TRACOPOWER TDR 3WISM DC-DC Converter, 12V dc/ 250mA Output, 18 → 75 V dc Input, 3W, Surface Mount, +85°C Max

RS Stock No.:: 166-5811
Mfr. Part No.:: TDR 3-4812WISM
Brand:: TRACOPOWER

TRACOPOWER TDR 3WISM DC-DC Converter, 12V dc/ 250mA Output, 18 → 75 V dc Input, 3W, Surface Mount, +85°C Max

Bulk discount available

Price 1 Tube of 10**

£281.80

(exc. VAT)

£338.16

(inc. VAT)

Available to back order for despatch 18/04/2025*

* Delivery dates may change based on your chosen quantity and delivery address.

FREE delivery for orders over £50.00

Tube(s)	Per Tube	Per unit**
1 - 4	£281.80	£28.18
5 - 9	£273.35	£27.335
10 - 24	£264.89	£26.489
25 - 49	£253.62	£25.362
50 +	£242.35	£24.235

**price indicative

RS Stock No.:: 166-5811
Mfr. Part No.:: TDR 3-4812WISM
Brand:: TRACOPOWER

Datasheet

Traco 3W SMD Single/Dual Output Regulated Isolated DC-DC Converter - TDR 3SWISM Series

3W single/dual output regulated isolated DC-DC converter with a compact SMD design and wide 4:1input voltage range. These SMD isolated DC-DC converters have a high efficiency, low ripple and noise and can be used in operating temperatures as high as +85°C. Suitable applications for these DC-DC converters include communication equipment, instrumentation and industrial electronics.

Wide 4:1 input voltage range
Fully regulated outputs
No minimum load required
Low ripple and noise
I/O-isolation 1500 Vdc
Operating temperature range –40 °C to +85 °C
Continuous short circuit protection
Remote On/Off control
Qualified for lead free reflow solder process according to IPC J-STD-020D

Note

MTBF to MIL-HDBK-217F, @ +25°C, ground benign
For details on EMC compliance please refer to manufacturers datasheet on our website.
Suitable common mode chokes:
TDR 3-12xx : see stock number 745-1180
TDR 3-24xx : see stock number 745-1200
TDR 3-48xx : see stock number 745-1171

Standards

Designed to meet IEC/EN 60950-1, UL 60950-1

TRACOPOWER TDR 3WISM Series DC-DC Converter, 0.81 Efficiency, 1.5kV DC Isolation Voltage - TDR 3-4812WISM

This DC-DC converter efficiently transforms higher voltage inputs into a stable 12 V DC output, making it valuable for various automation and instrumentation applications. It supports an input voltage range of 18-75 V DC, providing flexibility and performance in various environments.

Features & Benefits

• Compact SMD package optimises space in electronic designs
• High input voltage range suits diverse application requirements
• Fully regulated output ensures consistent voltage supply
• Continuous short-circuit protection improves system reliability
• Remote On/Off control simplifies power management
• Complies with RoHS for environmental safety

Applications

• Powers communication equipment for consistent performance
• Ideal for industrial electronics demanding stability and efficiency
• Used in instrumentation systems requiring precise voltage
• Suitable for space-constrained devices needing surface mount modules

How do I connect it for remote control operation?

Connect an appropriate control signal to the designated pin for activation.

What is the maximum temperature it can operate under?

It operates optimally at temperatures up to +85°C without derating.

Is there a specific input fuse recommendation for this model?

A slow blow fuse rated at 1,000 mA is advised for maximum safety.

Can this module withstand high humidity environments?

Yes, it functions in relative humidity conditions of up to 95% without condensation.

How does this converter handle short-circuit situations?

It comes with continuous short-circuit protection and automatic recovery for system safety and stability.

Attribute	Value
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	Surface Mount
Isolated	Yes
Number of Outputs	1
Package	SOIC 14
Isolation Voltage	1.5kV dc
Depth	8.45mm
Length	18.9mm
Series	TDR 3WISM
Load Regulation	±1%
Minimum Temperature	-40°C
Efficiency	81%
Maximum Temperature	+85°C