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Best Alternatives to L78M15CDT-TR

Package: TO-252-3, DPak (2 Leads + Tab), SC-63STMicroelectronicsVoltage Regulators - LinearPackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Output Type: FixedNumber of Regulators: 1Voltage - Input (Max): 35VVoltage - Output (Min/Fixed): 15V

The L78M15CDT-TR is a 15V, 500mA linear voltage regulator in a DPAK package. When seeking a replacement, key factors include package compatibility, input voltage range, and output current capability.

AI replacement insight

Package riskhigh

Many functional alternatives are in different packages (TO-220, D2PAK) and are not drop-in replacements.

Electrical riskmedium

Some alternatives have lower voltage ratings. Always verify Vin(max) is >= 35V.

Sourcing risklow

The L78 series is widely produced, but performance can vary between manufacturers.

Can it be replaced directly?

Direct replacement for L78M15CDT-TR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The most direct replacement is L78M15ABDT-TR, an upgraded version from the original manufacturer, STMicroelectronics.

Main risk

The main risk when choosing other alternatives is package mismatch, which requires a board redesign, or reduced electrical ratings like a lower maximum input voltage.

Recommended alternatives

5
L78M15ABDT-TR package
L78M15ABDT-TR

STMicroelectronics

Needs validationlow risk

A higher-precision upgrade from the same manufacturer in the identical DPAK package, offering a wider temperature range.

View details

Alternative comparison matrix

Feature / factorL78M15CDT-TRL78M15ABDT-TRCJ7815B-TFN-ARGL7815CV(UMW)Compatibility / risk
PackageDPAKDPAK (TO-252)TO-252-2LTO-220DPAK (TO-252) / TO-252-2L / TO-220 / TO-220-3 — Identical package and pin count.; CJ7815B-TFN-ARG: TO-252 is equivalent to DPAK.; L7815CV(UMW): Through-hole package requires board redesign.; LM7815T: Through-hole package requires board redesign.
Tolerance4% (Standard 'C' version)2%±2%-2% / ±2% — Candidate has tighter output voltage tolerance.; CJ7815B-TFN-ARG: Tighter output voltage tolerance.
Temperature0°C to 125°C-40°C to 125°C--40°C to 125°C-40°C to 125°C — Wider operating temperature range.; L7815CV(UMW): Wider operating temperature range.
Current0.5 A0.5 A1.0 A1.2 A0.5 A / 1.0 A / 1.2 A — Output current matches.; CJ7815B-TFN-ARG: Higher output current capability.; L7815CV(UMW): Higher output current capability.; LM7815T: Higher output current capability.
ManufacturerSTMicroelectronics-Jiangsu Changjing-Jiangsu Changjing — Cross-vendor alternative requires careful validation.
Voltage35 V---35 V — Maximum input voltage matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for L78M15CDT-TR are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.