SH332M025ST Equivalent & Substitute Parts

Part Overview

The SH332M025ST is a 3300 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as obsolete, with 1154 units currently in stock. The part is designed for general-purpose applications requiring through-hole mounting with radial lead configuration.

Due to the obsolete status of the SH332M025ST, equivalent and substitute parts from active manufacturers are necessary to ensure long-term component availability and supply chain continuity. Active alternatives maintain the same electrical specifications while offering extended product lifecycles and improved availability.

Key Parameters

Parameter	Value	Unit
Capacitance	3300	µF
Tolerance	±20%	—
Voltage - Rated	25	V
ESR (Equivalent Series Resistance)	80	mOhm @ 120Hz
Lifetime @ Temperature	2000	Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C	—
Polarization	Polar	—
Lead Spacing	0.295"	(7.50mm)
Size / Dimension	0.630" Dia	(16.00mm)
Height - Seated (Max)	1.260"	(32.00mm)
Mounting Type	Through Hole	—
Package / Case	Radial, Can	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SH332M025ST is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Capacitance: 3300 µF (exact match required)
Voltage Rating: 25 V (exact match required)
Tolerance: ±20% (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package Type: Radial, Can (exact match required)
Lead Spacing: 0.295" / 7.50mm (exact match required)
Can Diameter: 0.630" / 16.00mm (exact match required)

Acceptable Variation Parameters:

Height - Seated (Max): Substitutes may vary within physical envelope constraints
ESR (Equivalent Series Resistance): Substitutes may have lower ESR values
Lifetime @ Temperature: Substitutes may have extended lifetime ratings (10000 Hrs acceptable for 2000 Hrs requirement)
Operating Temperature Range: Substitutes may have extended lower temperature limits
Ripple Current Ratings: Substitutes may have higher ripple current capacity

Compliance Requirements:

RoHS3 Compliance (mandatory)
ECCN: EAR99 (maintained across all substitutes)
HTSUS: 8532.22.0020 (maintained across all substitutes)

Substitute parts are grouped into two categories: direct equivalents from active manufacturers and upgraded alternatives with enhanced performance characteristics.

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	Tolerance	ESR (mOhm)	Lifetime (Hrs @ 105°C)	Height (Max)	Product Status	Inventory (Pcs)
SH332M025ST	Cornell Dubilier Electronics	3300	25	±20%	80 @ 120Hz	2000	1.260" (32.00mm)	Obsolete	1154
SEK332M025ST	Cornell Dubilier Electronics	3300	25	±20%	80	2000	1.260" (32.00mm)	Active	684
25YXJ3300M16X25	Rubycon	3300	25	±20%	—	10000	1.063" (27.00mm)	Active	1579
25ZLH3300MEFC16X25	Rubycon	3300	25	±20%	—	10000	1.063" (27.00mm)	Active	6550
25ZLH3300MRK16X25	Rubycon	3300	25	±20%	—	10000	1.063" (27.00mm)	Active	744
25ZLJ3300M16X25	Rubycon	3300	25	±20%	—	10000	1.063" (27.00mm)	Active	18604
338CKE025M	Cornell Dubilier / Illinois Capacitor	3300	25	±20%	100.5 @ 120Hz	2000	1.043" (26.50mm)	Active	3277
338CKH025M	Cornell Dubilier / Illinois Capacitor	3300	25	±20%	100.5 @ 120Hz	2000	1.240" (31.50mm)	Active	6261
338KBM025M	Cornell Dubilier / Illinois Capacitor	3300	25	±20%	101 @ 120Hz	10000	1.260" (32.00mm)	Active	914
EEU-FR1E332	Panasonic Electronic Components	3300	25	±20%	—	10000	1.063" (27.00mm)	Active	848
EKYA250ELL332ML25S	Chemi-Con	3300	25	±20%	—	10000	1.043" (26.50mm)	Active	671

Engineering Selection Recommendations

Direct Equivalent (Same Lifetime Rating):

The SEK332M025ST from Cornell Dubilier Electronics is the direct active equivalent to the SH332M025ST. Both parts maintain identical electrical specifications: 3300 µF capacitance, 25 V rating, ±20% tolerance, 80 mOhm ESR, and 2000 hours lifetime at 105°C. The SEK332M025ST is ROHS3 compliant and carries active product status with 684 units in inventory. This part is the primary recommendation for direct replacement in existing designs.

