Equivalent & Substitute Parts for LPW682M1HO45V-W

Part Overview

The LPW682M1HO45V-W is a 6800 µF, 50 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in the LPW series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring high capacitance in a compact form factor. The part is classified as obsolete, making equivalent and substitute components necessary for ongoing system support and new designs. Substitute parts maintain the core electrical specifications (6800 µF capacitance, 50 V rated voltage, ±20% tolerance) while offering improved performance characteristics such as lower ESR, extended lifetime ratings, or enhanced temperature operating ranges.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	6800	µF	Critical - must match exactly
Voltage Rating	50	V	Critical - must match or exceed
Tolerance	±20%	%	Critical - must match
Package Type	Radial, Can - Snap-In	-	Critical - mechanical compatibility
Lead Spacing	0.394" (10.00 mm)	in (mm)	Critical - PCB footprint compatibility
Mounting Type	Through Hole	-	Critical - assembly method
Operating Temperature	-40°C ~ 85°C	°C	Important - thermal environment
ESR @ 120 Hz	73	mOhm	Important - electrical performance
Lifetime @ 85°C	1000	Hrs	Important - reliability
RoHS Status	ROHS3 Compliant	-	Regulatory requirement

Substitute Part Grouping Explanation

Substitute parts are grouped into three categories based on their relationship to the main part LPW682M1HO45V-W:

Direct Substitutes maintain identical electrical and mechanical specifications with improved performance metrics. These parts share the same capacitance (6800 µF), voltage rating (50 V), tolerance (±20%), package type (Radial, Can - Snap-In), lead spacing (10.00 mm), and mounting method (Through Hole). Direct substitutes may feature lower ESR values, extended lifetime ratings at 85°C or higher temperatures, or active product status.

Upgrade Substitutes provide enhanced performance through extended temperature operating ranges or improved reliability characteristics while maintaining core electrical specifications. These parts are suitable when the application environment requires higher temperature tolerance or longer operational life.

Similar Substitutes maintain all critical electrical and mechanical parameters but may differ in physical dimensions (diameter or height) while preserving the same lead spacing and mounting footprint. These parts are suitable when space constraints or thermal management considerations allow for dimensional variation.

Key Parameters Determining Substitutability:

Capacitance: 6800 µF (exact match required)
Voltage Rating: 50 V (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 10.00 mm (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Parameter Comparison

Part Number	Manufacturer	Series	Status	Capacitance (µF)	Voltage (V)	Tolerance (%)	ESR @ 120Hz (mOhm)	Lifetime @ 85°C (Hrs)	Diameter (mm)	Height (mm)	Lead Spacing (mm)
LPW682M1HO45V-W	CDE	LPW	Obsolete	6800	50	±20	73	1000	25.00	45.00	10.00
SLPX682M050C7P3	CDE	SLPX	Active	6800	50	±20	68	3000	25.00	40.00	10.00
SLP682M050C4P3	CDE	SLP0712TE	Active	6800	50	±20	68	3000 @ 105°C	25.00	45.00	10.00
380LQ682M050J022	CDE	380LQ	Active	6800	50	±20	73	2000	25.00	32.00	10.00
SLPX682M050A9P3	CDE	SLPX	Active	6800	50	±20	68	3000	22.00	50.00	10.00
SLPX682M050E5P3	CDE	SLPX	Active	6800	50	±20	68	3000	30.00	35.00	10.00
688LBA050M2CF	CDE / Illinois Capacitor	LBA	Active	6800	50	±20	85.33	2000	25.00	42.00	10.00
688LBB050M2CF	CDE / Illinois Capacitor	LBB	Active	6800	50	±20	48.76	3000	25.00	42.00	10.00
ESMH500VNN682MQ40S	Chemi-Con	SMH	Active	6800	50	±20	49	2000	25.40	42.00	10.00
ESMH500VSN682MQ40S	Chemi-Con	SMH	Active	6800	50	±20	49	2000	25.40	42.00	10.00
LLS1H682MELA	Nichicon	LLS	Active	6800	50	±20	Not specified	3000	25.00	42.00	10.00

Engineering Selection Recommendations

For Direct Replacement with Improved Performance:

SLPX682M050C7P3 (CDE) is the primary direct substitute. This part maintains identical electrical specifications and physical dimensions while reducing ESR from 73 mOhm to 68 mOhm and extending lifetime from 1000 hours to 3000 hours at 85°C. The part is active and ROHS3 compliant with 16,133 units in stock.

