DC/DC Converters – Mouser Singapore

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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 (SGD) 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 - Through Hole WPME-FISM SIP-7 Modu 24Vin 5Vout 1W 3kV 1779205341 Wurth Elektronik 1: $5.21 528In Stock	Mfr. Part No. 1779205341 Mouser Part No 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	528In Stock	$5.21 $4.95 $4.66 $4.15	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: $4.31 5,580In Stock	Mfr. Part No. 1779205111 Mouser Part No 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	5,580In Stock	$4.31 $3.96 $3.62 $3.20	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: $7.67 346In Stock New Product	Mfr. Part No. 1768812241 Mouser Part No 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	346In Stock	Cut Tape $7.67 $7.30 $6.98 $6.56 Reel $6.22 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: $7.67 253In Stock New Product	Mfr. Part No. 1768812141 Mouser Part No 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	253In Stock	Cut Tape $7.67 $7.30 $6.98 $6.56 Reel $6.22 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 SMT-8 Modu 5Vin 5Vout 2W 3kV 1769405141 Wurth Elektronik 1: $8.45 3,772In Stock 6,500On Order	Mfr. Part No. 1769405141 Mouser Part No 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	3,772In Stock 6,500On Order On Order Ship Dates Mfr. No: 1769405141 Stock: 3,772 Can Dispatch Immediately On Order: 2,500 Pending 4,000 Expected 16/10/2026 Factory Lead Time: 14 Weeks	Cut Tape $8.45 $7.86 $7.47 $6.75 Reel $6.16 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 12 Vin 5 Vout SIP-7 1779405241 Wurth Elektronik 1: $6.13 238In Stock 425Expected 23/10/2026	Mfr. Part No. 1779405241 Mouser Part No 710-1779405241	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FISM 0.4A 3kVol 12 Vin 5 Vout SIP-7 Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	238In Stock 425Expected 23/10/2026	$6.13 $5.83 $5.54 $5.15	Min.: 1 Mult.: 1	Isolated	Through Hole	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 1779405311 Wurth Elektronik 1: $8.89 123In Stock	Mfr. Part No. 1779405311 Mouser Part No 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	123In Stock	$8.89	Min.: 1 Mult.: 1	Isolated	Through Hole	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: $6.73 92In Stock	Mfr. Part No. 1779405341 Mouser Part No 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	92In Stock	$6.73 $6.39 $6.08 $5.68	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: $5.10 1,065In Stock 17,600On Order	Mfr. Part No. 1769205132 Mouser Part No 710-1769205132	Wurth Elektronik	DC/DC Converters - SMD WPME-FIMM Fixed Isolated MicroModule Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	1,065In Stock 17,600On Order On Order Ship Dates Mfr. No: 1769205132 Stock: 1,065 Can Dispatch Immediately On Order: 9,600 Expected 16/10/2026 8,000 Expected 6/11/2026 Factory Lead Time: 14 Weeks	Cut Tape $5.10 $4.84 $4.07 Reel $3.51 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 Fixed Isolated SMT Module 1769205141 Wurth Elektronik 1: $6.04 1,191In Stock 11,957On Order	Mfr. Part No. 1769205141 Mouser Part No 710-1769205141	Wurth Elektronik	DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	1,191In Stock 11,957On Order On Order Ship Dates Mfr. No: 1769205141 Stock: 1,191 Can Dispatch Immediately On Order: 457 Pending 3,000 Expected 20/11/2026 8,500 Expected 27/11/2026 Factory Lead Time: 14 Weeks	Cut Tape $6.04 $5.63 $5.33 $4.79 Reel $4.69 View $4.22 $4.07 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 Fixed Isolated SMT Module 1769205241 Wurth Elektronik 1: $5.79 1,694In Stock	Mfr. Part No. 1769205241 Mouser Part No 710-1769205241	Wurth Elektronik	DC/DC Converters - SMD WPME-FISM Fixed Isolated SMT Module Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	1,694In Stock	Cut Tape $5.79 $5.51 $5.20 $4.62 Reel $4.12 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: $5.83 1,859In Stock	Mfr. Part No. 1769205341 Mouser Part No 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	1,859In Stock	Cut Tape $5.83 $5.56 $5.25 $4.92 Reel $4.83 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: $7.67 1,903In Stock	Mfr. Part No. 1769405241 Mouser Part No 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	1,903In Stock	Cut Tape $7.67 $7.30 $6.98 $6.23 Reel $5.41 $5.37 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: $4.98 2,269In Stock	Mfr. Part No. 1779205141 Mouser Part No 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	2,269In Stock	$4.98 $4.72 $4.46 $4.04	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: $5.70 501In Stock	Mfr. Part No. 1779205211 Mouser Part No 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	501In Stock	$5.70 $4.75 $4.46	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: $7.24 389In Stock	Mfr. Part No. 1779405141 Mouser Part No 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	$7.24 $6.53 $6.11	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 2.97-3.63V Output 177920501 Wurth Elektronik 1: $8.87 29In Stock	Mfr. Part No. 177920501 Mouser Part No 710-177920501	Wurth Elektronik	DC/DC Converters - Through Hole FISM THT IsoVolt 1kV 2.97-3.63V Output Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	29In Stock	$8.87	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 4.5-5.5V Output 177920511 Wurth Elektronik 1: $7.24 193In Stock	Mfr. Part No. 177920511 Mouser Part No 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	193In Stock	$7.24 $6.53 $6.11	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 4.5-5.5V Output 177920514 Wurth Elektronik 1: $7.58 422In Stock 600Expected 4/12/2026	Mfr. Part No. 177920514 Mouser Part No 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	422In Stock 600Expected 4/12/2026	$7.58	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: $7.24 23In Stock	Mfr. Part No. 177920521 Mouser Part No 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	$7.24 $6.53 $6.11	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: $7.58 3In Stock	Mfr. Part No. 177920524 Mouser Part No 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	$7.58	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 1779205241 Wurth Elektronik 1: $5.24 24In Stock	Mfr. Part No. 1779205241 Mouser Part No 710-1779205241	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FISM Fixed Isolated SIP Module Learn More about Wurth Elektronik wurth fixed isolated modules	Datasheet	24In Stock	$5.24 $4.96 $4.68 $4.31	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: $4.46 494In Stock	Mfr. Part No. 1779205311 Mouser Part No 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	494In Stock	$4.46 $4.11 $3.78 $3.50	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: $8.89 94In Stock 172Expected 4/1/2027	Mfr. Part No. 1779405111 Mouser Part No 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	94In Stock 172Expected 4/1/2027	$8.89	Min.: 1 Mult.: 1	Isolated	Through Hole	1 Output	2 W	5 V	400 mA	Industrial
DC/DC Converters - SMD WPME-FISM 24Vin/12Vout 1w 4kV SMT 1768812341 Wurth Elektronik 1: $7.67 500Expected 6/11/2026 New Product	Mfr. Part No. 1768812341 Mouser Part No 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	500Expected 6/11/2026	Cut Tape $7.67 $7.30 $6.98 $6.56 Reel $6.12 View $5.93 $5.85 MouseReel Available	Min.: 1 Mult.: 1 : 500	Isolated	SMD/SMT	1 Output	1 W	12 V	84 mA	Industrial

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