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TRACO POWER TMR32421WI DC-DC Converter

The TMR 3WI series offers efficient, compact 3W isolated DC/DC converters with regulated outputs, operating from 4:1 input voltage range. Featuring a small footprint of 21.8 x 9.2 mm, these converters support -40°C to +85°C temperatures, making them ideal for space-critical applications in battery-powered equipment and instrumentation. They include remote On/Off control, short-circuit protection, high efficiency up to 82%, and UL/IEC safety standards compliance. Suitable for demanding industrial environments, these converters provide reliable power in a compact, high-performance package.

Authorized Distributors
Source:DigiKey
Part No:TMR 3-2421WI
Stock:73
Inv Date:05-30-2026
Price: Unit price: $25.5
Buy/RFQ:
Part No:TMR 3-2421WI
Stock:60
Inv Date:05-31-2026
Price: Unit price: $26.43
Buy/RFQ:
Part No:TMR 3-2421WI
Stock:0
Inv Date:05-30-2026
Price: Unit price: $28.69
Buy/RFQ:

TRACO POWER TMR32421WI DC-DC Converter Specifications:

  • Input voltage range: 4.5 VDC to 18 VDC (single 3.3V, 5V, 12V, 15V, 24V, 36V, 48V options)
  • Output power: 3W
  • Efficiency: up to 82%
  • Isolation voltage: 1600 VDC
  • Operating temperature: -40°C to +85°C
  • Input current at full load: 340 mA (12 V), 170 mA (24 V), 85 mA (48 V)
  • Surge voltage (max): 36 V (12 V), 50 V (24 V), 100 V (48 V)
  • Ripple: 30 mVp-p (20 MHz bandwidth)
  • Start-up time: 30 ms typical
  • Short circuit protection: continuous, automatic recovery
  • Case material: non-conductive plastic, potting: silicone (UL 94V-0)
  • Dimensions: 21.8 x 9.2 mm
  • Weight: 48 g
  • Input/output isolation: 1600 VDC
  • Safety standards: UL / cUL 60950-1, IEC 60950-1
  • Vibration & thermal shock: compliant with MIL-STD-810F
  • Environmental: Reach, RoHS compliant
  • MTBF: >3.4 million hours

Buy the Traco Power TMR32421WI – Reliable Isolated DC-DC Converter for Industrial Applications

Experience the high reliability and efficiency of the Traco Power TMR32421WI isolated DC-DC converter, designed for demanding industrial and instrumentation environments. With a compact footprint of 21.8 x 9.2 mm, it offers a wide input range from 4.5 VDC to 18 VDC, providing regulated outputs of 3.3V, 5V, 12V, 15V, 24V, 36V, or 48V. Its features include remote On/Off, short-circuit protection, and compliance with safety and EMI standards, making it the ideal choice for space-constrained, high-performance power applications.

Get Traco Power TMR32421WI today—built for precision, high efficiency, and space-critical industrial use.

Frequently Asked Questions

Where can I buy TRACO POWER TMR32421WI?

You can click on the BUY or RFQ button to purchase TMR32421WI from an authorized TRACO POWER distributor.

How do I troubleshoot issues or seek technical support for part TMR32421WI?

You can download the TMR32421WI datasheet or visit the TRACO POWER website for support.

Who is the manufacturer of TMR32421WI?

TRACO POWER

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