TRACOPOWER THN 20WIR DC-DC Converter, 3.3V dc/ 5.5A Output, 18 → 75 V dc Input, 20W, Through Hole, +65°C Max

RS Stock No.:: 230-4713
Mfr. Part No.:: THN 20-4810WIR
Brand:: TRACOPOWER

TRACOPOWER THN 20WIR DC-DC Converter, 3.3V dc/ 5.5A Output, 18 → 75 V dc Input, 20W, Through Hole, +65°C Max

Bulk discount available

Subtotal (1 tube of 10 units)*

£516.78

(exc. VAT)

£620.14

(inc. VAT)

FREE delivery for orders over £50.00

Temporarily out of stock

Shipping from 13 March 2026

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

Tube(s)	Per Tube	Per unit*
1 - 4	£516.78	£51.678
5 - 9	£501.27	£50.127
10 - 24	£485.77	£48.577
25 - 49	£465.09	£46.509
50 +	£444.43	£44.443

*price indicative

RS Stock No.:: 230-4713
Mfr. Part No.:: THN 20-4810WIR
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	3.3V dc
	Input Voltage Range	18 → 75 V dc
	Power Rating	20W
	Input Voltage Nominal	48 Vdc
	Output Current	5.5A
	Mounting Type	Through Hole
	Isolated	Yes
	Number of Outputs	1
	Output Voltage Adjustment Range	-10 → 20%
	Package	1 x 1 in
	Isolation Voltage	2.25kV dc
	Depth	9.9mm
	Width	25.4mm
	Length	25.4mm
	Series	THN 20WIR
	Railway Approved	Yes
	Load Regulation	0.1%
	Efficiency	89%
	Minimum Temperature	-40°C
	Maximum Temperature	+65°C
	Standards Met	IEC/EN 62368-1
	Medical Approved	No

	Select all
	Brand TRACOPOWER
	Output Voltage 3.3V dc
	Input Voltage Range 18 → 75 V dc
	Power Rating 20W
	Input Voltage Nominal 48 Vdc
	Output Current 5.5A
	Mounting Type Through Hole
	Isolated Yes
	Number of Outputs 1
	Output Voltage Adjustment Range -10 → 20%
	Package 1 x 1 in
	Isolation Voltage 2.25kV dc
	Depth 9.9mm
	Width 25.4mm
	Length 25.4mm
	Series THN 20WIR
	Railway Approved Yes
	Load Regulation 0.1%
	Efficiency 89%
	Minimum Temperature -40°C
	Maximum Temperature +65°C
	Standards Met IEC/EN 62368-1
	Medical Approved No

RoHS Status: Exempt

COO (Country of Origin):: TW

TRACOPOWER THN 20WIR Series DC-DC Converter, 89% Efficiency, 2.25kV DC Isolation Voltage - THN 20-4810WIR

This DC-DC converter provides efficient power conversion across a broad input voltage range, making it suitable for various applications. With a robust design and isolation features, it is suitable for railway environments and focuses on delivering stable and safe power supply solutions, essential for automation and electronic systems.

Features & Benefits

• Compact design facilitates integration in limited spaces
• High efficiency of up to 91% reduces energy consumption
• Isolated design improves safety in sensitive applications
• Protection features defend against overloads and short circuits
• Remote On/Off functionality enhances operational control

Applications

• Utilised in railway control systems for dependable power
• Applied in industrial automation for stable functioning
• Suitable for electronics requiring isolation and efficiency
• Employed in telecommunication equipment needing consistent power supply

What power rating should I consider when selecting this?

Its nominal power rating is 20W, appropriate for various applications.

How can I adjust the output voltage if needed?

Output voltage can be adjusted using an external trim resistor.

Is this converter easy to mount on a PCB?

Yes, it features a through-hole mounting type for straightforward installation.

What safety standards does it comply with for railway applications?

It has EN 50155 and EN 61373 approvals, ensuring suitability for railway contexts.