SH470M100ST Equivalent & Substitute Parts

Part Overview

The SH470M100ST is a 47 µF, 100 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete and is no longer in active production. The SH series has been superseded by newer product lines with improved performance characteristics and extended operational lifetimes. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and leverage performance enhancements offered by active product alternatives.

Key Parameters

Parameter	Value	Unit
Capacitance	47	µF
Voltage Rating	100	V
Tolerance	±20%	—
ESR @ 120 Hz	2.82	Ohm
Lifetime @ 105°C	2000	Hrs
Operating Temperature Range	-40°C to 105°C	—
Lead Spacing	0.197" (5.00 mm)	—
Case Diameter	0.394" (10.00 mm)	—
Mounting Type	Through Hole Radial	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SH470M100ST is determined by strict equivalence across the following electrical and mechanical parameters:

Mandatory Equivalence Criteria:

Capacitance: 47 µF (exact match required)
Voltage Rating: 100 V (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Case Diameter: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole Radial (exact match required)
Polarization: Polar (exact match required)

Performance Parameters (Allowable Variation):

ESR: Substitute parts may have different ESR values; lower ESR indicates improved performance
Lifetime @ 105°C: Substitute parts may have extended lifetimes; longer lifetime indicates improved reliability
Operating Temperature Range: Substitute parts may have extended lower temperature limits
Ripple Current Ratings: Substitute parts may have higher ripple current capacity

All substitute parts listed meet the mandatory equivalence criteria and are suitable for direct replacement in applications where the SH470M100ST was originally specified. Substitute parts with extended lifetimes and improved electrical characteristics provide enhanced performance without requiring circuit redesign.

Parameter Comparison

Parameter	SH470M100ST	SEK470M100ST	476CKE100M	EEU-FS2A470	ESL476M100AH9AA	UHE2A470MPD	UPW2A470MPD
Manufacturer	CDE	CDE	CDE / Illinois Capacitor	Panasonic	KEMET	Nichicon	Nichicon
Series	SH	SEK	CKE	FS-A	ESL	UHE	UPW
Product Status	Obsolete	Active	Active	Active	Active	Not For New Designs	Not For New Designs
Capacitance	47 µF	47 µF	47 µF	47 µF	47 µF	47 µF	47 µF
Voltage Rating	100 V	100 V	100 V	100 V	100 V	100 V	100 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%	±20%
Lead Spacing	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Height - Seated (Max)	0.630" (16.00 mm)	0.630" (16.00 mm)	0.551" (14.00 mm)	0.551" (14.00 mm)	0.551" (14.00 mm)	0.492" (12.50 mm)	0.630" (16.00 mm)
Operating Temperature	-40°C to 105°C	-55°C to 105°C	-40°C to 105°C	-40°C to 105°C	-40°C to 105°C	-40°C to 105°C	-55°C to 105°C
Lifetime @ 105°C	2000 Hrs	2000 Hrs	2000 Hrs	6000 Hrs	10000 Hrs	7000 Hrs	5000 Hrs
ESR @ 120 Hz	2.82 Ohm	2.82 Ohm	2.822 Ohm	—	—	—	—
Ripple Current @ 120 Hz	210 mA	—	280 mA	420 mA	255 mA	227.5 mA	126 mA
Ripple Current @ 100 kHz	294 mA	—	644 mA	600 mA	510 mA	325 mA	420 mA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole

Engineering Selection Recommendations

Primary Recommendation: SEK470M100ST

The SEK470M100ST is the direct upgrade from the obsolete SH470M100ST, both manufactured by Cornell Dubilier Electronics. This part maintains identical electrical specifications (47 µF, 100 V, ±20%, 2.82 Ohm ESR) and mechanical dimensions while offering an extended operating temperature range (-55°C to 105°C versus -40°C to 105°C). The SEK series is in active production status, ensuring long-term supply availability. This part is the preferred choice for direct replacement in existing designs.

Secondary Recommendation: 476CKE100M

The 476CKE100M, manufactured by Cornell Dubilier / Illinois Capacitor, is an active product with identical core specifications. It features improved ripple current capacity (280 mA @ 120 Hz and 644 mA @ 100 kHz) compared to the original part. The case height is reduced to 0.551" (14.00 mm) from 0.630" (16.00 mm), which may provide space savings in compact designs. This part is suitable for applications requiring higher ripple current handling.

