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 (CLP) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 5Vin 5Vout 1W 1.5kV 3.060In Stock
2.520Expected 10/16/2026
$3.481
$3.195
$2.921
$2.580
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 24Vin 5Vout 1W 3kV 528In Stock
$4.205
$3.997
$3.766
$3.349
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 12Vin/12Vout 1w 4kV SMT 346In Stock
Cut Tape
$6.192
$5.896
$5.633
$5.292
Reel
$5.018
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM 5Vin/12Vout 1w 4kV SMT 253In Stock
Cut Tape
$6.192
$5.896
$5.633
$5.292
Reel
$5.018
Min.: 1
Mult.: 1
: 500
Wurth Elektronik Power Management Modules WPME-FISM 3.3Vin/5Vout/1W/4kV 657In Stock
Cut Tape
$5.215
$4.941
$4.666
$4.622
Reel
$4.381
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 5Vin 5Vout 2W 3kV 3.772In Stock
6.500On Order
Cut Tape
$6.818
$6.346
$6.028
$5.446
Reel
$4.974
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
425Expected 10/16/2026
$4.952
$4.710
$4.469
$4.161
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 123In Stock
$7.181
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 97In Stock
$5.435
$5.160
$4.908
$4.589
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - SMD WPME-FIMM Fixed Isolated MicroModule 2.581In Stock
17.600On Order
Cut Tape
$4.117
$3.909
$3.283
Reel
$2.833
Min.: 1
Mult.: 1
: 400
Wurth Elektronik DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module 1.191In Stock
11.957On Order
Cut Tape
$4.875
$4.546
$4.304
$3.865
Reel
$3.788
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module 1.694In Stock
Cut Tape
$4.677
$4.447
$4.194
$3.733
Reel
$3.327
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 1W 3kV 1.859In Stock
Cut Tape
$4.710
$4.491
$4.238
$3.975
Reel
$3.898
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - SMD WPME-FISM SMT-8 Modu 12Vin 5Vout 2W 3kV 1.903In Stock
Cut Tape
$6.192
$5.896
$5.633
$5.029
Reel
$4.370
$4.337
Min.: 1
Mult.: 1
: 500
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 5Vin 5Vout 1W 3kV 2.577In Stock
$4.019
$3.810
$3.601
$3.261
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM Fixed Isolated SIP Module 511In Stock
$4.600
$3.832
$3.601
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
$5.841
$5.270
$4.930
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 2.97-3.63V Output 29In Stock
$7.159
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 4.5-5.5V Output 193In Stock
$5.841
$5.270
$4.930
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 4.5-5.5V Output 422In Stock
600Expected 12/4/2026
$6.116
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 10.8-13.2V Output 23In Stock
$5.841
$5.270
$4.930
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 10.8-13.2V Output 3In Stock
$6.116
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM Fixed Isolated SIP Module 24In Stock
$4.227
$4.008
$3.777
$3.481
Min.: 1
Mult.: 1
Wurth Elektronik DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 24Vin 5Vout 1W 1.5kV 514In Stock
$3.601
$3.316
$3.052
$2.822
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 196In Stock
$7.181
Min.: 1
Mult.: 1