SH331M035ST Equivalent & Substitute Parts Reference

Part Overview

The SH331M035ST is a 330 µF, 35 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete product status. The SH series represents legacy technology with a rated lifetime of 2000 hours at 105°C. Due to obsolescence, equivalent substitute parts from active manufacturers are necessary for new designs, repairs, and long-term supply chain continuity. Substitute parts maintain the core electrical specifications (330 µF capacitance, 35 V rating, ±20% tolerance) while offering improved reliability metrics, extended operational lifetimes, and active manufacturing support.

Substiute Parts

SH331M035ST

Cornell Dubilier Electronics (CDE)In Stock: 1118SH331M035ST Datasheet

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SEK331M035ST

Cornell Dubilier Electronics (CDE)In Stock: 1135SEK331M035ST Datasheet

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35YXJ330M10X12.5

RubyconIn Stock: 259435YXJ330M10X12.5 Datasheet

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EEU-EB1V331

Panasonic Electronic ComponentsIn Stock: 3195EEU-EB1V331 Datasheet

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EEU-FC1V331

Panasonic Electronic ComponentsIn Stock: 20445EEU-FC1V331 Datasheet

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EKZE350ELL331MJ16S

Chemi-ConIn Stock: 10109EKZE350ELL331MJ16S Datasheet

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UHE1V331MPD

NichiconIn Stock: 1197UHE1V331MPD Datasheet

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UPW1V331MPD

NichiconIn Stock: 1000474UPW1V331MPD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the SH331M035ST is based on strict electrical and mechanical parameter matching. All substitute parts must satisfy the following criteria:

Core Electrical Parameters (Non-Negotiable):

• Capacitance: 330 µF
• Voltage Rating: 35 V
• Tolerance: ±20%
• Polarization: Polar

Mechanical Parameters (Non-Negotiable):

• Lead Spacing: 0.197" (5.00 mm)
• Diameter: 0.394" (10.00 mm)
• Mounting Type: Through Hole
• Package: Radial, Can

Performance Parameters (Allowed Variation):

• Lifetime @ 105°C: Equal to or greater than 2000 hours
• Operating Temperature Range: Equal to or wider than -40°C to 105°C
• ESR / Impedance: Lower values indicate improved performance
• Ripple Current Capability: Higher values indicate improved performance

Compliance Parameters:

• RoHS3 Compliant (all substitutes meet this requirement)

Substitute parts are grouped by product status (Active vs. Not For New Designs) and lifetime rating. Parts with extended lifetimes (3000+ hours) and active manufacturing status are preferred for new designs.

Parameter Comparison

Engineering Selection Recommendations

For New Designs (Active Product Status Required):

Select from the following active-status alternatives:

• SEK331M035ST (Cornell Dubilier Electronics): Direct manufacturer upgrade from the obsolete SH331M035ST. Maintains identical electrical specifications and form factor. Extended operating temperature range (-55°C to 105°C). Recommended for direct replacement in existing designs with minimal qualification effort.

• EEU-FC1V331 (Panasonic Electronic Components): Active product with AEC-Q200 automotive qualification. Rated for 3000 hours at 105°C. Extended operating temperature range (-55°C to 105°C). Suitable for automotive and industrial applications requiring compliance certification.

• 35YXJ330M10X12.5 (Rubycon): Active product with extended lifetime of 10000 hours at 105°C. Compact height (0.551 inches / 14.00 mm) compared to original. Highest ripple current capability at high frequency (865 mA @ 100 kHz). Recommended for space-constrained applications.

• EEU-EB1V331 (Panasonic Electronic Components): Active product with 10000-hour lifetime at 105°C. Slightly taller form factor (0.669 inches / 17.00 mm). Suitable for general-purpose applications requiring extended operational life.

• EKZE350ELL331MJ16S (Chemi-Con): Active product with 4000-hour lifetime at 105°C. Lowest impedance (38 mOhms) and highest ripple current capability at high frequency (1.43 A @ 100 kHz). Recommended for high-ripple-current applications.

For Existing Inventory Management (Not For New Designs):

• UHE1V331MPD (Nichicon): Not recommended for new designs. 7000-hour lifetime at 105°C. Suitable for repair and maintenance of existing equipment only.

