MAL203874331E3 Equivalent & Substitute Parts

Part Overview

The MAL203874331E3 is a 330 µF, 10 V aluminum electrolytic capacitor in radial, can package manufactured by Vishay Beyschlag/Draloric/BC Components (038 RSU series). This component is rated for 2000 hours at 85°C and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for production and field replacement applications.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	10 V
Tolerance	±20%
Package Type	Radial, Can
Lead Spacing	0.098" (2.50 mm)
Diameter	0.248" (6.30 mm)
Height	0.492" (12.50 mm)
Mounting Type	Through Hole
Operating Temperature Range	-40°C to 85°C
Lifetime Rating	2000 Hrs @ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MAL203874331E3 is determined by strict equivalence in the following parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 10 V minimum (equal or higher voltage rating acceptable)
Tolerance: ±20% (as specified)
Package Type: Radial, Can (mechanical and electrical compatibility)
Lead Spacing: 0.098" (2.50 mm) or 0.197" (5.00 mm) for pin-compatible variants
Physical Dimensions: 0.248" diameter × 0.492" height (PCB footprint compatibility)
Mounting Type: Through Hole (same mounting technology)
Operating Temperature: -40°C to 85°C minimum (equal or extended range acceptable)
Polarization: Polar (required for electrolytic capacitors)

Substitute parts are categorized as follows:

Direct Equivalents (10 V rated, 2.50 mm lead spacing): Parts with identical electrical and mechanical specifications to the original component.

Direct Equivalents (10 V rated, 5.00 mm lead spacing): Parts with identical electrical specifications but alternative lead spacing for different PCB layouts.

Upgraded Equivalents (10 V rated): Parts with enhanced lifetime ratings or improved ripple current handling while maintaining 10 V voltage rating and 2.50 mm lead spacing.

Upgraded Equivalents (16 V rated): Parts with higher voltage rating (16 V) and enhanced performance characteristics, suitable for applications requiring increased voltage margin.

Parametric Equivalents: Parts with identical electrical specifications and matching lifetime at the original temperature rating.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Capacitance	Voltage	Lifetime @ Temp	Operating Temp Range	Lead Spacing	Product Status	Inventory
MAL203874331E3	Vishay Beyschlag/Draloric/BC Components	038 RSU	330 µF	10 V	2000 Hrs @ 85°C	-40°C to 85°C	0.098" (2.50 mm)	Obsolete	754 Pcs
MAL214274331E3	Vishay Beyschlag/Draloric/BC Components	142 RHS	330 µF	10 V	2500 Hrs @ 105°C	-40°C to 105°C	0.098" (2.50 mm)	Active	982 Pcs
10ZLJ330MTA6.3X11	Rubycon	ZLJ	330 µF	10 V	7000 Hrs @ 105°C	-40°C to 105°C	0.197" (5.00 mm)	Active	880 Pcs
10ZLJ330MT16.3X11	Rubycon	ZLJ	330 µF	10 V	7000 Hrs @ 105°C	-40°C to 105°C	0.098" (2.50 mm)	Active	1059 Pcs
860020273010	Würth Elektronik	WCAP-ATG5	330 µF	10 V	2000 Hrs @ 105°C	-40°C to 105°C	0.098" (2.50 mm)	Active	1435 Pcs
860020273003	Würth Elektronik	WCAP-ATG5	330 µF	10 V	2000 Hrs @ 105°C	-40°C to 105°C	0.098" (2.50 mm)	Active	2757 Pcs
860040273003	Würth Elektronik	WCAP-ATUL	330 µF	10 V	4000 Hrs @ 105°C	-40°C to 105°C	0.098" (2.50 mm)	Active	2269 Pcs
10YXJ330MT16.3X11	Rubycon	YXJ	330 µF	10 V	6000 Hrs @ 105°C	-40°C to 105°C	0.098" (2.50 mm)	Active	780 Pcs
16YXJ330MT16.3X11	Rubycon	YXJ	330 µF	16 V	7000 Hrs @ 105°C	-40°C to 105°C	0.098" (2.50 mm)	Active	751 Pcs
860020373011	Würth Elektronik	WCAP-ATG5	330 µF	16 V	2000 Hrs @ 105°C	-40°C to 105°C	0.098" (2.50 mm)	Active	8788 Pcs
UFW1A331MED1TD	Nichicon	UFW	330 µF	10 V	2000 Hrs @ 85°C	-40°C to 85°C	0.098" (2.50 mm)	Obsolete	4635 Pcs

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

MAL214274331E3 (Vishay Beyschlag/Draloric/BC Components) is the manufacturer-recommended equivalent. This part maintains the same electrical specifications as the original MAL203874331E3 while offering extended lifetime (2500 hours at 105°C versus 2000 hours at 85°C) and an expanded operating temperature range (-40°C to 105°C). Both parts are ROHS3 compliant and suitable for general-purpose applications. This part is active and widely available.

