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onsemi MC78M06CTG
- Part No.:
- MC78M06CTG
- Manufacturer:
- onsemi
- Package:
- TO-220-3
- Datasheet:
-
MC78M06CTG.pdf
- Description:
- IC REG LINEAR 6V 500MA TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,872
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Product details
Overview
MC78M06CTG from onsemi is a 500 mA, 6.0 V fixed-output linear voltage regulator in TO-220 package with ±2.5% output voltage tolerance at 25°C, 2.0 V dropout, and integrated thermal shutdown and short-circuit protection. It delivers stable local regulation for industrial control modules, automotive body electronics, and embedded power supplies where input voltage ranges from 8.0 V to 21 V.
For engineers reviewing the MC78M06CTG datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 500 mA output current with heatsinking, ±0.2 mV/°C temperature coefficient, 59 dB ripple rejection at 100 mA, and compatibility with standard TO-220 mounting and thermal management practices.
Technical Context
The MC78M06CTG employs a monolithic PNP pass transistor with safe-area compensation and internal current limiting. Its architecture supports operation across −40°C to +125°C junction temperature range without external components, relying on built-in thermal overload protection and output short-circuit current limiting to maintain reliability under transient overloads.
It achieves 6.0 V regulation via trimmed resistor networks and bandgap reference circuitry, with line regulation of 5.0 mV (max) over 8.0–25 V input and load regulation of 20 mV (max) across 5–500 mA output current - all specified under TJ = 25°C with PD ≤ 5.0 W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 6.0 V ±2.5% at TJ = 25°C - ensures precise rail generation for 6 V logic or analog subsystems |
| Max Output Current | 500 mA with adequate heatsinking - supports mid-power microcontroller peripherals and sensor interfaces |
| Dropout Voltage | 2.0 V typical at TJ = 25°C - requires minimum 8.0 V input for stable 6.0 V output |
| Ripple Rejection | 59 dB at 100 mA, 120 Hz - suppresses AC line noise in unregulated DC inputs |
| Thermal Shutdown | Active at TJ ≥ +150°C - prevents permanent damage during sustained overload or poor heatsinking |
| Quiescent Current | 3.2 mA typical - enables low-noise operation without excessive standby power loss |
| Operating Temp Range | −40°C to +125°C junction - qualified for under-hood automotive and industrial environments |
Pinout & Package
MC78M06CTG uses the TO-220 (Case 221AB) package with three terminals: Pin 1 = Input, Pin 2 = Ground, Pin 3 = Output. The metal tab (heatsink surface) is electrically connected to Pin 2 (Ground), enabling direct mounting to grounded heat sinks without isolation hardware.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Input | Accepts unregulated DC input (8.0–21 V); must be bypassed with ≥0.33 µF capacitor for stability |
| Pin 2 | Ground | Reference node for regulation; connects internally to heatsink tab - requires grounding for thermal and electrical safety |
| Pin 3 | Output | Delivers regulated 6.0 V; capable of sourcing up to 500 mA with proper thermal design |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Self-contained regulation eliminates need for external feedback resistors or compensation networks |
| Internal thermal overload protection | Automatic shutdown at +150°C junction temperature prevents catastrophic failure during overheating |
| Internal short-circuit current limiting | Clamps output current to ~350 mA at VI = 35 V - protects against wiring faults and load shorts |
| Safe-area compensated pass transistor | Reduces short-circuit current as VI–VO increases - maintains SOA integrity under high-dissipation conditions |
| Pb-free TO-220 package | RoHS-compliant plastic package with tin-plated leads and grounded heatsink tab |
Applications
| Industrial Control Power | Automotive Body Electronics |
|---|---|
Use Scenario: Powering PLC I/O modules and relay drivers in factory automation cabinets with 12–24 VDC bus inputs. IC Role / Device Role / Timing Role: Local point-of-load regulator converting noisy 12 V supply to clean 6 V for analog sensor signal conditioning and optocoupler biasing. Use Value: Delivers 500 mA at ±2.5% accuracy with 59 dB ripple rejection - eliminates need for additional filtering stages in space-constrained enclosures. | Use Scenario: Supplying 6 V to interior lighting controllers, door module MCUs, and HVAC actuators in passenger vehicles. IC Role / Device Role / Timing Role: Primary 6 V regulator in non-safety-critical body domain ECUs operating across −40°C to +125°C ambient. Use Value: AEC-Q100-compatible thermal shutdown and short-circuit protection ensure robustness against battery transients and harness faults. |
| Embedded System Auxiliary Rail | Test & Measurement Equipment |
Use Scenario: Generating auxiliary 6 V rail for op-amp biasing, DAC reference, and FPGA configuration memory in portable instruments. IC Role / Device Role / Timing Role: Low-noise linear regulator providing stable analog supply independent of main system switching regulators. Use Value: 45 µV RMS output noise (10 Hz–100 kHz) and ±0.2 mV/°C tempco enable sub-mV precision in measurement front-ends. | Use Scenario: Powering calibration circuitry, reference dividers, and analog front-end ICs in benchtop multimeters and signal generators. IC Role / Device Role / Timing Role: Fixed-output voltage source for metrology-grade analog subsystems requiring long-term stability and minimal drift. Use Value: Guaranteed 6.0 V ±2.5% over full temperature range and <0.8 mA quiescent current change support traceable, repeatable test conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC78M06CDTRKG | DPAK-3 surface-mount package; same electrical specs but lower thermal resistance to PCB (θJC = 5.0°C/W) | Suitable for automated SMT assembly and compact PCB layouts; requires copper pour for thermal performance | Select when board space is constrained and reflow soldering is preferred over through-hole mounting |
