2MPD (400 V variant) handles higher ripple currents: 88 mA at 120 Hz and 167.2 mA at 100 kHz.

Q: Are all substitute parts ROHS3 compliant? A: Yes. The main part and all listed substitutes maintain ROHS3 compliance. The ULD2G8R2MPD carries REACH Affected status, while the main part and Rubycon equivalent are REACH Unaffected.

Q: What is the product status implication for new designs? A: The main part (ULD2E8R2MPD) is Obsolete. For new designs, the ULV2E8R2MNL1GS (Active status) is the recommended Nichicon alternative if SMD mounting is feasible. For through-hole designs, both substitute options carry legacy status (Not For New Designs), indicating limited long-term availability.

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