Alternative Recommendations for Extended Lifetime Applications:

ESL476M100AH9AA (KEMET): Offers the longest operational lifetime at 10,000 hours @ 105°C, making it suitable for mission-critical applications requiring maximum reliability. Active product status ensures supply continuity.
EEU-FS2A470 (Panasonic): Provides 6,000 hours lifetime @ 105°C with high ripple current capacity (420 mA @ 120 Hz, 600 mA @ 100 kHz). Active product status supports long-term availability.
UHE2A470MPD (Nichicon): Offers 7,000 hours lifetime @ 105°C with compact case height (0.492" / 12.50 mm). Product status is "Not For New Designs," limiting suitability for new development.
UPW2A470MPD (Nichicon): Provides 5,000 hours lifetime @ 105°C with extended operating temperature range (-55°C to 105°C). Product status is "Not For New Designs," limiting suitability for new development.

All substitute parts are ROHS3 compliant and maintain through-hole radial mounting compatibility with the original SH470M100ST.

Frequently Asked Questions (FAQ)

Q: Can the SEK470M100ST be used as a direct replacement for the SH470M100ST?

A: Yes. The SEK470M100ST is electrically and mechanically equivalent to the SH470M100ST. Both parts share identical capacitance (47 µF), voltage rating (100 V), tolerance (±20%), lead spacing (5.00 mm), case diameter (10.00 mm), and ESR (2.82 Ohm @ 120 Hz). The SEK series is the active product line successor to the obsolete SH series. The SEK470M100ST offers an extended operating temperature range (-55°C to 105°C) and is in active production.

Q: What is the difference between the substitute parts in terms of lifetime?

A: Lifetime ratings at 105°C vary significantly across substitute parts. The SH470M100ST and SEK470M100ST are rated for 2,000 hours. The ESL476M100AH9AA offers the longest lifetime at 10,000 hours, followed by UHE2A470MPD at 7,000 hours, EEU-FS2A470 at 6,000 hours, and UPW2A470MPD at 5,000 hours. Extended lifetime ratings indicate improved reliability for long-term operation in high-temperature environments.

Q: Are all substitute parts physically compatible with the original PCB layout?

A: All substitute parts maintain the same lead spacing (0.197" / 5.00 mm) and case diameter (0.394" / 10.00 mm), ensuring PCB footprint compatibility. However, case heights vary: the SH470M100ST and SEK470M100ST are 0.630" (16.00 mm), while 476CKE100M, EEU-FS2A470, and ESL476M100AH9AA are 0.551" (14.00 mm), and UHE2A470MPD is 0.492" (12.50 mm). Shorter case heights may provide space savings but do not affect electrical compatibility.

Q: Which substitute part should be selected for new product designs?

A: For new designs, select from parts with "Active" product status: SEK470M100ST, 476CKE100M, EEU-FS2A470, or ESL476M100AH9AA. The SEK470M100ST is recommended as the primary choice due to its direct lineage from the SH series and identical electrical specifications. Parts marked "Not For New Designs" (UHE2A470MPD and UPW2A470MPD) should be reserved for legacy design maintenance only.

Q: What is the significance of ESR (Equivalent Series Resistance) in capacitor substitution?

A: ESR affects capacitor performance in ripple current applications and high-frequency circuits. The SH470M100ST, SEK470M100ST, and 476CKE100M have specified ESR values (2.82 to 2.822 Ohm @ 120 Hz), indicating similar performance in low-frequency ripple applications. Other substitute parts do not specify ESR but provide impedance or ripple current ratings. Lower ESR generally indicates better high-frequency performance and reduced heat generation under ripple current stress.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, meeting environmental and hazardous substance restrictions. This ensures compatibility with modern manufacturing standards and regulatory requirements.

Q: What is the difference between ripple current ratings at 120 Hz versus 100 kHz?

A: Ripple current ratings specify the maximum AC current the capacitor can handle at specific frequencies without exceeding temperature limits. Low-frequency ripple (120 Hz) is typical in power supply applications, while high-frequency ripple (100 kHz) occurs in switching power supplies and high-frequency circuits. The SH470M100ST handles 210 mA @ 120 Hz and 294 mA @ 10 kHz. Substitute parts with higher ripple current ratings provide greater design margin in demanding applications.

Q: Can substitute parts with different operating temperature ranges be used interchangeably?

A: Operating temperature range differences do not prevent substitution if the application operates within the overlapping range. The SH470M100ST operates from -40°C to 105°C. The SEK470M100ST and UPW2A470MPD extend the lower limit to -55°C, providing additional margin for cold-temperature environments. All parts support the full 105°C upper limit. Selection should be based on actual application temperature requirements.

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