Fixed Isolated Modules

Würth Elektronik Fixed Isolated Modules offer fixed input voltages of 3.3V/5V/12V/24V and a fixed 5V output voltage. These devices are suitable for applications in interface isolation/communication (RS232, RS485, CAN) to eliminate ground loops. The MagI3C modules operate at a typical 24V to 5V conversion at 0.2A, achieving 80% efficiency for SIP-4 and 81% for SIP-7. The FISM series offers fixed output voltage, fully integrated DC/DC power supplies. These devices require no external components for operation, which reduces design effort and keeps complexity to a minimum. The Würth MagI3C modules integrate the switching power stage, inductor, input, and output capacitors in one package. These modules comply with the low-noise electromagnetic emission norm EN 55022 class B. Approvals include IEC/EN60950-1, 2nd Edition; UL60950-1, 2nd Edition; and CSA C22.2 No. 60950-1-07, 2nd Edition.

Types of DC/DC Converters

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Results: 28
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS Isolation Mounting Style Number of Outputs Output Power Input Voltage, Nominal Output Voltage-Channel 1 Output Current-Channel 1 Industry
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 12Vin/12Vout 1w 4kV SMT 363In Stock
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 12 V 84 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 5Vin/12Vout 1w 4kV SMT 238In Stock
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 12 V 84 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 24Vin/12Vout 1w 4kV SMT 75In Stock
500Expected 10/26/2026
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 12 V 84 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FIMM Fixed Isolated MicroModule 1.091In Stock
9.200On Order
Min.: 1
Mult.: 1
: 400

Isolated SMD/SMT 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module 954In Stock
1.000Expected 10/26/2026
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 5Vin 5Vout 2W 3kV 702In Stock
4.500Expected 7/31/2026
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 2 W 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 2W 3kV 553In Stock
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 2 W 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 5Vin 5Vout 1W 1.5kV 877In Stock
1.763Expected 7/31/2026
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 5Vin 5Vout 1W 3kV 783In Stock
1.950On Order
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 12 Vin 5 Vout SIP-4 266In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 24Vin 5Vout 1W 1.5kV 328In Stock
215On Order
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 24Vin 5Vout 1W 3kV 203In Stock
325Expected 8/14/2026
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 128In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 179In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 2.97-3.63V Output 29In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 4.5-5.5V Output 124In Stock
84Expected 7/31/2026
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 4.5-5.5V Output 487In Stock
600Expected 11/27/2026
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 10.8-13.2V Output 28In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM Fixed Isolated SIP Module 29In Stock
516Expected 8/7/2026
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 10.8-13.2V Output 9In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 21.6-26.4V Output 263In Stock
252Expected 7/31/2026
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM MagI3C Power Module 0.4A 1.5kV SIP-4 11.60 x 7.05 x 10x16 mm 15In Stock
301On Order
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM MagI3C Power Module 0.4A 3kV SIP-7 / 19.65 x 7.05 x 10.16 mm 51In Stock
350On Order
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module
4.857On Order
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 1W 3kV
1.927Expected 8/21/2026
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 5 V 200 mA Industrial