688LBB050M2CF (CDE / Illinois Capacitor) offers the lowest ESR at 48.76 mOhm with 3000-hour lifetime at 85°C. Physical dimensions differ slightly (42 mm height versus 45 mm), but lead spacing and diameter remain compatible. This part is suitable when space permits and lower impedance is required.

For Extended Temperature Operation:

SLP682M050C4P3 (CDE) extends the operating temperature range to -40°C ~ 105°C with 3000-hour lifetime at 105°C. This upgrade substitute maintains the original 45 mm height and 25 mm diameter, making it a direct mechanical replacement with enhanced thermal capability.

For Space-Constrained Applications:

380LQ682M050J022 (CDE) reduces height to 32 mm while maintaining all electrical specifications and lead spacing. ESR remains at 73 mOhm with 2000-hour lifetime at 85°C. This part is suitable for applications with vertical space limitations.

For Alternative Manufacturers:

ESMH500VNN682MQ40S and ESMH500VSN682MQ40S (Chemi-Con) provide equivalent performance with 49 mOhm ESR and 2000-hour lifetime at 85°C. Diameter is 25.40 mm (0.04 mm larger than standard), which remains within typical PCB tolerance. Both parts are active and ROHS3 compliant.

LLS1H682MELA (Nichicon) offers 3000-hour lifetime at 85°C with active product status. ESR is not specified in available data. This part is suitable when manufacturer diversity is required.

Compliance and Regulatory Status:

All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original part. All parts carry EAR99 ECCN classification and 8532.22.0040 HTSUS code.

Frequently Asked Questions (FAQ)

Q: Can SLPX682M050A9P3 be used as a direct replacement for LPW682M1HO45V-W?

A: SLPX682M050A9P3 maintains all critical electrical specifications (6800 µF, 50 V, ±20%, 10 mm lead spacing) and mounting type. However, the physical dimensions differ: diameter is 22 mm (versus 25 mm) and height is 50 mm (versus 45 mm). This part is suitable only if the PCB layout accommodates the larger height and smaller diameter. Verify mechanical clearance before selection.

Q: What is the advantage of SLP682M050C4P3 over SLPX682M050C7P3?

A: Both parts share identical ESR (68 mOhm) and lifetime (3000 hours). The key difference is operating temperature range: SLP682M050C4P3 extends to 105°C versus 85°C for SLPX682M050C7P3. Select SLP682M050C4P3 for applications requiring higher temperature tolerance or thermal margin. Physical dimensions are identical (25 mm diameter, 45 mm height).

Q: Why does LLS1H682MELA not specify ESR?

A: ESR data is not provided in the available technical documentation for LLS1H682MELA. This part is suitable for applications where ESR specification is not critical or where the manufacturer's datasheet provides this information. Contact the supplier for complete electrical characterization if ESR is a design requirement.

Q: Are Chemi-Con ESMH500VNN682MQ40S and ESMH500VSN682MQ40S interchangeable?

A: Yes. Both parts are identical in electrical specifications (6800 µF, 50 V, 49 mOhm ESR, 2000-hour lifetime at 85°C) and physical dimensions (25.40 mm diameter, 42 mm height, 10 mm lead spacing). The difference in part number suffix (NN versus SN) reflects internal manufacturing variations that do not affect performance or compatibility.

Q: Can 688LBA050M2CF replace LPW682M1HO45V-W in high-ripple-current applications?

A: 688LBA050M2CF has higher ESR (85.33 mOhm versus 73 mOhm) and lower ripple current rating (4.8375 A @ 10 kHz versus 4.044 A @ 100 kHz for the original part). This part is not recommended for applications requiring low impedance or high ripple current handling. Use 688LBB050M2CF (48.76 mOhm ESR) or SLPX682M050C7P3 (68 mOhm ESR) for improved ripple current performance.

Q: What is the impact of height variation among substitute parts?

A: Height variations (32 mm to 50 mm) affect vertical PCB clearance and thermal management. Shorter parts (380LQ682M050J022 at 32 mm) are suitable for space-constrained designs. Taller parts (SLPX682M050A9P3 at 50 mm) may improve heat dissipation but require greater vertical clearance. Verify mechanical fit and thermal requirements before selection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the regulatory status of LPW682M1HO45V-W. All parts are also REACH unaffected and carry EAR99 ECCN classification.

Q: Which substitute offers the best overall performance improvement?

A: SLPX682M050C7P3 provides the optimal balance of performance improvement and mechanical compatibility. This part reduces ESR from 73 mOhm to 68 mOhm, extends lifetime from 1000 hours to 3000 hours at 85°C, maintains identical physical dimensions (25 mm diameter, 10 mm lead spacing), and is active with high inventory availability (16,133 units).

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