For Enhanced Reliability (10 V Rating, Extended Lifetime):

10ZLJ330MT16.3X11 (Rubycon, ZLJ series) provides the highest lifetime rating among 10 V equivalents at 7000 hours at 105°C with identical lead spacing (0.098", 2.50 mm). This part is active and recommended for applications requiring extended operational life. 860040273003 (Würth Elektronik, WCAP-ATUL series) offers 4000 hours at 105°C as an intermediate option with active status.

For Alternative Lead Spacing (10 V Rating):

10ZLJ330MTA6.3X11 (Rubycon, ZLJ series) is electrically identical to 10ZLJ330MT16.3X11 but features 0.197" (5.00 mm) lead spacing for PCB layouts requiring wider pin separation. This part maintains 7000-hour lifetime at 105°C and is active.

For Increased Voltage Margin (16 V Rating):

16YXJ330MT16.3X11 (Rubycon, YXJ series) and 860020373011 (Würth Elektronik, WCAP-ATG5 series) both provide 16 V voltage rating with 330 µF capacitance. The Rubycon part offers 7000-hour lifetime at 105°C, while the Würth part offers 2000 hours at 105°C. Both are active and suitable for applications requiring higher voltage headroom. Lead spacing is 0.098" (2.50 mm) for both.

For Parametric Equivalence (Matching Original Lifetime at 85°C):

860020273010 (Würth Elektronik, WCAP-ATG8 series) matches the original lifetime specification of 2000 hours at 85°C while maintaining 10 V rating and 0.098" lead spacing. This part is active and ROHS3 compliant.

UFW1A331MED1TD (Nichicon, UFW series) is an obsolete part with identical electrical specifications to the original. While available in inventory, this part shares obsolete status with the original MAL203874331E3 and is not recommended for new designs.

All substitute parts listed are ROHS3 compliant and suitable for through-hole mounting on standard PCB layouts with 0.098" (2.50 mm) lead spacing, except where noted for alternative spacing.

Frequently Asked Questions (FAQ)

Q: Can I use a 16 V rated capacitor in place of a 10 V rated capacitor?

A: Yes. A higher voltage rating provides increased voltage margin and is electrically compatible. The 16 V parts (16YXJ330MT16.3X11 and 860020373011) can substitute for 10 V applications without functional degradation. Physical dimensions and lead spacing remain identical.

Q: What is the difference between the Rubycon ZLJ and YXJ series?

A: Both series offer 330 µF capacitance with identical physical dimensions and lead spacing. The ZLJ series (10ZLJ330MT16.3X11) is rated for 7000 hours at 105°C. The YXJ series offers two variants: 10YXJ330MT16.3X11 (6000 hours at 105°C, 10 V) and 16YXJ330MT16.3X11 (7000 hours at 105°C, 16 V). Selection depends on required lifetime and voltage rating.

Q: Does lead spacing affect electrical performance?

A: Lead spacing (0.098" versus 0.197") affects PCB layout compatibility only. Electrical performance remains identical. Choose based on PCB design requirements. The 0.098" (2.50 mm) spacing is standard for most applications.

Q: Why is the MAL203874331E3 marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Equivalent active parts from other manufacturers provide identical or superior performance and ensure long-term availability for production and field replacement.

Q: Which substitute offers the best long-term reliability?

A: 10ZLJ330MT16.3X11 (Rubycon, ZLJ series) provides the highest lifetime rating at 7000 hours at 105°C with 10 V rating and standard 0.098" lead spacing. For 16 V applications, 16YXJ330MT16.3X11 offers equivalent 7000-hour lifetime.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All active substitute parts listed are ROHS3 compliant. UFW1A331MED1TD is also ROHS3 compliant but is obsolete and not recommended for new designs.

Q: What is the difference between Würth WCAP-ATG5 and WCAP-ATUL series?

A: Both series are 330 µF, 10 V aluminum electrolytic capacitors with identical physical dimensions and lead spacing. WCAP-ATG5 (860020273010, 860020273003) is rated for 2000 hours at 105°C. WCAP-ATUL (860040273003) is rated for 4000 hours at 105°C, offering extended lifetime in the same package.

Q: Can I mix different manufacturers in the same circuit?

A: Yes. All listed parts meet identical electrical and mechanical specifications for the 10 V, 330 µF rating. Different manufacturers can be used interchangeably within the same design, provided lead spacing and physical dimensions match the PCB layout.

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