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ONSEMI MC7918CTG Negative Voltage Regulator

The MC7918CTG is a -18V fixed negative linear voltage regulator designed for reliable power regulation in industrial and electronic systems. It features internal current limiting, thermal shutdown, and safe-area compensation, ensuring robust operation even under high load conditions. With proper heatsinking, it can deliver output currents over 1A. The device requires no external components, simplifying design, and maintains a precise 4% voltage tolerance. Its rugged features make it ideal for power management, automation, and control applications requiring stable negative voltage regulation.

Authorized Distributors
Source:Newark
Part No:MC7918CTG
Stock:429
Inv Date:06-10-2026
Price: Unit price: $0.7
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Source:DigiKey
Part No:MC7918CTG
Stock:2739
Inv Date:06-10-2026
Price: Unit price: $0.68
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Part No:MC7918CTG
Stock:837
Inv Date:06-11-2026
Price: Unit price: $0.68
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Part No:MC7918CTG
Stock:0
Inv Date:06-10-2026
Price: Unit price: $1.25
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Part No:MC7918CTG
Stock:1000
Inv Date:06-10-2026
Price: Unit price: $0.2575
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Part No:MC7918CTG
Stock:1000
Inv Date:06-10-2026
Price: Unit price: $0.2575
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Part No:MC7918CTG
Stock:2700
Inv Date:06-10-2026
Price: Unit price: $0.25
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Source:Arrow EU
Part No:MC7918CTG
Stock:2950
Inv Date:06-11-2026
Price: N/A
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ONSEMI MC7918CTG Negative Voltage Regulator Specifications:

  • Output Voltage: -18V ± 4%
  • Maximum Output Current: >1A with heatsinking
  • Internal Current Limiting: Yes
  • Thermal Shutdown: Yes
  • Safe-Area Compensation: Yes
  • Voltage Tolerance: 4%
  • No external components required
  • Package: TO-220, G-Lead Free available
  • Junction Temperature Range: 0°C to +125°C
  • Input Voltage Range: -20V to -30V
  • Thermal Resistance (Case to Ambient): 62 °C/W
  • Output Noise Voltage: 75 nV (Typ, 10 Hz – 100 kHz)
  • Ripple Rejection: 60 dB
  • Dropout Voltage: 13V at 1A load
  • Storage Temperature Range: -65°C to +150°C
  • Line Regulation: 8 mV at 1A
  • Load Regulation: 40 mV at 1A
  • Qualifies for industrial certifications and is suitable for high-reliability systems

Buy the ON Semiconductor MC7918CTG – Reliable -18V Negative Regulator for Industrial Applications

Purchase the ON Semiconductor MC7918CTG today and ensure stable, reliable -18V power regulation for your industrial and electronic systems. Its internal protections, high current capacity, and no external components design simplify your setup and enhance system robustness. Ideal for automation and control applications, this regulator delivers over 1A of current with small footprint and consistent voltage accuracy. Secure your supply chain and optimize system reliability by buying online now, benefitting from fast shipping and manufacturer support.

Buy ON Semiconductor MC7918CTG now and experience unmatched reliability and performance for power regulation needs in industrial systems.

Frequently Asked Questions

Where can I buy ONSEMI MC7918CTG?

You can click on the BUY or RFQ button to purchase MC7918CTG from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part MC7918CTG?

You can download the MC7918CTG datasheet or visit the ONSEMI website for support.

Who is the manufacturer of MC7918CTG?

ONSEMI

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