Equivalent & Substitute Parts for SS4R7M035ST

Part Overview

The SS4R7M035ST is a 4.7 µF, 35 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, indicating that direct procurement from the original manufacturer is no longer available. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 1000 hours at 85°C, making it suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Identifying equivalent and substitute parts is necessary due to the obsolete status of the SS4R7M035ST. Active alternatives from established manufacturers such as Panasonic Electronic Components provide continued availability while maintaining electrical and mechanical compatibility with existing designs.

Key Parameters

Parameter	Value	Unit
Capacitance	4.7	µF
Voltage - Rated	35	V
Tolerance	±20%	-
ESR @ 120 Hz	33.88	Ohm
Lifetime @ Temperature	1000	Hrs @ 85°C
Operating Temperature Range	-40 to 85	°C
Lead Spacing	0.059	inches (1.50 mm)
Diameter	0.157	inches (4.00 mm)
Height - Seated (Max)	0.276	inches (7.00 mm)
Mounting Type	Through Hole	-
Package / Case	Radial, Can	-
Polarization	Polar	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the SS4R7M035ST is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Capacitance: 4.7 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 35 V minimum (equal or higher voltage ratings are acceptable)
Polarization: Polar (exact match required)
Package / Case: Radial, Can (exact match required)
Mounting Type: Through Hole (exact match required)
Lead Spacing: 0.059 inches / 1.50 mm (exact match required)
Diameter: 0.157 inches / 4.00 mm (exact match required)

Secondary Compatibility Factors:

Operating Temperature Range: -40°C to 85°C minimum (equal or wider range acceptable)
Lifetime @ Temperature: 1000 Hrs @ 85°C minimum (equal or greater acceptable)
RoHS Compliance: ROHS3 Compliant (required for regulatory alignment)

Substitute parts are grouped into three categories based on their relationship to the main part specifications:

Direct Equivalent: Matches all primary criteria with identical voltage rating (35 V)
Upgrade Equivalent: Matches all primary criteria with higher voltage rating (50 V) and enhanced temperature performance
Parametric Equivalent: Matches all primary criteria with identical voltage rating but different series designation

Parameter Comparison

Parameter	SS4R7M035ST (CDE)	ECE-A1VKS4R7 (Panasonic)	EEA-GA1H4R7 (Panasonic)	ECE-A1HKA4R7 (Panasonic)	ECE-A1VKA4R7 (Panasonic)
Manufacturer	Cornell Dubilier Electronics	Panasonic Electronic Components	Panasonic Electronic Components	Panasonic Electronic Components	Panasonic Electronic Components
Product Status	Obsolete	Active	Active	Active	Active
Capacitance	4.7 µF	4.7 µF	4.7 µF	4.7 µF	4.7 µF
Tolerance	±20%	±20%	±20%	±20%	±20%
Voltage - Rated	35 V	35 V	50 V	50 V	35 V
Lifetime @ Temperature	1000 Hrs @ 85°C	1000 Hrs @ 85°C	1000 Hrs @ 105°C	1000 Hrs @ 85°C	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 105°C	-40°C ~ 85°C	-40°C ~ 85°C
Lead Spacing	0.059" (1.50 mm)	0.059" (1.50 mm)	0.059" (1.50 mm)	0.059" (1.50 mm)	0.059" (1.50 mm)
Diameter	0.157" (4.00 mm)	0.157" (4.00 mm)	0.157" (4.00 mm)	0.157" (4.00 mm)	0.157" (4.00 mm)
Height - Seated (Max)	0.276" (7.00 mm)	0.236" (6.00 mm)	0.276" (7.00 mm)	0.276" (7.00 mm)	0.276" (7.00 mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
Polarization	Polar	Polar	Polar	Polar	Polar
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory Status	1173 Pcs	9612 Pcs	31183 Pcs	57247 Pcs	24430 Pcs

Engineering Selection Recommendations

ECE-A1VKS4R7 (Direct Equivalent)

The ECE-A1VKS4R7 from Panasonic Electronic Components provides direct electrical and mechanical equivalence to the SS4R7M035ST. Both parts share identical capacitance (4.7 µF), voltage rating (35 V), tolerance (±20%), and operating temperature range (-40°C to 85°C). The primary dimensional difference is the seated height: ECE-A1VKS4R7 measures 0.236 inches (6.00 mm) compared to the original 0.276 inches (7.00 mm). This reduced height may provide a design advantage in space-constrained applications while maintaining full electrical compatibility. The part is ROHS3 compliant and carries active product status with substantial inventory availability (9612 pieces).

