UAS2D820MHD Equivalent & Substitute Parts

Part Overview

The UAS2D820MHD is a 82 µF, 200 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is designed for general purpose applications. The part is currently active in production with 733 units in stock. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and performance upgrades when the primary part becomes unavailable or when enhanced specifications are required for specific applications.

Substiute Parts

UAS2D820MHD

NichiconIn Stock: 772UAS2D820MHD Datasheet

Current PartRFQ

EKXJ251ELL820MK25S

Chemi-ConIn Stock: 1722EKXJ251ELL820MK25S Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UAS2D820MHD are qualified based on the following criteria:

Electrical Compatibility:

• Identical capacitance value: 82 µF
• Equal or higher voltage rating (200 V minimum)
• Matching tolerance specification: ±20%
• Compatible operating temperature range: -40°C ~ 105°C

Mechanical Compatibility:

• Identical lead spacing: 0.197" (5.00 mm)
• Identical diameter: 0.492" (12.50 mm)
• Height variation within acceptable PCB assembly limits
• Through-hole radial, can package configuration

Functional Compatibility:

• Polar electrolytic capacitor type
• RoHS3 compliance maintained
• REACH unaffected status maintained

The EKXJ251ELL820MK25S qualifies as a substitute part by meeting all electrical and mechanical compatibility requirements while offering enhanced performance characteristics in lifetime rating and ripple current capacity.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (UAS2D820MHD): Select the UAS2D820MHD when the design specification explicitly requires a 200 V rated capacitor with standard 2000-hour lifetime at 105°C. This part maintains active production status and is suitable for general purpose applications with standard reliability requirements.

Substitute Part Selection (EKXJ251ELL820MK25S): The EKXJ251ELL820MK25S is suitable as a substitute when:

• Higher voltage margin is acceptable (250 V vs. 200 V rating)
• Extended component lifetime is beneficial (12000 Hrs vs. 2000 Hrs @ 105°C)
• Increased ripple current capacity is required
• AEC-Q200 automotive qualification is applicable to the end application
• PCB space permits the 0.02" (0.50 mm) height reduction

Both parts maintain RoHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across applications.

Frequently Asked Questions (FAQ)

Q: Can the EKXJ251ELL820MK25S directly replace the UAS2D820MHD on existing PCBs?

A: Yes. Both parts share identical lead spacing (0.197" / 5.00 mm), diameter (0.492" / 12.50 mm), and through-hole radial can package configuration. The substitute part is 0.02" (0.50 mm) shorter, which does not affect PCB assembly compatibility.

Q: What is the primary difference between these two parts?

A: The substitute part offers a higher voltage rating (250 V vs. 200 V), significantly extended lifetime (12000 Hrs vs. 2000 Hrs @ 105°C), and greater ripple current capacity. Capacitance, tolerance, and operating temperature range remain identical.

Q: Are there any compliance or certification differences?

A: The substitute part carries AEC-Q200 automotive qualification, while the main part is specified for general purpose applications. Both maintain RoHS3 compliance and REACH unaffected status.

Q: Does the higher voltage rating of the substitute affect circuit performance?

A: No. A higher voltage rating does not degrade performance in circuits designed for 200 V operation. The capacitor will operate safely within the 200 V design specification with additional voltage margin.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. For standard general purpose applications with 2000-hour lifetime acceptance, either part is suitable. For applications requiring extended reliability, automotive qualification, or higher ripple current handling, the EKXJ251ELL820MK25S is the appropriate choice.

Q: Are the electrical characteristics (capacitance, tolerance, temperature range) identical?

A: Yes. Both parts are specified at 82 µF ±20% with identical -40°C ~ 105°C operating temperature range, ensuring functional equivalence in circuit operation.