October 21, 2025
233
In today's industrial electronics landscape, reliable power conversion solutions are critical for system stability. The TDK-Lambda PXE20-24WD12 stands out as a robust 20W isolated DC/DC converter with dual ±12V outputs, delivering 833mA per channel with 81% efficiency. With its wide 9-36V input range and -40°C to +100°C operating temperature, this power module addresses growing demands for versatile, high-performance conversion in harsh environments. Read on to discover how this RoHS-compliant solution can optimize your power design.
The PXE20-24WD12 from TDK-Lambda is a through-hole mounted isolated DC/DC converter packaged in a compact 50.8×40.6×10.16mm DIP module. Key features include:
Dual Output: ±12V (833mA each) with 1.6kV isolation
Wide Input Range: 9-36V DC input voltage
High Efficiency: 81% typical (per manufacturer datasheet)
Industrial Robustness: Operates from -40°C to +100°C
Certifications: RoHS compliant, UL/IEC/EN 60950-1 safety standards
| Parameter | Specification | Source |
|---|---|---|
| Input Voltage Range | 9V - 36V DC | TDK-Lambda Datasheet |
| Output Voltage/Current (Channel 1) | +12V @ 833mA | Manufacturer Specifications |
| Output Voltage/Current (Channel 2) | -12V @ 833mA | Manufacturer Specifications |
| Isolation Voltage | 1.6kV | IEC 60950-1 |
| Operating Temperature | -40°C to +100°C | Industrial Standard Testing |
| Efficiency | 81% (typical at full load) | TDK-Lambda Test Data |
When choosing the PXE20-24WD12 for your application:
Verify Input Requirements: Ensure your power source matches the 9-36V range
Load Calculation: Total output power must not exceed 20W (12V×0.833A × 2)
Thermal Considerations: Account for heat dissipation in high-temp environments
Isolation Needs: Confirm 1.6kV isolation meets safety standards
Mechanical Fit: Check PCB spacing for 50.8×40.6mm footprint
The PXE20-24WD12's wide temperature range makes it ideal for:
PLC power supplies in manufacturing plants
Motor drive control circuits
HMI panel power conditioning
Used in:
Base station analog circuitry (±12V for op-amps)
Fiber optic network equipment
According to MarketsandMarkets™, the industrial DC/DC converter market is projected to grow at 6.8% CAGR from 2022-2027. Key drivers for products like the PXE20-24WD12 include:
Increasing automation in Industry 4.0
Demand for wide-input-range solutions
Need for compact power modules in space-constrained applications
| Model | PXE20-24WD12 | Similar Model X | Advantage |
|---|---|---|---|
| Input Range | 9-36V | 18-36V | Wider compatibility |
| Efficiency | 81% | 78% | Lower heat generation |
| Temp Range | -40°C to +100°C | -25°C to +85°C | Better harsh environment performance |
Emerging requirements for DC/DC converters include:
Higher power density (W/mm³)
Enhanced digital monitoring capabilities
Wider adoption of GaN/SiC technologies
The PXE20-24WD12's design aligns with these trends through its compact size and robust construction.
Yes, either +12V or -12V output can be used independently, but total power must not exceed 20W.
The module includes overcurrent and overtemperature protection (per IEC 60950-1).
Basic input/output filtering is included, but additional filtering may be needed for EMI-sensitive applications.
MTBF exceeds 1,000,000 hours at full load under normal operating conditions.
No, the outputs are not designed for parallel operation.
The TDK-Lambda PXE20-24WD12 delivers reliable, efficient power conversion for industrial systems requiring dual ±12V supplies. Its combination of wide input range, compact size, and extended temperature operation makes it a versatile choice for demanding applications.
For pricing and availability, contact our sales team: [email protected]
