UPW0J681MPD Equivalent & Substitute Parts

Part Overview

The UPW0J681MPD is a 680 µF, 6.3 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Finding equivalent and substitute parts is necessary for maintenance, repair, and legacy system support where original components may no longer be readily available or where design upgrades are required.

Substiute Parts

UPW0J681MPD

NichiconIn Stock: 5621UPW0J681MPD Datasheet

Current PartRFQ

UPW1A681MPD

NichiconIn Stock: 2223UPW1A681MPD Datasheet

UpgradeRFQ

ELXZ100ELL681MJC5S

Chemi-ConIn Stock: 4947ELXZ100ELL681MJC5S Datasheet

UpgradeRFQ

ELXZ6R3ELL681MH12D

Chemi-ConIn Stock: 736ELXZ6R3ELL681MH12D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UPW0J681MPD is determined by the following critical parameters:

Primary Substitution Criteria:

• Capacitance: 680 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can (exact match required)
• Lead Spacing: 0.197" (5.00mm) (exact match required)
• Size / Dimension: 0.394" Dia (10.00mm) (exact match required)

Secondary Substitution Criteria (allowable variations):

• Voltage - Rated: May be equal to or greater than 6.3 V
• Lifetime @ Temp.: May be equal to or greater than 5000 Hrs @ 105°C
• Height - Seated (Max): May vary within mechanical envelope constraints
• Impedance: May vary within acceptable operating parameters
• Ripple Current: May vary based on voltage rating and thermal characteristics

Substitute parts are grouped into two categories: Upgrade substitutes (higher voltage rating) and Similar substitutes (equivalent voltage rating with different mechanical or thermal characteristics).

Parameter Comparison

Engineering Selection Recommendations

UPW1A681MPD (Nichicon Upgrade Substitute): This part maintains identical mechanical dimensions and lead spacing to the UPW0J681MPD while providing a higher voltage rating of 10 V. Both parts share the same series designation (UPW), impedance (90 mOhms), and thermal lifetime (5000 Hrs @ 105°C). However, this part carries the same Not For New Designs status as the original. Selection is appropriate for direct replacement in existing designs where the higher voltage rating provides additional design margin.

ELXZ100ELL681MJC5S (Chemi-Con Upgrade Substitute): This part provides a 10 V voltage rating with identical capacitance, tolerance, and thermal lifetime. It maintains the same lead spacing (0.197" / 5.00mm) and diameter (0.394" / 10.00mm) as the original, with a slightly increased height (0.551" vs 0.492"). This part carries Active product status and includes AEC-Q200 automotive qualification. Selection is appropriate for applications requiring active product support and automotive-grade reliability.

ELXZ6R3ELL681MH12D (Chemi-Con Similar Substitute): This part matches the original voltage rating (6.3 V) and capacitance (680 µF) but differs in mechanical dimensions: smaller diameter (0.315" / 8.00mm), reduced lead spacing (0.138" / 4.60mm), and higher impedance (120 mOhms vs 90 mOhms). The thermal lifetime is reduced to 3000 Hrs @ 105°C. This part carries Active product status and AEC-Q200 qualification. Selection requires verification of PCB layout compatibility due to different lead spacing and physical dimensions.

Frequently Asked Questions (FAQ)

Q: Can UPW1A681MPD be used as a direct replacement for UPW0J681MPD?

A: Yes. Both parts share identical mechanical dimensions, lead spacing, and thermal characteristics. The UPW1A681MPD provides a higher voltage rating (10 V vs 6.3 V), which is acceptable for direct substitution in circuits designed for 6.3 V operation.

Q: What is the primary difference between the upgrade substitutes and the similar substitute?

A: The upgrade substitutes (UPW1A681MPD and ELXZ100ELL681MJC5S) maintain the original lead spacing of 0.197" (5.00mm) and diameter of 0.394" (10.00mm), allowing direct PCB mounting without layout modification. The similar substitute (ELXZ6R3ELL681MH12D) has different lead spacing (0.138" / 4.60mm) and smaller diameter (0.315" / 8.00mm), requiring PCB layout verification before selection.

Q: Why does ELXZ6R3ELL681MH12D have a reduced thermal lifetime?

A: The ELXZ6R3ELL681MH12D is rated for 3000 Hrs @ 105°C compared to 5000 Hrs for the original part. This reduced lifetime reflects the thermal characteristics of the smaller package size. Applications requiring the full 5000-hour lifetime should select UPW1A681MPD or ELXZ100ELL681MJC5S.

Q: Which substitute part is recommended for new designs?

A: ELXZ100ELL681MJC5S carries Active product status and AEC-Q200 automotive qualification, making it the appropriate choice for new designs requiring long-term manufacturer support and automotive-grade reliability.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed—UPW0J681MPD, UPW1A681MPD, ELXZ100ELL681MJC5S, and ELXZ6R3ELL681MH12D—are ROHS3 compliant.

Q: Can ELXZ6R3ELL681MH12D be used in applications requiring 5000-hour lifetime?

A: No. ELXZ6R3ELL681MH12D is rated for 3000 Hrs @ 105°C. Applications with 5000-hour lifetime requirements must use UPW1A681MPD or ELXZ100ELL681MJC5S.