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.

Results: 13
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Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
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Wurth Elektronik DC/DC Converters - Through Hole FDSM THT 3.3V 1A 7-42V Input
Datasheet
101In Stock
Min.: 1
Mult.: 1

Non-Isolated 1 Output 3.3 W 3.3 V 1 A SIP-3 11.6 mm (0.457 in) 8.5 mm (0.335 in) 10.5 mm (0.413 in) Industrial + 85 C - 40 C MagI3C-FDSM
Wurth Elektronik DC/DC Converters - Through Hole WPME-FDSM Fixed Step Down Regulator Module
Datasheet
483In Stock
1,290On Order
Min.: 1
Mult.: 1

Non-Isolated 1 Output 5 V 1 A SIP-3 11.6 mm (0.457 in) 10.4 mm (0.409 in) 8 mm (0.315 in) Industrial + 85 C - 40 C MagI3C-FDSM
Wurth Elektronik DC/DC Converters - Through Hole FDSM THT 3.3V 0.5A 4.75-36V Input
Datasheet
1,151In Stock
688Expected 23/10/2026
Min.: 1
Mult.: 1

Non-Isolated 1 Output 3.3 V 500 mA SIP-3 11.6 mm (0.457 in) 10.6 mm (0.417 in) 7.55 mm (0.297 in) Industrial + 85 C - 40 C MagI3C-FDSM
Wurth Elektronik DC/DC Converters - Through Hole MagI3C-FDSM Fixed Step Down Regulator Module, SIP-3 Type F
Datasheet
1,300In Stock
989Expected 02/10/2026
Min.: 1
Mult.: 1

Non-Isolated 1 Output 5 V 500 mA SIP-3 11.6 mm (0.457 in) 7.5 mm (0.295 in) 10.16 mm (0.4 in) Industrial + 85 C - 40 C MagI3C-FDSM
Wurth Elektronik DC/DC Converters - Through Hole WPME-FDSM Fixed Step Down Regulator Module
Datasheet
321In Stock
210Expected 07/10/2026
Min.: 1
Mult.: 1

Non-Isolated 1 Output 5 V 500 mA 11.5 mm (0.453 in) 9 mm (0.354 in) 17.5 mm (0.689 in) Industrial + 85 C - 40 C WPME-FDSM
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
Datasheet
598In Stock
Min.: 1
Mult.: 1

Non-Isolated 1 Output 12 V 500 mA SIP-3 11.5 mm (0.453 in) 8.5 mm (0.335 in) 17.5 mm (0.689 in) Industrial + 85 C - 40 C WPME-FDSM
Wurth Elektronik DC/DC Converters - Through Hole FDSM THT 3.3V 1A 7-28V Input
Datasheet
89In Stock
84Expected 16/10/2026
Min.: 1
Mult.: 1

Non-Isolated 1 Output 3.3 W 3.3 V 1 A SIP-3 11.6 mm (0.457 in) 8.5 mm (0.335 in) 10.5 mm (0.413 in) Industrial + 85 C - 40 C MagI3C-FDSM
Wurth Elektronik DC/DC Converters - Through Hole FDSM THT 5V 1A 8-42V Input
Datasheet
9In Stock
1,806On Order
Min.: 1
Mult.: 1

Non-Isolated 1 Output 5 W 5 V 1 A SIP-3 11.6 mm (0.457 in) 8.5 mm (0.335 in) 10.5 mm (0.413 in) Industrial + 85 C - 40 C MagI3C-FDSM
Wurth Elektronik DC/DC Converters - Through Hole FDSM THT 5V 1A 8-28V Input
Datasheet
17In Stock
3,654On Order
Min.: 1
Mult.: 1

Non-Isolated 1 Output 5 W 5 V 1 A SIP-3 11.6 mm (0.457 in) 8.5 mm (0.335 in) 10.5 mm (0.413 in) Industrial + 85 C - 40 C MagI3C-FDSM
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
Datasheet
44In Stock
132On Order
Min.: 1
Mult.: 1

Non-Isolated 1 Output 3.3 V 500 mA 11.5 mm (0.453 in) 9 mm (0.354 in) 17.5 mm (0.689 in) Industrial + 85 C - 40 C WPME-FDSM
Wurth Elektronik DC/DC Converters - Through Hole FDSM THT 5V 0.5A 7-28V Input
Datasheet
105In Stock
588Expected 11/09/2026
Min.: 1
Mult.: 1

Non-Isolated 1 Output 5 V 500 mA SIP-3 11.6 mm (0.457 in) 8.5 mm (0.335 in) 10.5 mm (0.413 in) Industrial + 85 C - 40 C MagI3C-FDSM
Wurth Elektronik DC/DC Converters - Through Hole FDSM THT 3.3V 1A 6-36V Input
Datasheet
1,623Expected 23/10/2026
Min.: 1
Mult.: 1

Non-Isolated 1 Output 3.3 V 1 A SIP-3 11.6 mm (0.457 in) 10.4 mm (0.409 in) 8 mm (0.315 in) Industrial + 85 C - 40 C MagI3C-FDSM
Wurth Elektronik DC/DC Converters - Through Hole FDSM THT 3.3V 0.5A 6-28V Input
Datasheet
415Expected 13/11/2026
Min.: 1
Mult.: 1

Non-Isolated 1 Output 3.3 V 500 mA SIP-3 11.6 mm (0.457 in) 8.5 mm (0.335 in) 10.5 mm (0.413 in) Industrial + 85 C - 40 C MagI3C-FDSM