May 17, 2025
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In today's compact electronic designs, reliable power conversion with minimal footprint is critical. The TUD-0505A from Diwell Electronics meets this demand with its dual-output ±5V 1W isolated DC-DC converter, offering 1.5kV isolation and 73% efficiency. Ideal for commercial ITE applications, this through-hole module ensures stable power delivery in space-constrained environments. Continue reading to explore its technical advantages, selection criteria, and how it compares to alternatives in the market.
The TUD-0505A is a 1W isolated DC-DC converter providing dual outputs of +5V and -5V at 100mA each. Its 14-DIP package (20.3mm × 10.2mm × 7.1mm) suits board-level designs requiring bipolar voltage rails.
| Parameter | Specification | Source |
|---|---|---|
| Input Voltage Range | 4.5V – 5.5V | Diwell Datasheet (TU Series) |
| Output Voltage | ±5V (100mA each) | |
| Isolation Voltage | 1.5kV | |
| Efficiency | 73% (typical) | |
| Operating Temperature | -25°C to +71°C | |
| Package | 14-DIP Module, 6 Leads |
Consider the TUD-0505A when:
Bipolar voltage is needed (e.g., op-amp circuits, data acquisition systems).
Isolation is required to protect sensitive components (1.5kV barrier).
Size constraints exist (compact 20.3mm × 10.2mm footprint).
For higher power needs, consider Diwell’s TUD-0512A (1W, ±12V) or non-isolated alternatives for cost-sensitive designs.
Example 1: Sensor Interface Module
Used in industrial sensors requiring ±5V for analog signal conditioning, leveraging its isolation to reduce ground loop noise.
Example 2: Test Equipment
Powers precision measurement circuits where stable bipolar rails are critical for ADC/DAC performance.
According to MarketsandMarkets (2023), the DC-DC converter market is projected to grow at 6.8% CAGR, driven by demand for miniaturized power solutions in IoT and industrial automation. The TUD-0505A addresses this trend with its DIP-form factor and dual-output capability.
Emerging requirements include:
Higher efficiency (>80%) for energy-sensitive applications.
Wider temperature ranges (-40°C to +85°C) for harsh environments.
Integration of digital control (e.g., PMBus compatibility).
| Model | TUD-0505A | Competitor A | Competitor B |
|---|---|---|---|
| Output | ±5V@100mA | +5V@200mA | ±5V@50mA |
| Isolation | 1.5kV | None | 1kV |
| Efficiency | 73% | 68% | 75% |
| Price (1k units) | $3.20 | $2.80 | $3.50 |
Why choose TUD-0505A? Balanced performance with full isolation at a mid-range price point.
Q1: Can the TUD-0505A operate at full load across its temperature range?
A: Yes, per datasheet specifications, it delivers 1W from -25°C to +71°C.
Q2: Is external filtering required for noise-sensitive applications?
A: Recommended. Add 10μF ceramic capacitors at input/output for optimal ripple performance.
Q3: What’s the typical startup time?
A: ~20ms with 5V input and 10mA load (measured per EN 61204 standards).
Q4: Are there SMD versions available?
A: Not in this series. For SMD, consider Diwell’s TSM-0505 (similar specs in SOP-8).
Q5: What certifications does it hold?
A: Complies with IEC/EN 61204 (industrial power standards), though agency approvals vary by region.
Diwell is expected to release a 2W version (TUD-0505B) in 2025, featuring enhanced thermal performance and 80% efficiency, responding to market demands for higher power density.
The TUD-0505A offers a reliable, isolated power solution for applications requiring ±5V rails. Its compact design, verified performance, and competitive pricing make it a standout choice for commercial electronics. For pricing or technical support, contact our team at [email protected].
