SH3R3M200ST Equivalent and Substitute Parts

Part Overview

The SH3R3M200ST is a 3.3 µF, 200 V aluminum electrolytic capacitor in radial through-hole configuration manufactured by Cornell Dubilier Electronics. This component is rated for general-purpose applications with an operating temperature range of -25°C to 105°C and a rated lifetime of 2000 hours at 105°C. The product status is obsolete, making equivalent and substitute parts necessary for ongoing procurement and circuit maintenance.

Key Parameters

Parameter	SH3R3M200ST
Capacitance	3.3 µF
Tolerance	±20%
Voltage - Rated	200 V
ESR @ 120 Hz	60.29 Ohm
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-25°C ~ 105°C
Ripple Current @ 120 Hz	36 mA
Ripple Current @ 10 kHz	57.6 mA
Lead Spacing	0.138" (3.50 mm)
Size / Dimension	0.315" Dia (8.00 mm)
Height - Seated (Max)	0.453" (11.50 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of aluminum electrolytic capacitors is determined by strict adherence to electrical and mechanical compatibility. The following parameters must match or be superior in the substitute part:

Mandatory Matching Parameters:

Capacitance: 3.3 µF (must be equal)
Tolerance: ±20% (must be equal or tighter)
Voltage Rating: must be equal to or greater than 200 V
Package Type: Radial, Can through-hole configuration
Lead Spacing: 0.138" (3.50 mm)
Physical Dimensions: 0.315" Dia (8.00 mm) can diameter

Acceptable Parameter Variations:

Operating Temperature Range: may be wider (e.g., -40°C minimum acceptable)
Lifetime @ 105°C: may be equal or greater (e.g., 2000 Hrs or 3000 Hrs)
ESR: lower values are acceptable
Ripple Current: equal or greater values acceptable
Height: must not exceed mounting space constraints; substitute heights of 11.00 mm or 11.50 mm are compatible

Parameter Comparison

Parameter	SH3R3M200ST (Main)	SEK3R3M250ST (Upgrade)	UPW2D3R3MPD (Upgrade)	335CKE250M (Similar)
Manufacturer	Cornell Dubilier Electronics	Cornell Dubilier Electronics	Nichicon	Cornell Dubilier / Illinois Capacitor
Capacitance	3.3 µF	3.3 µF	3.3 µF	3.3 µF
Tolerance	±20%	±20%	±20%	±20%
Voltage - Rated	200 V	250 V	200 V	250 V
ESR @ 120 Hz	60.29 Ohm	60.32 Ohm	Not Specified	75.358 Ohm
Lifetime @ 105°C	2000 Hrs	2000 Hrs	3000 Hrs	2000 Hrs
Operating Temperature Range	-25°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-25°C ~ 105°C
Ripple Current @ 120 Hz	36 mA	42 mA	36 mA	44 mA
Lead Spacing	0.138" (3.50 mm)	0.138" (3.50 mm)	0.138" (3.50 mm)	0.138" (3.50 mm)
Size / Dimension	0.315" Dia (8.00 mm)	0.315" Dia (8.00 mm)	0.315" Dia (8.00 mm)	0.315" Dia (8.00 mm)
Height - Seated (Max)	0.453" (11.50 mm)	0.433" (11.00 mm)	0.453" (11.50 mm)	0.512" (13.00 mm)
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Obsolete	Active

Engineering Selection Recommendations

SEK3R3M250ST: This Cornell Dubilier component offers a direct upgrade path with increased voltage rating (250 V vs. 200 V), wider operating temperature range (-40°C vs. -25°C minimum), and active product status. All physical dimensions and electrical parameters are compatible. The reduced height (11.00 mm vs. 11.50 mm) provides additional mounting clearance. ROHS3 compliance is maintained.

UPW2D3R3MPD: The Nichicon UPW series provides equivalent electrical and mechanical specifications with extended lifetime (3000 Hrs @ 105°C vs. 2000 Hrs). Physical footprint is identical, and ROHS3 compliance is verified. However, product status is obsolete, limiting long-term availability.

335CKE250M: This Illinois Capacitor component (Cornell Dubilier / Illinois Capacitor partnership) provides the same capacitance and tolerance with 250 V voltage rating. The increased height (13.00 mm) may require board layout verification. Higher ESR (75.358 Ohm) and superior ripple current handling (44 mA @ 120 Hz) are noted. Active product status and ROHS3 compliance support procurement continuity.

Frequently Asked Questions (FAQ)

Q: Can the SEK3R3M250ST replace the SH3R3M200ST in my circuit?

A: Yes. The SEK3R3M250ST is a direct replacement. It maintains identical capacitance (3.3 µF) and tolerance (±20%), with superior voltage rating (250 V). Physical lead spacing (0.138") and can diameter (8.00 mm) are identical. The reduced height (11.00 mm vs. 11.50 mm) improves mounting compatibility. All RoHS certifications are maintained.

Q: What is the difference between the upgrade and similar substitute options?

A: Upgrade parts (SEK3R3M250ST and UPW2D3R3MPD) maintain identical physical dimensions and electrical ratings. The similar part (335CKE250M) has a taller physical height (13.00 mm vs. 11.50 mm), requiring verification that board layout accommodates this dimension. All parts meet RoHS3 compliance.

Q: Is the UPW2D3R3MPD a better choice due to its 3000-hour lifetime rating?

A: The UPW2D3R3MPD provides extended lifetime (3000 Hrs @ 105°C vs. 2000 Hrs). However, both components are obsolete products. For new designs or long-term procurement, the SEK3R3M250ST (active status) or 335CKE250M (active status) are preferable choices.

Q: Can I use the 335CKE250M if my board height is constrained?

A: The 335CKE250M has a maximum seated height of 13.00 mm, compared to 11.50 mm for the SH3R3M200ST. Board layout verification is required to confirm clearance before substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute components (SEK3R3M250ST, UPW2D3R3MPD, and 335CKE250M) are ROHS3 compliant, maintaining regulatory compatibility with the original part.

Q: What is the significance of the voltage rating increase in the substitute parts?

A: SEK3R3M250ST and 335CKE250M both feature 250 V ratings compared to the 200 V original specification. Higher voltage rating provides additional design margin and reliability in circuits with voltage transients or ripple conditions. This does not affect capacitance or tolerance specifications.

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