Characteristics
- Simple design (no transformer design know how required)
- LGA-7 package for easy manufacturing and prototyping
- Stand-alone solution (CIN and COUT integrated, no external components)
- Simple functional isolation for overvoltage protection, avoiding ground loops, ground shift and noise in signal path or sensor systems
- Industrial standard package and pin configuration
- Low conducted and radiated EMI (compliant to EN55032 class B / CISPR-32)
- UL62368 approval
- 3 solder cycles supported
Applications
- Data acquisition
- Test and measurement systems
- Interface and microcontroller supply
- Industrial controls
Products
Order Code | Datasheet | Simulation | Downloads | Status | VIN (V) | VOUT (V) | PO (W) | Short Circuit Protection | VISO (V) | Type of Insulation | L (mm) | W (mm) | H (mm) | Evaluation Kit | Samples | |
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![]() | 1769205132 | SPEC | 8 files | New i| Product is new in our portfolio and production is active. Expected lifetime: >10 years. | 4.5 - 5.5 | 5 | 1 | continuous | 3000 | Functional | 9 | 7 | 3.1 | 1789205132 |
Order Code | Datasheet | Simulation | |
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![]() | 1769205132 | SPEC |
Samples |
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Order Code | Datasheet | Simulation | Downloads | Status | VIN (V) | VOUT (V) | PO (W) | Short Circuit Protection | VISO (V) | Type of Insulation | L (mm) | W (mm) | H (mm) | Evaluation Kit | Samples |
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COMPACT. EFFICIENT. SILENT.
Isolated MicroModule by Würth Elektronik
COMPACT. EFFICIENT. SILENT.
Isolated MicroModule by Würth Elektronik
The MagI³C FIMM Fixed Isolated MicroModule series combines the features of an isolated power module with those of a classic MicroModule. It is realized in an LGA-7 housing and impresses with its miniaturized dimensions. The 1 W output power can be provided up to an ambient temperature of TA=100 °C without derating. Features like continuous short circuit protection (SCP) and dynamic power boost up to 300 mA for 500 ms ensures a robust performance for industrial applications. The module complies with EN55032 (CISPR-32) class B conducted and radiated emissions standard and requieres no external components for operation.

Compact, Efficient and Robust

The FIMM module is particularly suitable for applications sensitive to supply interference, such as analog low-frequency circuits and relay-controlled circuits. The low para-sitic capacitance between the primary and secondary sides ensures a high degree of decoupling from high-frequency interference. Furthermore, this low parasitic capacitance mitigates common-mode interference propagation from the primary switching side to the secondary side of the converter.

Compared to regular, same-sized transformers, the FIMM feature less than 10% of the parasitic capacitance, as required by state-of-the-art isolated SMT power modules.

With its compact size the FIMM only needs 50 % of the space compared to conventional SMT-8 Modules. Combined with the functional isolation of 3000 V it is the perfect solution for space-constrained applications in the industrial sector providing galvanic isolated power supply.

High and stable efficiency over the complete output current range. Due to its high efficiency of up to 91 % it supports a “cool design” and can therefore be used in an operating temperature range from -40 °C up to 100 °C without any derating. With the optimal temperature range for any industrial application and the integration of all core components it is reducing design effort and complexity to a minimum.

Derating curves with all possible operating modes. With the power boost feature additional current could be provided allowing the module to fulfil the demands in:
- Unforcasted increases in load demands
- Monotonic charging of capacitive loads
- Backup power for momentary demands of the application
Service & Support
Do you have questions or suggestions on the topics of design-in support, PCB layout review, EMC filters or thermal design? We will be happy to help you! With just a few details, we can answer your enquiry.

Design-In Support
- Product related & application specific support by hotline
- Troubleshooting and individual design solutions

Layout Review Support
- Individual review of customer layouts
- Reference layout given in every datasheet

EMC Filter Design Support
- Solution for conducted & radiated emissions
- Tested filter configurations for EN55032 / CISPR-32 class B compliance
- Real EMI behavior shown as well as gain and phase response of EMI filter shown on REDEXPERT

Thermal Design Support
- Temperature distribution
- Total power handling
- Thermal behaviour of power modulesas well as interactive power loss chart on shown on REDEXPERT