338LBB100M2DF Equivalent & Substitute Parts

Part Overview

The 338LBB100M2DF is a 3300 µF, 100 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring stable capacitance and extended operational life. The part is currently active in production with 1052 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to component availability, inventory constraints, or design flexibility within specified tolerance ranges.

Substiute Parts

338LBB100M2DF

Cornell Dubilier / Illinois CapacitorIn Stock: 1147338LBB100M2DF Datasheet

Current PartRFQ

SLPX332M100E7P3

Cornell Dubilier Electronics (CDE)In Stock: 274160SLPX332M100E7P3 Datasheet

DirectRFQ

380LX332M100K042

Cornell Dubilier Electronics (CDE)In Stock: 2628380LX332M100K042 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 338LBB100M2DF are qualified based on the following criteria:

Core Electrical Parameters (Must Match):

• Capacitance: 3300 µF
• Voltage Rating: 100 V
• Tolerance: ±20%
• Operating Temperature Range: -40°C ~ 85°C
• Lifetime: 3000 Hrs @ 85°C
• Polarization: Polar

Core Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: Radial, Can - Snap-In
• Lead Spacing: 0.394" (10.00mm)
• Size / Dimension: 1.181" Dia (30.00mm)

Allowable Variation Parameters:

• ESR (Equivalent Series Resistance): Variation within component series specifications
• Height - Seated (Max): Variation within snap-in mechanical tolerance
• Ripple Current: Variation within component series specifications

All substitute parts listed maintain identical core electrical and mechanical specifications while permitting variation in secondary performance characteristics within the aluminum electrolytic capacitor product category.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain full compliance with ROHS3 and REACH requirements, matching the regulatory status of the primary part 338LBB100M2DF. Selection among equivalent parts is determined by the following factors:

338LBB100M2DF (Primary Part): Active product status with 1052 units in stock. Lowest ESR at 75.36 mOhm @ 120Hz. Height specification of 1.654" (42.00mm) accommodates standard snap-in mounting applications.

SLPX332M100E7P3 (Direct Manufacturer Substitute): Active product status with 274082 units in stock. ESR of 80 mOhm @ 120Hz provides minimal performance variance. Reduced height of 1.575" (40.00mm) permits installation in space-constrained applications where vertical clearance is limited. Bulk packaging available.

380LX332M100K042 (Parametric Equivalent): Active product status with 2542 units in stock. ESR of 90 mOhm @ 120Hz represents the upper tolerance range for this capacitance and voltage class. Height specification of 1.654" (42.00mm) matches the primary part. Suitable for applications where ESR variation within component series specifications is acceptable.

All three parts are manufactured by Cornell Dubilier Electronics, ensuring consistent quality and reliability across the product line.

Frequently Asked Questions (FAQ)

Q: Can SLPX332M100E7P3 be used as a direct replacement for 338LBB100M2DF?

A: Yes. Both parts share identical electrical specifications (3300 µF, 100 V, ±20% tolerance, 3000 Hrs @ 85°C) and mechanical specifications (through-hole mounting, radial snap-in package, 10.00mm lead spacing, 30.00mm diameter). The SLPX series has a reduced seated height of 1.575" (40.00mm) compared to 1.654" (42.00mm) for the LBB series, which is compatible with standard snap-in mounting applications.

Q: What is the difference in ESR between the substitute parts?

A: The 338LBB100M2DF has an ESR of 75.36 mOhm @ 120Hz. The SLPX332M100E7P3 has an ESR of 80 mOhm @ 120Hz, and the 380LX332M100K042 has an ESR of 90 mOhm @ 120Hz. All values fall within the acceptable range for 3300 µF, 100 V aluminum electrolytic capacitors in this product category.

Q: Are there any height restrictions when selecting a substitute?

A: The 338LBB100M2DF and 380LX332M100K042 both have a maximum seated height of 1.654" (42.00mm). The SLPX332M100E7P3 has a maximum seated height of 1.575" (40.00mm). If your application has a height constraint of 40.00mm or less, only the SLPX series is suitable. For applications with 42.00mm clearance, all three parts are compatible.

Q: Do all substitute parts meet the same regulatory requirements?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 under export control regulations. All share the same HTSUS code (8532.22.0040).

Q: What is the lead spacing for these capacitors?

A: All three parts have a lead spacing of 0.394" (10.00mm), ensuring compatibility with standard through-hole PCB layouts designed for this capacitance and voltage class.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided that the PCB layout accommodates the maximum seated height of the selected part. The 338LBB100M2DF, SLPX332M100E7P3, and 380LX332M100K042 all maintain identical lead spacing, diameter, and mounting type specifications, making them mechanically interchangeable within the height constraints specified for each series.