Extended Lifetime Alternatives (10000 Hours @ 105°C):

Multiple active manufacturers offer 3300 µF, 25 V radial aluminum electrolytic capacitors with extended 10000-hour lifetime ratings at 105°C. These parts are suitable for applications requiring enhanced reliability and extended operational life:

25ZLJ3300M16X25 (Rubycon): Highest inventory availability with 18604 units. Maintains identical lead spacing and can diameter. Height reduced to 1.063" (27.00mm).
25ZLH3300MEFC16X25 (Rubycon): 6550 units in stock. Identical mechanical specifications to 25ZLJ3300M16X25.
25ZLH3300MRK16X25 (Rubycon): 744 units available. Same electrical and mechanical specifications as other ZLH variants.
25YXJ3300M16X25 (Rubycon): 1579 units in inventory. YXJ series alternative with extended lifetime.
338KBM025M (Cornell Dubilier / Illinois Capacitor): Maintains original height of 1.260" (32.00mm), matching the SH332M025ST physical envelope. 914 units in stock. ESR of 101 mOhm @ 120Hz.
EEU-FR1E332 (Panasonic Electronic Components): 848 units available. Reduced height to 1.063" (27.00mm).
EKYA250ELL332ML25S (Chemi-Con): 671 units in inventory. Height of 1.043" (26.50mm).

Same Lifetime, Alternative Manufacturers:

338CKE025M (Cornell Dubilier / Illinois Capacitor): 2000-hour lifetime matching the original part. 3277 units in stock. Height 1.043" (26.50mm). ESR 100.5 mOhm @ 120Hz.
338CKH025M (Cornell Dubilier / Illinois Capacitor): 2000-hour lifetime. 6261 units in inventory. Height 1.240" (31.50mm), closely matching original dimensions. ESR 100.5 mOhm @ 120Hz.

All substitute parts maintain ROHS3 compliance, EAR99 ECCN classification, and 8532.22.0020 HTSUS code. Selection should prioritize inventory availability, required lifetime rating, and physical envelope constraints within the target application.

Frequently Asked Questions (FAQ)

Q: Can the SEK332M025ST directly replace the SH332M025ST without design modifications?

A: Yes. The SEK332M025ST is an active equivalent with identical electrical specifications (3300 µF, 25 V, ±20% tolerance, 80 mOhm ESR, 2000 Hrs @ 105°C) and mechanical dimensions (0.295" lead spacing, 0.630" can diameter, 1.260" height). Both parts are ROHS3 compliant and suitable for through-hole mounting in radial configuration.

Q: What is the primary advantage of selecting a 10000-hour lifetime substitute over the 2000-hour equivalent?

A: Extended lifetime ratings (10000 hours @ 105°C) provide enhanced reliability and longer operational life in applications subject to continuous or high-temperature operation. This extended rating does not require design modifications and is backward-compatible with applications originally specified for 2000-hour components.

Q: Are there physical envelope differences between the SH332M025ST and the Rubycon alternatives?

A: Yes. The Rubycon 25YXJ3300M16X25, 25ZLH3300MEFC16X25, 25ZLH3300MRK16X25, and 25ZLJ3300M16X25 series have reduced height of 1.063" (27.00mm) compared to the original 1.260" (32.00mm). Lead spacing and can diameter remain identical. Verify PCB layout clearance before substitution. The 338KBM025M maintains the original 1.260" height.

Q: Do all substitute parts maintain the same ESR specification?

A: No. The original SH332M025ST specifies 80 mOhm ESR @ 120Hz. The SEK332M025ST matches this specification. The 338CKE025M, 338CKH025M, and 338KBM025M have slightly higher ESR values (100.5 to 101 mOhm @ 120Hz). Rubycon and Panasonic alternatives do not specify ESR but provide impedance values ranging from 13 to 21 mOhms. For applications with strict ESR requirements, verify compatibility with the target circuit.

Q: Which substitute offers the highest inventory availability?

A: The 25ZLJ3300M16X25 from Rubycon has the highest inventory with 18604 units in stock. This part offers 10000-hour lifetime, identical electrical specifications, and compatible mechanical dimensions with reduced height.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance, meeting environmental and regulatory requirements equivalent to the original SH332M025ST.

Q: Can I use a substitute with higher ripple current rating in place of the original?

A: Yes. Substitutes with higher ripple current ratings are backward-compatible. The original SH332M025ST specifies 1.45 A @ 120 Hz and 1.74 A @ 10 kHz. Rubycon alternatives provide 2.3 to 2.7 A @ 120 Hz and 2.9 to 3.8 A @ 100 kHz, offering improved performance margin without design modification.

Q: What is the difference between the various Rubycon ZLH and ZLJ series alternatives?

A: The 25ZLH3300MEFC16X25, 25ZLH3300MRK16X25, and 25ZLJ3300M16X25 all meet the core electrical specifications (3300 µF, 25 V, ±20%, 10000 Hrs @ 105°C) and mechanical requirements (0.295" lead spacing, 0.630" can diameter, 1.063" height). Differences exist in impedance values (13 mOhms for ZLH variants, 17 mOhms for ZLJ) and ripple current capacity. Selection should be based on inventory availability and specific circuit impedance requirements.

Q: Is the 338KBM025M suitable for applications requiring extended lifetime?

A: Yes. The 338KBM025M provides 10000-hour lifetime at 105°C while maintaining the original 1.260" (32.00mm) height, making it ideal for space-constrained applications requiring both extended reliability and original physical envelope compatibility.

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