TRACOPOWER TMR 3WI DC-DC Converter, 12V dc/ 250mA Output, 18 → 75 V dc Input, 3W, Through Hole, +85°C Max Temp

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£19.95

(exc. VAT)

£23.94

(inc. VAT)

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  • Plus 2 unit(s) shipping from 27 October 2025
  • Plus 23 unit(s) shipping from 03 November 2025
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5 - 9£19.35
10 - 24£18.76
25 - 49£17.96
50 +£17.16

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RS Stock No.:
666-3997
Mfr. Part No.:
TMR 3-4812WI
Brand:
TRACOPOWER
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Brand

TRACOPOWER

Output Voltage

12V dc

Input Voltage Range

18 → 75 V dc

Power Rating

3W

Input Voltage Nominal

48 V dc

Output Current

250mA

Mounting Type

Through Hole

Isolated

Yes

Number of Outputs

1

Package

SIP 8

Isolation Voltage

1.6kV dc

Length

21.8mm

Width

9.2mm

Depth

11.1mm

Series

TMR 3WI

Load Regulation

0.5%

Minimum Temperature

-40°C

Efficiency

81%

Standards Met

EN 60950-1

Medical Approved

No

Maximum Temperature

+85°C

COO (Country of Origin):
TW

Traco Power DC-DC Converter, SIP8 Format, 81% Conversion Efficiency - TMR 3WI Series - TMR 3-4812WI


Adapt your power source to suit your kit with this Traco Power DC-DC converter. It takes an input voltage of 18 to 75V DC and down-steps it to a steady 12V DC output. The unit has an 81% conversion efficiency, which minimises the need for an additional cooling mechanism as its heat output is low. Slotting the unit onto a PCB is no problem, thanks to its compact SIP8 footprint. Continuous short-circuit protection is on hand to ensure safe operation and prevent damage to downstream equipment.

Features & Benefits


• Remote ON/OFF function provides hassle-free appliance control
• Maximum ripple voltage of just 30mVp-p minimises disruption from power line noise
• Through-hole mounting for quick and easy fixing to a board
• Plastic and silicone insulation provide protection against electrical faults
• 820μF capacitive load ensures a smoother output voltage and reduced voltage ripple

Applications


• Manufacturing industry
• Charging stations
• Portable devices

Can I use this product in cold environments?


Yes, this converter performs reliably in temperatures between -40°C and +85°C, so it's a safe bet for challenging workplaces.

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