DTO25 SMD Power Thick Film Resistors

By Vishay/Sfernice 61

DTO25 SMD Power Thick Film Resistors

Vishay offers an AEC-Q200-qualified, 25 W thick film power resistor in a compact, surface-mount TO-252 style (DPAK) package. For automotive, industrial, and military applications, the Vishay Sfernice DTO25 saves space compared to previous-generation solutions, while providing high power dissipation of at least 3.2 W on the PCB and a wide range of resistance values. DTO25 is non-inductive and provides a resistance range from 0.016 Ω to 700 kΩ. Offering a compact 8.2 mm by 7.3 mm footprint with a low 2.8 mm profile, the thick film resistor can support high energy, up to 5 kW+ for a 10-5 second pulse and 10 J for a 0.1 second pulse.

DTO25 provides long-term reliability for power supply, load resistor, snubber, power conversion, and pre-charging and discharging in battery management systems for hybrid and electric cars, missile control boards, and UPS. In these applications, it allows designers to replace several chip resistors with one device to lower costs, simplify layouts, and reduce the size of their end products. The device is RoHS-compliant, offers a moisture sensitivity level of 1, and supports soldering temperatures at +270°C for 10 seconds.

Features
  • Standard TO-252 (Dpak) package isolated
  • AEC-Q200 qualified
  • Non-inductive
  • Compact, low-profile 2.8 mm thickness
  • Standard SMD soldering process friendly
  • Lead (Pb)-free, halogen free and RoHS-compliant
  • 25 W at 25°C case temperature heatsink mounted
  • 3.2 W on standard PCB
  • High energy capability up to 10 J for 0.1 s pulse
  • Dielectric strength 1,500 VRMS
  • Wide resistance range 0.016 Ω to 700 kΩ; low values available from R016 in 1% tolerance
  • Tolerances (standard): ±1% to ±10%
  • Temperature coefficient (standard): ±150 ppm/°C
Applications
  • Automotive pre-charge in BMS
  • Pulse-loading: snubber or bleeder resistors
  • DC-DC converters
  • Medical and industrial control environments
  • High-speed switching
  • Current sensing

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