EKZH350ELL331MJC5S Equivalent & Substitute Parts

Part Overview

The EKZH350ELL331MJC5S is a 330 µF, 35 V aluminum electrolytic capacitor manufactured by Chemi-Con in the KZH series. This radial, through-hole component is rated for 6000 hours at 105°C and is designed for general-purpose applications requiring stable capacitance and ripple current handling. The part is currently active and in stock with 951 units available.

Substitute parts are necessary when the primary component becomes unavailable, when design requirements demand extended operational lifetime, or when alternative manufacturers' components offer improved electrical performance characteristics within the same physical and electrical envelope.

Substiute Parts

EKZH350ELL331MJC5S

Chemi-ConIn Stock: 1010EKZH350ELL331MJC5S Datasheet

Current PartRFQ

35ZLH330MEFC10X12.5

RubyconIn Stock: 443435ZLH330MEFC10X12.5 Datasheet

DirectRFQ

35YXJ330M10X12.5

RubyconIn Stock: 259435YXJ330M10X12.5 Datasheet

UpgradeRFQ

35ZLS330MEFC10X12.5

RubyconIn Stock: 97035ZLS330MEFC10X12.5 Datasheet

Parametric EquivalentRFQ

UHV1V331MPD

NichiconIn Stock: 2486UHV1V331MPD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of aluminum electrolytic capacitors is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Capacitance value: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage rating: 35 V (exact match required)
• Polarization: Polar (exact match required)
• Physical dimensions: 0.394" Dia × 0.551" Height, 5.00mm lead spacing (exact match required)
• Mounting type: Through Hole, Radial configuration (exact match required)

Performance Parameters (Variable):

• Lifetime at temperature: 6000 Hrs or 10000 Hrs @ 105°C
• Ripple current capability at 120 Hz and 100 kHz
• Impedance (ESR equivalent)

Compliance Parameters:

• RoHS3 compliance (all candidates meet this requirement)
• REACH status (affects suitability for new designs)
• Product status (Active vs. Not For New Designs)

All substitute parts listed maintain identical critical matching parameters. Variations in lifetime, ripple current, and impedance represent performance enhancements or alternative electrical characteristics within the same physical footprint.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Parametric Match):

The 35ZLS330MEFC10X12.5 (Rubycon ZLS series) is a direct parametric equivalent to the EKZH350ELL331MJC5S. Both components share identical capacitance, voltage rating, tolerance, physical dimensions, and thermal lifetime specifications (6000 Hrs @ 105°C). This part is Active and REACH Unaffected, making it suitable for new designs. Impedance and ripple current characteristics are equivalent.

Enhanced Performance Alternatives:

The 35ZLH330MEFC10X12.5 (Rubycon ZLH series) and 35YXJ330M10X12.5 (Rubycon YXJ series) both offer extended thermal lifetime of 10000 Hrs @ 105°C compared to the original 6000 Hrs specification. Both are Active products and REACH Unaffected. The ZLH variant provides superior ripple current handling at both 120 Hz (731.5 mA) and 100 kHz (1.33 A) with lower impedance (39 mOhms). The YXJ variant offers lower ripple current at 100 kHz (865 mA) with higher impedance (80 mOhms).

Legacy Component (Not Recommended for New Designs):

The UHV1V331MPD (Nichicon UHV series) is marked as "Not For New Designs" and has REACH Affected status. While it maintains parametric equivalence in capacitance, voltage, and physical dimensions, its product status restricts its use to legacy system maintenance and repair applications only. This component exhibits the highest ripple current capability at 100 kHz (2.475 A) but should not be selected for new circuit designs.

Selection Criteria:

For new designs requiring direct replacement with equivalent performance, select 35ZLS330MEFC10X12.5. For applications requiring extended operational lifetime and enhanced ripple current handling, select 35ZLH330MEFC10X12.5. Avoid UHV1V331MPD for new designs due to product status and REACH compliance considerations.

Frequently Asked Questions (FAQ)

Q: Can I substitute the EKZH350ELL331MJC5S with any of the listed alternatives without circuit modification?

A: Yes. All listed substitute parts maintain identical capacitance (330 µF), voltage rating (35 V), tolerance (±20%), physical dimensions (0.394" Dia × 0.551" Height), and lead spacing (5.00mm). Direct board-level substitution is electrically and mechanically compatible.

Q: What is the difference between the Rubycon ZLH and ZLS series alternatives?

A: The primary difference is thermal lifetime. The ZLH series is rated for 10000 Hrs @ 105°C, while the ZLS series matches the original 6000 Hrs @ 105°C specification. The ZLH also provides superior ripple current capability (731.5 mA @ 120 Hz, 1.33 A @ 100 kHz) and lower impedance (39 mOhms) compared to ZLS (682 mA @ 120 Hz, 1.24 A @ 100 kHz, 45 mOhms).

Q: Why is the Nichicon UHV1V331MPD marked as "Not For New Designs"?

A: The UHV1V331MPD is a legacy component. Its "Not For New Designs" status indicates that Nichicon has discontinued active development and support for this series. While it remains functionally equivalent, it should only be used for maintenance and repair of existing systems. New circuit designs must select from Active product status alternatives.

Q: Does REACH status affect component substitution?

A: REACH status indicates regulatory compliance for European Union chemical substance regulations. The original EKZH350ELL331MJC5S is REACH Unaffected, as are all Rubycon alternatives (35ZLS330MEFC10X12.5, 35ZLH330MEFC10X12.5, 35YXJ330M10X12.5). The Nichicon UHV1V331MPD is REACH Affected, which may restrict its use in certain applications or regions. For applications subject to REACH compliance requirements, select REACH Unaffected alternatives.

Q: What does impedance (ESR) variation mean for circuit performance?

A: Impedance values range from 39 mOhms (Rubycon ZLH) to 80 mOhms (Rubycon YXJ) across the substitute options. Lower impedance generally provides better high-frequency ripple current handling and reduced voltage ripple. The original EKZH350ELL331MJC5S and Rubycon ZLS both specify 45 mOhms, which is mid-range among the alternatives. Selection should be based on specific circuit ripple current requirements at operating frequencies.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts are supplied in Bulk packaging as Through Hole, Radial, Can configuration with identical lead spacing (5.00mm) and physical dimensions (0.394" Dia × 0.551" Height). No PCB layout modifications are required for substitution.

Q: Which substitute part offers the best overall performance?

A: The 35ZLH330MEFC10X12.5 (Rubycon ZLH) provides the highest performance specification with 10000 Hrs @ 105°C thermal lifetime, superior ripple current handling (731.5 mA @ 120 Hz, 1.33 A @ 100 kHz), and the lowest impedance (39 mOhms). It is Active and REACH Unaffected, making it suitable for new designs requiring enhanced reliability and performance margins.

Q: Can I use the Rubycon YXJ variant if my circuit has lower ripple current requirements?

A: Yes. The 35YXJ330M10X12.5 is a valid substitute if your circuit operates within its ripple current specifications (605.5 mA @ 120 Hz, 865 mA @ 100 kHz). However, its higher impedance (80 mOhms) may result in increased voltage ripple compared to alternatives. Verify that your circuit design tolerates this impedance characteristic before selection.