SH3R3M160ST Equivalent & Substitute Parts

Part Overview

The SH3R3M160ST is a 3.3 µF, 160 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, indicating discontinued production and limited availability. The part operates across a temperature range of -25°C to 105°C with a rated lifetime of 2000 hours at 105°C, suitable for general-purpose applications requiring polar capacitive filtering and energy storage.

Due to its obsolete status, equivalent and substitute parts with active production status or extended operational parameters are necessary for design continuity and procurement reliability.

Substiute Parts

SH3R3M160ST

Cornell Dubilier Electronics (CDE)In Stock: 1114SH3R3M160ST Datasheet

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SEK3R3M250ST

Cornell Dubilier Electronics (CDE)In Stock: 775SEK3R3M250ST Datasheet

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UPW2D3R3MPD

NichiconIn Stock: 943UPW2D3R3MPD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SH3R3M160ST is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Capacitance: 3.3 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can (exact match required)
• Lead Spacing: 0.138" (3.50mm) (exact match required)
• Case Diameter: 0.315" (8.00mm) (exact match required)

Allowable Variation Parameters:

• Voltage - Rated: Equal to or greater than 160 V
• ESR @ 120Hz: Equal to or less than 60.29 Ohm
• Lifetime @ 105°C: Equal to or greater than 2000 Hrs
• Operating Temperature Range: Equal to or broader than -25°C to 105°C
• Ripple Current: Equal to or greater than specified values
• Height - Seated (Max): Equal to or less than 0.453" (11.50mm)

Two substitute parts meet these criteria with variations in voltage rating, ESR characteristics, and operational lifetime.

Parameter Comparison

Engineering Selection Recommendations

SEK3R3M250ST (Cornell Dubilier Electronics)

This substitute provides an upgrade path with active product status. The 250 V rated voltage exceeds the original 160 V specification, providing increased voltage margin for circuit protection. The ESR remains equivalent at 60.32 Ohm, maintaining electrical performance characteristics. Operating temperature range extends to -40°C, broadening environmental compatibility. Height reduction to 0.433" (11.00mm) from 0.453" (11.50mm) improves board space efficiency. ROHS3 compliance and active production status ensure long-term availability and supply chain reliability.

UPW2D3R3MPD (Nichicon)

This substitute offers extended operational lifetime of 3000 hours at 105°C, compared to 2000 hours in the original part. The 200 V rated voltage provides adequate margin above the 160 V requirement. Operating temperature range extends to -40°C. Identical mechanical dimensions and lead spacing ensure direct board-level compatibility. ROHS3 compliance is maintained. Product status is obsolete; however, current inventory availability is documented at 836 pieces.

Selection Basis:

For new designs requiring long-term supply assurance, SEK3R3M250ST is preferred due to active product status. For applications where extended thermal lifetime is critical, UPW2D3R3MPD provides superior performance at 3000 hours. Both parts maintain full electrical and mechanical compatibility with the original SH3R3M160ST specification envelope.

Frequently Asked Questions (FAQ)

Q: Can SEK3R3M250ST be used as a direct replacement for SH3R3M160ST?

A: Yes. SEK3R3M250ST meets all mandatory compatibility criteria: identical 3.3 µF capacitance, ±20% tolerance, polar configuration, through-hole mounting, radial can package, 3.50mm lead spacing, and 8.00mm case diameter. The 250 V rating exceeds the 160 V requirement, providing additional voltage margin. Height is reduced to 11.00mm, which is within the 11.50mm maximum specification.

Q: What is the advantage of UPW2D3R3MPD over the original SH3R3M160ST?

A: UPW2D3R3MPD extends the operational lifetime to 3000 hours at 105°C, compared to 2000 hours in SH3R3M160ST. The 200 V rating provides adequate voltage margin above 160 V. Operating temperature range extends to -40°C. Mechanical dimensions and lead spacing are identical, ensuring direct board compatibility.

Q: Are there any height restrictions when substituting with SEK3R3M250ST?

A: SEK3R3M250ST has a maximum seated height of 0.433" (11.00mm), which is 0.020" shorter than the original SH3R3M160ST at 0.453" (11.50mm). This reduction improves board space efficiency and does not create height conflicts in applications designed for the original part.

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. Both SEK3R3M250ST and UPW2D3R3MPD are ROHS3 compliant, matching the compliance status of the original SH3R3M160ST.

Q: What is the difference in ESR between the main part and SEK3R3M250ST?

A: ESR values are equivalent. SH3R3M160ST measures 60.29 Ohm at 120Hz, while SEK3R3M250ST measures 60.32 Ohm at 120Hz. This negligible difference of 0.03 Ohm does not affect circuit performance.

Q: Can these substitutes handle higher ripple currents?

A: SEK3R3M250ST supports higher ripple currents: 42 mA at 120 Hz (versus 36 mA in the original) and 67.2 mA at 10 kHz (versus 57.6 mA in the original). UPW2D3R3MPD maintains the same ripple current specification of 36 mA at 120 Hz as the original part.

Q: What is the current inventory status of these substitutes?

A: SEK3R3M250ST has 757 pieces in stock with active product status. UPW2D3R3MPD has 836 pieces in stock with obsolete product status. The original SH3R3M160ST has 1103 pieces available.

Q: Are there any temperature range limitations when using these substitutes?

A: Both substitutes extend the lower operating temperature limit to -40°C, compared to -25°C in the original SH3R3M160ST. This broader range provides enhanced cold-temperature performance. Upper temperature limit remains 105°C across all three parts.