UVK1E331MPD1TD Equivalent & Substitute Parts

Part Overview

The UVK1E331MPD1TD is a 330 µF, 25 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 2000 hours at 85°C and is classified as Not For New Designs. Due to this product status, equivalent and substitute parts with improved specifications or active production status are necessary for new circuit designs and long-term supply chain reliability.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	25 V
Tolerance	±20%
Package Type	Radial, Can
Mounting Type	Through Hole
Polarization	Polar
Operating Temperature Range	-40°C ~ 85°C
Lifetime Rating	2000 Hrs @ 85°C
Lead Spacing	0.138" (4.60mm)
Size / Dimension	0.315" Dia (8.00mm)
Height - Seated (Max)	0.512" (13.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UVK1E331MPD1TD is determined by the following criteria:

Core Electrical Parameters (Non-Negotiable):

Capacitance: 330 µF
Voltage Rating: 25 V
Tolerance: ±20%
Polarization: Polar

Mechanical Parameters (Must Match or Exceed):

Package Type: Radial, Can
Mounting Type: Through Hole
Lead Spacing: 0.138" (4.60mm) or compatible
Size / Dimension: 0.315" Dia (8.00mm)
Height - Seated (Max): 0.512" (13.00mm) or less

Performance Parameters (May Vary):

Operating Temperature Range: -40°C ~ 85°C or wider
Lifetime Rating: 2000 Hrs @ 85°C or higher
Ripple Current: May vary by manufacturer

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant

Parts are grouped into three categories: Upgrade (improved specifications), Direct (equivalent specifications), and Parametric Equivalent (compatible with minor variations).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp.	Operating Temp.	Lead Spacing	Height (Max)	Product Status	RoHS
UVK1E331MPD1TD	Nichicon	330 µF	25 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.138" (4.60mm)	0.512" (13.00mm)	Not For New Designs	ROHS3
UKA1E331MPD1TD	Nichicon	330 µF	25 V	±20%	2000 Hrs @ 105°C	-55°C ~ 105°C	0.138" (4.60mm)	0.512" (13.00mm)	Not For New Designs	ROHS3
UPA1E331MPD1TD	Nichicon	330 µF	25 V	±20%	3000 Hrs @ 105°C	-55°C ~ 105°C	0.138" (4.60mm)	0.512" (13.00mm)	Active	ROHS3
ECA-1EM331BJ	Panasonic Electronic Components	330 µF	25 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.138" (4.60mm)	0.492" (12.50mm)	Active	ROHS3
25PK330MEFCTA8X11.5	Rubycon	330 µF	25 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00mm)	0.512" (13.00mm)	Active	ROHS3
25YXG330MEFCT78X11.5	Rubycon	330 µF	25 V	±20%	4000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (4.60mm)	0.512" (13.00mm)	Not For New Designs	ROHS3
860020474013	Würth Elektronik	330 µF	25 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (4.60mm)	0.512" (13.00mm)	Active	ROHS3
EKZH250ETD331MHB5D	Chemi-Con	330 µF	25 V	±20%	6000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (4.60mm)	0.512" (13.00mm)	Active	ROHS3
EKZM250ETD331MHB5D	Chemi-Con	330 µF	25 V	±20%	8000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (4.60mm)	0.512" (13.00mm)	Active	ROHS3
25PK330MEFCT78X11.5	Rubycon	330 µF	25 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.138" (4.60mm)	0.512" (13.00mm)	Active	ROHS3
860010474012	Würth Elektronik	330 µF	25 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.138" (4.60mm)	0.512" (13.00mm)	Active	ROHS3

Engineering Selection Recommendations

For Active Production Designs: UPA1E331MPD1TD (Nichicon) is the primary recommendation. This part maintains identical electrical and mechanical specifications to the UVK1E331MPD1TD while offering Active product status, extended lifetime (3000 Hrs @ 105°C), and wider operating temperature range (-55°C ~ 105°C).

For Direct Equivalence with Active Status: ECA-1EM331BJ (Panasonic Electronic Components) provides direct electrical equivalence with Active product status. Height is 0.492" (12.50mm), which is within the maximum seated height specification. This part is suitable for designs with identical thermal and performance requirements to the original.

For Extended Lifetime Applications: EKZM250ETD331MHB5D (Chemi-Con) offers the highest lifetime rating at 8000 Hrs @ 105°C with Active product status. This part is suitable for applications requiring extended operational life and higher temperature stability.

EKZH250ETD331MHB5D (Chemi-Con) provides 6000 Hrs @ 105°C with Active status as an intermediate option.

For Lead Spacing Compatibility: 25PK330MEFCTA8X11.5 (Rubycon) has a lead spacing of 0.197" (5.00mm), which differs from the original 0.138" (4.60mm). This part is suitable only if PCB layout accommodates the wider spacing.

For Parametric Equivalence: 25PK330MEFCT78X11.5 (Rubycon) and 860010474012 (Würth Elektronik) provide parametric equivalence with Active product status and identical mechanical dimensions. These parts are suitable for direct substitution in existing designs.

860020474013 (Würth Elektronik) offers improved temperature performance (2000 Hrs @ 105°C) while maintaining identical mechanical compatibility.

All substitute parts maintain ROHS3 compliance and are electrically and mechanically compatible within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can UPA1E331MPD1TD replace UVK1E331MPD1TD directly? A: Yes. UPA1E331MPD1TD is a direct electrical and mechanical replacement with improved specifications. It maintains 330 µF capacitance, 25 V voltage rating, ±20% tolerance, and identical lead spacing (0.138" / 4.60mm) and height (0.512" / 13.00mm). The primary advantage is Active product status and extended lifetime (3000 Hrs @ 105°C vs. 2000 Hrs @ 85°C).

Q: What is the difference between Upgrade, Direct, and Parametric Equivalent categories? A: Upgrade parts offer improved specifications (higher lifetime, wider temperature range, or better performance metrics) while maintaining core electrical parameters. Direct parts provide equivalent specifications with potentially different product status or manufacturer. Parametric Equivalent parts meet all core electrical and mechanical requirements with minor variations in secondary parameters.

Q: Does lead spacing affect substitution? A: Yes. Lead spacing determines PCB hole placement. The original part uses 0.138" (4.60mm) spacing. 25PK330MEFCTA8X11.5 uses 0.197" (5.00mm) spacing and requires PCB layout verification before substitution. All other substitute parts use 0.138" (4.60mm) spacing and are directly compatible.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original UVK1E331MPD1TD specification.

Q: Which substitute offers the longest operational life? A: EKZM250ETD331MHB5D (Chemi-Con) provides the highest lifetime rating at 8000 Hrs @ 105°C with Active product status.

Q: Can I use a substitute with a different operating temperature range? A: Yes, provided the substitute's operating temperature range encompasses your application requirements. For example, UPA1E331MPD1TD (-55°C ~ 105°C) is suitable for applications requiring the original's -40°C ~ 85°C range and beyond.

Q: What is the height difference between ECA-1EM331BJ and the original part? A: ECA-1EM331BJ has a maximum seated height of 0.492" (12.50mm) compared to the original's 0.512" (13.00mm). This 0.020" (0.50mm) difference is within typical PCB clearance tolerances and does not affect substitution compatibility.

Q: Are there inventory considerations for substitution? A: Yes. Inventory levels vary by part number. UPA1E331MPD1TD has 5936 pcs in stock, EKZM250ETD331MHB5D has 926 pcs, and 860010474012 has 3545 pcs. Verify availability for your production volume requirements.

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