SH4R7M100ST Equivalent & Substitute Parts Reference

Part Overview

The SH4R7M100ST is a 4.7 µF, 100 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 -40°C to 105°C with a rated lifetime of 2000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Due to obsolete status and finite inventory, identification of equivalent and substitute parts is necessary to ensure design continuity and procurement reliability for applications currently utilizing this component.

Substiute Parts

SH4R7M100ST

Cornell Dubilier Electronics (CDE)In Stock: 797SH4R7M100ST Datasheet

Current PartRFQ

SEK4R7M100ST

Cornell Dubilier Electronics (CDE)In Stock: 938SEK4R7M100ST Datasheet

UpgradeRFQ

UPW2A4R7MDD

NichiconIn Stock: 1377UPW2A4R7MDD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SH4R7M100ST is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Capacitance: 4.7 µF (exact match required)
• Voltage Rating: 100 V (minimum requirement)
• Tolerance: ±20% (exact match required)
• Lifetime: 2000 Hrs @ 105°C (minimum requirement)
• Package: Radial, Can (exact match required)
• Lead Spacing: 0.079" (2.00mm) (exact match required)
• Mounting Type: Through Hole (exact match required)

Acceptable Variation Parameters:

• Operating Temperature Range: May extend beyond -40°C to 105°C (wider range acceptable)
• Height - Seated: Variation acceptable if PCB clearance permits
• ESR (Equivalent Series Resistance): Variation acceptable within application ripple current requirements
• Ripple Current: Variation acceptable if application requirements are met

The substitute parts identified below satisfy all critical matching parameters and maintain functional equivalence for general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SEK4R7M100ST

The SEK4R7M100ST is the preferred substitute for the SH4R7M100ST. Both components are manufactured by Cornell Dubilier Electronics and share identical electrical specifications (4.7 µF, 100 V, ±20% tolerance, 2000 Hrs @ 105°C). The SEK4R7M100ST holds active product status, ensuring long-term availability and supply chain reliability. The extended operating temperature range (-55°C to 105°C) provides additional margin for applications with lower temperature exposure. The height difference (0.512" vs. 0.433") requires verification of PCB clearance but does not affect electrical compatibility. ROHS3 compliance is maintained.

Secondary Recommendation: UPW2A4R7MDD

The UPW2A4R7MDD manufactured by Nichicon is a functionally equivalent alternative. This component matches all critical parameters: 4.7 µF capacitance, 100 V rating, ±20% tolerance, 2000 Hrs @ 105°C lifetime, and identical package dimensions (0.197" diameter, 0.433" height, 0.079" lead spacing). The extended operating temperature range (-55°C to 105°C) and higher ripple current capability at high frequency (74 mA @ 100 kHz) provide additional performance margin. However, the UPW2A4R7MDD is classified as obsolete. Current inventory of 1318 pieces provides near-term availability, but long-term procurement should prioritize the active SEK4R7M100ST.

Compliance Verification:

All three components maintain ROHS3 compliance, satisfying regulatory requirements for restricted substances. The SEK4R7M100ST additionally carries REACH Unaffected status, providing enhanced environmental documentation.

Frequently Asked Questions (FAQ)

Q: Can SEK4R7M100ST directly replace SH4R7M100ST without PCB modification?

A: Yes, with one consideration. The SEK4R7M100ST has a maximum seated height of 0.512" compared to 0.433" for the SH4R7M100ST. Verify that PCB clearance above the component location accommodates the additional 0.079" height. Lead spacing (0.079") and diameter (0.197") are identical, ensuring footprint compatibility.

Q: What is the difference between ESR specifications for these parts?

A: The SH4R7M100ST specifies 28.22 Ohm ESR @ 120Hz, and the SEK4R7M100ST specifies 28.23 Ohm ESR. This 0.01 Ohm difference is negligible and does not affect circuit performance. The UPW2A4R7MDD does not publish ESR data but specifies impedance of 4.6 Ohms, which is not directly comparable to ESR measurements at specific frequencies.

Q: Are ripple current ratings interchangeable between these parts?

A: Ripple current ratings must be evaluated against application requirements. The SH4R7M100ST provides 37 mA @ 120Hz and 51.8 mA @ 10 kHz. The UPW2A4R7MDD provides 22.2 mA @ 120Hz and 74 mA @ 100 kHz. If your application requires 37 mA @ 120Hz, the UPW2A4R7MDD at 22.2 mA is insufficient. Verify application ripple current specifications before selection.

Q: Why is SEK4R7M100ST preferred over UPW2A4R7MDD despite both being functionally equivalent?

A: The SEK4R7M100ST holds active product status, indicating ongoing manufacture and long-term availability. The UPW2A4R7MDD is obsolete, presenting future procurement risk. For new designs or long-term production, the active SEK4R7M100ST ensures supply chain continuity.

Q: Do all three parts require the same soldering and assembly procedures?

A: Yes. All three components are through-hole radial can capacitors with identical lead spacing (0.079") and mounting type. Standard through-hole soldering procedures apply to all three parts. The height variation of the SEK4R7M100ST requires only clearance verification, not procedural changes.

Q: Are there any moisture sensitivity or storage differences between these parts?

A: The SH4R7M100ST and UPW2A4R7MDD list MSL as Not Applicable, indicating no moisture sensitivity. The SEK4R7M100ST specifies MSL 1 (Unlimited), also indicating no moisture sensitivity. All three parts can be stored under standard industrial conditions without special moisture control.