ESMG250ELL682MMP1S Equivalent & Substitute Parts

Part Overview

The ESMG250ELL682MMP1S is a 6800 µF, 25 V aluminum electrolytic capacitor manufactured by Chemi-Con in the SMG series. This radial, through-hole component is rated for 2000 hours at 85°C and is designed for general-purpose applications. The part is currently active in production with 841 pieces in stock.

Equivalent and substitute parts are identified when design requirements allow for alternative manufacturers or when enhanced performance specifications are acceptable for the application. Substitutes are categorized as direct equivalents (matching all critical parameters), upgrades (higher voltage or temperature ratings), or similar alternatives (comparable performance with minor specification variations).

Key Parameters

Parameter	Value	Unit
Capacitance	6800	µF
Voltage - Rated	25	V
Tolerance	±20%	—
Lifetime @ Temperature	2000 Hrs @ 85°C	—
Operating Temperature Range	-40°C ~ 85°C	—
Lead Spacing	0.295" (7.50 mm)	—
Size / Dimension	0.709" Dia (18.00 mm)	—
Height - Seated (Max)	1.457" (37.00 mm)	—
Mounting Type	Through Hole	—
Package / Case	Radial, Can	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the ESMG250ELL682MMP1S are classified into three categories based on electrical and mechanical compatibility:

Direct Equivalents match the primary electrical specifications: 6800 µF capacitance, 25 V rated voltage, ±20% tolerance, and through-hole radial mounting. These parts maintain identical lead spacing (7.50 mm) and case diameter (18.00 mm), ensuring mechanical interchangeability. Direct equivalents may vary in lifetime rating (2000 Hrs @ 85°C or 2000 Hrs @ 105°C) and operating temperature range, but these variations remain within acceptable substitution parameters.

Upgrade Parts feature higher voltage ratings (35 V instead of 25 V) while maintaining the same 6800 µF capacitance and ±20% tolerance. These parts are suitable for applications where increased voltage margin is beneficial. Upgrades retain identical mechanical dimensions and through-hole mounting configuration.

Similar Parts share the same capacitance, voltage, and tolerance specifications but may exhibit minor variations in ripple current performance or height dimensions within acceptable tolerances. These parts are functionally equivalent for general-purpose applications.

All substitute relationships are based on the following key parameters:

Capacitance: 6800 µF (exact match required)
Voltage Rating: 25 V (direct equivalents) or 35 V (upgrades)
Tolerance: ±20% (exact match required)
Mounting Type: Through Hole (exact match required)
Lead Spacing: 0.295" / 7.50 mm (exact match required)
Case Diameter: 0.709" / 18.00 mm (exact match required)
Polarization: Polar (exact match required)

Parameter Comparison

Parameter	ESMG250ELL682MMP1S (Chemi-Con)	ECA-1EHG682 (Panasonic)	UVR1E682MHD (Nichicon)	35PX6800MEFC18X35.5 (Rubycon)	EEU-HD1V682 (Panasonic)	ECA-1EM682 (Panasonic)
Capacitance	6800 µF	6800 µF	6800 µF	6800 µF	6800 µF	6800 µF
Voltage - Rated	25 V	25 V	25 V	35 V	35 V	25 V
Tolerance	±20%	±20%	±20%	±20%	±20%	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C	2000 Hrs @ 105°C	2000 Hrs @ 85°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 85°C
Operating Temperature	-40°C ~ 85°C	-55°C ~ 105°C	-40°C ~ 85°C	-55°C ~ 105°C	-55°C ~ 105°C	-40°C ~ 85°C
Lead Spacing	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)	0.295" (7.50 mm)
Size / Dimension	0.709" Dia (18.00 mm)	0.709" Dia (18.00 mm)	0.709" Dia (18.00 mm)	0.709" Dia (18.00 mm)	0.709" Dia (18.00 mm)	0.709" Dia (18.00 mm)
Height - Seated (Max)	1.457" (37.00 mm)	1.476" (37.50 mm)	1.476" (37.50 mm)	1.476" (37.50 mm)	1.476" (37.50 mm)	1.476" (37.50 mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Not For New Designs	Active	Active	Active

Engineering Selection Recommendations

Direct Equivalent Selection (25 V Rated Voltage)

ECA-1EHG682 (Panasonic NHG-A series) is a direct electrical equivalent with identical 6800 µF, 25 V specifications. This part is active in production with 3755 units in stock. The extended operating temperature range (-55°C ~ 105°C) and higher temperature lifetime rating (2000 Hrs @ 105°C) provide enhanced thermal performance compared to the original part. Mechanical dimensions are compatible with a maximum height of 1.476 inches (37.50 mm), which is 0.019 inches taller than the original specification but remains within typical PCB layout tolerances.

