SH2R2M100ST Equivalent & Substitute Parts Reference

Part Overview

The SH2R2M100ST is a 2.2 µF, 100 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part is rated for general-purpose applications with a 2000-hour lifetime at 105°C and operates across the temperature range of -40°C to 105°C.

Substiute Parts

SH2R2M100ST

Cornell Dubilier Electronics (CDE)In Stock: 1042SH2R2M100ST Datasheet

Current PartRFQ

SEK2R2M100ST

Cornell Dubilier Electronics (CDE)In Stock: 3985SEK2R2M100ST Datasheet

UpgradeRFQ

UPW2A2R2MDD

NichiconIn Stock: 1876UPW2A2R2MDD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SH2R2M100ST is determined by strict adherence to the following parameters:

Critical Electrical Parameters:

• Capacitance value must equal 2.2 µF
• Voltage rating must be 100 V or higher
• Tolerance must be ±20% or tighter
• Lifetime rating must be 2000 hours at 105°C or greater
• Operating temperature range must encompass -40°C to 105°C minimum
• Polarization must be polar

Critical Mechanical Parameters:

• Package type must be radial, can configuration
• Mounting type must be through-hole
• Lead spacing must be 0.079" (2.00mm)
• Diameter must be 0.197" (5.00mm)
• Height must not exceed 0.433" (11.00mm) for direct footprint compatibility

Compliance Parameters:

• RoHS3 compliance required

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

SEK2R2M100ST (CDE - Active Status)

The SEK2R2M100ST is the primary recommended substitute. It is manufactured by the same supplier (Cornell Dubilier Electronics) and maintains active product status, ensuring long-term availability and supply chain stability. All critical electrical parameters match the original specification: 2.2 µF capacitance, 100 V rating, ±20% tolerance, and 2000-hour lifetime at 105°C. The operating temperature range extends to -55°C, providing superior low-temperature performance compared to the original -40°C minimum. ESR values are equivalent (60.32 Ohm versus 60.29 Ohm @ 120Hz). The primary design consideration is the increased height of 0.512" (13.00mm) versus the original 0.433" (11.00mm), requiring verification of available vertical clearance on the PCB. RoHS3 compliance and MSL rating of 1 (Unlimited) are confirmed.

UPW2A2R2MDD (Nichicon - Obsolete Status)

The UPW2A2R2MDD is a direct functional equivalent manufactured by Nichicon. It matches all critical parameters: 2.2 µF, 100 V, ±20% tolerance, 2000-hour lifetime at 105°C, and identical mechanical dimensions (0.197" diameter, 0.433" height, 0.079" lead spacing). The operating temperature range extends to -55°C. However, this part is classified as obsolete, presenting potential long-term procurement challenges. ESR data is not provided; impedance is specified at 9.8 Ohms. This substitute is suitable for applications where the original SH2R2M100ST is being replaced in existing designs, provided inventory availability is confirmed.

Selection Criteria Summary:

• For new designs or long-term production: SEK2R2M100ST (active status, same manufacturer)
• For direct replacement in existing designs: UPW2A2R2MDD (identical dimensions, Nichicon alternative)
• Height constraint verification required for SEK2R2M100ST due to 2mm increase

Frequently Asked Questions (FAQ)

Q: Can SEK2R2M100ST be used as a direct drop-in replacement for SH2R2M100ST?

A: SEK2R2M100ST is electrically equivalent and mechanically compatible in terms of lead spacing (0.079" / 2.00mm) and diameter (0.197" / 5.00mm). However, the height increases from 0.433" (11.00mm) to 0.512" (13.00mm). Verify available vertical clearance on the PCB before substitution. If height is constrained, UPW2A2R2MDD maintains the original 0.433" height.

Q: What is the significance of the operating temperature range difference?

A: The SH2R2M100ST operates from -40°C to 105°C. Both substitutes extend the lower limit to -55°C, providing enhanced performance in cold environments. This is a performance improvement with no negative impact on compatibility. The upper temperature limit of 105°C and the 2000-hour lifetime rating at this temperature remain unchanged across all three parts.

Q: Why is SEK2R2M100ST recommended over UPW2A2R2MDD?

A: SEK2R2M100ST holds active product status, ensuring continued availability and manufacturing support from Cornell Dubilier Electronics. UPW2A2R2MDD is obsolete, which may result in limited inventory and eventual unavailability. For new designs or long-term production runs, active-status components are preferred.

Q: Are there any electrical performance differences between the substitutes?

A: All three parts share identical electrical specifications: 2.2 µF capacitance, 100 V rating, ±20% tolerance, and 2000-hour lifetime at 105°C. ESR values are nearly identical (SH2R2M100ST: 60.29 Ohm @ 120Hz; SEK2R2M100ST: 60.32 Ohm). UPW2A2R2MDD does not specify ESR but provides impedance at 9.8 Ohms. Ripple current ratings differ slightly between parts but are not provided as selection criteria in this reference.

Q: What compliance certifications apply to these substitutes?

A: All three parts are RoHS3 compliant. SEK2R2M100ST includes REACH Unaffected status and MSL rating of 1 (Unlimited). UPW2A2R2MDD is REACH Unaffected with MSL Not Applicable. All parts carry ECCN EAR99 and HTSUS 8532.22.0020 classifications.

Q: Can these parts be used interchangeably in the same circuit?

A: Yes, within the constraints noted. All three parts are polar aluminum electrolytic capacitors with identical capacitance, voltage, tolerance, and lifetime ratings. Mechanical compatibility is confirmed for lead spacing and diameter. Height verification is required only for SEK2R2M100ST. No circuit redesign is necessary.

Q: What should be verified before implementing a substitution?

A: Confirm (1) available PCB height clearance, particularly for SEK2R2M100ST; (2) inventory availability and lead time for the selected substitute; (3) that the through-hole mounting type is compatible with the PCB design; (4) that the 0.079" (2.00mm) lead spacing matches the PCB footprint.