TDK GST120A24-P1M — 24V/5A Desktop Power Supply for Industrial and Medical Applications
2025/05/28
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The GST120A24-P1M from TDK-Lambda is a 24V, 120W desktop AC-DC power adapter designed to meet the stringent demands of industrial equipment, test and measurement systems, and medical electronics. Certified to international safety standards and built for high reliability, it offers high efficiency, low leakage current, and Class I insulation in a compact, fanless design.
This article provides an in-depth overview of the GST120A24-P1M’s specifications, key features, application scenarios, and sourcing recommendations—enabling design engineers and procurement professionals to assess its suitability for demanding power applications.
Overview
Manufactured by TDK-Lambda, the GST120A24-P1M is a Class I desktop-type external power supply that delivers regulated 24VDC output at up to 5A (120W). It accepts universal AC input (90–264V) and complies with major safety approvals, including IEC/UL/EN 60950-1 and IEC/EN/UL 62368-1, making it ideal for global deployment.
With its high-efficiency operation (up to 91%) and low standby power (<0.15W), this power supply meets DoE Level VI and EU ErP Tier 2 requirements for energy efficiency and sustainability.
Key Features
Output Power: 120W
Output Voltage: 24V DC ±5%
Output Current: Up to 5A
Input Voltage Range: 90–264V AC, 47–63Hz
Efficiency: Up to 91% typical at full load
Ripple & Noise: <240mVp-p (typical)
No Load Power Consumption: <0.15W
Protections:
Overvoltage Protection
Overcurrent Protection
Short Circuit Protection
Mechanical:
Dimensions: 6.5" × 2.6" × 1.5" (165mm × 65mm × 38mm)
Weight: ~650g
Connector: 2.1mm × 5.5mm barrel plug, center positive (P1M)
Enclosure: UL94V-1 flame-retardant plastic case
Cooling: Convection, fanless design
Certifications:
IEC/EN/UL 62368-1
EN55032 Class B (EMI)
EN55024 (Immunity)
EN61000-3-2, -3-3 (Harmonics and Flicker)
CB, CE, cULus, RCM, PSE
Safety Class: Class I (with Ground Pin)
Environment:
Operating Temperature: -20°C to +60°C (de-rating above 40°C)
Storage Temperature: -40°C to +85°C
MTBF: >300,000 hours (MIL-HDBK-217F, at 25°C)
Applications
The GST120A24-P1M is engineered for a wide variety of applications that require reliable, efficient external power conversion:
Industrial Equipment: Powering automation systems, sensors, test instruments, and PLCs
Medical Electronics (non-patient contact): Suitable for diagnostic devices, imaging systems, and monitoring instruments
Measurement and Lab Equipment: Oscilloscopes, analyzers, and bench tools
LED Displays and Signage: Constant-voltage 24V supply for commercial LED applications
Communication Devices: Routers, repeaters, modems, and embedded gateway systems
Procurement & Alternative Models
The GST120A24-P1M is widely stocked by authorized distributors such as Futuretech Components, Digi-Key, Mouser, and Farnell. It is available in both standard and customized DC plug configurations to match application needs.
Alternate models to consider:
GST120A12-P1M: 12V version of the same series
GST90A24-P1M: Lower wattage (90W) version with 24V output
YSD-120U-24: Third-party alternative with similar specs
Futuretech Components offers flexible sourcing solutions, traceable components, and fast fulfillment to help engineers and buyers minimize lead time and procurement risk.
Conclusion
The TDK-Lambda GST120A24-P1M is a high-performance desktop power adapter that combines energy efficiency, global compliance, and robust protection features in a compact, fanless enclosure. Its 24V/5A output makes it suitable for powering a broad range of industrial and electronic systems where quality and reliability are critical.
As a trusted electronic component distributor, Futuretech Components delivers genuine TDK-Lambda products including the GST120 series. We provide sourcing support, technical documentation, and customer service to ensure seamless integration into your power design.
📩 Looking for GST120A24-P1M or similar AC-DC adapters? Contact Futuretech Components for data sheets, lead time, and application-specific recommendations.
FAQ
What is the GST120A24-P1M?
It’s a 24V/5A, 120W Class I desktop AC-DC power adapter from TDK-Lambda. It’s designed for use in industrial, medical, and instrumentation systems.
What connector does the GST120A24-P1M use?
It comes with a 2.1mm × 5.5mm barrel plug (P1M) by default. Other plug types are available upon request.
Is it medically approved?
Yes, it complies with IEC/EN/UL 62368-1 and is suitable for medical applications that do not require patient contact.
Does it support worldwide input?
Yes. It accepts 90–264V AC input, making it compatible with global AC standards.
What makes it energy-efficient?
It meets DoE Level VI and ErP Tier 2 standards, offering <0.15W no-load power consumption and up to 91% efficiency at full load.
