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.

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Wurth Elektronik DC/DC Converters - SMD WPME-FISM 5Vin/12Vout 1w 4kV SMT
Datasheet
275In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 5 V 12 V 84 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 12Vin/12Vout 1w 4kV SMT
Datasheet
330In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 12 V 12 V 84 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 24Vin/12Vout 1w 4kV SMT
Datasheet
350In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 24 V 12 V 84 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FIMM Fixed Isolated MicroModule
Datasheet
3.307In Stock
2.400Expected 12/06/2026
MouseReel Available
Min.: 1
Mult.: 1
: 400

Isolated SMD/SMT 1 Output 1 W 5 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module
Datasheet
800In Stock
2.500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 5 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module
Datasheet
1.088In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 12 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 1W 3kV
Datasheet
1.380In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 1 W 24 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 5Vin 5Vout 2W 3kV
Datasheet
1.029In Stock
4.500Expected 24/07/2026
MouseReel Available
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 2 W 5 V 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 12Vin 5Vout 2W 3kV
Datasheet
978In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 2 W 12 V 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 5Vin 5Vout 1W 1.5kV
Datasheet
1.273In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 5Vin 5Vout 1W 3kV
Datasheet
900In Stock
1.950On Order
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 12 Vin 5 Vout SIP-4
Datasheet
291In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 12 V 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 12 Vin 5 Vout SIP-7
Datasheet
509In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 12 V 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 2W 3kV
Datasheet
615In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Isolated SMD/SMT 1 Output 2 W 24 V 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM Fixed Isolated SIP Module
Datasheet
99In Stock
257On Order
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 12 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 24Vin 5Vout 1W 1.5kV
Datasheet
302In Stock
215Expected 05/06/2026
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 24 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 24Vin 5Vout 1W 3kV
Datasheet
262In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 24 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 4.5-5.5V Output
Datasheet
628In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 5 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 2.97-3.63V Output
Datasheet
33In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 3.3 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 4.5-5.5V Output
Datasheet
82In Stock
84Expected 05/06/2026
Min.: 1
Mult.: 1

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

Isolated Through Hole 1 Output 1 W 12 V 5 V 200 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 10.8-13.2V Output
Datasheet
9In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 1 W 12 V 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
Datasheet
11In Stock
129On Order
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 5 V 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
Datasheet
128In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 5 V 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7
Datasheet
133In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 24 V 5 V 400 mA Industrial