• UPW1V331MPD (Nichicon): Not recommended for new designs. 5000-hour lifetime at 105°C. Extensive inventory availability (1,000,400 pcs). Suitable for repair and maintenance of existing equipment only.

Height Compatibility Consideration:

The original SH331M035ST has a maximum seated height of 0.630 inches (16.00 mm). Substitute parts with different heights require PCB layout verification:

• 35YXJ330M10X12.5: 0.551 inches (14.00 mm) — shorter, no clearance issues
• EEU-EB1V331: 0.669 inches (17.00 mm) — taller, verify clearance
• EKZE350ELL331MJ16S: 0.689 inches (17.50 mm) — taller, verify clearance

Frequently Asked Questions (FAQ)

Q1: Can I use any of these substitute parts as a direct replacement for the SH331M035ST?

A: All listed substitute parts maintain the core electrical specifications (330 µF, 35 V, ±20% tolerance) and mechanical compatibility (lead spacing 5.00 mm, diameter 10.00 mm, through-hole mounting). However, height variations require PCB clearance verification. The SEK331M035ST offers the most direct replacement with identical form factor and specifications.

Q2: What is the primary difference between the obsolete SH331M035ST and active substitutes?

A: The SH331M035ST is obsolete with a 2000-hour lifetime at 105°C. Active substitutes offer extended lifetimes (3000 to 10000 hours at 105°C), improved reliability, and continued manufacturing support. Extended lifetime translates to longer operational life in field applications.

Q3: Which substitute part should I select for a new design?

A: For new designs, select only from parts with "Active" product status: SEK331M035ST, EEU-FC1V331, 35YXJ330M10X12.5, EEU-EB1V331, or EKZE350ELL331MJ16S. The SEK331M035ST provides the most direct upgrade path. For automotive applications, EEU-FC1V331 with AEC-Q200 qualification is recommended.

Q4: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this reference are RoHS3 compliant, matching the compliance status of the original SH331M035ST.

Q5: What does "Not For New Designs" mean for UHE1V331MPD and UPW1V331MPD?

A: Parts marked "Not For New Designs" are in mature or declining production phases. These parts are suitable for repair and maintenance of existing equipment but should not be selected for new product development. Active-status alternatives are preferred for new designs.

Q6: How do I verify height compatibility in my PCB layout?

A: Compare the maximum seated height of your original design (0.630 inches / 16.00 mm for SH331M035ST) with the substitute part height. If the substitute is taller (EEU-EB1V331 at 0.669 inches or EKZE350ELL331MJ16S at 0.689 inches), verify clearance to adjacent components, solder mask, and conformal coating. If the substitute is shorter (35YXJ330M10X12.5 at 0.551 inches), no clearance issues are expected.

Q7: Which substitute offers the best ripple current performance?

A: EKZE350ELL331MJ16S provides the highest ripple current capability at high frequency (1.43 A @ 100 kHz) and the lowest impedance (38 mOhms). This part is recommended for applications with high AC ripple current requirements.

Q8: Can I use UPW1V331MPD for new designs if inventory is available?

A: No. Despite extensive inventory availability (1,000,400 pcs), UPW1V331MPD is marked "Not For New Designs." Use active-status alternatives for new product development to ensure long-term supply chain support and compliance with design standards.

Q9: What is the significance of operating temperature range differences?

A: The original SH331M035ST operates from -40°C to 105°C. Some substitutes extend this range to -55°C to 105°C (SEK331M035ST, EEU-FC1V331, UPW1V331MPD). Extended lower-temperature operation is beneficial for applications in cold environments or equipment with wide operating conditions.

Q10: Is ESR or impedance specification critical for substitution?

A: ESR and impedance affect ripple current handling and high-frequency performance. Lower values indicate better performance. The original SH331M035ST specifies 560 mOhm ESR @ 120 Hz. Substitutes with lower impedance (EKZE350ELL331MJ16S at 38 mOhms, UPW1V331MPD at 68 mOhms) provide improved performance. For general-purpose applications, impedance differences are acceptable if ripple current requirements are met.