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MagI³C FDSM Fixed Step Down Regulator Modules

Würth Elektronik MagI³C FDSM Fixed Step-Down Regulator Modules are fully integrated, fixed-output voltage DC/DC power supplies. These modules combine the switching power stage, control circuitry, inductor, and input and output capacitors in one package. The FDSM modules do not require any external components for operation. The standard THT package allows easy assembly and is pin-compatible with LM78 linear regulators. The modules comply with the low-noise electromagnetic emission norm EN 55022 class B. These FDSM modules provide peak efficiency up to 95% and a fixed output voltage of 3.3V or 5V. Ideal applications include point-of-load, replacements for linear regulators, interface and microcontroller supplies, and general-purpose supplies.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.
Power Management Modules WPME-FDSM 9-74.5Vin 3.3Vout 1A Module 173010375 Wurth Elektronik 1: S/ 29.89 88In Stock New Product	Mfr. Part # 173010375 Mouser Part # 710-173010375 New Product	Wurth Elektronik	Power Management Modules WPME-FDSM 9-74.5Vin 3.3Vout 1A Module Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	88In Stock	Cut Tape S/ 29.89 Reel S/ 29.89 S/ 29.86 MouseReel Available	Min.: 1 Mult.: 1 : 44
Power Management Modules WPME-FDSM 9-74.5Vin/5Vout 1A Module 173010575 Wurth Elektronik 1: S/ 29.89 53In Stock New Product	Mfr. Part # 173010575 Mouser Part # 710-173010575 New Product	Wurth Elektronik	Power Management Modules WPME-FDSM 9-74.5Vin/5Vout 1A Module Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	53In Stock	Cut Tape S/ 29.89 Reel S/ 29.89 S/ 29.86 MouseReel Available	Min.: 1 Mult.: 1 : 44
Power Management Modules WPME-FDSM 8-36Vin/5Vout/2.0A 173020536 Wurth Elektronik 1: S/ 29.58 419In Stock New Product	Mfr. Part # 173020536 Mouser Part # 710-173020536 New Product	Wurth Elektronik	Power Management Modules WPME-FDSM 8-36Vin/5Vout/2.0A Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	419In Stock	S/ 29.58 S/ 28.22 S/ 28.18	Min.: 1 Mult.: 1
Power Management Modules WPME-FDSM 16-36Vin/12Vout/2.0A 173021236 Wurth Elektronik 1: S/ 30.36 270In Stock New Product	Mfr. Part # 173021236 Mouser Part # 710-173021236 New Product	Wurth Elektronik	Power Management Modules WPME-FDSM 16-36Vin/12Vout/2.0A Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	270In Stock	S/ 30.36 S/ 30.32	Min.: 1 Mult.: 1
Power Management Modules WPME-FDSM 6-36Vin/3.3Vout/2.0A 173020336 Wurth Elektronik 1: S/ 30.36 100In Stock New Product	Mfr. Part # 173020336 Mouser Part # 710-173020336 New Product	Wurth Elektronik	Power Management Modules WPME-FDSM 6-36Vin/3.3Vout/2.0A Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	100In Stock	S/ 30.36 S/ 30.32	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole FDSM THT 3.3V 1A 6-36V Input 173010335 Wurth Elektronik 1: S/ 25.15 2,551In Stock	Mfr. Part # 173010335 Mouser Part # 710-173010335	Wurth Elektronik	DC/DC Converters - Through Hole FDSM THT 3.3V 1A 6-36V Input Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	2,551In Stock	S/ 25.15 S/ 23.78 S/ 22.38	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole FDSM THT 5V 1A 8-42V Input 173010542 Wurth Elektronik 1: S/ 62.94 1,107In Stock 798Expected 11/13/2026	Mfr. Part # 173010542 Mouser Part # 710-173010542	Wurth Elektronik	DC/DC Converters - Through Hole FDSM THT 5V 1A 8-42V Input Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	1,107In Stock 798Expected 11/13/2026	S/ 62.94	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole WPME-FDSM Fixed Step Down Regulator Module 173010535 Wurth Elektronik 1: S/ 25.15 2,038In Stock 43On Order	Mfr. Part # 173010535 Mouser Part # 710-173010535	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FDSM Fixed Step Down Regulator Module Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	2,038In Stock 43On Order	S/ 25.15 S/ 23.78 S/ 22.38	Min.: 1 Mult.: 1