| NCV78M06BDTRKG | Automotive-grade variant with −40°C to +125°C operation and AEC-Q100 qualification; identical 6.0 V output and 500 mA rating | Required for production automotive ECUs; includes PPAP documentation and enhanced process controls | Choose for OEM automotive programs where qualification and supply chain traceability are mandatory |
Compared with MC78M06CTG, the DPAK alternative offers superior board-level thermal integration but lacks the mechanical robustness of TO-220 for high-vibration environments, while the NCV version adds automotive compliance overhead without altering core regulation performance.
Availability
MC78M06CTG is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, and embedded instrumentation requiring stable component supply with full RoHS compliance and long-lifecycle support.
Supply support for MC78M06CTG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (formerly ON Semiconductor) is a global semiconductor manufacturer specializing in energy-efficient power management, analog, and sensor solutions for automotive, industrial, and cloud infrastructure markets.
The MC78M00 series was designed as a rugged, drop-in replacement for legacy 78xx regulators - delivering 500 mA output with enhanced thermal protection and automotive-grade variants for mission-critical embedded power applications.
FAQ
What is the maximum input voltage rating for MC78M06CTG?
The MC78M06CTG has an absolute maximum input voltage of 35 Vdc under normal operating conditions. However, for reliable long-term operation with 6.0 V output, the recommended input range is 8.0 V to 21 Vdc per its electrical characteristics table - exceeding this may increase power dissipation beyond safe limits without adequate heatsinking.
Does MC78M06CTG require input or output capacitors for stable operation?
MC78M06CTG does not require external capacitors for basic regulation, but an input bypass capacitor (≥0.33 µF tantalum or ceramic) is strongly recommended when connected via long traces or high-impedance sources to prevent oscillation. An output capacitor is optional but improves transient response and noise suppression.
Can MC78M06CTG be used in automotive applications?
MC78M06CTG operates across −40°C to +125°C junction temperature and includes thermal shutdown and short-circuit protection, making it suitable for non-safety-critical automotive body electronics. For certified automotive use, the NCV78M06BDTRKG variant is recommended as it carries full AEC-Q100 qualification and PPAP capability.
What is the thermal resistance (θJC) of MC78M06CTG in TO-220 package?
The MC78M06CTG in TO-220 (Case 221AB) package has a junction-to-case thermal resistance (θJC) of 5.0°C/W. This value assumes proper mounting of the metal tab to a grounded heatsink; actual thermal performance depends on interface material, contact pressure, and heatsink size.
How does MC78M06CTG handle short-circuit conditions?
MC78M06CTG features internal short-circuit current limiting that clamps output current to approximately 350 mA when VI = 35 V, combined with thermal shutdown activation at +150°C junction temperature. These dual protections prevent device destruction during sustained output shorts while allowing automatic recovery once fault conditions are removed.
MC78M06CTG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 35V
- Voltage - Output (Min/Fixed):
- 6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 80dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- 0°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
MC78M06CTG FAQ
1.How can I place an order for MC78M06CTG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC78M06CTG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC78M06CTG reliable?
The price and inventory of MC78M06CTG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC78M06CTG is usually 5 days.
3.What payment methods are accepted for MC78M06CTG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC78M06CTG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC78M06CTG?
MC78M06CTG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC78M06CTG order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC78M06CTG?
For technical support, including MC78M06CTG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC78M06CTG requirements.
6.How does Aetrix verify that MC78M06CTG is sourced from the original manufacturer or authorized distributors?
All MC78M06CTG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC78M06CTG meets industry standards.
7.What is the process for return or replacement of MC78M06CTG?
All MC78M06CTG units undergo pre-shipment inspection (PSI). If there is an issue with MC78M06CTG, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC78M06CTG part is unused and in its original packaging.
Return procedure for MC78M06CTG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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