TRACOPOWER TMR 3WI DC-DC Converter, ±12V dc/ ±125mA Output, 43 → 160 V dc Input, 3W, Through Hole

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£31.58

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RS Stock No.:
151-2881
Mfr. Part No.:
TMR 3-7222WIR
Brand:
TRACOPOWER
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Brand

TRACOPOWER

Output Voltage

±12V dc

Input Voltage Range

43 → 160 V dc

Power Rating

3W

Input Voltage Nominal

110 V dc

Output Current

±125mA

Mounting Type

Through Hole

Isolated

Yes

Number of Outputs

2

Package

SIP 8

Isolation Voltage

1.6kV dc

Depth

11.1mm

Width

9.2mm

Length

21.8mm

Railway Approved

Yes

Series

TMR 3WI

Efficiency

83%

Standards Met

cULus Listed, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61000-4-8, IEC 60950-1, MIL-STD-810F, UL 94 V-0, UL/cUL 60950-1

COO (Country of Origin):
TW

TRACOPOWER TMR 3WIR Series DC-DC Converter, ±12V DC Output Voltage, 3W Power Rating - TMR 3-7222WIR


This compact DC-DC converter from Tracopower is designed for consistent power delivery in various environments. With a power rating of 3W, it supports an input voltage range from 43 to 160V DC and provides a ±12 V DC output. This product, certified for railway applications, is suitable for transportation and industrial uses.

Features & Benefits


• Compact SIP-8 package fits in limited spaces
• I/O isolation voltage of 3000V DC enhances safety
• Operating temperature range from -40 to +90°C for adaptability
• Integrated short circuit protection increases durability
• High efficiency of 83% minimises energy loss
• Remote On/Off control simplifies system integration

Applications


• Suitable for use with railway equipment for effective power distribution
• Ideal for automation tasks requiring precise voltage regulation
• Works with electronic devices needing a regulated ±12 V supply
• Fits in high voltage systems where space is at a premium
• Designed for PCB mount in a variety of technical settings

How can the temperature range impact performance?


The converter maintains efficiency and reliable operation from -40 to +90°C, allowing it to function in different conditions.

What are the recommendations for external fusing?


Specific fuse ratings should be used based on input voltage

for instance, utilise 160 mA (slow blow) for 110V DC models.

How does the I/O isolation benefit the system?


The 3000V DC isolation promotes safety by preventing electrical faults from transferring between input and output, especially in sensitive situations.

What is the significance of the efficiency rating?


With an efficiency of 83%, the converter optimises energy usage and reduces heat generation, thereby improving overall system reliability.

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