SXR471M035AT Equivalent & Substitute Parts Reference

Part Overview

The SXR471M035AT is a 470 µF, 35 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing production and maintenance applications. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 4000 hours at 105°C, suitable for general-purpose applications requiring stable capacitance and low equivalent series resistance.

Key Parameters

Parameter	Value
Capacitance	470 µF
Voltage Rating	35 V
Tolerance	±20%
ESR @ 100 kHz	340 mOhm
Lifetime @ 105°C	4000 Hrs
Operating Temperature Range	-40°C to 105°C
Ripple Current @ 120 Hz	575 mA
Ripple Current @ 100 kHz	1.15 A
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)
Height (Seated Max)	1.181" (30.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can
Polarization	Polar
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SXR471M035AT are qualified based on strict electrical and mechanical compatibility criteria. All substitute candidates must satisfy the following mandatory parameters:

Electrical Compatibility Requirements:

Capacitance: 470 µF (exact match)
Voltage Rating: 35 V (exact match)
Tolerance: ±20% (exact match)
Operating Temperature Range: -40°C to 105°C (exact match)
Polarization: Polar (exact match)

Mechanical Compatibility Requirements:

Lead Spacing: 0.197" (5.00 mm) (exact match)
Case Diameter: 0.394" (10.00 mm) (exact match)
Mounting Type: Through Hole (exact match)
Package Type: Radial, Can (exact match)

Compliance Requirements:

RoHS3 Compliant (mandatory)
HTSUS Code: 8532.22.0020 (classification match)

Substitute parts are grouped into two categories: Direct Substitutes (meeting all electrical and mechanical parameters with active or available product status) and Functional Equivalents (meeting all core parameters with extended lifetime or improved performance characteristics).

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	ESR / Impedance	Height (Max)	Product Status	Packaging
SXR471M035AT	Cornell Dubilier	470 µF	35 V	±20%	4000 Hrs	340 mOhm	1.181" (30.00 mm)	Obsolete	Radial, Can
35YXG470MEFCT810X20	Rubycon	470 µF	35 V	±20%	5000 Hrs	46 mOhms	0.866" (22.00 mm)	Not For New Designs	Radial, Can
35YXJ470MT810X16	Rubycon	470 µF	35 V	±20%	10000 Hrs	62 mOhms	0.689" (17.50 mm)	Active	Radial, Can
35ZLH470MEFCT810X16	Rubycon	470 µF	35 V	±20%	10000 Hrs	28 mOhms	0.689" (17.50 mm)	Active	Radial, Can
EKZE350EC3471MJ20S	Chemi-Con	470 µF	35 V	±20%	4000 Hrs	23 mOhms	0.846" (21.50 mm)	Active	Radial, Can
EKZE350EMC471MJ20S	Chemi-Con	470 µF	35 V	±20%	4000 Hrs	23 mOhms	0.846" (21.50 mm)	Active	Radial, Can
EKZE350ETD471MJ20S	Chemi-Con	470 µF	35 V	±20%	4000 Hrs	23 mOhms	0.846" (21.50 mm)	Active	Radial, Can
EKZM350ETD471MJ16S	Chemi-Con	470 µF	35 V	±20%	10000 Hrs	28 mOhms	0.689" (17.50 mm)	Active	Radial, Can
UHV1V471MPD1TD	Nichicon	470 µF	35 V	±20%	6000 Hrs	30 mOhms	0.689" (17.50 mm)	Not For New Designs	Radial, Can
35ZLH470MEFC10X16	Rubycon	470 µF	35 V	±20%	10000 Hrs	28 mOhms	0.689" (17.50 mm)	Active	Radial, Can

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

The following parts are recommended as primary substitutes for the obsolete SXR471M035AT, based on active product status and full compliance with RoHS3 requirements:

EKZE350ETD471MJ20S (Chemi-Con, KZE Series) – Matched lifetime specification of 4000 hours at 105°C with superior impedance performance (23 mOhms). Active product status with Cut Tape packaging. Height of 0.846" accommodates applications with moderate vertical space constraints.
EKZM350ETD471MJ16S (Chemi-Con, KZM Series) – Extended lifetime of 10000 hours at 105°C with equivalent impedance (28 mOhms) to the original part. Compact height of 0.689" suitable for space-constrained PCB layouts. Active product status.
35YXJ470MT810X16 (Rubycon, YXJ Series) – Extended lifetime of 10000 hours at 105°C. Compact form factor with 0.689" height. Active product status with high inventory availability (1701 pcs).
35ZLH470MEFC10X16 (Rubycon, ZLH Series) – Extended lifetime of 10000 hours at 105°C with lowest impedance (28 mOhms) among active substitutes. Bulk packaging with highest inventory availability (194803 pcs). Compact height of 0.689".

