TRACOPOWER TMR DC-DC Converter, 5V dc/ 800mA Output, 9 → 18 V dc Input, 4W, PCB Mount, +85°C Max Temp -40°C Min

RS Stock No.:: 209-9790
Mfr. Part No.:: TMR 4-1211
Brand:: TRACOPOWER

TRACOPOWER TMR DC-DC Converter, 5V dc/ 800mA Output, 9 → 18 V dc Input, 4W, PCB Mount, +85°C Max Temp -40°C Min

Bulk discount available

Subtotal (1 tube of 10 units)*

£125.80

(exc. VAT)

£150.96

(inc. VAT)

FREE delivery for orders over £50.00

Temporarily out of stock

Shipping from 12 February 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Tube(s)	Per Tube	Per unit*
1 - 4	£125.80	£12.58
5 - 9	£122.02	£12.202
10 - 24	£118.25	£11.825
25 - 49	£113.23	£11.323
50 +	£108.19	£10.819

*price indicative

RS Stock No.:: 209-9790
Mfr. Part No.:: TMR 4-1211
Brand:: TRACOPOWER

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	TRACOPOWER
	Output Voltage	5V dc
	Input Voltage Range	9 → 18 V dc
	Power Rating	4W
	Input Voltage Nominal	12 V dc
	Output Current	800mA
	Mounting Type	PCB Mount
	Isolated	Yes
	Number of Outputs	1
	Output Voltage Adjustment Range	5V dc
	Package	SIP 8
	Isolation Voltage	1.6kV
	Length	21.8mm
	Depth	11.2mm
	Width	9.3mm
	Series	TMR
	Load Regulation	0.01
	Maximum Temperature	+85°C
	Minimum Temperature	-40°C
	Standards Met	EN 62368-1
	Medical Approved	Yes
	Efficiency	82%

	Select all
	Brand TRACOPOWER
	Output Voltage 5V dc
	Input Voltage Range 9 → 18 V dc
	Power Rating 4W
	Input Voltage Nominal 12 V dc
	Output Current 800mA
	Mounting Type PCB Mount
	Isolated Yes
	Number of Outputs 1
	Output Voltage Adjustment Range 5V dc
	Package SIP 8
	Isolation Voltage 1.6kV
	Length 21.8mm
	Depth 11.2mm
	Width 9.3mm
	Series TMR
	Load Regulation 0.01
	Maximum Temperature +85°C
	Minimum Temperature -40°C
	Standards Met EN 62368-1
	Medical Approved Yes
	Efficiency 82%

RoHS Status: Not Applicable

COO (Country of Origin):: TW

TRACOPOWER TMR Series DC-DC Converter, 5V DC Output Voltage, 4W Power Rating - TMR 4-1211

This isolated DC-DC converter offers a stable output voltage of 5V DC sourced from an input voltage range of 9 to 18V DC. With a power rating of 4W, it is suitable for various applications within the automation and electronics sectors, ensuring effective performance where precision is crucial.

Features & Benefits

• Compact SIP-8 package maximises space in electronic designs
• High efficiency of 82% reduces energy consumption
• Wide input voltage range supports compatibility with different systems
• I/O isolation voltage of 1.6kV enhances safety in sensitive applications

Applications

• Powering medical devices and equipment
• Utilised in industrial automation systems
• Employed within PCB mount power supplies
• Suitable for telecommunications equipment that requires consistent voltage

How does the output voltage remain regulated during operation?

It features fully regulated outputs that provide a stable voltage despite variations in input voltage or load conditions.

Can it be used in high-temperature environments?

Yes, it operates effectively in temperatures ranging from -40 to +85°C without derating, making it appropriate for industrial applications.

Is any additional protection required for installation?

While it includes built-in overload and short-circuit protection, evaluating the need for an external fuse may be necessary based on specific installation requirements.

How do I control the power supply remotely?

The integrated remote On/Off function allows for easy voltage-controlled operation, facilitating convenient remote control of the power supply.