Equivalent & Substitute Parts for UHD1C331MPD1TD

Part Overview

The UHD1C331MPD1TD is a 330 µF, 16 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is rated for 3000 hours at 105°C and is classified as Not For New Designs. Due to its discontinued status, equivalent and substitute parts from active product lines are necessary for ongoing maintenance, repair, and legacy system support. Suitable alternatives maintain the same capacitance, voltage rating, and form factor while offering improved availability and active manufacturer support.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	16 V
Tolerance	±20%
Lifetime @ 105°C	3000 Hrs
Operating Temperature Range	-40°C ~ 105°C
Package Type	Radial, Can
Lead Spacing	0.138" (4.60 mm)
Size / Diameter	0.315" Dia (8.00 mm)
Height - Seated (Max)	0.512" (13.00 mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the UHD1C331MPD1TD is determined by strict equivalence in the following parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 16 V minimum (higher voltage ratings are acceptable as upgrades)
Tolerance: ±20% (standard tolerance for this category)
Package Type: Radial, Can configuration
Lead Spacing: 0.138" (4.60 mm)
Physical Dimensions: 0.315" Dia (8.00 mm), Height 0.512" (13.00 mm) maximum
Mounting Type: Through Hole
Polarization: Polar

Substitute parts are grouped into two categories:

Direct Substitutes (Same Voltage Rating - 16 V): Parts maintaining identical electrical specifications and form factor, suitable for direct replacement without circuit modification.

Upgraded Substitutes (Higher Voltage Rating - 25 V): Parts with increased voltage rating that provide enhanced safety margin and are mechanically compatible. These are suitable for applications where the higher voltage rating does not create design conflicts.

Parametric Equivalents: Parts from alternative manufacturers meeting all critical parameters, offering cross-manufacturer compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage Rating	Lifetime @ 105°C	Operating Temp Range	Product Status	Packaging
UHD1C331MPD1TD	Nichicon	UHD	330 µF	16 V	3000 Hrs	-40°C ~ 105°C	Not For New Designs	Cut Tape (CT)
UPA1C331MPD1TA	Nichicon	UPA	330 µF	16 V	3000 Hrs	-55°C ~ 105°C	Active	Cut Tape (CT)
UPA1E331MPD1TA	Nichicon	UPA	330 µF	25 V	3000 Hrs	-55°C ~ 105°C	Active	Cut Tape (CT)
UTT1E331MPD1TA	Nichicon	UTT	330 µF	25 V	5000 Hrs	-40°C ~ 105°C	Active	-
EKZE160ETC331MHB5D	Chemi-Con	KZE	330 µF	16 V	3000 Hrs	-40°C ~ 105°C	Active	Tape & Reel (TR)
REA0812331M016K	KYOCERA AVX	REA	330 µF	16 V	3000 Hrs	-40°C ~ 105°C	Active	Cut Tape (CT)
16ZLG330MEFCT78X11.5	Rubycon	ZLG	330 µF	16 V	3000 Hrs	-40°C ~ 105°C	Active	Tape & Box (TB)

Engineering Selection Recommendations

For Direct Replacement (Same Voltage - 16 V):

UPA1C331MPD1TA (Nichicon) is the primary direct substitute. It maintains identical electrical specifications to the UHD1C331MPD1TD while offering an extended operating temperature range (-55°C to 105°C versus -40°C to 105°C). Product status is Active, ensuring continued availability and manufacturer support. ROHS3 compliance is maintained.

EKZE160ETC331MHB5D (Chemi-Con) provides cross-manufacturer compatibility with identical voltage and capacitance ratings. Product status is Active. Packaging is Tape & Reel (TR) rather than Cut Tape, which may affect procurement workflows.

REA0812331M016K (KYOCERA AVX) offers an alternative from a third manufacturer with Active product status and identical electrical specifications. Cut Tape packaging matches the original part.

16ZLG330MEFCT78X11.5 (Rubycon) is a parametric equivalent with Active status and ROHS3 compliance. Tape & Box packaging differs from the original.

For Upgraded Voltage Rating (25 V):

UPA1E331MPD1TA (Nichicon) provides a 25 V rated alternative with identical capacitance and form factor. Extended operating temperature range (-55°C to 105°C) and Active product status support long-term availability. This upgrade is suitable when circuit design permits higher voltage ratings.

UTT1E331MPD1TA (Nichicon) offers the longest lifetime rating at 5000 hours @ 105°C with 25 V rating. Product status is Active. This option provides enhanced reliability for applications requiring extended operational life.

All recommended substitutes maintain ROHS3 compliance and are suitable for through-hole PCB assembly with identical lead spacing and physical dimensions.

Frequently Asked Questions (FAQ)

Q: Can UPA1C331MPD1TA directly replace UHD1C331MPD1TD without circuit modification?

A: Yes. UPA1C331MPD1TA maintains identical capacitance (330 µF), voltage rating (16 V), tolerance (±20%), and physical dimensions. The extended operating temperature range (-55°C to 105°C) provides additional margin. No circuit modification is required.

Q: What is the difference between 16 V and 25 V rated substitutes?

A: The 25 V rated parts (UPA1E331MPD1TA, UTT1E331MPD1TA) have higher voltage ratings than the original 16 V specification. These are suitable for direct replacement only if the circuit design permits operation at higher voltage ratings. They provide additional safety margin in applications with voltage transients or design uncertainty.

Q: Why does UTT1E331MPD1TA have a longer lifetime rating?

A: UTT1E331MPD1TA is rated for 5000 hours @ 105°C compared to 3000 hours for other options. This extended lifetime is a design characteristic of the UTT series and indicates enhanced reliability for long-term applications. The 25 V rating and extended temperature range (-40°C to 105°C) are additional benefits.

Q: Does packaging type affect electrical performance?

A: No. Packaging type (Cut Tape, Tape & Reel, Tape & Box) affects procurement and handling but does not alter electrical performance. All listed substitutes are electrically equivalent within their respective voltage ratings.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All recommended substitutes maintain ROHS3 compliance, matching the environmental and regulatory status of the original UHD1C331MPD1TD.

Q: Can I use a cross-manufacturer substitute (Chemi-Con, KYOCERA AVX, Rubycon) in a design originally specified for Nichicon?

A: Yes. All listed substitutes meet identical electrical and mechanical specifications. Cross-manufacturer substitution is standard practice in electronics manufacturing when the original manufacturer part becomes unavailable. Verify that your procurement and quality procedures permit cross-manufacturer sourcing.

Q: What is the significance of the extended temperature range in UPA1C331MPD1TA?

A: UPA1C331MPD1TA operates from -55°C to 105°C compared to -40°C to 105°C for the original part. This extended lower temperature limit provides additional operational margin in applications exposed to cold environments or thermal cycling.

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