EEA-GA1H4R7 (Upgrade Equivalent)

The EEA-GA1H4R7 from Panasonic Electronic Components offers enhanced performance specifications while maintaining mechanical compatibility. This part increases the voltage rating from 35 V to 50 V and extends the operating temperature range to -55°C to 105°C with a lifetime rating of 1000 hours at 105°C (compared to 85°C for the original). The higher voltage rating provides additional design margin in applications subject to voltage transients or supply variations. Mechanical dimensions remain compatible with the original design. ROHS3 compliance and active product status are confirmed. This part is suitable for applications requiring improved thermal performance or higher voltage tolerance.

ECE-A1HKA4R7 (Similar Equivalent)

The ECE-A1HKA4R7 from Panasonic Electronic Components matches the mechanical footprint and core electrical specifications of the SS4R7M035ST while providing a 50 V voltage rating. Operating temperature range remains -40°C to 85°C with 1000-hour lifetime at 85°C. This part offers a middle-ground option between direct equivalence and full upgrade performance. ROHS3 compliance and active product status are confirmed with the highest inventory availability (57247 pieces) among all substitutes.

ECE-A1VKA4R7 (Parametric Equivalent)

The ECE-A1VKA4R7 from Panasonic Electronic Components provides parametric equivalence with identical voltage rating (35 V) and operating specifications to the SS4R7M035ST. All mechanical dimensions and electrical characteristics align with the original part. ROHS3 compliance and active product status are confirmed with substantial inventory (24430 pieces). This part represents a direct functional replacement suitable for one-to-one substitution.

All substitute parts are ROHS3 compliant and carry active product status, ensuring long-term availability and regulatory alignment with current environmental standards.

Frequently Asked Questions (FAQ)

Q: Can ECE-A1VKS4R7 be used as a direct replacement for SS4R7M035ST despite the height difference?

A: Yes. The ECE-A1VKS4R7 is mechanically and electrically compatible with the SS4R7M035ST. The seated height difference (0.236 inches versus 0.276 inches) does not affect electrical performance. Verify that the reduced height accommodates your specific PCB layout and clearance requirements.

Q: What is the advantage of selecting EEA-GA1H4R7 over other substitutes?

A: The EEA-GA1H4R7 provides enhanced thermal performance with a 1000-hour lifetime at 105°C (versus 85°C for other options) and extends the operating temperature range to -55°C to 105°C. The 50 V voltage rating offers additional design margin. Select this part for applications requiring improved reliability in elevated temperature environments or where voltage transient protection is beneficial.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (ECE-A1VKS4R7, EEA-GA1H4R7, ECE-A1HKA4R7, and ECE-A1VKA4R7) are ROHS3 compliant, ensuring regulatory alignment with current environmental standards.

Q: What is the difference between ECE-A1HKA4R7 and ECE-A1VKA4R7?

A: Both parts share identical electrical specifications (4.7 µF, ±20%, 35 V, -40°C to 85°C operating range). The primary difference is the series designation (KA versus KA) and inventory availability. ECE-A1HKA4R7 has higher inventory (57247 pieces) compared to ECE-A1VKA4R7 (24430 pieces). Both are suitable for direct substitution.

Q: Can I use a 50 V rated substitute in place of the 35 V original part?

A: Yes. A higher voltage rating (50 V) is acceptable for applications designed for 35 V operation. The higher voltage rating provides additional design margin and does not degrade performance in 35 V circuits. Both ECE-A1HKA4R7 and EEA-GA1H4R7 offer this capability.

Q: What is the lead spacing requirement for these parts?

A: All substitute parts maintain the original lead spacing of 0.059 inches (1.50 mm), ensuring compatibility with existing PCB through-hole patterns. No PCB redesign is required.

Q: Are these parts suitable for high-frequency applications?

A: These aluminum electrolytic capacitors are rated for general-purpose applications. Ripple current specifications vary by part: ECE-A1VKS4R7 supports 37.4 mA @ 100 kHz, while EEA-GA1H4R7 supports 40.3 mA @ 100 kHz. Verify ripple current requirements against your specific application before selection.

Q: What inventory levels are available for each substitute?

A: ECE-A1HKA4R7 has the highest availability (57247 pieces), followed by EEA-GA1H4R7 (31183 pieces), ECE-A1VKA4R7 (24430 pieces), and ECE-A1VKS4R7 (9612 pieces). Inventory levels support production requirements across various scales.

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