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 (USD) 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
$6.54
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 24Vin 5Vout 1W 3kV 522In Stock
$3.83
$3.64
$3.43
$3.05
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 5Vin 5Vout 1W 1.5kV 5,528In Stock
$3.17
$2.91
$2.66
$2.35
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 12Vin/12Vout 1w 4kV SMT 371In Stock
Cut Tape
$5.64
$5.37
$5.13
$4.82
Reel
$4.57
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 5Vin/12Vout 1w 4kV SMT 253In Stock
Cut Tape
$5.64
$5.37
$5.13
$4.82
Reel
$4.57
Min.: 1
Mult.: 1
: 500
Wurth Elektronik Power Management Modules WPME-FISM 3.3Vin/5Vout 1W/3kV Module 84In Stock
Cut Tape
$4.94
$4.47
$3.71
Reel
$3.71
Min.: 1
Mult.: 1
: 42
Wurth Elektronik Power Management Modules WPME-FISM 3.3Vin/5Vout/1W/4kV 635In Stock
Cut Tape
$4.75
$4.50
$4.25
$4.21
Reel
$3.99
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 5Vin 5Vout 2W 3kV 4,262In Stock
4,000On Order
Cut Tape
$6.21
$5.78
$5.49
$4.96
Reel
$4.53
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 12 Vin 5 Vout SIP-7 238In Stock
1,100On Order
$4.51
$4.29
$4.07
$3.79
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 90In Stock
$4.95
$4.70
$4.47
$4.18
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - SMD WPME-FIMM Fixed Isolated MicroModule 1,425In Stock
17,200On Order
Cut Tape
$3.75
$3.56
$2.99
Reel
$2.58
Min.: 1
Mult.: 1
: 400
Wurth Elektronik DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module 1,123In Stock
11,500On Order
Cut Tape
$4.44
$4.14
$3.92
$3.52
Reel
$3.45
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module 1,694In Stock
Cut Tape
$4.26
$4.05
$3.82
$3.40
Reel
$3.03
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 1W 3kV 1,839In Stock
Cut Tape
$4.29
$4.09
$3.86
$3.62
Reel
$3.55
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
$5.64
$5.37
$5.13
$4.58
Reel
$3.98
$3.95
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 5Vin 5Vout 1W 3kV 2,269In Stock
$3.66
$3.47
$3.28
$2.97
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM Fixed Isolated SIP Module 501In Stock
$4.19
$3.49
$3.28
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
$5.32
$4.80
$4.49
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 2.97-3.63V Output 29In Stock
$6.52
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 4.5-5.5V Output 193In Stock
$5.32
$4.80
$4.49
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 4.5-5.5V Output 402In Stock
600Expected 12/4/2026
$5.57
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 10.8-13.2V Output 23In Stock
$5.32
$4.80
$4.49
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 10.8-13.2V Output 3In Stock
$5.57
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 24Vin 5Vout 1W 1.5kV 461In Stock
$3.28
$3.02
$2.78
$2.57
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
$6.54
Min.: 1
Mult.: 1