ECA-1EM682 (Panasonic M-A series) is an active direct equivalent with matching electrical specifications and identical operating temperature range (-40°C ~ 85°C) to the original part. This part is suitable for applications with identical thermal requirements. Stock availability is 1218 units.

UVR1E682MHD (Nichicon UVR series) is a direct electrical equivalent with 2000 Hrs @ 85°C lifetime rating and -40°C ~ 85°C operating range matching the original part. This part carries a "Not For New Designs" product status and should be used only for legacy system maintenance or replacement applications. Stock availability is 1459 units.

Upgrade Selection (35 V Rated Voltage)

35PX6800MEFC18X35.5 (Rubycon PX series) is an upgrade part with 35 V rated voltage, providing increased voltage margin over the 25 V original specification. This part is active in production with the highest stock availability (62241 units) and features extended operating temperature range (-55°C ~ 105°C) with 2000 Hrs @ 105°C lifetime rating. Mechanical compatibility is maintained with identical lead spacing and case diameter.

EEU-HD1V682 (Panasonic HD series) is an upgrade part with 35 V rated voltage and extended thermal performance (2000 Hrs @ 105°C, -55°C ~ 105°C operating range). This part is active in production with 3634 units in stock. Moisture Sensitivity Level is rated as 1 (Unlimited), indicating no moisture sensitivity constraints.

Compliance and Certification

All substitute parts are ROHS3 compliant and carry EAR99 ECCN classification, matching the regulatory status of the original part. All parts are classified under HTSUS code 8532.22.0020. REACH status is "REACH Unaffected" for all parts.

Frequently Asked Questions (FAQ)

Q: Can ECA-1EHG682 be used as a direct replacement for ESMG250ELL682MMP1S?

A: Yes. ECA-1EHG682 is a direct electrical equivalent with matching 6800 µF capacitance, 25 V voltage rating, and ±20% tolerance. Both parts feature identical lead spacing (7.50 mm) and case diameter (18.00 mm), ensuring mechanical interchangeability on the PCB. The maximum seated height of ECA-1EHG682 is 1.476 inches (37.50 mm) compared to 1.457 inches (37.00 mm) for the original part; this 0.019-inch difference is within standard PCB layout tolerances and does not affect functionality.

Q: What is the difference between direct equivalents and upgrade parts?

A: Direct equivalents (ECA-1EHG682, UVR1E682MHD, ECA-1EM682) maintain the same 25 V voltage rating as the original ESMG250ELL682MMP1S. Upgrade parts (35PX6800MEFC18X35.5, EEU-HD1V682) feature a higher 35 V voltage rating while maintaining the same 6800 µF capacitance. Upgrades are suitable for applications where increased voltage margin is beneficial or where thermal performance improvements are required.

Q: Why is UVR1E682MHD marked "Not For New Designs"?

A: UVR1E682MHD carries a "Not For New Designs" product status, indicating that Nichicon has discontinued this part for new applications. This part should be used only for replacement or maintenance of existing systems. For new designs, select from active parts: ECA-1EHG682, ECA-1EM682, 35PX6800MEFC18X35.5, or EEU-HD1V682.

Q: Are all substitute parts through-hole radial components?

A: Yes. All substitute parts listed are through-hole radial, can-style aluminum electrolytic capacitors with identical lead spacing (7.50 mm) and case diameter (18.00 mm). All parts are suitable for PCB mounting in the same footprint as the original ESMG250ELL682MMP1S.

Q: What is the significance of the extended operating temperature range in substitute parts?

A: Several substitute parts feature extended operating temperature ranges (-55°C ~ 105°C) compared to the original part (-40°C ~ 85°C). Extended temperature ranges allow operation in more demanding thermal environments. However, the original specification (-40°C ~ 85°C) is maintained in direct equivalents ECA-1EM682 and UVR1E682MHD, which are suitable for applications with identical thermal requirements.

Q: Can 35 V rated parts be used in circuits designed for 25 V capacitors?

A: Yes. A 35 V rated capacitor can be used in a circuit designed for a 25 V capacitor. The higher voltage rating provides increased safety margin and does not affect circuit operation. The 6800 µF capacitance and ±20% tolerance remain identical, ensuring electrical compatibility.

Q: What is the difference in ripple current ratings between substitute parts?

A: Ripple current ratings vary among substitute parts due to different internal resistance characteristics and thermal designs. The original ESMG250ELL682MMP1S specifies 2.88 A @ 120 Hz and 3.1104 A @ 100 kHz. Substitute parts range from 1.75 A to 2.9 A @ 120 Hz and 2.208 A to 3.335 A at high frequencies. For applications with specific ripple current requirements, verify that the selected substitute part meets or exceeds the circuit's ripple current specification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, matching the regulatory compliance of the original ESMG250ELL682MMP1S. All parts carry EAR99 ECCN classification and are classified under HTSUS code 8532.22.0020.

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