DC/DC Converters – Mouser Japan

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	Isolation	Mounting Style	Number of Outputs	Output Power	Output Voltage-Channel 1	Output Current-Channel 1	Industry
DC/DC Converters - SMD WPME-FISM 24Vin/12Vout 1w 4kV SMT 1768812341 Wurth Elektronik 1: ¥936.8 512In Stock New Product	Mfr. Part # 1768812341 Mouser Part # 710-1768812341 New Product	Wurth Elektronik	DC/DC Converters - SMD WPME-FISM 24Vin/12Vout 1w 4kV SMT Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	512In Stock	Cut Tape ¥936.8 ¥892 ¥852.1 ¥800.6 Reel ¥752.4 View ¥739.1 ¥732.5 MouseReel Available	Min.: 1 Mult.: 1 : 500	Isolated	SMD/SMT	1 Output	1 W	12 V	84 mA	Industrial
DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 1779405311 Wurth Elektronik 1: ¥1,086.3 121In Stock	Mfr. Part # 1779405311 Mouser Part # 710-1779405311	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	121In Stock	¥1,086.3 ¥1,084.6	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	2 W	5 V	400 mA	Industrial
DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 24Vin 5Vout 1W 3kV 1779205341 Wurth Elektronik 1: ¥636.2 524In Stock	Mfr. Part # 1779205341 Mouser Part # 710-1779205341	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 24Vin 5Vout 1W 3kV Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	524In Stock	¥636.2 ¥604.6 ¥581.4 ¥548.1 ¥504.9	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 5Vin 5Vout 1W 1.5kV 1779205111 Wurth Elektronik 1: ¥526.5 4,998In Stock	Mfr. Part # 1779205111 Mouser Part # 710-1779205111	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 5Vin 5Vout 1W 1.5kV Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	4,998In Stock	¥526.5 ¥483.4 ¥441.8 ¥390.3	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - SMD WPME-FISM 12Vin/12Vout 1w 4kV SMT 1768812241 Wurth Elektronik 1: ¥936.8 371In Stock New Product	Mfr. Part # 1768812241 Mouser Part # 710-1768812241 New Product	Wurth Elektronik	DC/DC Converters - SMD WPME-FISM 12Vin/12Vout 1w 4kV SMT Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	371In Stock	Cut Tape ¥936.8 ¥892 ¥852.1 ¥800.6 Reel ¥757.4 MouseReel Available	Min.: 1 Mult.: 1 : 500	Isolated	SMD/SMT	1 Output	1 W	12 V	84 mA	Industrial
DC/DC Converters - SMD WPME-FISM 5Vin/12Vout 1w 4kV SMT 1768812141 Wurth Elektronik 1: ¥936.8 172In Stock 500Expected 2/5/2027 New Product	Mfr. Part # 1768812141 Mouser Part # 710-1768812141 New Product	Wurth Elektronik	DC/DC Converters - SMD WPME-FISM 5Vin/12Vout 1w 4kV SMT Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	172In Stock 500Expected 2/5/2027	Cut Tape ¥936.8 ¥892 ¥852.1 ¥800.6 Reel ¥757.4 MouseReel Available	Min.: 1 Mult.: 1 : 500	Isolated	SMD/SMT	1 Output	1 W	12 V	84 mA	Industrial
DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 12 Vin 5 Vout SIP-4 1779405211 Wurth Elektronik 1: ¥1,099.6 377In Stock	Mfr. Part # 1779405211 Mouser Part # 710-1779405211	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 12 Vin 5 Vout SIP-4 Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	377In Stock	¥1,099.6 ¥1,079.7 ¥1,078 ¥1,076.3	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	2 W	5 V	400 mA	Industrial
DC/DC Converters - SMD WPME-FIMM Fixed Isolated MicroModule 1769205132 Wurth Elektronik 1: ¥622.9 10,979In Stock 7,200On Order	Mfr. Part # 1769205132 Mouser Part # 710-1769205132	Wurth Elektronik	DC/DC Converters - SMD WPME-FIMM Fixed Isolated MicroModule Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	10,979In Stock 7,200On Order On Order Ship Dates Mfr. #: 1769205132 Stock: 10,979 Can Ship Immediately On Order: 3,600 Pending 3,600 Expected 11/20/2026 Factory Lead-Time: 14 Weeks	Cut Tape ¥622.9 ¥591.3 ¥496.6 Reel ¥428.5 MouseReel Available	Min.: 1 Mult.: 1 : 400	Isolated	SMD/SMT	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - SMD WPME-FISM SMT-8 Modu 5Vin 5Vout 2W 3kV 1769405141 Wurth Elektronik 1: ¥1,031.5 8,195In Stock 5,500Expected 2/19/2027	Mfr. Part # 1769405141 Mouser Part # 710-1769405141	Wurth Elektronik	DC/DC Converters - SMD WPME-FISM SMT-8 Modu 5Vin 5Vout 2W 3kV Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	8,195In Stock 5,500Expected 2/19/2027	Cut Tape ¥1,031.5 ¥960.1 ¥911.9 ¥823.9 Reel ¥752.4 MouseReel Available	Min.: 1 Mult.: 1 : 500	Isolated	SMD/SMT	1 Output	2 W	5 V	400 mA	Industrial
DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 1779405341 Wurth Elektronik 1: ¥822.2 58In Stock 150On Order	Mfr. Part # 1779405341 Mouser Part # 710-1779405341	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 24 Vin 5 Vout SIP-7 Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	58In Stock 150On Order On Order Ship Dates Mfr. #: 1779405341 Stock: 58 Can Ship Immediately On Order: 75 Expected 1/29/2027 75 Expected 2/12/2027 Factory Lead-Time: 14 Weeks	¥822.2 ¥780.7 ¥742.5 ¥694.3	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	2 W	5 V	400 mA	Industrial
DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module 1769205241 Wurth Elektronik 1: ¥707.6 1,677In Stock	Mfr. Part # 1769205241 Mouser Part # 710-1769205241	Wurth Elektronik	DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	1,677In Stock	Cut Tape ¥707.6 ¥672.7 ¥634.5 ¥564.7 Reel ¥503.3 MouseReel Available	Min.: 1 Mult.: 1 : 500	Isolated	SMD/SMT	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 1W 3kV 1769205341 Wurth Elektronik 1: ¥712.6 1,687In Stock	Mfr. Part # 1769205341 Mouser Part # 710-1769205341	Wurth Elektronik	DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 1W 3kV Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	1,687In Stock	Cut Tape ¥712.6 ¥679.3 ¥641.1 ¥601.3 Reel ¥589.7 MouseReel Available	Min.: 1 Mult.: 1 : 500	Isolated	SMD/SMT	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - SMD WPME-FISM SMT-8 Modu 12Vin 5Vout 2W 3kV 1769405241 Wurth Elektronik 1: ¥936.8 1,704In Stock	Mfr. Part # 1769405241 Mouser Part # 710-1769405241	Wurth Elektronik	DC/DC Converters - SMD WPME-FISM SMT-8 Modu 12Vin 5Vout 2W 3kV Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	1,704In Stock	Cut Tape ¥936.8 ¥892 ¥852.1 ¥760.7 Reel ¥661.1 ¥656.1 MouseReel Available	Min.: 1 Mult.: 1 : 500	Isolated	SMD/SMT	1 Output	2 W	5 V	400 mA	Industrial
DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 2W 3kV 1769405341 Wurth Elektronik 1: ¥1,189.3 310In Stock 190On Order	Mfr. Part # 1769405341 Mouser Part # 710-1769405341	Wurth Elektronik	DC/DC Converters - SMD WPME-FISM SMT-8 Modu 24Vin 5Vout 2W 3kV Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	310In Stock 190On Order	Cut Tape ¥1,189.3 ¥1,109.5 ¥1,009.9 ¥903.6 Reel ¥848.8 MouseReel Available	Min.: 1 Mult.: 1 : 500	Isolated	SMD/SMT	1 Output	2 W	5 V	400 mA	Industrial
DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 5Vin 5Vout 1W 3kV 1779205141 Wurth Elektronik 1: ¥607.9 2,255In Stock	Mfr. Part # 1779205141 Mouser Part # 710-1779205141	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FISM SIP-7 Modu 5Vin 5Vout 1W 3kV Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	2,255In Stock	¥607.9 ¥576.4 ¥544.8 ¥493.3	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - Through Hole WPME-FISM MagI3C Power Module 0.4A 3kV SIP-7 / 19.65 x 7.05 x 10.16 mm 1779405141 Wurth Elektronik 1: ¥883.7 389In Stock	Mfr. Part # 1779405141 Mouser Part # 710-1779405141	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 Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	389In Stock	¥883.7 ¥797.3 ¥745.8	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	2 W	5 V	400 mA	Industrial
DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 4.5-5.5V Output 177920511 Wurth Elektronik 1: ¥883.7 148In Stock	Mfr. Part # 177920511 Mouser Part # 710-177920511	Wurth Elektronik	DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 4.5-5.5V Output Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	148In Stock	¥883.7 ¥797.3 ¥745.8	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 10.8-13.2V Output 177920521 Wurth Elektronik 1: ¥883.7 23In Stock	Mfr. Part # 177920521 Mouser Part # 710-177920521	Wurth Elektronik	DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 10.8-13.2V Output Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	23In Stock	¥883.7 ¥797.3 ¥745.8	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - Through Hole WPME-FISM Fixed Isolated SIP Module 1779205211 Wurth Elektronik 1: ¥696 40In Stock	Mfr. Part # 1779205211 Mouser Part # 710-1779205211	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FISM Fixed Isolated SIP Module Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	40In Stock	¥696 ¥579.7 ¥544.8	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 10.8-13.2V Output 177920524 Wurth Elektronik 1: ¥925.2 3In Stock	Mfr. Part # 177920524 Mouser Part # 710-177920524	Wurth Elektronik	DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 10.8-13.2V Output Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	3In Stock	¥925.2	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 24Vin 5Vout 1W 1.5kV 1779205311 Wurth Elektronik 1: ¥544.8 414In Stock	Mfr. Part # 1779205311 Mouser Part # 710-1779205311	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FISM SIP-4 Modu 24Vin 5Vout 1W 1.5kV Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	414In Stock	¥544.8 ¥501.6 ¥461.8 ¥426.9	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - Through Hole WPME-FISM MagI3C Power Module 0.4A 1.5kV SIP-4 11.60 x 7.05 x 10x16 mm 1779405111 Wurth Elektronik 1: ¥1,086.3 79In Stock 559On Order	Mfr. Part # 1779405111 Mouser Part # 710-1779405111	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 Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	79In Stock 559On Order On Order Ship Dates Mfr. #: 1779405111 Stock: 79 Can Ship Immediately On Order: 172 Expected 12/4/2026 387 Expected 1/29/2027 Factory Lead-Time: 14 Weeks	¥1,086.3	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	2 W	5 V	400 mA	Industrial
DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module 1769205141 Wurth Elektronik 1: ¥737.5 10,984On Order	Mfr. Part # 1769205141 Mouser Part # 710-1769205141	Wurth Elektronik	DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	10,984On Order On Order Ship Dates Mfr. #: 1769205141 Stock: 0 On Order: 2,484 Expected 11/20/2026 8,500 Expected 11/27/2026 Factory Lead-Time: 14 Weeks	Cut Tape ¥737.5 ¥687.7 ¥651.1 ¥584.7 Reel ¥573 View ¥514.9 ¥496.6 MouseReel Available	Min.: 1 Mult.: 1 : 500	Isolated	SMD/SMT	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 4.5-5.5V Output 177920514 Wurth Elektronik 1: ¥925.2 597Expected 12/4/2026	Mfr. Part # 177920514 Mouser Part # 710-177920514	Wurth Elektronik	DC/DC Converters - Through Hole FISM THT IsoVolt 4kV 4.5-5.5V Output Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	597Expected 12/4/2026	¥925.2	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	1 W	5 V	200 mA	Industrial
DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 21.6-26.4V Output 177920531 Wurth Elektronik 1: ¥892 1,119On Order	Mfr. Part # 177920531 Mouser Part # 710-177920531	Wurth Elektronik	DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 21.6-26.4V Output Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	1,119On Order On Order Ship Dates Mfr. #: 177920531 Stock: 0 On Order: 699 Expected 1/29/2027 420 Expected 2/15/2027 Factory Lead-Time: 26 Weeks	¥892 ¥805.6 ¥803.9 ¥747.5 ¥745.8	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	1 W	5 V	200 mA	Industrial

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Fixed Isolated Modules

Types of DC/DC Converters

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