Equivalent & Substitute Parts for UHD1V331MPD1TD

Part Overview

The Nichicon UHD1V331MPD1TD is a 330 µF, 35 V aluminum electrolytic capacitor in radial configuration with a rated lifetime of 4000 hours at 105°C. This component is classified as Not For New Designs, indicating it has been superseded in Nichicon's product portfolio. Finding equivalent or substitute parts is necessary for ongoing maintenance, repair, and legacy system support where original stock is unavailable or depleted.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	35 V
Tolerance	±20%
Package Type	Radial, Can
Lead Spacing	0.197" (5.00 mm)
Diameter	0.394" (10.00 mm)
Height	0.689" (17.50 mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C to 105°C
Lifetime @ 105°C	4000 Hrs

Substitute Part Grouping Explanation

Substitution for the UHD1V331MPD1TD is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Capacitance (330 µF), voltage rating (35 V), and tolerance (±20%) must match exactly
Physical Dimensions: Lead spacing (5.00 mm), diameter (10.00 mm), and height (17.50 mm) must be identical for PCB compatibility
Package Configuration: Radial, can-style through-hole mounting is required
Polarization: Polar configuration must be maintained

The three substitute parts listed below meet all these criteria. Differences in lifetime rating, impedance, ripple current handling, and product status are noted but do not prevent functional substitution in applications where the original part is no longer available.

Parameter Comparison

Parameter	UHD1V331MPD1TD (Nichicon)	ELXZ350ETD331MJ16S (Chemi-Con)	35ZLG330MEFCT810X16 (Rubycon)	EEU-FM1V331B (Panasonic)
Capacitance	330 µF	330 µF	330 µF	330 µF
Voltage Rating	35 V	35 V	35 V	35 V
Tolerance	±20%	±20%	±20%	±20%
Lead Spacing	5.00 mm	5.00 mm	5.00 mm	5.00 mm
Diameter	10.00 mm	10.00 mm	10.00 mm	10.00 mm
Height	17.50 mm	17.50 mm	17.50 mm	17.50 mm
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature	-40°C to 105°C	-55°C to 105°C	-40°C to 105°C	-40°C to 105°C
Lifetime @ 105°C	4000 Hrs	5000 Hrs	4000 Hrs	4000 Hrs
Impedance	38 mOhms	68 mOhms	20 mOhms	26 mOhms
Ripple Current @ 120 Hz	1.001 A	525 mA	1.001 A	1.253 A
Ripple Current @ 100 kHz	1.43 A	1.05 A	1.82 A	1.79 A
Product Status	Not For New Designs	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

ELXZ350ETD331MJ16S (Chemi-Con LXZ Series) is the upgrade substitute. This part maintains all critical electrical and mechanical parameters while offering extended lifetime (5000 hours at 105°C versus 4000 hours) and AEC-Q200 automotive qualification. The wider operating temperature range (-55°C to 105°C) provides additional margin. Product status is Active, ensuring long-term availability. Higher impedance (68 mOhms) may be a consideration in high-frequency ripple current applications.

35ZLG330MEFCT810X16 (Rubycon ZLG Series) is a parametric equivalent with Active product status. This part matches the original lifetime specification and operating temperature range. It offers the lowest impedance (20 mOhms) among all substitutes, providing superior performance in high-frequency ripple current scenarios (1.82 A @ 100 kHz). Packaging is Tape & Box rather than Cut Tape.

EEU-FM1V331B (Panasonic FM-A Series) is a parametric equivalent with Active product status and the highest inventory availability (14,280 pieces). Operating temperature and lifetime specifications match the original part. Impedance (26 mOhms) and ripple current performance are intermediate between the original and other substitutes. Packaging is Cut Tape, matching the original.

All three substitutes are ROHS3 compliant and carry the same HTSUS and ECCN classifications as the original part.

Frequently Asked Questions (FAQ)

Q: Can I use these substitute parts interchangeably with the UHD1V331MPD1TD?

A: Yes, all three substitute parts are electrically and mechanically equivalent. They share identical capacitance (330 µF), voltage rating (35 V), tolerance (±20%), and physical dimensions (10.00 mm diameter, 17.50 mm height, 5.00 mm lead spacing). PCB layout and mounting procedures remain unchanged.

Q: What is the difference between an "upgrade" substitute and a "parametric equivalent"?

A: The ELXZ350ETD331MJ16S is classified as an upgrade because it offers improved specifications (5000-hour lifetime, extended temperature range, AEC-Q200 certification) while maintaining full compatibility. The Rubycon and Panasonic parts are parametric equivalents because they match the original specifications without enhancement.

Q: Does the difference in impedance affect my circuit?

A: Impedance differences (ranging from 20 to 68 mOhms) primarily affect high-frequency ripple current performance. In applications with significant AC ripple at 100 kHz or higher, the Rubycon part (20 mOhms) provides superior performance. For general-purpose DC filtering applications, impedance variation is typically not critical.

Q: Why does the Chemi-Con substitute have lower ripple current at 120 Hz?

A: The ELXZ350ETD331MJ16S is rated for 525 mA at 120 Hz compared to 1.001 A for the original. This reflects different thermal design and internal construction. For applications requiring high low-frequency ripple current handling, the Panasonic (1.253 A) or Rubycon (1.001 A) parts are more closely matched to the original.

Q: Are all substitutes RoHS compliant?

A: Yes, all three substitute parts are ROHS3 compliant, matching the original part's environmental certification status.

Q: What packaging formats are available?

A: The Nichicon original and Panasonic substitute are supplied in Cut Tape (CT). The Rubycon substitute is supplied in Tape & Box (TB). Chemi-Con is also Cut Tape. Packaging format does not affect component performance or PCB compatibility.

Q: Which substitute should I choose for new inventory procurement?

A: For general-purpose applications, the Panasonic EEU-FM1V331B offers the best combination of Active product status, high availability, and performance matching. For automotive or extended-lifetime applications, the Chemi-Con ELXZ350ETD331MJ16S is recommended. For high-frequency ripple current performance, the Rubycon 35ZLG330MEFCT810X16 is optimal.

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