PEG124RL3150QL1 Equivalent & Substitute Parts

Part Overview

The PEG124RL3150QL1 is a 150 µF, 200 V aluminum electrolytic capacitor in axial, can package configuration manufactured by KEMET. This component is designed for general-purpose applications requiring polar electrolytic capacitance with through-hole mounting. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility within the PEG124 series.

Substiute Parts

PEG124RL3150QL1

KEMETIn Stock: 873PEG124RL3150QL1 Datasheet

Current PartRFQ

PEG124RL3150QE4

KEMETIn Stock: 1874PEG124RL3150QE4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PEG124RL3150QL1 is based on electrical and mechanical parameter equivalence within the KEMET PEG124 series. The substitute part must satisfy the following criteria:

Critical Matching Parameters:

• Capacitance: 150 µF (exact match)
• Voltage Rating: 200 V (exact match)
• ESR @ 100Hz: 690 mOhm (exact match)
• Operating Temperature Range: -40°C ~ 105°C (exact match)
• Ripple Current @ Low Frequency: 446 mA @ 100 Hz (exact match)
• Package / Case: Axial, Can (exact match)
• Physical Dimensions: 0.787" Dia x 1.811" L (exact match)
• Mounting Type: Through Hole (exact match)
• Polarization: Polar (exact match)
• Tolerance: -10%, +30% (exact match)

The PEG124RL3150QE4 meets all critical electrical and mechanical parameters required for direct substitution. The primary difference is the thermal lifetime rating (5000 Hrs @ 105°C versus 22000 Hrs @ 105°C), which does not affect functional compatibility in applications where the original part specifications are met.

Parameter Comparison

Engineering Selection Recommendations

The PEG124RL3150QE4 is the direct substitute for the discontinued PEG124RL3150QL1. Both parts are manufactured by KEMET within the PEG124 series and share identical electrical specifications and physical dimensions. The substitute part is currently in active production status with higher inventory availability (1850 Pcs versus 815 Pcs).

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent applications. The substitute part is supplied in bulk packaging, consistent with standard distribution practices for active components.

The thermal lifetime difference (5000 Hrs @ 105°C for the substitute versus 22000 Hrs @ 105°C for the original) does not affect functional compatibility in applications designed to the original part's electrical specifications. Component selection should be based on application-specific thermal and operational requirements.

Frequently Asked Questions (FAQ)

Q: Can the PEG124RL3150QE4 be used as a direct replacement for the PEG124RL3150QL1?

A: Yes. Both parts share identical capacitance (150 µF), voltage rating (200 V), ESR (690 mOhm @ 100Hz), operating temperature range (-40°C ~ 105°C), ripple current specifications (446 mA @ 100 Hz), physical dimensions (0.787" Dia x 1.811" L), and mounting configuration (through-hole axial, can package). Electrical and mechanical compatibility is complete.

Q: What is the difference between these two parts?

A: The primary difference is the thermal lifetime rating. The PEG124RL3150QL1 is rated for 22000 Hrs @ 105°C, while the PEG124RL3150QE4 is rated for 5000 Hrs @ 105°C. The substitute part also specifies ripple current at high frequency (1.1 A @ 5 kHz), which is not provided for the original part. Product status differs: the original is discontinued at DiGi Electronics, while the substitute is active.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.787" Dia x 1.811" L (20.00mm x 46.00mm) and use the same axial, can package configuration. PCB layout and mounting hole spacing are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the PEG124RL3150QL1 and PEG124RL3150QE4 are ROHS3 compliant and REACH unaffected, satisfying equivalent regulatory requirements.

Q: What packaging is supplied for each part?

A: The original part (PEG124RL3150QL1) is supplied with unspecified packaging. The substitute part (PEG124RL3150QE4) is supplied in bulk packaging.

Q: Can the substitute part handle the same ripple current specifications?

A: Yes. Both parts are rated for 446 mA ripple current @ 100 Hz. The substitute part additionally specifies 1.1 A ripple current @ 5 kHz, providing additional performance data not available for the original part.