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 (IDR) 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-FIMM Fixed Isolated MicroModule 793In Stock
3.600Expected 27/02/2026
Min.: 1
Mult.: 1
Reel: 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 1.790In Stock
Min.: 1
Mult.: 1
Reel: 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 1.405In Stock
Min.: 1
Mult.: 1
Reel: 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 1.080In Stock
500Expected 27/02/2026
Min.: 1
Mult.: 1
Reel: 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 395In Stock
2.500On Order
Min.: 1
Mult.: 1
Reel: 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 422In Stock
500Expected 27/02/2026
Min.: 1
Mult.: 1
Reel: 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 Lead-Time 8 Weeks
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-7 598In 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 SIP-7 Modu 5Vin 5Vout 1W 3kV 1.933In 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-4 Modu 24Vin 5Vout 1W 1.5kV 472In 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 WPME-FISM SIP-7 Modu 24Vin 5Vout 1W 3kV 147In 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 WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 61In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 24 V 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 2W 3kV 168In Stock
Min.: 1
Mult.: 1
Reel: 500

Isolated SMD/SMT 1 Output 2 W 24 V 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 75In Stock
Min.: 1
Mult.: 1

Isolated Through Hole 1 Output 2 W 24 V 5 V 400 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 4.5-5.5V Output 736In 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 4.5-5.5V Output 61In 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 4kV 10.8-13.2V Output 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 46In Stock
43Expected 27/02/2026
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 FISM THT IsoVolt 1kV 2.97-3.63V Output 38In 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 - SMD WPME-FISM 5Vin/12Vout 1w 4kV SMT
500Expected 20/03/2026
Min.: 1
Mult.: 1
Reel: 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
500Expected 20/03/2026
Min.: 1
Mult.: 1
Reel: 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
500Expected 20/03/2026
Min.: 1
Mult.: 1
Reel: 500

Isolated SMD/SMT 1 Output 1 W 24 V 12 V 84 mA Industrial
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 10.8-13.2V Output
38Expected 27/02/2026
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 1kV 21.6-26.4V Output
122Expected 27/02/2026
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 MagI3C Power Module 0.4A 3kV SIP-7 / 19.65 x 7.05 x 10.16 mm
275Expected 27/02/2026
Min.: 1
Mult.: 1

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