Secondary Substitutes (Not For New Designs):

Parts classified as "Not For New Designs" are suitable for legacy system maintenance and repair only:

35YXG470MEFCT810X20 (Rubycon, YXG Series) – 5000-hour lifetime with improved impedance (46 mOhms). Not recommended for new product development.
UHV1V471MPD1TD (Nichicon, UHV Series) – 6000-hour lifetime with 30 mOhms impedance. REACH Affected status requires compliance verification.

Height Compatibility Consideration:

The original SXR471M035AT has a maximum seated height of 1.181" (30.00 mm). All substitute parts feature reduced heights ranging from 0.689" to 0.846", enabling direct PCB mounting without modification. Verify clearance in applications with height-sensitive component placement.

Frequently Asked Questions (FAQ)

Q1: Can I use a substitute part with extended lifetime (10000 hours) in place of the original 4000-hour specification?

A: Yes. Extended lifetime specifications represent improved performance characteristics and do not create incompatibility. Parts with 10000-hour ratings at 105°C are direct functional upgrades for applications originally designed with 4000-hour components, provided all other electrical and mechanical parameters match exactly.

Q2: What is the significance of impedance differences among substitute parts?

A: Impedance (or ESR) values affect ripple current handling and thermal performance. Lower impedance values (23–28 mOhms in substitutes versus 340 mOhms in the original) indicate superior high-frequency performance. Substitutes with lower impedance provide better ripple current capacity and reduced heat generation, beneficial for high-frequency switching applications.

Q3: Are parts marked "Not For New Designs" unsuitable for all applications?

A: Parts with "Not For New Designs" status are restricted from incorporation into new product development but remain valid for maintenance, repair, and legacy system support. Use these parts only for direct replacement in existing equipment where the original part number is specified.

Q4: How do packaging differences (Cut Tape, Tape & Box, Bulk) affect part selection?

A: Packaging differences do not affect electrical or mechanical compatibility. Cut Tape (CT) packaging is standard for automated assembly lines. Tape & Box (TB) packaging provides organized quantities suitable for manual assembly or smaller production runs. Bulk packaging offers maximum inventory availability for high-volume applications. Select packaging based on procurement and assembly process requirements.

Q5: Why do substitute parts have reduced heights compared to the original?

A: Modern capacitor designs achieve equivalent electrical performance in more compact form factors through improved internal construction and materials. Reduced heights (0.689"–0.846" versus 1.181") provide design flexibility for space-constrained PCB layouts while maintaining full electrical compatibility.

Q6: Is RoHS3 compliance mandatory for all substitutes?

A: Yes. All qualified substitute parts listed carry RoHS3 Compliant certification, meeting current environmental and regulatory requirements. This compliance is non-negotiable for applications subject to RoHS directives.

Q7: Can I mix substitute parts from different manufacturers in the same circuit board?

A: Yes, provided all parts meet identical electrical specifications (470 µF, 35 V, ±20%, -40°C to 105°C) and mechanical requirements (lead spacing, case diameter, mounting type). Mixing manufacturers is acceptable from a technical standpoint; however, verify procurement and quality assurance procedures with your supply chain management.

Q8: What should I verify before finalizing a substitute part selection?

A: Confirm the following: (1) Capacitance, voltage rating, and tolerance match exactly; (2) Operating temperature range covers your application requirements; (3) Physical dimensions fit your PCB layout, particularly height clearance; (4) Product status aligns with your development phase (Active for new designs, Not For New Designs for legacy support); (5) Packaging format matches your assembly process; (6) Compliance certifications (RoHS3, REACH status) meet your regulatory requirements.

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