TRACOPOWER TMR 3WI DC-DC Converter, -5V dc/ 300mA Output, 4.5 → 18 V dc Input, 3W, Through Hole, +85°C Max Temp
- RS Stock No.:
- 200-8408
- Mfr. Part No.:
- TMR 3-1221WI
- Brand:
- TRACOPOWER
Bulk discount available
Subtotal (1 tube of 10 units)*
£210.42
(exc. VAT)
£252.50
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 1 unit(s) ready to ship
- Plus 1 unit(s) shipping from 06 November 2025
- Plus 999,999,997 unit(s) shipping from 03 February 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Tube(s) | Per Tube | Per unit* |
|---|---|---|
| 1 - 4 | £210.42 | £21.042 |
| 5 - 9 | £204.10 | £20.41 |
| 10 - 24 | £197.79 | £19.779 |
| 25 - 49 | £189.38 | £18.938 |
| 50 + | £180.96 | £18.096 |
*price indicative
- RS Stock No.:
- 200-8408
- Mfr. Part No.:
- TMR 3-1221WI
- 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 | -5 V dc, 15V dc | |
| Input Voltage Range | 4.5 → 18 V dc | |
| Power Rating | 3W | |
| Input Voltage Nominal | 12 V dc | |
| Output Current | 300mA | |
| Mounting Type | Through Hole | |
| Number of Outputs | 2 | |
| Package | SIP 8 | |
| Isolation Voltage | 1.6kV dc | |
| Width | 9.1mm | |
| Depth | 11.2mm | |
| Length | 21.8mm | |
| Railway Approved | No | |
| Series | TMR 3WI | |
| Load Regulation | 0.01 | |
| Minimum Temperature | -40°C | |
| Medical Approved | No | |
| Maximum Temperature | +85°C | |
| Efficiency | 0.8 | |
Select all | ||
|---|---|---|
Brand TRACOPOWER | ||
Output Voltage -5 V dc, 15V dc | ||
Input Voltage Range 4.5 → 18 V dc | ||
Power Rating 3W | ||
Input Voltage Nominal 12 V dc | ||
Output Current 300mA | ||
Mounting Type Through Hole | ||
Number of Outputs 2 | ||
Package SIP 8 | ||
Isolation Voltage 1.6kV dc | ||
Width 9.1mm | ||
Depth 11.2mm | ||
Length 21.8mm | ||
Railway Approved No | ||
Series TMR 3WI | ||
Load Regulation 0.01 | ||
Minimum Temperature -40°C | ||
Medical Approved No | ||
Maximum Temperature +85°C | ||
Efficiency 0.8 | ||
- COO (Country of Origin):
- TW
Traco Power DC-DC Converter, 1600V DC Isolation Voltage, 80% Efficiency - TMR 3WI Series - TMR 3-1221WI
Looking for a compact power solution that gets the job done in space-critical applications? This DC-DC converter from Traco Power does the trick. It converts inputs between 4.5 and 18V DC into a stable ±5V DC feed to energise your battery-operated gadgets. Thanks to a footprint of 21.8 (L) x 9.1 (W) x 11.2mm (D), it takes up minimal room on your PCB. Plus, you can run two circuits from it at the same time to streamline your assembly.
Features & Benefits
• Safety approval to EN 62368-1 standard, assuring you it's safe for use in electronic instruments
• 3W power rating ensures energy-efficient performance
• At just 4.8g, it adds negligible weight to your setup
• Remote function lets you switch it on or off from a distance
• 3W power rating ensures energy-efficient performance
• At just 4.8g, it adds negligible weight to your setup
• Remote function lets you switch it on or off from a distance
Applications
• Consumer electronics
• Testing and measuring instruments
• Medical devices
• Telecommunications equipment
• Testing and measuring instruments
• Medical devices
• Telecommunications equipment
Does this DC-DC converter have any electrical protection features?
Yes, it has continuous short-circuit protection to prevent damage and downtime caused by overcurrent.
Is it safe to touch this DC-DC converter when it's on?
Yes. Hardy plastic housing encapsulates and insulates all live components, keeping you shock-free.