LM78M06CT Equivalent & Substitute Parts

Part Overview

The LM78M06CT is a linear voltage regulator IC manufactured by onsemi, designed to provide a fixed positive 6V output at 500mA. This through-hole TO-220-3 package component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The LM78M06CT delivers regulated 6V output from input voltages up to 35V with integrated over-temperature and short-circuit protection.

Key Parameters

Parameter	Value
Manufacturer Part Number	LM78M06CT
Manufacturer	onsemi
Category	Power Management (PMIC)
Package / Case	TO-220-3
Output Configuration	Positive
Output Type	Fixed
Voltage - Output (Min/Fixed)	6V
Voltage - Input (Max)	35V
Current - Output	500mA
Voltage Dropout (Max)	2V @ 500mA (Typ)
Current - Quiescent (Iq)	6 mA
PSRR	80dB (120Hz)
Protection Features	Over Temperature, Short Circuit
Operating Temperature	0°C ~ 125°C
Mounting Type	Through Hole
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the LM78M06CT are qualified based on the following critical parameters:

Output Voltage Match: All substitutes maintain the fixed 6V output specification
Package Compatibility: All substitutes use TO-220-3 through-hole packaging for direct board-level replacement
Input Voltage Rating: All substitutes accept maximum input voltage of 35V
Output Configuration: All substitutes provide positive fixed output with identical protection features (over-temperature and short-circuit)
Mounting Type: All substitutes are through-hole mounted components

The substitute parts listed (L7806ABV, L7806ACV-DG, L7806CV-DG) are STMicroelectronics equivalents that meet these core substitution criteria. These parts differ in output current capability (1.5A versus 500mA) and operating temperature ranges, which represent enhancements or variations rather than incompatibilities.

Parameter Comparison

Parameter	LM78M06CT	L7806ABV	L7806ACV-DG	L7806CV-DG
Manufacturer	onsemi	STMicroelectronics	STMicroelectronics	STMicroelectronics
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Output Voltage (Fixed)	6V	6V	6V	6V
Voltage - Input (Max)	35V	35V	35V	35V
Current - Output	500mA	1.5A	1.5A	1.5A
Voltage Dropout (Max)	2V @ 500mA	2V @ 1A	2V @ 1A	2V @ 1A
Current - Quiescent (Iq)	6 mA	6 mA	6 mA	8 mA
PSRR	80dB (120Hz)	65dB (120Hz)	65dB (120Hz)	59dB (120Hz)
Protection Features	Over Temperature, Short Circuit	Over Temperature, Short Circuit	Over Temperature, Short Circuit	Over Temperature, Short Circuit
Operating Temperature	0°C ~ 125°C	-40°C ~ 125°C	0°C ~ 125°C	0°C ~ 125°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Obsolete	Obsolete	Obsolete
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All three substitute parts (L7806ABV, L7806ACV-DG, L7806CV-DG) are functionally compatible with the LM78M06CT for applications requiring a fixed 6V positive output regulator in TO-220-3 packaging. Selection among these substitutes should be based on the following factors:

L7806ABV: Offers the widest operating temperature range (-40°C to 125°C) and is suitable for applications requiring extended low-temperature performance. This part provides 1.5A output capability, exceeding the original 500mA specification.

L7806ACV-DG: Maintains the standard 0°C to 125°C operating temperature range matching the original part. Output current is rated at 1.5A. PSRR performance is 65dB at 120Hz.

L7806CV-DG: Operates within the 0°C to 125°C temperature range. This part has the highest inventory availability (55,400 units) and provides 1.5A output current. Quiescent current is 8mA and PSRR is 59dB at 120Hz.

All substitute parts carry ROHS3 compliance certification. The LM78M06CT is marked as REACH Unaffected, and all substitutes maintain REACH Unaffected status.