108LBA250M2DH Equivalent & Substitute Parts

Part Overview

The 108LBA250M2DH is a 1000 µF 250 V aluminum electrolytic capacitor in a radial, can snap-in package with through-hole mounting. This general-purpose aluminum electrolytic capacitor is currently active in production and widely stocked. Alternative models are necessary to address specific application requirements including extended operating temperature ranges, improved ESR characteristics, or enhanced lifetime ratings at elevated temperatures.

Substiute Parts

108LBA250M2DH

Cornell Dubilier / Illinois CapacitorIn Stock: 641108LBA250M2DH Datasheet

Current PartRFQ

108LBB250M2DG

Cornell Dubilier / Illinois CapacitorIn Stock: 1276108LBB250M2DG Datasheet

DirectRFQ

381LR102M250K052

Cornell Dubilier Electronics (CDE)In Stock: 11894381LR102M250K052 Datasheet

UpgradeRFQ

381LX102M250K052

Cornell Dubilier Electronics (CDE)In Stock: 1309381LX102M250K052 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 108LBA250M2DH is determined by electrical and mechanical parameter compatibility. All substitute parts maintain identical capacitance (1000 µF), voltage rating (250 V), tolerance (±20%), and mechanical configuration (radial, can snap-in, 10.00 mm lead spacing, 30.00 mm diameter). Substitutes are grouped into two categories:

Direct Substitute: Parts with compatible physical dimensions and thermal ratings suitable for direct socket replacement.

Upgrade Substitutes: Parts with enhanced electrical characteristics including lower ESR, extended lifetime ratings, and higher operating temperature ranges, applicable when application requirements exceed baseline specifications.

The critical parameters determining substitution validity are:

• Capacitance and voltage rating (must match exactly)
• Lead spacing and diameter (must fit existing circuit board layout)
• Height clearance (must fit within mechanical envelope)
• RoHS3 compliance status (environmental regulatory requirement)

Parameter Comparison

Engineering Selection Recommendations

All listed parts maintain active product status and ROHS3 compliance, establishing baseline regulatory conformance for industrial and commercial applications.

108LBA250M2DH (Main Part): Primary choice for general-purpose applications with standard thermal operating conditions and 2000-hour lifetime requirement at 85°C. Suitable for circuits where 250 V and 1000 µF specifications are required without extended temperature or reliability demands.

108LBB250M2DG (Direct Substitute): Direct mechanical and electrical replacement with enhanced lifetime (3000 hours at 85°C) and lower ESR (165.79 mOhm). Height reduction from 52.00 mm to 47.00 mm accommodates space-constrained applications while maintaining all electrical characteristics and lead spacing. Applicable when improved lifetime and reduced heat dissipation are beneficial but elevated temperature operation is not required.

381LR102M250K052 (Upgrade Substitute): Extended operating temperature range (-40°C to 105°C) and 3000-hour lifetime at 105°C with significantly reduced ESR (149 mOhm). Applicable for applications requiring sustained operation at elevated temperatures or demanding higher reliability with lower power dissipation characteristics.

381LX102M250K052 (Upgrade Substitute): Extended operating temperature range (-40°C to 105°C) and 3000-hour lifetime at 105°C. Lowest ripple current specifications among all alternatives. Applicable for temperature-sensitive applications or installations where thermal management presents constraints.

Frequently Asked Questions (FAQ)

Q: Can I use 108LBB250M2DG to replace 108LBA250M2DH? A: Yes, 108LBB250M2DG is a direct substitute. Both parts maintain identical capacitance (1000 µF), voltage rating (250 V), lead spacing (10.00 mm), and diameter (30.00 mm). 108LBB250M2DG offers improved lifetime (3000 hours vs. 2000 hours at 85°C) and lower ESR. The height difference (47.00 mm vs. 52.00 mm) must be verified against circuit board clearance requirements.

Q: What are the differences between 381LR102M250K052 and 381LX102M250K052? A: Both parts extend operating temperature to 105°C with 3000-hour lifetime ratings at that temperature. 381LR102M250K052 specifies ESR of 149 mOhm at 120 Hz, while 381LX102M250K052 does not specify ESR. 381LR102M250K052 supports higher ripple current (4.06 A at 20 kHz vs. 3.1 A at 20 kHz). Selection depends on whether ESR specification and ripple current capacity are critical to circuit performance.

Q: Are all substitute parts mechanically interchangeable? A: Yes, all parts maintain identical lead spacing (10.00 mm) and diameter (30.00 mm) for snap-in mounting. Height differences exist: 108LBB250M2DG measures 47.00 mm compared to 52.00 mm for the other parts. Verify available clearance in the mechanical envelope before substituting 108LBB250M2DG.

Q: Can I use the 381LR or 381LX series in applications currently using 108LBA250M2DH? A: Yes, the 381LR and 381LX series are suitable upgrades. They provide extended temperature operation (-40°C to 105°C) and improved lifetime (3000 hours at 105°C) while maintaining all required electrical characteristics (1000 µF, 250 V, ±20% tolerance, radial snap-in package).

Q: What is the advantage of lower ESR? A: Lower equivalent series resistance reduces heat generation and voltage drop across the capacitor. Parts with lower ESR generate less heat during ripple current operation, beneficial in high-current or high-frequency switching applications where thermal management is important.

Q: Do all parts carry the same compliance certifications? A: Yes, all listed parts are ROHS3 compliant and REACH unaffected, meeting standard environmental and regulatory requirements for industrial and commercial use.