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.

All Results (30)

Select Image Part # Mfr. Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 123In Stock
£4.91
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 24Vin 5Vout 1W 3kV 524In Stock
£2.87
£2.73
£2.58
£2.29
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 5Vin 5Vout 1W 1.5kV 5,579In Stock
£2.38
£2.18
£2.00
£1.76
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 12Vin/12Vout 1w 4kV SMT 371In Stock
Cut Tape
£4.23
£4.03
£3.85
£3.62
Reel
£3.43
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 5Vin/12Vout 1w 4kV SMT 253In Stock
Cut Tape
£4.23
£4.03
£3.85
£3.62
Reel
£3.43
Min.: 1
Mult.: 1
: 500
Wurth Elektronik Power Management Modules WPME-FISM 3.3Vin/5Vout 1W/3kV Module 84In Stock
Cut Tape
£3.71
£3.35
£2.78
Reel
£2.78
Min.: 1
Mult.: 1
: 42
Wurth Elektronik Power Management Modules WPME-FISM 3.3Vin/5Vout/1W/4kV 635In Stock
Cut Tape
£3.57
£3.38
£3.20
£3.16
Reel
£2.99
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 5Vin 5Vout 2W 3kV 6,262In Stock
4,000On Order
Cut Tape
£4.66
£4.34
£4.12
£3.73
Reel
£3.40
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 90In Stock
£3.72
£3.53
£3.35
£3.13
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - SMD WPME-FIMM Fixed Isolated MicroModule 1,455In Stock
17,200On Order
Cut Tape
£2.82
£2.67
£2.24
Reel
£1.94
Min.: 1
Mult.: 1
: 400
Wurth Elektronik DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module 1,148In Stock
11,500On Order
Cut Tape
£3.33
£3.11
£2.94
£2.65
Reel
£2.59
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module 1,694In Stock
Cut Tape
£3.20
£3.04
£2.87
£2.55
Reel
£2.28
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 1W 3kV 1,849In Stock
Cut Tape
£3.22
£3.07
£2.90
£2.72
Reel
£2.66
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 12Vin 5Vout 2W 3kV 1,843In Stock
Cut Tape
£4.23
£4.03
£3.85
£3.44
Reel
£2.99
£2.97
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 5Vin 5Vout 1W 3kV 2,269In Stock
£2.75
£2.60
£2.46
£2.23
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM Fixed Isolated SIP Module 501In Stock
£3.14
£2.62
£2.46
Min.: 1
Mult.: 1
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 389In Stock
£4.00
£3.61
£3.37
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 2.97-3.63V Output 29In Stock
£4.90
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 4.5-5.5V Output 193In Stock
£4.00
£3.61
£3.37
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 4.5-5.5V Output 402In Stock
600Expected 04/12/2026
£4.18
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 10.8-13.2V Output 23In Stock
£4.00
£3.61
£3.37
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 10.8-13.2V Output 3In Stock
£4.18
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 24Vin 5Vout 1W 1.5kV 489In Stock
£2.46
£2.27
£2.09
£1.93
Min.: 1
Mult.: 1
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 94In Stock
559On Order
£4.91
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 24Vin/12Vout 1w 4kV SMT
500Expected 06/11/2026
Cut Tape
£4.23
£4.03
£3.85
£3.62
Reel
£3.38
Min.: 1
Mult.: 1
: 500