SH4R7M250ST Equivalent & Substitute Parts Reference

Part Overview

The SH4R7M250ST is a 4.7 µF, 250 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 from original sources. 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 stable capacitance and voltage performance.

Due to obsolete status, equivalent and substitute parts become necessary for ongoing maintenance, repair, and new design implementations where the original component is no longer procurable through standard distribution channels.

Key Parameters

Parameter	Value	Unit
Capacitance	4.7	µF
Voltage - Rated	250	V
Tolerance	±20%	-
ESR @ 120Hz	42.33	Ohm
Lifetime @ 105°C	2000	Hrs
Operating Temperature Range	-25°C to 105°C	-
Ripple Current @ 120 Hz	50	mA
Ripple Current @ 10 kHz	80	mA
Lead Spacing	0.197" (5.00mm)	-
Case Diameter	0.394" (10.00mm)	-
Height - Seated (Max)	0.472" (12.00mm)	-
Mounting Type	Through Hole	-
Package / Case	Radial, Can	-
Polarization	Polar	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the SH4R7M250ST is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters (Non-Negotiable):

Capacitance: 4.7 µF
Voltage Rating: 250 V
Tolerance: ±20%
Polarization: Polar
Mounting Type: Through Hole
Lead Spacing: 0.197" (5.00mm)
Case Diameter: 0.394" (10.00mm)

Compatible Variation Parameters:

Height - Seated (Max): Tolerance up to 0.551" (14.00mm) acceptable for through-hole mounting
ESR @ 120Hz: Variation acceptable within general-purpose application requirements
Lifetime @ 105°C: Extended lifetime (5000 Hrs) provides superior performance margin
Operating Temperature Range: Extended lower temperature limit (-40°C) provides enhanced capability
Ripple Current Ratings: Equal or higher ratings ensure adequate performance

Compliance Requirements:

RoHS3 Compliant status required
ECCN: EAR99 classification maintained

Two substitute parts meet these criteria and are grouped as follows:

Upgrade Substitute: UPW2E4R7MPD (Nichicon) - Extended lifetime and temperature range Similar Substitute: 475CKH250M (Cornell Dubilier / Illinois Capacitor) - Active product status with enhanced ripple current capability

Parameter Comparison

Parameter	SH4R7M250ST (Main)	UPW2E4R7MPD (Upgrade)	475CKH250M (Similar)
Manufacturer	Cornell Dubilier Electronics	Nichicon	Cornell Dubilier / Illinois Capacitor
Capacitance	4.7 µF	4.7 µF	4.7 µF
Voltage - Rated	250 V	250 V	250 V
Tolerance	±20%	±20%	±20%
ESR @ 120Hz	42.33 Ohm	Not Specified	52.911 Ohm
Lifetime @ 105°C	2000 Hrs	5000 Hrs	2000 Hrs
Operating Temperature	-25°C to 105°C	-40°C to 105°C	-25°C to 105°C
Ripple Current @ 120 Hz	50 mA	50 mA	60 mA
Ripple Current @ 10 kHz	80 mA	80 mA	150 mA @ 100 kHz
Lead Spacing	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)
Case Diameter	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)
Height - Seated (Max)	0.472" (12.00mm)	0.492" (12.50mm)	0.551" (14.00mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can
Polarization	Polar	Polar	Polar
Product Status	Obsolete	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Mechanical and Electrical Compatibility):

The 475CKH250M represents the optimal direct replacement option. This part maintains identical electrical specifications (4.7 µF, 250 V, ±20% tolerance) and mechanical footprint (0.197" lead spacing, 0.394" diameter) as the SH4R7M250ST. The 475CKH250M carries active product status, ensuring ongoing availability and supply chain stability. Height increase from 0.472" to 0.551" remains within acceptable through-hole mounting tolerances for standard PCB layouts. Enhanced ripple current capability (60 mA @ 120 Hz, 150 mA @ 100 kHz) provides performance margin without circuit modification. RoHS3 compliance and REACH unaffected status align with current regulatory requirements.

For Extended Lifetime Applications:

The UPW2E4R7MPD (Nichicon) provides superior reliability characteristics with 5000-hour lifetime at 105°C, compared to 2000 hours for the original part. Extended operating temperature range (-40°C to 105°C) accommodates broader environmental conditions. Identical electrical ratings and mechanical lead spacing ensure direct PCB compatibility. Height increase of 0.492" (12.50mm) remains within through-hole mounting tolerance. Obsolete product status limits future availability; procurement should prioritize current inventory levels.

Compliance Verification:

Both substitute parts maintain ROHS3 compliance and EAR99 ECCN classification, satisfying regulatory requirements for the original SH4R7M250ST application context.

Frequently Asked Questions (FAQ)

Q: Can the 475CKH250M be used as a direct replacement for SH4R7M250ST without circuit modification?

A: Yes. Both parts share identical capacitance (4.7 µF), voltage rating (250 V), tolerance (±20%), lead spacing (0.197"), and case diameter (0.394"). The 475CKH250M height of 0.551" exceeds the original 0.472" by 0.079", which remains within standard through-hole PCB mounting clearances. No circuit modification is required.

Q: What is the significance of the height difference between substitute parts?

A: The SH4R7M250ST measures 0.472" seated height, while UPW2E4R7MPD measures 0.492" and 475CKH250M measures 0.551". For through-hole mounted radial capacitors, these variations are accommodated by standard PCB layout spacing. Verify clearance to adjacent components or enclosure constraints in specific applications.

Q: Why does UPW2E4R7MPD show "Not Specified" for ESR?

A: ESR (Equivalent Series Resistance) data is not provided in the component specification for UPW2E4R7MPD. The original SH4R7M250ST specifies 42.33 Ohm @ 120Hz, and 475CKH250M specifies 52.911 Ohm @ 120Hz. For general-purpose applications, both values fall within acceptable ranges. Contact the manufacturer for detailed ESR specifications if this parameter is critical to circuit performance.

Q: Is the 475CKH250M preferable due to active product status?

A: Yes. The 475CKH250M carries active product status, indicating ongoing manufacture and availability through distribution channels. Both UPW2E4R7MPD and SH4R7M250ST are obsolete, limiting long-term procurement options. For new designs or sustained production requirements, 475CKH250M provides supply chain continuity.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. SH4R7M250ST, UPW2E4R7MPD, and 475CKH250M are all ROHS3 compliant. This compliance status is maintained across all substitute options.

Q: What is the impact of higher ripple current ratings in 475CKH250M?

A: The 475CKH250M specifies 60 mA @ 120 Hz and 150 mA @ 100 kHz, compared to 50 mA @ 120 Hz and 80 mA @ 10 kHz for SH4R7M250ST. Higher ripple current capability indicates enhanced thermal performance and reduced internal heating under AC current stress. This represents a performance improvement with no negative impact on circuit compatibility.

Q: Can UPW2E4R7MPD be used in applications requiring extended temperature operation?

A: Yes. UPW2E4R7MPD operates across -40°C to 105°C, extending the lower temperature limit by 15°C compared to SH4R7M250ST (-25°C to 105°C). This extended range accommodates applications in cold environments or equipment with wide operating temperature specifications.

Q: Are there any packaging or inventory considerations for these substitutes?

A: SH4R7M250ST is available in 906 pieces (new original, in stock). UPW2E4R7MPD is available in 1088 pieces (bulk packaging). 475CKH250M is available in 1847 pieces (bulk packaging, active status). Bulk packaging indicates suitability for production quantities; verify minimum order quantities with suppliers for small-volume requirements.

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