Power Management Modules FDSM 16-36Vin / 12Vout / 1A 173011235 Wurth Elektronik 1: S/ 20.05 1,101In Stock	Mfr. Part # 173011235 Mouser Part # 710-173011235	Wurth Elektronik	Power Management Modules FDSM 16-36Vin / 12Vout / 1A Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	1,101In Stock	S/ 20.05 S/ 18.37 S/ 17.79	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole FDSM THT 3.3V 0.5A 4.75-36V Input 173950336 Wurth Elektronik 1: S/ 24.09 1,048In Stock 688Expected 11/16/2026	Mfr. Part # 173950336 Mouser Part # 710-173950336	Wurth Elektronik	DC/DC Converters - Through Hole FDSM THT 3.3V 0.5A 4.75-36V Input Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	1,048In Stock 688Expected 11/16/2026	S/ 24.09 S/ 22.73 S/ 21.29 S/ 21.18	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole MagI3C-FDSM Fixed Step Down Regulator Module, SIP-3 Type F 173950536 Wurth Elektronik 1: S/ 24.09 2,117In Stock	Mfr. Part # 173950536 Mouser Part # 710-173950536	Wurth Elektronik	DC/DC Converters - Through Hole MagI3C-FDSM Fixed Step Down Regulator Module, SIP-3 Type F Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	2,117In Stock	S/ 24.09 S/ 22.73 S/ 21.29 S/ 21.18	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole WPME-FDSM Fixed Step Down Regulator Module 173950575 Wurth Elektronik 1: S/ 18.37 476In Stock	Mfr. Part # 173950575 Mouser Part # 710-173950575	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FDSM Fixed Step Down Regulator Module Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	476In Stock	S/ 18.37 S/ 17.79	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole FDSM THT 5V 0.5A 7-28V Input 173950578 Wurth Elektronik 1: S/ 28.22 599In Stock	Mfr. Part # 173950578 Mouser Part # 710-173950578	Wurth Elektronik	DC/DC Converters - Through Hole FDSM THT 5V 0.5A 7-28V Input Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	599In Stock	S/ 28.22	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole WPME-FDSM Fixed Step Down Reg MagI3C Power Module 0.5A SIP-3 11.5 x 9.0 x 17.5mm 173951275 Wurth Elektronik 1: S/ 18.80 317In Stock 357On Order	Mfr. Part # 173951275 Mouser Part # 710-173951275	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FDSM Fixed Step Down Reg MagI3C Power Module 0.5A SIP-3 11.5 x 9.0 x 17.5mm Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	317In Stock 357On Order On Order Ship Dates Mfr. #: 173951275 Stock: 317 Can Ship Immediately On Order: 99 Expected 11/11/2026 258 Expected 11/20/2026 Factory Lead-Time: 14 Weeks	S/ 18.80	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole FDSM THT 3.3V 1A 7-42V Input 173010342 Wurth Elektronik 1: S/ 63.91 23In Stock 84Expected 11/10/2026	Mfr. Part # 173010342 Mouser Part # 710-173010342	Wurth Elektronik	DC/DC Converters - Through Hole FDSM THT 3.3V 1A 7-42V Input Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	23In Stock 84Expected 11/10/2026	S/ 63.91 S/ 63.88 S/ 59.56	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole FDSM THT 3.3V 1A 7-28V Input 173010378 Wurth Elektronik 1: S/ 30.13 162In Stock	Mfr. Part # 173010378 Mouser Part # 710-173010378	Wurth Elektronik	DC/DC Converters - Through Hole FDSM THT 3.3V 1A 7-28V Input Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	162In Stock	S/ 30.13	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole FDSM THT 5V 1A 8-28V Input 173010578 Wurth Elektronik 1: S/ 33.59 65In Stock 3,402Expected 11/10/2026	Mfr. Part # 173010578 Mouser Part # 710-173010578	Wurth Elektronik	DC/DC Converters - Through Hole FDSM THT 5V 1A 8-28V Input Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	65In Stock 3,402Expected 11/10/2026	S/ 33.59	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole WPME-FDSM Fixed Step Down Reg Module MagI3C 0.5 A SIP-3 11.5 x 9.0 x 17.5 mm 173950375 Wurth Elektronik 1: S/ 18.84 170In Stock	Mfr. Part # 173950375 Mouser Part # 710-173950375	Wurth Elektronik	DC/DC Converters - Through Hole WPME-FDSM Fixed Step Down Reg Module MagI3C 0.5 A SIP-3 11.5 x 9.0 x 17.5 mm Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	170In Stock	S/ 18.84	Min.: 1 Mult.: 1
DC/DC Converters - Through Hole FDSM THT 3.3V 0.5A 6-28V Input 173950378 Wurth Elektronik 1: S/ 28.03 415Expected 11/27/2026	Mfr. Part # 173950378 Mouser Part # 710-173950378	Wurth Elektronik	DC/DC Converters - Through Hole FDSM THT 3.3V 0.5A 6-28V Input Learn More about Wurth Elektronik wurth fdsm power modules	Datasheet	415Expected 11/27/2026	S/ 28.03 S/ 27.21	Min.: 1 Mult.: 1